High Accuracy Fixed Resistor TyoHM RN1/2WS24.9KΩFT/BA1 with Nickel Chromium Alloy Conductive Layer

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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	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.