PUBLIC
PRODUCT
SPECIFICATION
TABLE OF CONTENTS
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Marshall
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George
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PUB-1MGeorge
seriesZou
DC/DC Converters
jidgezou
11 (4)
(1)
1/1301-BMR802 Technical Specification
Checked
Checked
Isolated 1W Unregulated Single Output
Date
Date
2016-07-05
3/17/2023
Rev
Rev
Reference
28701-BMR802
A
E
Z Rev. E
March 2023
© Flex
Key Features
• Industry standard SMD package
12.75 x 11.2 x 6.6 mm (0.5 x 0.441 x 0.26 in) for Single
output
15.25 x 11.2 x 6.6 mm (0.6 x 0.441 x 0.26 in) for Dual
output
• High efficiency, typ. 81% at 5Vout full load
• 3000 Vdc input to output isolation
• Wide operating temperature from -40°C to 110°C
• No minimum load required
• Output short-circuit protection
• 5 V, 12 V & 24 V input
• 5 V output
• MTBF 17.9 Mh
General Characteristics
• 1W output power
• Safety Compliance to EN/UL 62368-1
• ISO 9001/14001 certified supplier
Safety Approvals
Meet
Meet
Design for Environment
Meets requirements in hightemperature lead-free soldering
processes.
Contents
Ordering Information
General Information
Safety Specification
Absolute Maximum Ratings
............................................................. 2
............................................................. 2
............................................................. 3
............................................................. 4
Electrical Specification
5-24 VI / 5 VO, 0.2 A / 1 W
PUB-1M Series ..................................... 5
EMC Specification
Operating Information
Thermal Consideration
Connections
Mechanical Information
Soldering Information
Delivery Information
Product Qualification Specification
........................................................... 10
........................................................... 11
........................................................... 12
........................................................... 12
........................................................... 13
........................................................... 14
........................................................... 14
........................................................... 15
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PRODUCT SPECIFICATION
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Checked
Date
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Isolated 1W Unregulated Single Output
Ordering Information
Product
PUB0505S1M
PUB1205S1M
PUB2405S1M
2
Nominal Input
5V
12 V
24 V
n2
March 2023
© Flex
Exemptions in the RoHS directive utilized in Flex products
are found in the Statement of Compliance document.
Output
5.0 V, 0.2 A / 1 W
5.0 V, 0.2 A / 1 W
5.0 V, 0.2 A / 1 W
Product number and Packaging
PUBX1X2X3X4n1n2n3*
Options
n1
Single/Dual output
ο
Rev
28701-BMR802
E
Z Rev. E
n3
Flex fulfills and will continuously fulfill all its obligations
under regulation (EC) No 1907/2006 concerning the
registration, evaluation, authorization and restriction of
chemicals (REACH) as they enter into force and is through
product materials declarations preparing for the obligations
to communicate information on substances in the products.
Quality Statement
Options
Description
n1
S
D
Single Output
Dual Output
n2
1
1W
The products are designed and manufactured in an
industrial environment where quality systems and methods
like ISO 9000, Six Sigma, and SPC are intensively in use to
boost the continuous improvements strategy. Infant
mortality or early failures in the products are screened out
and they are subjected to an ATE-based final test.
Conservative design rules, design reviews and product
qualifications, plus the high competence of an engaged
work force, contribute to the high quality of the products.
n3
M
SMD
Warranty
ο
Output Power
Form factor
ο
Example: a 24Vdc nominal input, single 5Vdc output, 1W SMD product
would be PUB2405S1M.
Warranty period and conditions are defined in Flex General
Terms and Conditions of Sale.
The products are delivered in tape and reel. See details in Delivery Package
Information.
Limitation of Liability
* X1X2 = Nominal input voltage
X3X4 = Output voltage
General Information
Flex does not make any other warranties, expressed or
implied including any warranty of merchantability or fitness
for a particular purpose (including, but not limited to, use in
life support applications, where malfunctions of product can
cause injury to a person’s health or life).
Reliability
© Flex 2023
The failure rate (λ) and mean time between failures
(MTBF= 1/λ) is calculated at max output power and an
operating ambient temperature (TA) of +25°C. Flex uses
MIL-HDBK-217F, Notice 2 to calculate the mean steadystate failure rate.
The information and specifications in this technical
specification is believed to be correct at the time of
publication. However, no liability is accepted for
inaccuracies, printing errors or for any consequences
thereof. Flex reserves the right to change the
contents of this technical specification at any time without
prior notice.
In MIL-HDBK-217F, all part reliability models include the
effects of environmental stresses through the environmental
factor, πE. It encompasses the major areas of equipment
use, here we use ground benign, GB.
MTBF
Mean steady-state failure rate, λ
55.6 nFailures/h
17.9 Mh
Compatibility with RoHS requirements
The products are compatible with the relevant clauses and
requirements of the RoHS directive 2011/65/EU and have a
maximum concentration value of 0.1% by weight in
homogeneous materials for lead, mercury, hexavalent
chromium, PBB and PBDE and of 0.01% by weight in
homogeneous materials for cadmium.
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PRODUCT SPECIFICATION
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1/1301-BMR802 Technical Specification
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Isolated 1W Unregulated Single Output
Safety Specification
General information
Flex Power DC/DC converters and DC/DC regulators are
designed in accordance with the safety standards
IEC 62368-1, EN 62368-1 and UL 62368-1 Audio/video,
information and communication technology equipment Part 1: Safety requirements
IEC/EN/UL 62368-1 contains requirements to prevent injury
or damage due to the following hazards:
•
•
•
•
•
•
3
Electrical shock
Electrically-caused fire
Injury caused by hazardous substances
Mechanically-caused injury
Skin burn
Radiation-caused injury
On-board DC/DC converters, Power interface modules and
DC/DC regulators are defined as component power
supplies. As components they cannot fully comply with the
provisions of any safety requirements without “conditions of
acceptability”. Clearance between conductors and between
conductive parts of the component power supply and
conductors on the board in the final product must meet the
applicable safety requirements. Certain conditions of
acceptability apply for component power supplies with
limited stand-off (see Mechanical Information for further
information). It is the responsibility of the installer to ensure
that the final product housing these components complies
with the requirements of all applicable safety standards and
regulations for the final product.
Component power supplies for general use shall comply
with the requirements in IEC/EN/UL 62368-1. Product
related standards, e.g. IEEE 802.3af Power over Ethernet,
and ETS-300132-2 Power interface at the input to telecom
equipment, operated by direct current (dc) are based on
IEC/EN/UL 62368-1 with regards to safety.
Flex Power DC/DC converters, Power interface modules
and DC/DC regulators are UL 62368-1 recognized and
certified in accordance with EN 62368-1. The flammability
rating for all construction parts of the products meet
requirements for V-0 class material according to
IEC 60695-11-10, Fire hazard testing, test flames – 50 W
horizontal and vertical flame test methods.
Isolated DC/DC converters & Power interface modules
The product may provide basic or functional insulation
between input and output according to IEC/EN/UL 62368-1
(see Safety Certificate), different conditions shall be met if
the output of a basic or a functional insulated product shall
be considered as ES1 energy source.
For basic insulated products (see Safety Certificate) the
output is considered as ES1 energy source if one of the
Date
3/17/2023
Rev
28701-BMR802
E
Z Rev. E
March 2023
© Flex
following conditions is met:
• The input source provides supplementary or double or
reinforced insulation from the AC mains according to
IEC/EN/UL 62368-1.
• The input source provides functional or basic insulation
from the AC mains and the product’s output is reliably
connected to protective earth according to
IEC/EN/UL 62368-1.
For functional insulated products (see Safety Certificate)
the output is considered as ES1 energy source if one of the
following conditions is met:
• The input source provides double or reinforced
insulation from the AC mains according to
IEC/EN/UL 62368-1.
• The input source provides basic or supplementary
insulation from the AC mains and the product’s output is
reliably connected to protective earth according to
IEC/EN/UL 62368-1.
• The input source is reliably connected to protective
earth and provides basic or supplementary insulation
according to IEC/EN/UL 62368-1 and the maximum
input source voltage is 60 Vdc.
Galvanic isolation between input and output is verified in an
electric strength test and the isolation voltage (Viso) meets
the voltage strength requirement for basic insulation
according to IEC/EN/UL 62368-1.
It is recommended to use a slow blow fuse at the input of
each DC/DC converter. If an input filter is used in the circuit
the fuse should be placed in front of the input filter. In the
rare event of a component problem that imposes a short
circuit on the input source, this fuse will provide the
following functions:
• Isolate the fault from the input power source so as not
to affect the operation of other parts of the system
• Protect the distribution wiring from excessive current
and power loss thus preventing hazardous overheating
Non - isolated DC/DC regulators
The DC/DC regulator output is ES1 energy source if the
input source meets the requirements for ES1 according to
IEC/EN/UL 62368-1.
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PUBLIC
PRODUCT SPECIFICATION
2/1301-BMR802Technical Specification
Checked
PUB-1M
series Zou
DC/DC Converters
jidgezou George
Isolated 1W Unregulated Single Output
Date
3/17/2023
Rev
March 2023
28701-BMR802
Rev. E
D
© Flex
Absolute Maximum Ratings
Characteristics
min
max
Unit
TP1
Operating Temperature (see Thermal Consideration section)
-40
typ
+110
°C
TS
Storage temperature
-55
+125
°C
VI
Input voltage Range (base on nominal input voltage)
-10
+10
%
Viso
Isolation voltage (input to output test voltage in 1minute)
3000
Vdc
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the Electrical Specification section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Fundamental Circuit Diagram
5
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PUB-1M
series Zou
DC/DC Converters
jidgezou George
Isolated 1W Unregulated Single Output
Rev
March 2023
28701-BMR802
Rev. E
D
3/17/2023
© Flex
Electrical Specification
PUB-1M series
Typical values given at: TP1 = +25°C, unless otherwise specified under Conditions.
Input Voltage
(±10%)
V
Output
Voltage
V
Output
Current
mA
Efficiency (typ.)
half of max IO
%
Efficiency (typ.)
max IO
%
Capacitive
Load note 1
µF
PUB0505S1M
5
5
200
67.5
76
470
PUB1205S1M
12
5
200
75
81
470
PUB2412S1M
24
5
200
65
75
470
Part Number
Characteristics
CI
Internal input capacitance
PO
Output power
CISO
Isolation capacitance
RISO
Isolation resistance
VOi
Conditions
min
typ
max
1
µF
1
95
TP1 = +25°C , IO = max IO
-5
Minimum load
TP1 = +25°C
0
Line regulation
VLL to VHL, max IO
Load regulation
VO = 5 V , ILL - IHL, at typ. Vin
fs
Switching frequency
0-100 % of max IO
VOac
Output ripple & noise
20 MHz bandwidth limit, see Note 2
Note 1: The maximum capacitive load is test by normal input and constant resistive load.
Note 2: The Output ripple & noise is under nominal Vin and max IO with 0.1 µF /50 V MLCC
W
pF
10
Voltage accuracy
Unit
GΩ
+5
%VO
1.2
1.3
%VO
7.5
10
%VO
100
mVp-p
A
20
kHz
6
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2/1301-BMR802Technical Specification
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PUB-1M
series Zou
DC/DC Converters
jidgezou George
Isolated 1W Unregulated Single Output
3/17/2023
Rev
March 2023
28701-BMR802
Rev. E
D
© Flex
Typical Characteristics
PUB-1M series
100%
100%
80%
80%
Efficiency
Efficiency
Efficiency
Efficiency
60%
4.5Vin
40%
5.0Vin
20%
0%
10
20
30
40
50
60
70
80
10.8Vin
40%
12.0Vin
20%
5.5Vin
0
60%
90
0%
100
Load (%)
13.2Vin
0
10
PUB0505S1M
Efficiency vs. load current at TP1 = +25°C.
Efficiency
50
60
70
Load (%)
80
90
100
Load (%)
100
80%
80
60%
60
21.6Vin
40%
40
24.0Vin
20%
0.5 m/s
20
26.4Vin
0
10
20
30
40
50
Load (%)
60
70
80
90
0
100
Nat. Conv.
-40
-20
PUB2405S1M
Efficiency vs. load current at TP1 = +25°C.
0
20
40
60
80
100
120 [°C]
Available load vs. ambient air temperature and airflow.
See Thermal Consideration section.
Output Voltage Accuracy
Output Voltage Accuracy
30%
30%
4.5Vin
5.0Vin
20%
10%
10.8Vin
12.0Vin
13.2Vin
20%
5.5Vin
Accuracy
Accuracy
40
Operating Ambient Temperature Curve
100%
0%
-10%
-20%
30
PUB1205S1M
Efficiency vs. load current at TP1 = +25°C.
Efficiency
0%
20
10%
0%
-10%
0
10
20
30
40
50
60
70
80
90
Load (%)
PUB0505S1M
Output voltage accuracy vs. load current at TP1 = +25°C.
100
-20%
0
10
20
30
40
50
60
70
80
90
Load (%)
PUB1205S1M
Output voltage accuracy vs. load current at TP1 = +25°C.
100
7
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2/1301-BMR802Technical Specification
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PUB-1M
series Zou
DC/DC Converters
jidgezou George
Isolated 1W Unregulated Single Output
Rev
March 2023
28701-BMR802
Rev. E
D
3/17/2023
© Flex
Typical Characteristics
PUB-1M series
Output Voltage Accuracy
Load Regulation
21.6Vin
24.0Vin
26.4Vin
Accuracy
20%
10%
0%
15%
10
20
30
40
50
60
Load (%)
70
80
90
100
10%
Regulation
30
40
50
60
70
80
12.0Vin
13.2Vin
5%
0%
30
40
50
60
Load (%)
70
80
90
100
PUB1205S1M
Output voltage with load variation vs. load current at TP1 = +25°C.
Output Ripple & Noise
Output voltage ripple at:
TP1 = +25°C, VI = 5 V, VO = 5 V
IO = 200 mA resistive load.
15%
90
100
21.6Vin
24.0Vin
10%
Regulation
10.8Vin
20
20
Load Regulation
15%
10
10
PUB0505S1M
Output voltage with load variation vs. load current at TP1 = +25°C.
Load Regulation
0
0
Load (%)
PUB2405S1M
Output voltage accuracy vs. load current at TP1 = +25°C.
-5%
5.5Vin
0%
-5%
0
5.0Vin
5%
-10%
-20%
4.5Vin
10%
Regulation
30%
26.4Vin
5%
0%
-5%
0
10
20
30
40
50
60
Load (%)
70
80
90
100
PUB2405S1M
Output voltage with load variation vs. load current at TP1 = +25°C.
Output Ripple & Noise
Trace: output voltage (50 mV/div.).
Time scale: (10 µs/div.).
20 MHz bandwidth filter +0.1 µF
Output voltage ripple at:
TP1 = +25°C, VI = 12 V, VO = 5 V
IO = 200 mA resistive load.
Trace: output voltage (50 mV/div.).
Time scale: (10 µs/div.).
20 MHz bandwidth filter +0.1 µF
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PRODUCT SPECIFICATION
2/1301-BMR802Technical Specification
Checked
PUB-1M
series Zou
DC/DC Converters
jidgezou George
Isolated 1W Unregulated Single Output
Date
3/17/2023
Rev
28701-BMR802
Rev. E
D
March 2023
© Flex
Typical Characteristics
PUB-1M series
Output Ripple & Noise
Output voltage ripple at:
TP1 = +25°C, VI = 24 V, VO = 5 V
IO = 200 mA resistive load.
Trace: output voltage (50 mV/div.).
Time scale: (10 µs/div.).
20 MHz bandwidth filter +0.1 µF
Start-up
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 5 V, VO = 5 V
IO = 200 mA resistive load.
Shut-down
Top trace: Input voltage (2 V/div.).
Bottom trace: Output voltage (2 V/div.).
Time scale: (1 ms/div.).
Start-up
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 12 V, VO = 5 V
IO = 200 mA resistive load.
Shut-down, closed by disconnecting VI at:
TP1 = +25°C, VI = 5 V, VO = 5 V
IO = 200 mA resistive load.
Top trace: Input voltage (2 V/div.).
Bottom trace: Output voltage (2 V/div.).
Time scale: (2 ms/div.).
Shut-down
Top trace: Input voltage (5 V/div.).
Bottom trace: Output voltage (2 V/div.).
Time scale: (1 ms/div.).
Shut-down, closed by disconnecting VI at:
TP1 = +25°C, VI = 12 V, VO = 5 V
IO = 200 mA resistive load.
Top trace: Input voltage (5 V/div.).
Bottom trace: Output voltage (2 V/div.).
Time scale: (2 ms/div.).
Prepared (Subject resp)
2/1301-BMR802Technical Specification
Checked
PUB-1M
series Zou
DC/DC Converters
jidgezou George
Isolated 1W Unregulated Single Output
Date
3/17/2023
Rev
28701-BMR802
Rev. E
D
March 2023
© Flex
Typical Characteristics
PUB-1M series
Start-up
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 24 V, VO = 5 V
IO = 200 mA resistive load.
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PUBLIC
PRODUCT SPECIFICATION
Shut-down
Top trace: Input voltage (10 V/div.).
Bottom trace: Output voltage (2 V/div.).
Time scale: (1 ms/div.).
Shut-down, closed by disconnecting VI at:
TP1 = +25°C, VI = 24 V, VO = 5 V
IO = 200 mA resistive load.
Top trace: Input voltage (10 V/div.).
Bottom trace: Output voltage (2 V/div.).
Time scale: (2 ms/div.).
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3/1301-BMR802 Technical Specification
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DC/DC Converters
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Checked
Isolated 1W Unregulated Single Output
Date
3/31/2020
Rev
28701-BMR802
Rev. E
C
March 2023
© Flex
EMC Specification
Conducted EMI measured according to EN55032, CISPR 32
and FCC part 15J (see test set-up). See Design Note 029 for
further information. The minimum switching frequency is 20
kHz. The EMI characteristics below is measured at normal
input and max IO.
Optional external filter for class B
Suggested external input filter in order to meet class B in
EN 55032, CISPR 32 and FCC part 15J.
PUB0505S1M
Test set-up
Layout recommendations
The radiated EMI performance of the product will depend on
the PWB layout and ground layer design. It is also important to
consider the stand-off of the product. If a ground layer is used,
it should be connected to the output of the product and to the
equipment ground or chassis.
A ground layer will increase the stray capacitance in the PWB
and improve the high frequency EMC performance.
EMI external circuit
Series
L1
C1
PUB05-1M
4.7µH
10µF
PUB12-1M
4.7µH
10µF
PUB24-1M
22µH
10µF
Output ripple and noise
Output ripple and noise is measured according to figure
below. See Design Note 022 for detailed information.
Based on different applications or PCB layout conditions, the EMI
requirement may be varied. Recommend to reserve Cy1 for better
EMI performance. Depending on the different requirement of end
users, the value of Cy1 could be adjusted from 33pF to 470pF.
Output ripple and noise test setup
PUB0505S1M
EMI with filter
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3/1301-BMR802 Technical Specification
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Isolated 1W Unregulated Single Output
Operating Information
Input Voltage
Converter with 10% input voltage range, mainly for isolated
power in industrial applications. For example, the input voltage
range 4.5 to 5.5 Vdc meets requirement of general industrial
used for 5Vdc system.
The input voltage should never exceed the absolute voltage of
the converter, and the ambient temperature must be limited to
absolute max +110°C.
The output voltage related to input voltage. Take 5Vin and
5Vo product as an example, if input voltage above 5V, the
output voltage will higher than 5V. Below 5V and the output
voltage starts to track the input voltage.
Short duration transient disturbances can occur on the DC
distribution and input of the product when a short circuit fault
occurs on the equipment side of a protective device (fuse or
circuit breaker). The voltage level, duration and energy of the
disturbance are dependent on the particular DC distribution
network characteristics and can be sufficient to damage the
product unless measures are taken to suppress or absorb this
energy. The transient voltage can be limited by capacitors and
other energy absorbing devices like Zener diodes connected
across the positive and negative input conductors at a number
of strategic points in the distribution network. The end-user
must secure that the transient voltage will not exceed the
value stated in the Absolute maximum ratings. ETSI TR
100 283 examines the parameters of DC distribution networks
and provides guidelines for controlling the transient and
reduce its harmful effect.
Turn-off Input Voltage
The products do not have under voltage lock-out function.
Please make sure the input voltage of each module is correct
working range.
Input and Output Impedance
The impedance of both the input source and the load will
interact with the impedance of the product. It is important that
the input source has low characteristic impedance.The
product are designed for stable operation without external
capacitors. With a 10µF capacitors connected to the input
could reduce the input noise cause by parasitic inductance.
External Decoupling Capacitors
When powering loads with significant dynamic current
requirements, the voltage regulation at the load can be
improved by addition of decoupling capacitors at the load.
The most effective technique is to locate low ESR ceramic and
electrolytic capacitors as close to the load as possible, using
several parallel capacitors to lower the effective ESR. The
ceramic capacitors will handle high-frequency dynamic load
Date
3/31/2020
Rev
28701-BMR802
Rev. E
C
March 2023
© Flex
changes while the electrolytic capacitors are used to handle
low frequency dynamic load changes. It is equally important to
use low resistance and low inductance PWB layouts and
cabling.
External decoupling capacitors will become part of the
product’s control loop. The control loop is optimized for a wide
range of external capacitance and the maximum and minimum
recommended value that could be used without any additional
analysis is found in the Electrical specification. The ESR of the
capacitors is a very important parameter. Stable operation is
guaranteed with a verified ESR value of >1 mΩ across the
output connections.
For further information please contact your local Flex Power
Modules representative.
Parallel Operation
This product is not designed for paralleling without using
external current sharing circuits. See Design Note 006 for
detailed information.
Over Current Protection (OCP)
The products include current limiting circuitry for protection at
continuous overload. The OCP works in a hiccup mode and
will make continous attempts to start up and will resume
normal operation automatically after removal of the over
current condition. The load distribution should be designed for
the specified maximum output short circuit current.
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DC/DC Converters
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Checked
Isolated 1W Unregulated Single Output
Date
Rev
28701-BMR802
Rev. E
C
3/31/2020
© Flex
Connections
Thermal Consideration
General
The products are designed to operate in different thermal
environments and sufficient cooling must be provided to
ensure reliable operation.
For products mounted on a PWB without a baseplate
attached, cooling is achieved mainly by conduction, from the
pins to the host board, and convection, which is dependant on
the airflow across the product. Increased airflow enhances the
cooling of the product. The Output Current Derating graph
found in the Output section for each model provides the
available output current vs. ambient air temperature and air
velocity.
The product is tested on a 95 x 85 mm, 35 µm (1 oz), 2-layer
test board mounted horizontally in a space with a volume of
300(L) x 300(W) x 200(H) mm.
Bottom View
PUBxxxxS1M series
Pin
1
Designation
-Vin
Function
Negative Input
2
+Vin
Positive Input
4
-Vo
Negative Output
5
+Vo
Positive Output
8
NC
No-connect
Connections
Definition of product operating temperature
The temperature at the positions P1, P2 (TP1, TP2) should not
exceed the maximum temperatures in the table below. The
number of measurement points may vary with different thermal
design and topology. Temperatures above maximum
measured at the reference point P1, P2 are not allowed and
may cause permanent damage.
Position
Description
Max Temp.
P1
Driver, Reference point
TP1=110ºC
P2
PWB
TP2=110ºC
Pin side (baseplate module)
3 (4)
No.
jidgezou George Zou
Approved (Document resp)
12
Bottom View
PUBxxxxD1M series
Pin
1
Designation
-Vin
Function
Negative Input
2
+Vin
Positive Input
4
COM
Common
5
-Vo
Negative Output
7
+Vo
Positive Output
10
NC
No-connect
March 2023
PUBLIC
PRODUCT SPEC. MECHANICAL
Prepared (Subject resp)
No.
jidgezou George Zou
4/1301-BMR802
Technical Specification
Date
Rev
PUB-1M series DC/DC Converters
jidgezou George Zou
Isolated 1W Unregulated Single Output
Approved (Document resp)
Checked
3/24/2020
28701-BMR802 Rev. E
B
13
1 (2)
March 2023
© Flex
Mechanical Information - Surface Mounting Version
PUBxxxxS1M
PUBxxxxD1M
All component placements – whether shown as physical components or symbolical outline – are for reference only and are subject to change throughout the product’s life cycle,
unless explicitly described and dimensioned in this drawing.
14
PUBLIC
PRODUCT SPEC.
Prepared (Subject resp)
1 (3)
No.
jidgezou George Zou
5/1301 - BMR802
Technical Specification
Approved (Document resp)
PUB-1MGeorge
seriesZou
DC/DC Converters
jidgezou
Checked
Date
3/17/2023
Isolated 1W Unregulated Single Output
Soldering Information - Surface Mounting
The surface mount product is intended for forced convection or
vapor phase reflow soldering in SnPb and Pb-free processes.
The reflow profile should be optimised to avoid excessive
heating of the product. It is recommended to have a sufficiently
extended preheat time to ensure an even temperature across
the host PWB and it is also recommended to minimize the time
in reflow.
Rev
28701-BMR802
Rev. E
C
March 2023
© Flex
Pb-free solder processes
For Pb-free solder processes, the product is qualified for MSL 1
according to IPC/JEDEC standard J-STD-020C.
During reflow TPRODUCT must not exceed 250 °C at any time.
Thermocouple Attachment
Top of PWB near front center for measurement of maximum product
temperature, TPRODUCT
A no-clean flux is recommended to avoid entrapment of
cleaning fluids in cavities inside the product or between the
product and the host board, since cleaning residues may affect
long time reliability and isolation voltage.
General reflow process specifications
Pb-free
Average ramp-up (TPRODUCT)
3°C/s max
Typical solder melting (liquidus)
temperature
TL
Minimum reflow time above TL
221°C
Pin near the tail for measurement of minimum pin (solder joint)
temperature, TPIN
60 s
Minimum pin temperature
TPIN
235°C
Peak product temperature
TPRODUCT
250°C
Average ramp-down (TPRODUCT)
6°C/s max
Maximum time 25°C to peak
8 minutes
Delivery Package Information
The products are delivered in antistatic tape & reel.
Temperature
Tape reel Specifications – SMD
TPRODUCT maximum
TPIN minimum
Pin
profile
TL
Time in preheat
/ soak zone
Time 25°C to peak
Time in
reflow
Product
profile
Material
Antistatic PS
Surface resistance
105 < Ohm/square < 1012
6.7 kg full reel for PUBxxxxS1M
5.4 kg full reel for PUBxxxxD1M
1.4 g / pc
Tape reel weight
Module weight
PUB-1M series
Time
Minimum Pin Temperature Recommendations
Pin near the tail is chosen as reference location for the
minimum pin temperature recommendation since this will likely
be the coolest solder joint during the reflow process.
Lead-free (Pb-free) solder processes
For Pb-free solder processes, a pin temperature (TPIN) in
excess of the solder melting temperature (TL, 217 to 221°C for
SnAgCu solder alloys) for more than 60 seconds and a peak
temperature of 245°C on all solder joints is recommended to
ensure a reliable solder joint.
Maximum Product Temperature Requirements
Top of the product PWB near front center is chosen as
reference location for the maximum (peak) allowed product
temperature (TPRODUCT) since this will likely be the warmest part
of the product during the reflow process.
1Tape Reel = 500 converters for PUBxxxxS1M
1Tape Reel = 400 converters for PUBxxxxD1M
All dimensions in mm
Note: pick up positions refer to center of pocket.
See mechanical drawing for exact location on product.
15
PUBLIC
PRODUCT SPEC.
Prepared (Subject resp)
2 (3)
No.
jidgezou George Zou
5/1301 - BMR802
Technical Specification
Approved (Document resp)
PUB-1MGeorge
seriesZou
DC/DC Converters
jidgezou
Checked
Isolated 1W Unregulated Single Output
Date
3/17/2023
Rev
28701-BMR802
Rev. E
C
© Flex
Product Qualification Specification
Characteristics
External visual inspection
IPC-A-610
Change of temperature
(Temperature cycling)
MI-STD-202G, method 107G
Temperature range
Number of cycles
Dwell/transfer time
-55 to 125°C
1000
30 min/0-1 min
Cold (in operation)
IEC 60068-2-1 Ad
Temperature TA
Duration
-45°C
72 h
Damp heat
MIL-STD-202G, Method 103B
Temperature
Humidity
Duration
85°C
95 % RH
1000 hours
Dry heat
IEC 60068-2-2 Bd
Temperature
Duration
125°C
1000 h
Electrostatic discharge
susceptibility
IEC 61000-4-2
Air model
Contact model
8000 V
6000 V
Mechanical shock
MIL-STD-202G, method 213B
Peak acceleration
Duration
100 g
6 ms
Moisture reflow sensitivity 1
J-STD-020C
Level 1 (Pb Free)
250°C
Operational life test
MIL-STD-202G, method 108A
Duration
1000 h
Robustness of terminations
IEC 60068-2-21 Test Ua1
IEC 60068-2-21 Test Ue1
Through hole mount products
Surface mount products
All leads
All leads
Solderability
J-STD-002
Preconditioning
Temperature, Pb-free
Steam ageing 8 h
245°C
Vibration
MIL-STD-202G, method 201A
Frequency
Displacement
Duration
10 to 55 Hz
0.06 inch
2 h in each direction
Notes
1
Only for products intended for reflow soldering (surface mount products)
March 2023
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