Metal Film Fixed Resistor

This specification covers Metal Film Fixed Resistors manufactured by CHIAN CHIA ELECTRONIC(HU BEI)CO.,LTD, compliant with RoHS environmental substance requirements. These resistors are designed for various applications and are distinguished by their type, rated power, nominal resistance value, tolerance, and form factor.

Product Attributes

Brand: CHIAN CHIA ELECTRONIC
Origin: Hubei Province, China
Material: Metal film resistor element, High alumina ceramic core, Tinned iron cap, Epoxy resin finishing paint
Body Color: Sky blue (for both Normal and Small sizes)
Certifications: RoHS compliant

Technical Specifications

Type	Rated Power	Nominal Resistance Range ()	Tolerance	Max. Working Voltage (V)	Max. Overload Voltage (V)	Dielectric Withstanding Voltage (V)
MF1/8W (Normal)	0.125W	1 ~1M	J (5%), G (2%), F (1%), D (0.5%)	150	300	300
MF1/4W (Normal)	0.25W	1 ~10M	J (5%), G (2%), F (1%), D (0.5%)	250	500	350
MF1/2W (Normal)	0.5W	1 ~10M	J (5%), G (2%), F (1%), D (0.5%)	300	700	400
MF1W (Normal)	1W	1 ~10M	J (5%), G (2%), F (1%), D (0.5%)	350	800	450
MF2W (Normal)	2W	1 ~10M	J (5%), G (2%), F (1%), D (0.5%)	500	800	450
MF3W (Normal)	3W	1 ~10M	J (5%), G (2%), F (1%), D (0.5%)	500	800	500
MF5W (Normal)	5W	1 ~10M	J (5%), G (2%), F (1%), D (0.5%)	500	1000	500
MF1/4WS (Small)	0.25W	1 ~10M	J (5%), G (2%), F (1%), D (0.5%)	150	300	300
MF1/2WS (Small)	0.5W	1 ~10M	J (5%), G (2%), F (1%), D (0.5%)	250	700	350
MF1WS (Small)	1W	1 ~10M	J (5%), G (2%), F (1%), D (0.5%)	300	800	400
MF2WS (Small)	2W	1 ~10M	J (5%), G (2%), F (1%), D (0.5%)	350	800	450
MF3WS (Small)	3W	1 ~10M	J (5%), G (2%), F (1%), D (0.5%)	500	1000	450
MF5WS (Small)	5W	1 ~10M	J (5%), G (2%), F (1%), D (0.5%)	500	1000	500

Key Characteristics

Item	Performance Specification	Test Method (Conform to JIS C 5202)
Temperature Coefficient	Within 100PPM/	5.2
Short Time Overload	Within (0.5%+0.05). No evidence of mechanical damage.	5.5 (Rated voltage2.5 times, 5s)
Insulation Resistance	10⁴M or more.	5.6 (DC 500V for 60s)
Dielectric Withstanding Voltage	No evidence of flashover, arcing or insulation breakdown.	5.7 (Individual specified AC voltage for 60s)
Terminal Strength	No evidence of mechanical damage.	6.1 (Tensile and Torsion strength)
Resistance to Soldering Heat	Within (0.5 %+0.05 ). No evidence of mechanical damage.	6.4 (35010, 31.0s)
Solderability	Covered with new solder by 95% at least.	6.5 (Solder temp: 2555, Dipping time: 31.0s)
Resistance to Solvent	No deterioration of protective coating and markings.	6.9 (Alcohol solvent, ultrasonic bath for 3 minutes)
Temperature Cycle	Within (1%+0.05 ). No evidence of mechanical damage.	7.4 (5 cycles: -55/30min to +80/30min)
Load Life in Humidity	Within (2%+0.05 ).	7.9 (402, 90-95%RH, 1000h, Rated voltage)
Load Life	Within (2%+0.05 ).	7.10 (703, 1000h, Rated voltage)

Indication (Color Code)

Color	1st Figure	2nd Figure	3rd Figure	Multiplier	Tolerance
Black	0	0	0	10⁰
Brown	1	1	1	10¹	1% (F)
Red	2	2	2	10²	2% (G)
Orange	3	3	3	10³
Yellow	4	4	4	10⁴
Green	5	5	5	10⁵
Blue	6	6	6	10⁶
Violet	7	7	7	10⁷	0.1% (B)
Gray	8	8	8	10⁸	0.05% (A)
White	9	9	9	10⁹
Gold				10^-1	5% (J)
Silver				10^-2
Plain					0.1%, 0.25%, 0.5%, 1% (5-Band code)

2410121228_CCO-Chian-Chia-Elec-MF2WS-100R-1--T_C119570.pdf

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