Ceramic Tube Wirewound Resistors, buy Thermistor for air conditioner 2 ohm wirewound variable resistor on China Suppliers Mobile

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Thermistor for air conditioner 2 ohm wirewound variable resistor

Coated High Power Ceramic Tube Resistors (HPR)

1,Surface glazed, won't be easily polluted or eroded by chemistry gas, hi8gh insulating capacity, can resist himidity and heat well, can be use in the atrocious environment.

2,Good overload and heat durability capacity, the useful time is longer than the others.

3,Resistance tolerance:±5%, ±10%

Test Item Test Condition Performance

Temperature coefficient ±300ppm/

Short time overload R≤±(2%R₀+0.05R)

Resistance to soldering heat R≤±(1% R₀+0.05R)

Solerability The soldering area is over 95%

Temperature cycling R≤±(1% R₀+0.05R)

Load life in humidity R≤±(5% R₀+0.05R)

Load life in heat R≤±(5% R₀+0.05R)

Nonflammability No visible flam

Description	Power	Tolerance	Range
HPR High power ceramic tube wire-wound resistors	10W,25W,50W,75W,100W,150W,200W,300W, ,400w,500w,600w,800w,1000w,1200W,1500W,2000W	±5% ±10%	0R1-100K
BHR Glaze high power ceramic tube wire-wound resistors		±5% ±10%	0R1-100K
FHR Flat type high power ceramic tube wire-wound resistors	10W,20W,30W,40W,55W,70W,95W	±5% ±10%	1R-100K

Part No.	Power	Dimensions(mm)									Resistance range
Part No.	Power	L1±1	L2±2	L3±2	L4±2	H1±1	H2±2	W±1	T±0.5	F±0.3	Resistance range
HPR10B	10W	28	47	57	67	25	39	12	5.2	3.0	0R1~2K5
HPR20B	20W	39	60	80	100	34	51	20	5.2	3.0	0R1~10K
HPR25B	25W	39	60	80	100	34	51	20	5.2	3.0	0R1~10K
HPR30B	30W	59	80	100	120	34	51	20	5.2	3.0	0R1~16K
HPR40B	40W	76	97	117	137	34	51	20	5.2	3.0	0R1~20K
HPR50B	50W	78	102	122	142	43.5	65	28	6.2	4.5	0R1~28K
HPR60B	60W	88	112	132	152	43.5	65	28	6.2	4.5	0R1~32K
HPR80B	80W	98	122	142	162	43.5	65	28	6.2	4.5	0R1~40K
HPR100	100W	128	152	172	192	43.5	65	28	6.2	4.5	0R1~48K
HPR120	120W	148	172	192	212	43.5	65	28	6.2	4.5	0R1~56K
HPR150	150W	158	182	202	222	43.5	65	28	6.2	4.5	0R1~60K
HPR200	200W	228	252	272	292	43.5	65	28	6.2	4.5	0R1~88K
HPR250	250W	255	280	300	320	43.5	65	28	6.2	4.5	0R1~96K
HPR300	300W	245	275	306	337	60	85	40	6.2	6.0	0R1~134K
HPR350	350W	265	295	326	357	60	85	40	6.2	6.0	0R1~145K
HPR400	400W	315	345	376	407	60	85	40	6.2	6.0	0R1~173K

Test Item	Test Condition	Performance
Temperature coefficient	Test the resistance value at normal temperature added 100℃,calculate per ℃ resistance value rate.	±350ppm/℃
Short time overload	According 10 times rated power to account the voltage or max .overload voltage (get the lower)for 5 seconds.	ΔR≤±(2%R₀+0.05Ω)
Resistance to soldering heat	Immerge into the 350±10℃ tin stove for 2~3 seconds.	ΔR≤±(1%R₀+0.05Ω)
Solderability	Immerge into the 260±5℃ tin stove for 2~3 seconds.	The area of soldering is over 95%
Temperature cycling	At -55℃ for 30 min,then at +25℃ for 10~15 min,then at +275℃ for 30 min,then at +25℃ for 10~15min, total 5 cycles.	ΔR≤±(1%R₀+0.05Ω)
Load life in humidity	Overload rated voltage or Max. working voltage(get the lower) for 1000 hours (1.5 hours on and half-hours off) at the 40±2℃ and 90~95% relative humidity.	ΔR≤±(5%R₀+0.05Ω)
Load life in heat	Overload rated voltage or Max. working voltage(get the lower)m for 1000 hours (1.5 hours on and half-hours off) at the 70±2℃.	ΔR≤±(5%R₀+0.05Ω)
Nonflammability	Respectively load AC voltage by5,10,16 times rated power for 5 min.	No visible flame