RSF / RSMF Series Stackpole Electronics, Inc. General Purpose Metal Oxide Resistor Resistive Product Solutions 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 for details • Higher or lower resistance values may be possible - contact Stackpole • Flameproof • RoHS compliant, lead free and halogen free Electrical Specifications Maximum Maximum Dielectric Power Rating Ohmic Range (Ω) and Tolerance Type / Code Working Overload Withstanding T C R (ppm/ºC) (W) @ 70 ºC Voltage (V)(1) Voltage (V) Voltage (V) 1% 2% 5% RSF12 0.5 250 400 350 ± 200 0.1 - 150 K 0.1 - 75 K 0.1 - 1 M RSF1 1 350 600 600 ± 200 0.1 - 100 K 0.1 - 1 M RSF2 2 350 600 600 ± 200 0.1 - 120 K 0.1 - 1 M RSF3 3 800 1000 750 ± 200 0.1 - 470 K 0.1 - 560 K 0.1 - 1 M RSF5 5 1000 1000 750 ± 200 0.1 - 470 K 0.1 - 560 K 0.1 - 1 M RSMF12 0.5 250 400 350 ± 200 0.1 - 46.4 K 0.1 - 47 K 0.1 - 470 K RSMF1 1 350 600 500 ± 200 0.1 - 75 K 0.1 - 470 K RSMF2 2 350 600 500 ± 200 0.1 - 100 K 0.1 - 470 K RSMF3 3 500 800 600 ± 200 0.1 - 118 K 0.1 - 120 K 0.1 - 470 K RSMF5 5 1000 1000 750 ± 200 0.1 - 470 K 0.1 - 560 K 0.1 - 1 M (1) Lesser of √P*R or maximum working voltage Mechanical Specifications A B C D Lead-Tape Type / Code Unit Body Length Body Diameter Lead Length (Bulk) Lead Diameter Specification 0.35 ± 0.04 0.13 ± 0.03 1.10 ± 0.12 0.03 ± 0.003 0.250 inches RSF12 9.00 ± 1.00 3.20 ± 0.80 28.00 ± 3.00 0.70 ± 0.08 6.35 mm 0.43 ± 0.06 0.18 ± 0.04 1.10 ± 0.20 0.03 ± 0.002 0.250 inches RSF1 11.00 ± 1.50 4.50 ± 1.00 28.00 ± 5.00 0.80 ± 0.05 6.35 mm 0.59 ± 0.06 0.22 ± 0.04 1.18 ± 0.20 0.03 ± 0.004 0.250 inches RSF2 15.00 ± 1.50 5.50 ± 1.00 30.00 ± 5.00 0.75 ± 0.10 6.35 mm 0.69 ± 0.04 0.24 ± 0.02 1.38 ± 0.12 0.03 ± 0.002 0.250 inches RSF3 17.50 ± 1.00 6.00 ± 0.50 35.00 ± 3.00 0.80 ± 0.05 6.35 mm 0.96 ± 0.04 0.31 ± 0.02 1.38 ± 0.12 0.03 ± 0.002 0.250 inches RSF5 24.50 ± 1.00 8.00 ± 0.50 35.00 ± 3.00 0.80 ± 0.05 6.35 mm 0.24 ± 0.03 0.09 ± 0.01 1.10 ± 0.12 0.02 ± 0.003 0.250 inches RSMF12 6.00 ± 0.80 2.30 ± 0.30 28.00 ± 3.00 0.55 ± 0.07 6.35 mm 0.35 ± 0.04 0.13 ± 0.03 1.10 ± 0.12 0.03 ± 0.003 0.250 inches RSMF1 9.00 ± 1.00 3.20 ± 0.80 28.00 ± 3.00 0.70 ± 0.08 6.35 mm 0.43 ± 0.06 0.18 ± 0.04 1.18 ± 0.20 0.03 ± 0.002 0.250 inches RSMF2 11.00 ± 1.50 4.50 ± 1.00 30.00 ± 5.00 0.80 ± 0.05 6.35 mm RSMF3 0.59 ± 0.06 0.22 ± 0.04 1.18 ± 0.20 0.03 ± 0.004 0.250 inches 15.00 ± 1.50 5.50 ± 1.00 30.00 ± 5.00 0.75 ± 0.10 6.35 mm 0.69 ± 0.04 0.24 ± 0.02 1.38 ± 0.08 0.03 ± 0.002 0.250 inches RSMF5 17.50 ± 1. 00 6.00 ± 0.50 35.00 ± 2.00 0.80 ± 0.05 6.35 mm Rev Date: 10/22/2020 1 www.seielect.com This specification may be changed at any time without prior notice marketing@seielect.com Please confirm technical specifications before you order and/or use.

RSF / RSMF Series Stackpole Electronics, Inc. General Purpose Metal Oxide Resistor Resistive Product Solutions Performance Characteristics Test Test Method Test Specification Typical Results Insulation Resistance JIS C5201-1, IEC60115-1, 4.6 ≥ 1 G Ω ≥ 1 G 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% Damp Heat (Steady state) JIS C5201-1, IEC60115-1, 4.24 ≤± (5% + 0.05 Ω) < ± 1.5% Rapid Change of Temperature JIS C5201-1, IEC60115-1, 4.19 ≤± (1% + 0.05 Ω) < ± 0.2% Resistance to Solvents JIS C5201-1, IEC60115-1, 4.29 No damage to component or removal of marking Pass Intermittent Overload JIS C5201-1, IEC60115-1, 4.39 ≤± (2% + 0.05 Ω) < ± 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: -55 ºC 70 ºC 100 %) 80 er ( RSF1,RSF2, RSF3, RSF5 w RSMF2, RSMF3, RSMF5 Po 60 ated RSMFR1S2F,1R2SMF1 R 40 nt ce er 20 P 0 235 -60 0 20 40 60 80 100 120 140 160 180 200 220 240 Ambient Temperature (ºC) Surface Temperature Rise 120 200 RSF2 C) 180 RSMF3 p. Rise (°C) 10800 RSF1 mp. Rise (° 111642000 RRSSMMFF21 m 60 e 100 Surface Te 4200 RSF12 Surface T 864000 RSMF12 20 0 0 0 20 40 60 80 100 Power Rating (%) 0 20 40 60 80 100 Power Rating (%) 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 Rev Date: 10/22/2020 2 www.seielect.com This specification may be changed at any time without prior notice marketing@seielect.com Please confirm technical specifications before you order and/or use.

RSF / RSMF Series Stackpole Electronics, Inc. General Purpose Metal Oxide Resistor Resistive Product Solutions Where: Vp: Pulse limiting voltage (V) lp: Pulse limiting current (A) Pp: Pulse limiting wattage (W) P: Power rating (W) R: Nominal resistance (ohm) T: Repetitive period (sec) t: Pulse duration (sec) K: Coefficient: 0.8 [Vr: Rated Voltage (V), Ir: Rated Current (A)] Note 1: If T > 10 → T = 10 (sec), T / t > 1000 → T / t = 1000 Note 2: If T > 10 and T / t > 1000, “Pulse Limiting power (Single pulse) is applied Note 3: If Vp < Vr (lp < lr or Pp < P), Vr (lr, P) is Vp (lp, Pp) Note 4: 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” Note 5: Assure sufficient margin for use period and conditions for “pulse limiting voltage” Note 6: If the pulse waveform is not square wave, judge after transform the waveform into square wave according to the “Waveform Transformation to Square Wave”. 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 Rev Date: 10/22/2020 3 www.seielect.com This specification may be changed at any time without prior notice marketing@seielect.com Please confirm technical specifications before you order and/or use.

RSF / RSMF Series Stackpole Electronics, Inc. General Purpose Metal Oxide Resistor Resistive Product Solutions 4. Triangular wave → Square wave 5. Special wave → Square wave 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 Preheat Time 80 seconds 70 seconds 60 seconds Temperature Diff. 140°C 120°C 100°C Solder Temp. 260°C 250°C 240°C Dwell Time at Max. 10 seconds 5 seconds * Ramp DN (°C/sec) N/A N/A N/A Temperature Diff. = Defference between final preheat stage and soldering stage. Convection IR Reflow Description Maximum Recommended Minimum Ramp Up (°C/sec) 3°C/sec 2°C/sec * Dwell Time > 217°C 150 seconds 90 seconds 60 seconds Solder Temp. 260°C 245°C * Dwell Time at Max. 30 seconds 15 seconds 10 seconds Ramp DN (°C/sec) 6°C/sec 3°C/sec * Rev Date: 10/22/2020 4 www.seielect.com This specification may be changed at any time without prior notice marketing@seielect.com Please confirm technical specifications before you order and/or use.

RSF / RSMF Series Stackpole Electronics, Inc. General Purpose Metal Oxide Resistor Resistive Product Solutions Recommended Lead Free Resistor Reflow Profile Packaging Specifications Reeled in accordance with EIA-296-F Type / Code A max.(1) B max C D(2) Tape Unit 2.736 13.504 0.197 ± 0.020 2.063 ± 0.079 0.250 inches RSF12 69.50 343.00 5.00 ± 0.50 52.40 ± 2.00 6.35 mm 2.815 13.504 0.197 ± 0.020 2.063 ± 0.079 0.250 inches RSF1 71.50 343.00 5.00 ± 0.50 52.40 ± 2.00 6.35 mm 3.524 13.504 0.394 ± 0.020 2.500 ± 0.079 0.250 inches RSF2 89.50 343.00 10.00 ± 0.50 63.50 ± 2.00 6.35 mm 3.740 12.008 0.394 ± 0.020 2.874 ± 0.079 0.250 inches RSF3 95.00 305.00 10.00 ± 0.50 73.00 ± 2.00 6.35 mm 4.331 12.008 0.394 ± 0.020 3.465 ± 0.079 0.250 inches RSF5 110.00 305.00 10.00 ± 0.50 88.00 ± 2.00 6.35 mm Type / Code A max.(1) B max C D(2) Tape Unit 2.618 13.504 0.197 ± 0.020 2.063 ± 0.079 0.250 inches RSMF12 66.50 343.00 5.00 ± 0.50 52.40 ± 2.00 6.35 mm 2.736 13.504 0.197 ± 0.020 2.063 ± 0.079 0.250 inches RSMF1 69.50 343.00 5.00 ± 0.50 52.40 ± 2.00 6.35 mm 2.815 13.504 0.197 ± 0.020 2.063 ± 0.079 0.250 inches RSMF2 71.50 343.00 5.00 ± 0.50 52.40 ± 2.00 6.35 mm 3.524 13.504 0.394 ± 0.020 2.500 ± 0.079 0.250 inches RSMF3 89.50 343.00 10.00 ± 0.50 63.50 ± 2.00 6.35 mm 3.740 12.008 0.394 ± 0.020 2.874 ± 0.079 0.250 inches RSMF5 95.00 305.00 10.00 ± 0.50 73.00 ± 2.00 6.35 mm Rev Date: 10/22/2020 5 www.seielect.com This specification may be changed at any time without prior notice marketing@seielect.com Please confirm technical specifications before you order and/or use.

RSF / RSMF Series Stackpole Electronics, Inc. General Purpose Metal Oxide Resistor Resistive Product Solutions Dimension "E": This is a non-critical dimension that does not have a tolerance in the standard. Range of diameters is from 0.547 inches (13.90 mm) to 1.500 inches (38.10 mm). (1) Reference value only. The "A" dimension shall be governed by the overall length of the taped component. The distance between flanges shall be 0.059 inches (1.50 mm) to 0.315 (8.00 mm) greater than the overall component. (2) The given dimension "D" expresses the standard width spacing. A 26 mm narrow spacing is available as option "N" packaging code. Packaging Specifications – Pana-Sert Symbol Description PRSM12 PRSF1 / PRSM2 ØD Body diameter 0.157max. 0.217max. 4.00max. 5.50max. 0.394max. 0.492max. A Body length 10.00max. 12.50max. 0.571max. 0.709max. A0 Mounting height 14.50max. 18.00max. 0.028± 0.004 0.028± 0.004 Ød Lead diameter 0.70± 0.10 0.70± 0.10 0.500± 0.039 P Component pitch 12.70±1.00 0.500± 0.012 P0 Feed hole pitch 12.70±0.30 0.152± 0.020 P1 Feed hole center to lead 3.85±0.50 0.250± 0.016 P2 Feed hole center to body 6.35±0.40 0.200+0.24 / -0.008 F Lead-lead distance 5.08+0.60 / -0.20 Alpha Performing angle 45° max 0.000± 0.079 Δh Component alignment 0.00±2.00 0.000± 0.118 Δg Component alignment 0.00±3.00 0.709+0.039 / -0.031 W Tape width 18.00+1.00 / -0.80 0.492min. W0 Hold down tape width 12.50min. 0.354± 0.020 W1 Hole position 9.00±0.50 0.079+0 / -0.059 W2 Hold down tape position 2.00+0 / -1.50 Rev Date: 10/22/2020 6 www.seielect.com This specification may be changed at any time without prior notice marketing@seielect.com Please confirm technical specifications before you order and/or use.

RSF / RSMF Series Stackpole Electronics, Inc. General Purpose Metal Oxide Resistor Resistive Product Solutions Packaging Specifications – Pana-Sert (cont.) Symbol Description PRSM12 PRSF1 / PRSM2 0.748± 0.039 H Distance to tape center 19.00±1.00 H0 Lead wire clinch height 0.630± 0.020 16.00±0.50 0.039max. I Lead wire portrait 1.00max. 0.157± 0.008 ØD0 Feed hole diamenter 4.00±0.20 0.028max. i Total tape thickness 0.70max. 0.433max. L Length of shipped lead 11.00max. Pulse Limiting Power (one pulse) / RSMF Series ≤ 5Ω 10,000 1,300 1,300 1,300 1,000 560 560 560 560 Watts) 100 424105 424105 424105 129700 215305 110 wer ( 95 8442 3676 48 RSMF3 e Po 10 18 1362 RRSSMMFF21 uls 8 RSMF12 P 1 1μ 10μ 100μ 1m 10m 100m 1 Pulse Width (sec.) Pulse Limiting Power (one pulse) / RSMF Series ≥ 5Ω 10,000 Watts) 1,000 117,,00500000 117,,05000000 117,,00500000 800 ower ( 100 400 400 400 431205000 311081005 130 P 76 se 56 43 48 RSMF3 Pul 21 32 RSMF2 10 16 RSMF1 8 RSMF12 1 1μ 10μ 100μ 1m 10m 100m 1 Pulse Width (sec.) Rev Date: 10/22/2020 7 www.seielect.com This specification may be changed at any time without prior notice marketing@seielect.com Please confirm technical specifications before you order and/or use.

RSF / RSMF Series Stackpole Electronics, Inc. General Purpose Metal Oxide Resistor Resistive Product Solutions 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 Lead-Free Standard Package / Lead-Free Series Lead-Free Termination Effective Date Product Description Termination Mfg. Effective Date RoHS Composition Code Series Type (Std Product Series) Compliant (YY/WW) General Purpose Metal Oxide 99.3/0.7 Sn/Cu A p r - 0 5 ( Japan) 0 5 / 1 4 RSF Axial YES Leaded Resistor 100% Matte Sn Jan-04 (Taiwan, China) 04/01 99.3/0.7 Sn/Cu A p r - 0 5 ( Japan) 0 5 / 1 4 RSMF Mini-Metal Oxide Leaded Resistor Axial YES 100% Matte Sn Jan-04 (Taiwan, China) 04/01 “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. How to Order 1 2 3 4 5 6 7 8 9 10 11 R S F 1 2 J T R 4 7 0 Product Series Power Rating Tolerance Packaging Resistance Value RSF Metal Oxide Size W Code Tol Value Code Description Size Quantity Four characters with RSMF Mini 12 0.5 F 1% E96 RSMF12, PRSM12 5000 the multiplier used as PRSF(1) Panasert 1 1 G 2% E24 RSF12, RSF1 2 5 0 0 the decimal holder. PRSM(1) Panasert Mini 2 2 J 5% RSMF1, RSMF2 T Tape and Reel 3 3 PRSF1, PRSM2 2000 0.22 ohm = R220 5 5 RSF2, RSMF3 1000 33.2 ohm = 33R2 RSF3, RSMF5 1000 10.2 Kohm = 10K2 T Tape and Reel RSF5 500 1 Mohm = 1M00 RSMF12 5000 RSF12; RSMF1, PRSM12 2000 A Ammo RSF1, RSF2, RSMF2, 1000 PRSF1, PRSM2, RSMF3 RSF3, RSF5, RSMF5 500 B Bulk All Sizes 1000 Rev Date: 10/22/2020 8 www.seielect.com This specification may be changed at any time without prior notice marketing@seielect.com Please confirm technical specifications before you order and/or use.