RSF / RSMF Series
General Purpose Metal Oxide Resistor
Features:
•
•
•
•
•
•
•
•
•
Lower-cost alternative to carbon comps and wirewounds
Coating meets UL 94V-0
Meets solvent test of Mil Standard 202, Method 215
Cut and formed product is available on select sizes - contact Stackpole
Higher or lower resistance values may be possible - contact Stackpole
Flameproof
100% RoHS compliant and lead free without exemption
Halogen free
REACH compliant
Stackpole Electronics, Inc.
Resistive Product Solutions
Electrical Specifications
Maximum
Maximum
Dielectric
Type / Code
Working
Overload
Withstanding
(1)
Voltage (V)
Voltage (V)
Voltage (V)
RSF12
0.5
250
400
350
RSF1
1
350
600
600
RSF2
2
350
600
600
RSF3
3
800
1000
750
RSF5
5
1000
1000
750
RSMF12
0.5
250
400
350
RSMF1
1
350
600
500
RSMF2
2
350
600
500
RSMF3
3
500
800
600
RSMF5
5
1000
1000
750
(1) Lesser of
√ P*R
or maximum working voltage
(2) Contact Stackpole for resistance values outside the specified range
Power Rating
(W) @ 70ºC
TCR (ppm/ºC)
± 200
± 200
± 200
± 200
± 200
± 200
± 200
± 200
± 200
± 200
Ohmic Range
(2)
(Ω)
and Tolerance
5%
0.1 - 510K
0.1 - 510K
0.1 - 510K
0.1 - 510K
0.1 - 510K
0.1 - 470K
0.1 - 470K
0.1 - 470K
0.1 - 470K
0.1 - 510K
1%
2%
0.1 - 150K
0.1 - 75K
0.1 - 100K
0.1 - 120K
0.1 - 470K
0.1 - 510K
0.1 - 470K
0.1 - 510K
0.1 - 46.4K
0.1 - 47K
0.1 - 75K
0.1 - 100K
0.1 - 118K
0.1 - 120K
0.1 - 470K
0.1 - 510K
Mechanical Specifications
Type / Code
RSF12
RSF1
RSF2
RSF3
RSF5
RSMF12
RSMF1
RSMF2
RSMF3
RSMF5
A
Body Length
0.35 ± 0.04
9.00 ± 1.00
0.43 ± 0.06
11.00 ± 1.50
0.59 ± 0.06
15.00 ± 1.50
0.69 ± 0.04
17.50 ± 1.00
0.96 ± 0.04
24.50 ± 1.00
0.24 ± 0.03
6.00 ± 0.80
0.35 ± 0.04
9.00 ± 1.00
0.43 ± 0.06
11.00 ± 1.50
0.59 ± 0.06
15.00 ± 1.50
0.69 ± 0.04
17.50 ± 1.00
B
Body Diameter
0.13 ± 0.03
3.20 ± 0.80
0.18 ± 0.04
4.50 ± 1.00
0.22 ± 0.04
5.50 ± 1.00
0.24 ± 0.02
6.00 ± 0.50
0.31 ± 0.02
8.00 ± 0.50
0.09 ± 0.01
2.30 ± 0.30
0.13 ± 0.03
3.20 ± 0.80
0.18 ± 0.04
4.50 ± 1.00
0.22 ± 0.04
5.50 ± 1.00
0.24 ± 0.02
6.00 ± 0.50
C
Lead Length (Bulk)
1.10 ± 0.12
28.00 ± 3.00
1.10 ± 0.20
28.00 ± 5.00
1.18 ± 0.20
30.00 ± 5.00
1.38 ± 0.12
35.00 ± 3.00
1.38 ± 0.12
35.00 ± 3.00
1.10 ± 0.12
28.00 ± 3.00
1.10 ± 0.12
28.00 ± 3.00
1.18 ± 0.20
30.00 ± 5.00
1.18 ± 0.20
30.00 ± 5.00
1.38 ± 0.08
35.00 ± 2.00
D
Lead Diameter
0.03 ± 0.003
0.70 ± 0.08
0.03 ± 0.002
0.80 ± 0.05
0.03 ± 0.004
0.75 ± 0.10
0.03 ± 0.002
0.80 ± 0.05
0.03 ± 0.002
0.80 ± 0.05
0.02 ± 0.003
0.55 ± 0.07
0.03 ± 0.003
0.70 ± 0.08
0.03 ± 0.002
0.80 ± 0.05
0.03 ± 0.004
0.75 ± 0.10
0.03 ± 0.002
0.80 ± 0.05
Lead-Tape
Specification
0.250
6.35
0.250
6.35
0.250
6.35
0.250
6.35
0.250
6.35
0.250
6.35
0.250
6.35
0.250
6.35
0.250
6.35
0.250
6.35
Unit
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
Rev Date: 7/27/2021
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
1
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RSF / RSMF Series
General Purpose Metal Oxide Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Performance Characteristics
Test
Test Method
Test Specification
Typical Results
Insulation Resistance
JIS C5201-1, IEC60115-1, 4.6
≥
1G
Ω
≥ 1G Ω
Voltage Proof
JIS C5201-1, IEC60115-1, 4.7
≤
± (0.5% + 0.05
Ω)
No mechanical damage
<
±
0.25%
Short Time Overload
JIS C5201-1, IEC60115-1, 4.13
≤
± (0.75% + 0.05
Ω)
<
±
0.1%
Resistance to Solder Heat
JIS C5201-1, IEC60115-1, 4.18
≤ ± (2.0% + 0.05 Ω)
< ± 1.0%
Endurance at 70°C
JIS C5201-1, IEC60115-1, 4.25.1
≤±
(5.0% + 0.05
Ω)
< ± 2.0%
Robustness of Terminations
JIS C5201-1, IEC60115-1, 4.16
≤ ± (1.0% + 0.05 Ω)
< ± 0.10%
≤±
(5% + 0.05
Ω)
Damp Heat (Steady state)
JIS C5201-1, IEC60115-1, 4.24
< ± 1.5%
≤±
(1% + 0.05
Ω)
Rapid Change of Temperature
JIS C5201-1, IEC60115-1, 4.19
< ± 0.2%
Resistance to Solvents
JIS C5201-1, IEC60115-1, 4.29
No damage to component or removal of marking
Pass
≤±
(2% + 0.05
Ω)
Intermittent Overload
JIS C5201-1, IEC60115-1, 4.39
< ± 0.3%
Accidental Overload (Flame resistance)
JIS C5201-1, IEC60115-1, 4.26
No flaming of gauze
Pass
Operating temperature range is -55ºC to +200ºC (RSF12, RSMF12, RSMF1)
-55ºC to +235ºC (all others)
Power Derating Curve:
Surface Temperature Rise:
Rev Date: 7/27/2021
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
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RSF / RSMF Series
General Purpose Metal Oxide Resistor
Repetitive Pulse Information:
Stackpole Electronics, Inc.
Resistive Product Solutions
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 = K
2
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: 0.8
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: 7/27/2021
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
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RSF / RSMF Series
General Purpose Metal Oxide Resistor
Waveform Transformation to Square Wave
1.
Discharge curve wave with time constant “t”
→
Square wave
Stackpole Electronics, Inc.
Resistive Product Solutions
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: 7/27/2021
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
RSF / RSMF Series
General Purpose Metal Oxide Resistor
Recommended Solder Profile
Stackpole Electronics, Inc.
Resistive Product Solutions
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
Minimum
60 seconds
100°C
240°C
*
N/A
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.
Convection IR Reflow
Description
Ramp Up (°C/sec)
Dwell Time > 217°C
Solder Temp.
Dwell Time at Max.
Ramp DN (°C/sec)
Maximum
3°C/sec
150 seconds
260°C
30 seconds
6°C/sec
Recommended
2°C/sec
90 seconds
245°C
15 seconds
3°C/sec
Minimum
*
60 seconds
*
10 seconds
*
Recommended Lead Free Resistor Reflow Profile
Rev Date: 7/27/2021
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
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