HOME   INTRO   HISTORY   PRODUCTS   NEWS

SMF POWER METAL FILM CHIP RESISTORS

Download PDF File

Features • Flameproof UL94V0 molded package, resistant to    heat, humidity & insulation • Special design for automatic surface mounting • Excellent mechanical strength & electrical stability • Reduced assembly costS

GENERAL SPECIFICATIONS AND DIMENSIONS

Model	Dimension[mm]						Resistance Range	Max. Working Voltage
	A±0.3	B±0.3	C±0.3	D±0.3	E max.	F±0.3
SMF 1W	3.3	4.5	1.2	2.7	6	1.1	1Ω~2MΩ	300V
SMF 2W	4	6.7	1.4	3.55	7.9	1.5	1Ω~2MΩ	300V
SMF 3W	5.5	10.5	1.7	5	12	2.3	1Ω~2MΩ	500V
SMF 5W	7.3	13.5	1.7	6.8	17	2.5	1Ω~2MΩ	500V

　

CHARACTERISTICS                                                  Values in [ ] mean change in ohmic value after test

Temperature Range		-55C~+200C
Temp. Coefficient		JIS-C-5202-5.2 ±100ppm/C
Short Time Overload	ΔR±0.5%	JIS-C-5202-5.5 5 x Power rating 5 sec.
Rated Load	ΔR±0.5%	JIS-C-5202-5.4 Rated Voltage for 30 minutes
Insulation Resistance	500V megger	JIS-C-5202-5.6 10,000MΩ
Load Life	ΔR±1%	JIS-C-5202-7.10 Power rating 1.5hours on, 30 minutes off, 1000hours
Moisture Load Life	ΔR±1%	JIS-C-5202-7.9  40C, 95%RH, 0.1 x Power rating,                                       1.5 hours on, 30 minutes off, 500hours

DERATING CURVE

ORDERING PROCEDURE EXAMPLE

Copyright©, RARA Electronics Corporation
Tel:82-32-817-4325 Fax:82-32-817-4329