High Voltage Resistors
SUR CARBON COMPOSITION RESISTORS
카본콤포지션저항기
Improved pulse endurance characteristics compared to carbon film devices.
Wide resistance range is available, i.e. 10 ohm to 10M ohm.
형명
Type		 촌 법 Dimensions [mm]
L max D max d±0.02 ℓ ±3
SUR25 6.5 2.5 0.58 26
SUR37 9.0 3.5 0.7 26
SUR68 16 5.5 0.8 32
형명
Type		 정격전력
Rated Wattage 		최고사용전압
Max. Working
Voltage		 절연저항
Insulation Resistance
(V-block method)		 서지테스트
Surge Test		 저항치범위
Resistance
Range		 저항치허용차
Resistance
Tolerance
SUR25 0.25W 350V Min.10MΩ(350±50V DC
during 1min.)		 8kV/10nF
(2.5sec on/off 10cycle)		 Non-inductive:
10Ω ~ 10kΩ

Inductive:
10kΩ ~ 10MΩ		 ±5(J)
±10(K)
±20(M)
SUR37 0.5W 700V Min.10MΩ(500±50V DC
during 1min.)		 8kV/10nF
(2.5sec on/off 10cycle)
SUR68 1W 1,000V Min.10MΩ(700±50V DC
during 1min.)		 R 1kΩ: 8kV/10nF
R>1kΩ: 10kV/10nF
항 목 Test Conditions & Test method
 1. 사용온도범위 Operating Temp. Range -55°C~ +155°C 
 2. 온도계수Temperature coefficient 1000ppm/°C Maximum 
 3. 납땜성 Solder ability 95% Solder ability: 2sec 235±5°C. flux 600 
 4. 단시간과부하 Short Time Overload ±[2.5% + 0.05Ω] Rated voltage×2.5, 5sec on, 45sec off, 10cycle 
 5. 내구성 Load Life ±[8.0% + 0.05Ω] 70±3°C 0.5hrs.-on, 0.5hrs -off, 1000hrs 
 6. 내습성 Moisture Resistance ±[3.0% + 0.05Ω] 40°C, 95%RH, 0.1×wattage rating. 1.5hrs.-on, 30min-off, 500hrs 
 7. 비틀림 Torsion No Damage 2.5kgf, remains 5~10sec 
 8. 열충격 Thermal Shock ±[2.0% + 0.05Ω] 30min -55°C , 30min +155°C 5cycle 
 9. 내진성 Vibration ±[1.0% + 0.05Ω] 10~55Hz Displacement 1.5mm or acceleration 10g 
Three direction: total 6h (2×3h) 

Ten discharges from a 10nF capacitor charged to Vmax:
12 discharges/min.
No evidence of flash over, mechanical damage, arcing or
insulation breakdown

SUR68 1W 10kΩ K TP
1 2 3 4 5

1. 형명 Type
2. 정격전력 Rated Wattage
3. 저항치 Resistance
4. 허용오차 Tolerance
5. 2차가공 (TP= Taping & BK= Bulk))