RNF / RNMF Series
General Purpose Metal Film Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Features:
•
•
•
•
•
•
•
•
•
•
Precision metal film
Superior electrical, TCR performances
Flame-retardant coatings are standard
Panasert available selected sizes (contact Stackpole)
RNMF (mini) an ideal choice where size constraints apply
RNF 5% replaces MP series
Lower or higher resistance values may be possible (contact Stackpole)
100% RoHS compliant and lead free without exemption
Halogen free
REACH compliant
Electrical Specifications
Power Maximum Maximum
TCR
Rating Working Overload
Type / Code Mil Ref
Voltage
(W)
Voltage (ppm/ºC)
@ 70ºC (Vrms)
(1)
(Vrms)
0.05%
± 25
RNF18
RN 50 0.125
200
400
100 - 100K
± 50
± 100
± 25
RNMF14
-
0.25
200
400
-
± 50
± 100
± 10
± 25
RNF14
RN 55
0.25
250
500
100 - 100K
± 50
± 100
± 25
RNMF12
RL 07
0.5
350
600
-
± 50
± 100
± 25
RNF12
RN 60
0.5
350
700
± 50
± 100
± 25
RNF1
RN 65
1
350
700
± 50
± 100
± 25
RNF2
-
2
350
800
± 50
± 100
(1) Lesser of
√ P*R
or maximum working voltage
Ohmic Range (Ω) and Tolerance
0.5%
1%
2%
5%
30.1 - 499K 49.9 - 499K
100 - 100K
-
100 - 100K
1 - 1M
10 - 1M
51.1 - 100K
1 - 10M
1 - 22M
30.1 - 499K 30.1 - 499K
-
100 - 100K
1 - 1M
10 - 1M
1 - 2.15M
1 - 2.2M
100 - 100K
-
-
-
10 - 1M
1 - 2.2M
1 - 5.11M
1.1M - 10M
1 - 10M
5.6 - 10M
1 - 10M
30.1 - 294K
49.9 - 1M
-
1 - 1M
30.1 - 1M
10 - 1M
1 - 10M
1 - 10M
49.9 - 499K
-
100 - 100K
1 - 4.99M
10 - 1M
1 - 10M
1 - 10M
-
-
-
-
10 - 470K
10 - 470K
10 - 1M
1 - 1M
1 - 1M
-
-
-
-
10 - 1M
10 - 1M
0.1%
0.25%
Mechanical Specifications
Type / Code
RNF18
RNMF14
RNF14
RNMF12
RNF12
A
Body Length
0.130 ± 0.012
3.30 ± 0.30
0.130 ± 0.012
3.30 ± 0.30
0.250 ± 0.026
6.35 ± 0.65
0.250 ± 0.026
6.35 ± 0.65
0.344 ± 0.030
8.75 ± 0.75
B
Body Diameter
0.071 ± 0.012
1.80 ± 0.30
0.070 ± 0.003
1.78 ± 0.08
0.093 ± 0.010
2.35 ± 0.25
0.093 ± 0.010
2.35 ± 0.25
0.108 ± 0.039
2.75 ± 1.00
C
Lead Length (Bulk)
1.102 ± 0.118
28.00 ± 3.00
1.102 ± 0.118
28.00 ± 3.00
1.102 ± 0.118
28.00 ± 3.00
1.102 ± 0.118
28.00 ± 3.00
1.102 ± 0.197
28.00 ± 5.00
D
Lead Diameter
0.018 ± 0.003
0.45 ± 0.07
0.017 ± 0.002
0.44 ± 0.05
0.022 ± 0.003
0.56 ± 0.08
0.022 ± 0.003
0.56 ± 0.08
0.026 ± 0.004
0.65 ± 0.10
Unit
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
Rev Date: 3/3/2022
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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RNF / RNMF Series
General Purpose Metal Film Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Mechanical Specifications (cont.)
Type / Code
RNF1 (< 10Ω)
RNF1 (≥ 10Ω)
RNF2
A
Body Length
0.453 ± 0.039
11.50 ± 1.00
0.433 ± 0.039
11.00 ± 1.00
0.591 ± 0.039
15.00 ± 1.00
B
Body Diameter
0.177 ± 0.020
4.50 ± 0.50
0.177 ± 0.020
4.50 ± 0.50
0.197 ± 0.020
5.00 ± 0.50
C
Lead Length (Bulk)
1.378 ± 0.079
35.00 ± 2.00
1.181 ± 0.118
30.00 ± 3.00
1.339 ± 0.157
34.00 ± 4.00
D
Lead Diameter
0.031 ± 0.001
0.78 ± 0.03
0.030 ± 0.002
0.75 ± 0.05
0.028 ± 0.004
0.70 ± 0.10
Unit
inches
mm
inches
mm
inches
mm
Performance Characteristics
Test
Insulation Resistance
Voltage Proof / DWV
Short Time Overload
JIS C5201-1, IEC60115-1, 4.13
Resistance to Solder Heat
JIS C5201-1, IEC60115-1, 4.18
Rapid Change of Temperature
JIS C5201-1, IEC60115-1, 4.19
Endurance at 70°C
JIS C5201-1, IEC60115-1, 4.25.1
Robustness of Terminations
JIS C5201-1, IEC60115-1, 4.16
Damp Heat (Steady state)
JIS C5201-1, IEC60115-1, 4.24
Operating temperature range is -55ºC to +155ºC
Test Method
JIS C5201-1, IEC60115-1, 4.6
Typical Results
≥ 1000M Ω
RNF16 / RNMF14: 300
RNF14 / RNMF12: 500
RNF12 / RNF1: 700
< ± 0.1%
< ± 0.1%
< ± 0.05%
< ± 0.15%
< ± 0.10%
< ± 0.10%
Test Limits
≥ 1000M Ω
≤ ± (0.5% + 0.05Ω)
No mechanical damage
≤ ± (0.25% + 0.05Ω)
≤ ± (0.3% + 0.05Ω)
≤ ± (0.35% + 0.05Ω)
≤± (1.0% + 0.05Ω)
≤ ± (0.2% + 0.05Ω)
≤ ± (1.5% + 0.05Ω)
Power Derating Curve:
Surface Temperature Rise:
Rev Date: 3/3/2022
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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RNF / RNMF Series
General Purpose Metal Film Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
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 = K
2
x P x T/t
Where: Vp:
lp:
Pp:
P:
R:
T:
t:
K:
[Vr:
Pulse limiting voltage (V)
Pulse limiting current (A)
Pulse limiting wattage (W)
Power rating (W)
Nominal resistance (ohm)
Repetitive period (sec)
Pulse duration (sec)
RNF / RNMF Coefficient: 0.7
Rated Voltage (V), Ir: Rated Current (A)]
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
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: 3/3/2022
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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RNF / RNMF Series
General Purpose Metal Film Resistor
Stackpole Electronics, Inc.
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: 3/3/2022
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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RNF / RNMF Series
General Purpose Metal Film Resistor
Stackpole Electronics, Inc.
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
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: 3/3/2022
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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