DATA SHEET
POSITIVE TEMPERATURE COEFFICIENT
AC/DC POWER SUPPLY
SMD2920 series
Product specification– September 01, 2023 V.4
RoHS compliant & Halogen free
Circuit Protection
POSITIVE TEMPERATURE COEFFICIENT
Product Specification
2
11
SMD2920
Positive Temperature Coefficient (PTC) Data Sheet
Description
The 2920 series provides surface mount resettable overcurrent protection with
holding current from 0.3A to 7.0A. This series offers complete portfolio in terms of
holding current and working voltage, and is suitable for wide range of application.
Features
■ RoHS compliant and lead-free
■ Fast response to fault current
■ UL/CUL/ TUV/ RoHS/ Halogen Free
■ Low profile
■ Compatible with high temperature solders
■ Compact design saves board space
Applications
■ USB hubs, ports and peripherals
■ Set-top-box and HDMI
■ Game console port protection
■ Motherboard USB & IEEE 1394 protection
■ Optical disk drives
■ General electronics
Part Number Code and Marking
SMD 2920 B
TF T /
Special Voltage Rating (Optional)
Thickness Version (Optional)
Lead-Free
Holding Current Rating
Delimiter
Device Dimensions: Length/Width (Unit: 1/100 inch)
Surface Mount Device
Part Number
Marking
Part Number
Marking
Part Number
Marking
SMD2920B030TF
030
SMD2920B150TF
150
SMD2920B300TF/30
3030
SMD2920B050TF
050
SMD2920B185TF
185
SMD2920B330TF
330
SMD2920B075TF
075
SMD2920B200TF/24
2024
SMD2920B400TF
400
SMD2920B075TF/60
0760
SMD2920B250TF
250
SMD2920B500TF
500
SMD2920B100TF
100
SMD2920B260TF
260
SMD2920B500TF/16
5016
SMD2920B110TF/60
110
SMD2920B260TF/24
2624
SMD2920B600TF/12
6012
SMD2920B125TF
125
SMD2920B300TF/15
3015
SMD2920B700TF/12
7012
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Sep. 01, 2023 V.4
Circuit Protection
POSITIVE TEMPERATURE COEFFICIENT
3
Product Specification
11
SMD2920
Dimensions and PAD-SIZE
C
A
BK Logo
Marking
B
Marking
Part identification
D
Part
Number
A
E
B
C
D
E
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
SMD2920B030TF
6.73
7.98
4.80
5.44
0.65
1.15
0.30
2.50
0.25
2.00
SMD2920B050TF
6.73
7.98
4.80
5.44
0.65
1.15
0.30
2.50
0.25
2.00
SMD2920B075TF
6.73
7.98
4.80
5.44
0.55
1.05
0.30
2.50
0.25
2.00
SMD2920B075TF/60
6.73
7.98
4.80
5.44
0.55
1.05
0.30
2.50
0.25
2.00
SMD2920B100TF
6.73
7.98
4.80
5.44
0.45
0.95
0.30
2.50
0.25
2.00
SMD2920B110TF/60
6.73
7.98
4.80
5.44
0.90
1.40
0.30
2.50
0.25
2.00
SMD2920B125TF
6.73
7.98
4.80
5.44
0.35
0.85
0.30
2.50
0.25
2.00
SMD2920B150TF
6.73
7.98
4.80
5.44
0.90
1.40
0.30
2.50
0.25
2.00
SMD2920B185TF
6.73
7.98
4.80
5.44
0.90
1.40
0.30
2.50
0.25
2.00
SMD2920B200TF/24
6.73
7.98
4.80
5.44
0.90
1.40
0.30
2.50
0.25
2.00
SMD2920B250TF
6.73
7.98
4.80
5.44
0.70
1.20
0.30
2.50
0.25
2.00
SMD2920B260TF
6.73
7.98
4.80
5.44
0.70
1.20
0.30
2.50
0.25
2.00
SMD2920B260TF/24
6.73
7.98
4.80
5.44
0.70
1.20
0.30
2.50
0.25
2.00
SMD2920B300TF/15
6.73
7.98
4.80
5.44
0.70
1.20
0.30
2.50
0.25
2.00
SMD2920B300TF/30
6.73
7.98
4.80
5.44
0.75
1.25
0.30
2.50
0.25
2.00
SMD2920B330TF
6.73
7.98
4.80
5.44
1.20
2.00
0.30
2.50
0.25
2.00
SMD2920B400TF
6.73
7.98
4.80
5.44
0.60
1.10
0.30
2.50
0.25
2.00
SMD2920B500TF
6.73
7.98
4.80
5.44
0.90
1.40
0.30
2.50
0.25
2.00
SMD2920B500TF/16
6.73
7.98
4.80
5.44
0.90
1.40
0.30
2.50
0.25
2.00
SMD2920B600TF/12
6.73
7.98
4.80
5.44
0.80
1.60
0.30
2.50
0.25
2.00
SMD2920B700TF/12
6.73
7.98
4.80
5.44
0.80
1.60
0.30
2.50
0.25
2.00
Recommended Pad Layout (mm)
5.30typ.
4.60typ.
2.00typ.
2.00typ.
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Sep. 01, 2023 V.4
Circuit Protection
POSITIVE TEMPERATURE COEFFICIENT
4
Product Specification
11
SMD2920
Electrical Characteristics
Part
Number
Maximum
Time To Trip
Time
Current
(Sec.)
(A)
Ihold
(A)
Itrip
(A)
Vmax
(Vdc)
Imax
(A)
Pd typ.
(W)
SMD2920B030TF
0.30
0.60
60
10
1.50
3.0
SMD2920B050TF
0.50
1.00
60
10
1.50
SMD2920B075TF
0.75
1.50
30
40
SMD2920B075TF/60
0.75
1.50
60
SMD2920B100TF
1.10
2.20
SMD2920B110TF/60
1.10
SMD2920B125TF
Resistance
Rmin
(Ω)
R1max
(Ω)
1.5
0.600
4.800
4.0
2.5
0.180
1.400
1.50
0.3
8.0
0.100
1.000
10
1.50
0.3
8.0
0.100
0.950
33
40
1.50
0.5
8.0
0.065
0.410
2.20
60
20
2.00
0.5
8.0
0.120
0.410
1.25
2.50
15
40
1.50
2.0
8.0
0.050
0.250
SMD2920B150TF
1.50
3.00
33
40
1.50
2.0
8.0
0.035
0.230
SMD2920B185TF
1.85
3.70
33
40
1.50
2.5
8.0
0.030
0.150
SMD2920B200TF/24
2.00
4.00
24
40
1.50
5.0
8.0
0.020
0.125
SMD2920B250TF
2.50
5.00
15
40
1.50
5.0
8.0
0.020
0.085
SMD2920B260TF
2.60
5.0
6
40
1.5
10.0
8.0
0.014
0.075
SMD2920B260TF/24
2.60
5.0
24
40
1.5
5.0
8.0
0.014
0.075
SMD2920B300TF/15
3.00
5.0
15
40
1.5
20.0
8.0
0.012
0.048
SMD2920B300TF/30
3.00
5.0
30
40
1.5
20.0
8.0
0.012
0.048
SMD2920B330TF
3.30
5.50
30
40
2.0
5.0
8.0
0.015
0.055
SMD2920B400TF
4.00
8.0
15
40
1.5
4.0
20.0
0.008
0.040
SMD2920B500TF
5.00
10.0
12
40
1.5
5.0
20.0
0.005
0.031
SMD2920B500TF/16
5.00
10.0
16
40
2.0
5.0
20.0
0.005
0.031
SMD2920B600TF/12
6.00
12.00
12
50
2.0
2.0
30.0
0.004
0.020
SMD2920B700TF/12
7.00
14.00
12
50
2.0
2.0
35.0
0.0035
0.0180
Note on Electrical Characteristics
■ Vocabulary
·Ihold = Hold current: maximum current device will pass without tripping in 23℃ still air.
·Itrip = Trip current: minimum current at which the device will trip in 23℃ still air.
·Vmax = Maximum voltage device can withstand without damage at rated current (Imax)
·Imax = Maximum fault current device can withstand without damage at rated voltage (Vmax)
·Pd typ. = Typical power dissipated from device when in the tripped state at 23℃ still air.
·Rmin = Minimum resistance of device in initial (un-soldered) state.
·R1max = Maximum resistance of device at 23℃ measured one hour after tripping or reflow soldering of 260℃ for 20 sec.
■ Value specified is determined by using the PWB with 0.090”*1.5oz copper traces.
■ Caution: Operation beyond the specified rating may result in damage and possible arcing and flame.
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Sep. 01, 2023 V.4
Circuit Protection
POSITIVE TEMPERATURE COEFFICIENT
Product Specification
SMD2920
5
11
Polymeric PTC Selecting Guide
■ Determine the following operating parameters for the circuits:
·Normal operating current (Ihold)
·Maximum interrupt current (Imax)
·Maximum circuit voltage (Vmax)
·Normal operating temperature surrounding device (min℃/max℃)
■ Select the device from factor and dimension suitable for the application
■ Compare the maximum rating for Vmax and Imax of the PPTC device with the circuit in application and make sure
the circuit’s requirement does not exceed the device rating.
■ Check that PPTC device’s trip time (time-to-trip) will protect the circuit.
■ Verify that the circuit operating temperature is within the PPTC device’s normal operating temperature range.
■ Verify that performance and suitability of the chosen PPTC device in the application.
! WARNING
■ Mechanical Stress
·PPTC devices will undergo a thermal expansion during fault condition. If PPTC devices are installed or placed in an application
where the space between PPTC devices and the surrounding materials (e.g., covering materials, packaging materials, encapsulate
materials and the like) is insufficient, it will cause an inhibiting effect upon the thermal expansion. Pressing, twisting, bending and
other kinds of mechanical stress will also adversely affect the performance of the PPTC devices, and shall not be used or applied.
■ Chemical Pollutants
·Silicone-based oils, oils, solvents, gels, electrolytes, fuels, acids, and the like will adversely affect the properties of PPTC devices,
and shall not be used or applied.
■ Electronic and Thermal Effect
·PPTC devices are secondary protection devices and are used solely for sporadic, accidental over-current or over-temperature
error condition, and shall NOT be used if or when constant or repeated fault conditions (such fault conditions may be caused by,
among others, incorrect pin-connection of a connector) or over-extensive trip events may occur.
·PPTC devices are different from fuses and, when a fault condition occurs, will go into high-resistance state and do not open
circuit, in which case the voltage at such PPTC devices may reach a hazardous level.
·Operation over the maximum rating or other forms of improper use may cause failure, arcing, flame and/or other damage to
the PPTC devices.
·Conductive material contamination, such as metal particle, may induce shortage, flame or arcing.
·Due to the inductance, the operation circuits may generate a circuit voltage (Ldi/dt) above the rated voltage of PPTC devices,
which shall not be used under such circumstances.
■ General
·Customers shall evaluate and test the properties of PPTC devices independently to verify and ensure that their individual
applications will be met.
·The performance of PPTC devices will be adversely affected if they are improperly used under electronic, thermal and/or
mechanical procedures and/or conditions non-conformant to those recommended by manufacturer.
·Customers shall be responsible for determining whether it is necessary to have back-up, failsafe and/or fool-proof protection
To avoid or minimize damage that may result from extra-ordinary, irregular function or failure of PPTC devices.
·Any and all responsibilities and liabilities are disclaimed if any item under this notice of warning is not complied with.
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Sep. 01, 2023 V.4
Circuit Protection
POSITIVE TEMPERATURE COEFFICIENT
Product Specification
6
11
SMD2920
Thermal Derating Curve
Percentage of Rated Current
200.00
150.00
100.00
50.00
0.00
-40.00
0.00
40.00
80.00
120.00
Device Ambient Temperature (℃)
Thermal Derating Chart
Recommended Hold Current (A) at Ambient Temperature (℃)
Part
Number
Ambient Operation Temperature
-40℃
-20℃
0℃
23℃
40℃
50℃
60℃
70℃
85℃
SMD2920B030TF
0.45
0.40
0.35
0.30
0.25
0.23
0.20
0.17
0.14
SMD2920B050TF
0.76
0.67
0.59
0.50
0.42
0.38
0.33
0.29
0.23
SMD2920B075TF
1.13
1.01
0.88
0.75
0.62
0.56
0.50
0.44
0.34
SMD2920B075TF/60
1.13
1.01
0.88
0.75
0.62
0.56
0.50
0.44
0.34
SMD2920B100TF
1.66
1.47
1.29
1.10
0.91
0.83
0.73
0.64
0.50
SMD2920B110TF/60
1.66
1.47
1.29
1.10
0.91
0.83
0.73
0.64
0.50
SMD2920B125TF
1.89
1.68
1.46
1.25
1.04
0.94
0.83
0.73
0.56
SMD2920B150TF
2.27
2.01
1.76
1.50
1.25
1.13
1.00
0.87
0.74
SMD2920B185TF
2.80
2.47
2.17
1.85
1.54
1.39
1.22
1.07
0.85
SMD2920B200TF/24
3.14
2.77
2.42
2.00
1.73
1.56
1.38
1.20
0.98
SMD2920B250TF
3.78
3.35
2.93
2.50
2.08
1.88
1.65
1.45
1.13
SMD2920B260TF
3.64
3.25
2.91
2.60
2.26
2.08
1.95
1.74
1.48
SMD2920B260TF/24
3.64
3.25
2.91
2.60
2.26
2.08
1.95
1.74
1.48
SMD2920B300TF/15
4.20
3.85
3.44
3.00
2.69
2.50
2.31
2.12
1.83
SMD2920B300TF/30
4.20
3.85
3.44
3.00
2.69
2.50
2.31
2.12
1.83
SMD2920B330TF
4.60
4.20
3.75
3.30
2.95
2.75
2.50
2.25
1.70
SMD2920B400TF
5.50
5.00
4.50
4.00
3.40
3.10
2.80
2.50
2.10
SMD2920B500TF
7.55
6.70
5.85
5.00
4.15
3.75
3.30
2.90
2.25
SMD2920B500TF/16
7.55
6.70
5.85
5.00
4.15
3.75
3.30
2.90
2.25
SMD2920B600TF/12
8.58
7.83
7.05
6.00
5.27
4.87
4.48
4.05
3.38
SMD2920B700TF/12
9.48
8.73
7.92
7.00
6.36
5.88
5.41
4.83
3.94
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Sep. 01, 2023 V.4
Circuit Protection
POSITIVE TEMPERATURE COEFFICIENT
Product Specification
7
11
SMD2920
Average Time-Current Curve
100
A
B
C
A-SMD2920B030TF
D E
B-SMD2920B050TF
F
C-SMD2920B075TF
10
Time to Trip (s)
SMD2920B075TF/60
D-SMD2920B100TF
SMD2920B110TF
1
E-SMD2920B150TF
F-SMD2920B185TF
0.1
0.01
0.1
1
10
100
Fault Current (A)
100
C
A B
D EF G
A-SMD2920B125TF
H
B-SMD2920B200TF/24
I
C-SMD2920B250TF
10
D-SMD2920B260TF
Time to Trip (s)
SMD2920B260TF/24
E-SMD2920B300TF/15
F- SMD2920B330TF
1
G-SMD2920B400TF
H-SMD2920B500TF
SMD2920B500TF/16
0.1
I- SMD2920B600TF/12
SMD2920B700TF/12
0.01
1
10
100
Fault Current (A)
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Sep. 01, 2023 V.4
Circuit Protection
POSITIVE TEMPERATURE COEFFICIENT
Product Specification
8
11
SMD2920
Soldering Parameters
Critical Zone
TL to TP
tP
TP
Ramp-up
TL
tL
Temperature
TS max
TS min
Ramp-down
tS
Preheat
25
t 25℃ to Peak
Time
Profile Feature
Pb-Free Assembly
Average ramp-up rate (TS max to TP)
3℃/second max.
Preheat
-Temperature Min (TS min)
-Temperature Max (TS max)
-Time (min to max) (TS min to TS max)
150℃
200℃
60-180 seconds
Time maintained above:
-Temperature (TL)
-Time (tL)
217℃
60-150 seconds
Peak Temperature (TP)
260℃
Time within 5℃ of actual Peak Temperature (tP)
Ramp-down Rate
Time 25℃ to Peak Temperature
Storage Condition
20-40 seconds
6℃/second max.
8 minutes max.
0℃~35℃, ≤70%RH
·Recommended reflow methods: IR, vapor phase oven, hot air oven, N2 environment for lead-free
·Recommended maximum paste thickness is 0.25mm (0.010 inch)
·Device can be cleaned using standard industry methods and solvents.
Note 1: All temperature refer to topside of the package, measured on the package body surface.
Note 2: If reflow temperatures exceed the recommended profile, devices may not meet the performance
requirements.
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Sep. 01, 2023 V.4
Circuit Protection
POSITIVE TEMPERATURE COEFFICIENT
Product Specification
9
11
SMD2920
Environmental Specifications
Operating / Storage temperature
-40℃ to +85℃
Maximum Device Surface Temperature in Tripped State
125℃
Passive Aging
+85℃, 1000 hours
±50% typical resistance change
Humidity Aging
+85℃, 85%RH, 1000 hours
±50% typical resistance change
Thermal Shock
MIL-STD-202, Method 107G
+85℃/-40℃ 20 times
-50% typical resistance change
Solvent Resistance
MIL-STD-202, Method 215
No change
Vibration
MIL-STD-883C, Method 2007.1, Condition A
No change
Moisture Level Sensitivity
Level 1, J-STD-020C
Physical Specifications
Terminal Material
Solder-Plated Copper (Solder Material: Matte Tin (Sn))
Terminal Solderability
Meets EIA Specification RS186-9E, ANSI/J-STD-002 Category 3.
Packaging
Part Number
Quantity
Part Number
Quantity
Part Number
Quantity
SMD2920B030TF
1500
SMD2920B150TF
1500
SMD2920B300TF/30
1500
SMD2920B050TF
1500
SMD2920B185TF
1500
SMD2920B330TF
1000
SMD2920B075TF
1500
SMD2920B200TF/24
1500
SMD2920B400TF
1000
SMD2920B075TF/60
1000
SMD2920B250TF
1500
SMD2920B500TF
1000
SMD2920B100TF
2000
SMD2920B260TF
2000
SMD2920B500TF/16
1000
SMD2920B110TF/60
1500
SMD2920B260TF/24
1500
SMD2920B600TF/12
1000
SMD2920B125TF
2000
SMD2920B300TF/15
1500
SMD2920B700TF/12
1000
◎ 8mm tape on 7 inch reel per EIA-481 (equivalent to IEC286, part 3)
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Sep. 01, 2023 V.4
Circuit Protection
POSITIVE TEMPERATURE COEFFICIENT
Product Specification
10
11
SMD2920
Tape
Dimensions (mm)
B030TF, B110TF/60
B050TF
B075TF, B150TF
B185TF, B250TF
B200TF/24
B260TF/24
B300TF/15
B300TF/30
B100TF
B125TF
B260TF
W
16.00±0.30
16.00±0.30
16.00±0.30
F
7.50±0.10
7.50±0.10
7.50±0.10
E1
1.75±0.10
1.75±0.10
1.75±0.10
D0
1.55±0.05
1.55±0.05
1.50±0.10
D1
1.50±0.10
1.50±0.10
1.50(MIN)
P0
4.00±0.10
4.00±0.10
4.00±0.10
P1
8.00±0.10
8.00±0.10
8.00±0.10
P2
2.00±0.10
2.00±0.10
2.00±0.10
A0
5.74±0.10
5.74±0.10
5.74±0.10
B0
8.02±0.10
8.02±0.10
8.02±0.10
T
0.30±0.10
0.30±0.10
0.30±0.10
K0
1.30±0.10
0.91±0.10
2.00±0.10
Leader min.
390
390
390
Trailer min.
160
160
160
Symbol
P2
P1
D0
T
B0
D1
W
F
E
P0
K0
A0
Reel
C
Φ180.0±3.0
D
Φ60.0±0.5
H
19.5±1.0
W
17.0±0.2
B075TF/60
B330TF
B400TF
B500TF
B500TF/16
B600TF/12
B700TF/12
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Sep. 01, 2023 V.4
Circuit Protection
POSITIVE TEMPERATURE COEFFICIENT
Product Specification
11
11
SMD2920
Legal Disclaimer
YAGEO, its distributors and agents (collectively, “YAGEO”), hereby disclaims any and all liabilities for any
errors, inaccuracies or incompleteness contained in any product related information, including but not limited to
product specifications, datasheets, pictures and/or graphics. YAGEO may make changes, modifications and/or
improvements to product related information at any time and without notice.
YAGEO makes no representation, warranty, and/or guarantee about the fitness of its products for any part icular
purpose or the continuing production of any of its products. To the maximum extent permitted by law, YAGEO
disclaims (i) any and all liability arising out of the application or use of any YAGEO product, (ii) any and all
liability, including without limitation special, consequential or incidental damages, and (iii) any and all implied
warranties, including warranties of fitness for a particular purpose, non -infringement and merchantability.
YAGEO products are designed for general purpose applicatio ns under normal operation and usage conditions.
Please contact YAGEO for the applications listed below which require especially high reliability for the
prevention of defects which might directly cause damage to the third party's life, body or property: Ae rospace
equipment (artificial satellite, rocket, etc.), Atomic energy -related equipment, Aviation equipment, Disaster
prevention equipment, crime prevention equipment, Electric heating apparatus, burning equipment, Highly public
information network equipment, data-processing equipment , Medical devices, Military equipment, Power
generation control equipment, Safety equipment, Traffic signal equipment, Transportation equipment and
Undersea equipment, or for any other application or use in which the failure o f YAGEO products could result in
personal injury or death, or serious property damage. Particularly YAGEO Corporation and its affiliates do
not recommend the use of commercial or automotive grade products for high reliability
applications or manned space flight.
Information provided here is intended to indicate product specifications only. YAGEO reserves all the rights for
revising this content without further notification, as long as products are unchanged. Any product change will be
announced by PCN.
www.yageo.com
Sep. 01, 2023 V.4