RSPF / RSPL Series
Stackpole Electronics, Inc.
Flameproof Power Resistor
Resistive Product Solutions
Features:
•
•
•
•
•
•
•
•
•
Robust metal oxide film element
Flameproof design
Compact size
Useful in circuits where duty cycles require power resistors
Tin-plated copper leads
Cut and formed product is available on select sizes - contact Stackpole for details
100% RoHS compliant and lead free without exemption
Halogen free
REACH compliant
Electrical Specifications - RSPF
Type / Code
Power Rating (W)
@ 70ºC
RSPF14
RSPF12
RSPF1
RSPF2
RSPF3
0.25
0.5
1
2
3
Maximum
Working
Voltage (V)(1)
250
400
500
500
500
Maximum
Overload
Voltage (V)
500
800
1000
1000
1000
TCR (ppm/ºC)
- 200 ~ + 350
Ohmic Range (Ω) and Tolerance
1%, 2%
5%
10 - 100K
2.2 - 1M
Electrical Specifications - RSPL
Type / Code
Power Rating (W)
@ 70ºC
Maximum
Working
Voltage (V)(1)
RSPL14
0.25
RSPL12
0.5
√ P*R
RSPL1
1
RSPL2
2
RSPL3
3
(1) Lesser of √ P*R or maximum working voltage
Maximum
Overload
Voltage (V)
TCR (ppm/ºC)
√ P*R x 2.5
- 200 ~ + 350
Ohmic Range (Ω) and Tolerance
1%, 2%
5%
-
0.1 - 2
Mechanical Specifications
Type / Code
RSPF14 / RSPL14
RSPF12 / RSPL12
RSPF1 / RSPL1
RSPF2 / RSPL2
RSPF3 / RSPL3
A
Body Length
0.13 +0.008 / 3.20 +0.20 / -0
0.24 ± 0.020
6.00 ± 0.50
0.35 ± 0.039
9.00 ± 1.00
0.43 ± 0.039
11.00 ± 1.00
0.59 ± 0.039
15.00 ± 1.00
Rev Date: 10/22/2020
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
B
Body Diameter
0.07 ± 0.01
1.82 ± 0.20
0.09 ± 0.01
2.30 ± 0.20
0.12 ± 0.02
3.00 ± 0.50
0.16 ± 0.02
4.00 ± 0.50
0.22 ± 0.04
5.50 ± 1.00
1
C
Lead Length (Bulk)
1.10 ± 0.12
28.00 ± 3.00
1.10 ± 0.12
28.00 ± 3.00
1.10 ± 0.12
28.00 ± 3.00
1.10 ± 0.12
28.00 ± 3.00
1.38 ± 0.12
35.00 ± 3.00
D
Lead Diameter
0.02 ± 0.002
0.45 ± 0.05
0.02 ± 0.002
0.55 ± 0.05
0.03 ± 0.002
0.70 ± 0.05
0.03 ± 0.002
0.80 ± 0.05
0.03 ± 0.002
0.80 ± 0.05
Unit
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
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RSPF / RSPL Series
Stackpole Electronics, Inc.
Flameproof Power Resistor
Resistive Product Solutions
Performance Characteristics
Test
Test Results
± (0.75% + 0.05Ω)
± (5% + 0.05Ω)
± (5% + 0.05Ω)
± (5% + 0.05Ω)
Permanent marking no physical damage or deterioration
Short Time Overload
Moisture Resistance
Load Life @ 70ºC - 1000 hours
Dielectric Withstanding Voltage
Resistance to Solvent
Operating temperature range is -55ºC to +155ºC
Power Derating Curve:
Repetitive Pulse Information:
If repetitive pulses are applied to resistors, pulse wave form must be less than “pulse limiting voltage”, “pulse limiting
current” or “pulse limiting wattage” calculated by the formula below.
Vp = K√P x R x T/t
lp = K√P/R x T/t
Pp = K2 x P x T/t
Where: Vp:
lp:
Pp:
P:
R:
T:
t:
K:
[Vr:
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Pulse limiting voltage (V)
Pulse limiting current (A)
Pulse limiting wattage (W)
Power rating (W)
Nominal resistance (ohm)
Repetitive period (sec)
Pulse duration (sec)
Coefficient: 0.9
Rated Voltage (V), Ir: Rated Current (A)]
If T > 10 → T = 10 (sec), T / t > 1000 → T / t = 1000
If T > 10 and T / t > 1000, “Pulse Limiting power (Single pulse) is applied
If Vp < Vr (lp < lr or Pp < P), Vr (lr, P) is Vp (lp, Pp)
Pulse limiting voltage (current, wattage) is applied at less than rated ambient temperature.
If ambient temperature is more than the rated temperature (70°C), decrease power rating according to “Power
Derating Curve”
Assure sufficient margin for use period and conditions for “pulse limiting voltage”
If the pulse waveform is not square wave, judge after transform the waveform into square
wave according to the “Waveform Transformation to Square Wave”.
Rev Date: 10/22/2020
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
2
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RSPF / RSPL Series
Stackpole Electronics, Inc.
Flameproof Power Resistor
Resistive Product Solutions
Waveform Transformation to Square Wave
1.
Discharge curve wave with time constant “t” → Square wave
2.
Damping oscillation wave with time constant of envelope “t” → Square wave
3.
Half-wave rectification wave → Square wave
4.
Triangular wave → Square wave
5.
Special wave → Square wave
Rev Date: 10/22/2020
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
3
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marketing@seielect.com
RSPF / RSPL Series
Stackpole Electronics, Inc.
Flameproof Power Resistor
Resistive Product Solutions
Recommended Solder Profile
This information is intended as a reference for solder profiles for Stackpole resistive components. These profiles should
be compatible with most soldering processes. These are only recommendations. Actual numbers will depend on board
density, geometry, packages used, etc., especially those cells labeled with “*”.
100% Matte Tin / RoHS Compliant Terminations
Soldering iron recommended temperatures: 330°C to 350°C with minimum duration.
Maximum number of reflow cycles: 3.
Wave Soldering
Description
Maximum
Recommended
Preheat Time
80 seconds
70 seconds
Temperature Diff.
140°C
120°C
Solder Temp.
260°C
250°C
Dwell Time at Max.
10 seconds
5 seconds
Ramp DN (°C/sec)
N/A
N/A
Temperature Diff. = Defference between final preheat stage and soldering stage.
Minimum
60 seconds
100°C
240°C
*
N/A
Convection IR Reflow
Description
Maximum
Recommended
Minimum
Ramp Up (°C/sec)
Dwell Time > 217°C
Solder Temp.
Dwell Time at Max.
Ramp DN (°C/sec)
3°C/sec
150 seconds
260°C
30 seconds
6°C/sec
2°C/sec
90 seconds
245°C
15 seconds
3°C/sec
*
60 seconds
*
10 seconds
*
Recommended Lead Free Resistor Reflow Profile
Rev Date: 10/22/2020
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
4
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marketing@seielect.com
RSPF / RSPL Series
Stackpole Electronics, Inc.
Flameproof Power Resistor
Resistive Product Solutions
Packaging Specifications
Type / Code
RSPF / RSPL
A
2.362 ± 0.079
60.00 ± 2.00
B
3.150 ± 0.079
80.00 ± 2.00
C
0.591 ± 0.039
15.00 ± 1.00
D
11.811 ± 0.197
300.00 ± 5.00
E
2.756 ± 0.079
70.00 ± 2.00
W
2.756 ± 0.079
70.00 ± 2.00
Unit
inches
mm
RoHS Compliance
Stackpole Electronics has joined the worldwide effort to reduce the amount of lead in electronic components and to meet the various
regulatory requirements now prevalent, such as the European Union’s directive regarding “Restrictions on Hazardous Substances”
(RoHS 3). As part of this ongoing program, we periodically update this document with the status regarding the availability of our
compliant components. All our standard part numbers are compliant to EU Directive 2011/65/EU of the European Parliament as
amended by Directive (EU) 2015/863/EU as regards the list of restricted substances.
RoHS Compliance Status
Standard
Product
Series
RSPF
RSPL
Description
Flameproof Power Leaded Resistor
Flameproof Power Leaded Resistor
Low Resistance
Axial
Standard
Series
RoHS
Compliant
YES
Axial
YES
Package /
Termination
Type
Lead-Free Termination
Composition
Lead-Free
Mfg. Effective Date
(Std Product Series)
99.3/0.7 Sn/Cu
Apr-05
Lead-Free
Effective Date
Code
(YY/WW)
05/14
99.3/0.7 Sn/Cu
Apr-05
05/14
“Conflict Metals” Commitment
We at Stackpole Electronics, Inc. are joined with our industry in opposing the use of metals mined in the “conflict region” of the Eastern
Democratic Republic of the Congo (DRC) in our products. Recognizing that the supply chain for metals used in the electronics industry
is very complex, we work closely with our own suppliers to verify to the extent possible that the materials and products we supply do
not contain metals sourced from this conflict region. As such, we are in compliance with the requirements of Dodd-Frank Act regarding
Conflict Minerals.
Compliance to “REACH”
We certify that all passive components supplied by Stackpole Electronics, Inc. are SVHC (Substances of Very High Concern) free and
compliant with the requirements of EU Directive 1907/2006/EC, “The Registration, Evaluation, Authorization and Restriction of
Chemicals”, otherwise referred to as REACH. Contact us for complete list of REACH Substance Candidate List.
Environmental Policy
It is the policy of Stackpole Electronics, Inc. (SEI) to protect the environment in all localities in which we operate. We continually strive
to improve our effect on the environment. We observe all applicable laws and regulations regarding the protection of our environment
and all requests related to the environment to which we have agreed. We are committed to the prevention of all forms of pollution.
Rev Date: 10/22/2020
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
5
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marketing@seielect.com
RSPF / RSPL Series
Stackpole Electronics, Inc.
Flameproof Power Resistor
Resistive Product Solutions
How to Order
1
2
3
4
5
6
7
8
9
10
11
12
R
S
P
F
1
2
J
B
1
0
R
0
Product Series
RSPF Flameproof
RSPL Low values
Power Rating
Size
W
14
0.25
12
0.5
1
1
2
2
3
3
Code
F
G
J
Tolerance
Tol
Value
1% E96, E24
2%
E24
5%
Code
T
B
A
Rev Date: 10/22/2020
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
6
Packaging
Size
Quantity
RSPF14, RSPL14
5000
RSPF12, RSPL12
Tape and Reel
RSPF1, RSPL1
2500
RSPF2, RSPL2
RSPF3, RSPL3
1000
RSPF14, RSPL14
2000
RSPF12, RSPL12
Bulk
RSPF1, RSPL1
1000
RSPF2, RSPL2
RSPF3, RSPL3
RSPF14, RSPL14
5000
RSPF12, RSPL12
2000
Ammo
RSPF1, RSPL1
RSPF2, RSPL2
1000
(*)
RSPF3, RSPL3
500
(*) Minimum order quantity of 1000 pieces
Description
Resistance Value
Four characters
with the multiplier
used as the
decimal holder.
2.2 ohm = 2R20
10 Kohm = 10K0
1 Mohm = 1M00
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