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Specifications
Type:
Metal Film Resistor
Resistance:
24.9kΩ
Power(Watts):
500mW
Temperature Coefficient:
±50ppm/℃
Tolerance:
±1%
Mfr. Part #:
RN1/2WS24.9KΩFT/BA1
Package:
Through Hole,D2.4xL6.5mm
Key Attributes
Model Number:
RN1/2WS24.9KΩFT/BA1
Product Description
Product Overview
SHI MENG ELECTRONIC CO.,LTD. Precision Metal Film Fixed Resistors offer high accuracy, stability, and reliability with low noise and voltage coefficient. They are designed for demanding applications requiring tight tolerances and low temperature coefficients, meeting the latest environmental regulations including RoHS and REACH.
Product Attributes
- Brand: SHI MENG ELECTRONIC CO.,LTD.
- Certifications: RoHS, REACH
- Material: Nickel-Chromium alloy conductive layer
- Coating: Epoxy resin (standard blue, optional gray or brick red for non-flammable)
Technical Specifications
| Type | Rated Power | Tolerance | Resistance Range | Temperature Coefficient (T.C.R.) | Max Continuous Working Voltage | Max Overload Voltage | Insulation Resistance Voltage | Operating Temp Range | Size (L1 x D1 x H3) | Lead Diameter (d0.06) |
| 1/8W | 1/8W | 0.1% to 1% | 0 & 0.1~10M | 15PPM, 25PPM, 50PPM, 100PPM | 200V | 400V | 300V | -55 ~ +125 | 3.5 x 1.7 x 27 | 0.45 |
| 1/6W | 1/6W | 0.1% to 1% | 0 & 0.1~10M | 15PPM, 25PPM, 50PPM, 100PPM | 250V | 500V | 350V | 3.5 x 1.7 x 27 | 0.45 | |
| 1/4WS | 1/4W | 0.1% to 1% | 0 & 0.1~10M | 15PPM, 25PPM, 50PPM, 100PPM | 350V | 700V | 500V | 6.5 x 2.4 x 27 | 0.50 | |
| 1/2WSS | 1/2W | 0.1% to 1% | 0 & 0.1~10M | 15PPM, 25PPM, 50PPM, 100PPM | 500V | 1000V | 500V | 9.2 x 3.3 x 26 | 0.60 | |
| 1/4W | 1/4W | 0.1% to 1% | 0 & 0.1~10M | 15PPM, 25PPM, 50PPM, 100PPM | 500V | 1000V | 500V | 6.5 x 2.4 x 27 | 0.50 | |
| 1/2WS | 1/2W | 0.1% to 1% | 0 & 0.1~10M | 15PPM, 25PPM, 50PPM, 100PPM | 500V | 1000V | 500V | 9.2 x 3.3 x 26 | 0.60 | |
| 1WSS | 1W | 0.1% to 1% | 0 & 0.1~10M | 15PPM, 25PPM, 50PPM, 100PPM | 500V | 1000V | 500V | 11 x 4.5 x 28 | 0.70 | |
| 1/2W | 1/2W | 0.1% to 1% | 0.1~2M | 15PPM, 25PPM, 50PPM, 100PPM | 500V | 1000V | 500V | 9.2 x 3.3 x 26 | 0.60 | |
| 1WS | 1W | 0.1% to 1% | 0.1~2M | 15PPM, 25PPM, 50PPM, 100PPM | 500V | 1000V | 500V | 11 x 4.5 x 28 | 0.70 | |
| 2WSS | 2W | 0.1% to 1% | 0.1~2M | 15PPM, 25PPM, 50PPM, 100PPM | 500V | 1000V | 500V | 15 x 5.0 x 32 | 0.78 | |
| 1W | 1W | 0.1% to 1% | 0.1~2M | 15PPM, 25PPM, 50PPM, 100PPM | 500V | 1000V | 500V | -55 ~ +125 | 11 x 4.5 x 28 | 0.70 |
| 2WS | 2W | 0.1% to 1% | 0.1~2M | 15PPM, 25PPM, 50PPM, 100PPM | 500V | 1000V | 500V | -55 ~ +125 | 15 x 5.0 x 32 | 0.78 |
| 3WS | 3W | 0.1% to 1% | 0.1~2M | 15PPM, 25PPM, 50PPM, 100PPM | 500V | 1000V | 700V | -55 ~ +125 | 18 x 6.0 x 33 | 0.78 |
| 3W | 3W | 0.1% to 1% | 0.1~2M | 15PPM, 25PPM, 50PPM, 100PPM | 500V | 1000V | 700V | -55 ~ +125 | 18 x 6.0 x 33 | 0.78 |
| 5WS | 5W | 0.1% to 1% | 0.1~2M | 15PPM, 25PPM, 50PPM, 100PPM | 500V | 1000V | 700V | -55 ~ +125 | 25 x 8.0 x 38 | 0.78 |
| 5W | 5W | 0.1% to 1% | 0.1~2M | 15PPM, 25PPM, 50PPM, 100PPM | 500V | 1000V | 700V | -55 ~ +125 | 25 x 8.0 x 38 | 0.78 |
Performance Characteristics
| Characteristic | Specification | Test Method |
| Temperature Coefficient (T.C.R.) | Standard: 100PPM/ for 1. For <1, refer to reference values. Special: 50PPM/, 25PPM/, 15PPM/ available for 10 upon request. | Calculated using R2-R1 *10^6(PPM)/ / [R1*(T2-T1)] where T1=Room Temp, T2=Room Temp+100. |
| Load Life | Resistance change (2%R+0.05) MAX. No mechanical damage. | 1000 hours at 702, with rated voltage or max continuous working voltage (whichever is less), duty cycle 1.5hrs ON / 0.5hrs OFF. |
| Short Time Overload | Resistance change (0.5%R+0.05). | 2.5 times the rated voltage or maximum overload voltage (whichever is less), for 5 seconds. |
| Insulation Resistance | 1000M or more. | Measured with the resistor placed in a V-block. |
| Electric Withstanding Voltage | Resistance change (0.5%R+0.05). No flashover, mechanical damage, arcing, or insulation breakdown. | 60 seconds at specified voltage from the characteristics table, with leads clamped in a metallic V-block. |
| Temperature Cycling | Resistance change (0.5%R+0.05) MAX. No mechanical damage. | 5 cycles: -253 for 30 min, Room temp for 10-15 min, 852 for 30 min, Room temp for 10-15 min. |
| Resistance to Soldering Heat | Resistance change (0.5%R+0.05) MAX. No mechanical damage. | Dipped in solder at 35010 for 30.5 sec, or 2605 for 101 sec. Immersion depth: 2+0/-0.5mm from the body. |
| Solder Ability | 95% coverage minimum on the lead wire. | Solder pot temperature: 2605. Dwell time in solder: 30.5 sec. |
| Join Intensity | No terminal wire loosening or breakage. | Clamped at the solder end of the lead wire and flipped outwards 90 degrees, reciprocated twice. |
2410121258_TyoHM-RN1-2WS24-9KRFT-BA1_C385478.pdf
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