Unictron NTC Thermistor(JNR) devices are made of a specially formulated metal oxide
ceramic material which is capable of suppressing high inrush current surges.
JNR devices, being of relatively high resistance, shall limit the inrush current for 1 – 2 seconds during which time the device decreased in resistance substantially to a point where its voltage drop is negligible. The devices are especially useful in power supplies, because of the extremely low impedance of the capacitor being charged, of which the bridge is usually subjected to an exceedingly high current surge at turn-on point.
UNICTRON NTC Thermistor (JNR) devices are TYPE 5ø ~ 20ø SERIES
Part | Resistance at 25°C | Imax | Rlmax | Maximum Capacitance AC240V | Pmax typical | Dissipation factor typical | Thermal time constant typical | Rated temperature |
(Ohms) | (Amps) | (Ω) | (µF) | (W) | δ (mW/°C) | (sec.) | TL~TU °C | |
05S100 L | 10.0 | 1.0 | 0.975 | 100 | 1.2 | 9.5 | 25 | -40 ~ +150 |
05S200 L | 20.0 | 0.30 | 0.283 | 100 | ||||
08S040 M | 4.0 | 2.0 | 0.345 | 220 | 2.0 | Approx. | Approx. | -40 ~ +170 |
08S4R7 M | 4.7 | 3.0 | 0.405 | 220 | ||||
08S050 M | 5.0 | 3.0 | 0.238 | 220 | ||||
08S060 L | 6.0 | 3.0 | 0.284 | 220 | ||||
08S070 L | 7.0 | 2.0 | 0.445 | 220 | ||||
08S080 L | 8.0 | 2.0 | 0.658 | 220 | ||||
08S100 L | 10.0 | 3.0 | 0.280 | 220 | ||||
08S150 L | 150 | 2.0 | 0.567 | 100 | ||||
08S180 L | 18.0 | 2.0 | 0.747 | 100 | ||||
08S200 L | 20.0 | 1.0 | 1.157 | 100 | ||||
08S220 L | 22.0 | 1.0 | 1.279 | 100 | ||||
08S300 L | 30.0 | 0.5 | 4.087 | 100 | ||||
10S1R0 M | 1.0 | 5.0 | 0.081 | 470 | 2.1 | Approx. | Approx. | -40 ~ +170 |
10S1R3 M | 1.3 | 5.0 | 0.083 | 330 | ||||
10S1R5 M | 1.5 | 5.0 | 0.092 | 330 | ||||
10S2R0 M | 2.0 | 5.0 | 0.123 | 470 | ||||
10S2R5 M | 2.5 | 5.0 | 0.118 | 470 | ||||
10S030 M | 3.0 | 4.0 | 0.136 | 560 | ||||
10S040 M | 4.0 | 4.0 | 0.160 | 560 | ||||
10S050 M | 5.0 | 4.0 | 0.176 | 470 | ||||
10S060 L | 6.0 | 3.0 | 0.260 | 330 | ||||
10S6R8 L | 6.8 | 3.0 | 0.288 | 330 | ||||
10S070 L | 7.0 | 3.0 | 0.297 | 330 | ||||
10S080 L | 8.00 | 3.0 | 0.329 | 330 | ||||
10S100 L | 10.00 | 3.0 | 0.343 | 330 | ||||
10S120 L | 12.0 | 2.5 | 0.307 | 470 | ||||
10S130 L | 13.0 | 2.5 | 0.333 | 330 | ||||
10S150 L | 15.0 | 2.5 | 0.407 | 330 | ||||
10S160 L | 16.0 | 2.5 | 0.410 | 330 | ||||
10S200 L | 20.0 | 2.0 | 0.576 | 330 | ||||
10S220 L | 22.0 | 2.0 | 0.627 | 220 | ||||
10S250 L | 25.0 | 2.0 | 0.712 | 330 | ||||
10S300 L | 30.0 | 2.0 | 0.844 | 330 | ||||
10S470 L | 47.0 | 2.0 | 0.795 | 330 | ||||
10S500 L | 50.0 | 2.0 | 0.905 | 330 | ||||
10S800 L | 80.0 | 1.0 | 2.217 | 390 | ||||
10S101 L | 100.0 | 1.0 | 2.275 | 220 | ||||
10S121 L | 120.0 | 1.0 | 2.693 | 390 | ||||
13S1R0 M | 1.0 | 3.0 | 0.171 | 560 | 2.9 | Approx. | Approx. | -40 ~ +200 |
13S1R3 M | 1.3 | 7.0 | 0.080 | 470 | ||||
13S2R0 M | 2.0 | 5.0 | 0.090 | 470 | ||||
13S2R5 M | 2.5 | 6.0 | 0.096 | 560 | ||||
13S030 M | 3.0 | 5.0 | 0.102 | 560 | ||||
13S040 M | 4.0 | 5.0 | 0.124 | 560 | ||||
13S4R7 M | 4.7 | 5.0 | 0.146 | 560 | ||||
13S050 M | 5.0 | 5.0 | 0.155 | 560 | ||||
13S060 L | 6.0 | 5.0 | 0.180 | 470 | ||||
13S070 L | 7.0 | 4.0 | 0.204 | 470 | ||||
13S080 L | 8.0 | 4.0 | 0.230 | 470 | ||||
13S100 L | 10.0 | 4.0 | 0.207 | 470 | ||||
13S120 L | 12.0 | 3.0 | 0.302 | 560 | ||||
13S150 L | 15.0 | 3.0 | 0.317 | 560 | ||||
13S160 L | 16.0 | 3.0 | 0.338 | 560 | ||||
Note : M = Tolerance of R25 ±20%, L = Tolerance of R25 ±15% | ||||||||
UNICTRON NTC Thermistor (JNR) devices are TYPE 5ø ~ 20ø SERIES
Part | Resistance at 25°C | Imax | Rlmax | Maximum Capacitance AC240V | Pmax typical | Dissipation factor typical | Thermal time constant typical | Rated temperature |
(Ohms) | (Amps) | (Ω) | (µF) | (W) | δ (mW/°C) | (sec.) | TL~TU °C | |
13S180 L | 18.0 | 3.0 | 0.360 | 560 | 2.9 | Approx. | Approx. | -40 ~ +200 |
13S200 L | 20.0 | 3.0 | 0.400 | 470 | ||||
13S250 L | 25.0 | 2.0 | 0.763 | 560 | ||||
13S500 L | 50.0 | 2.0 | 0.636 | 560 | ||||
15S1R0 M | 1.0 | 8.0 | 0.038 | 680 | 3.5 | Approx. | Approx. | -40 ~ +200 |
15S1R3 M | 1.3 | 8.0 | 0.053 | 680 | ||||
15S1R5 M | 1.5 | 8.0 | 0.058 | 800 | ||||
15S2R0 M | 2.0 | 8.0 | 0.077 | 680 | ||||
15S2R5 M | 2.5 | 8.0 | 0.074 | 680 | ||||
15S030 M | 3.0 | 7.0 | 0.095 | 820 | ||||
15S040 M | 4.0 | 6.0 | 0.129 | 800 | ||||
15S4R7 M | 4.7 | 6.0 | 0.120 | 820 | ||||
15S050 M | 5.0 | 6.0 | 0.128 | 820 | ||||
15S060 L | 6.0 | 5.0 | 0.157 | 680 | ||||
15S070 L | 7.0 | 5.0 | 0.135 | 820 | ||||
15S080 L | 8.0 | 5.0 | 0.179 | 680 | ||||
15S100 L | 10.0 | 5.0 | 0.194 | 820 | ||||
15S120 L | 12.0 | 4.0 | 0.233 | 680 | ||||
15S150 L | 15.0 | 4.0 | 0.231 | 820 | ||||
15S160 L | 16.0 | 4.0 | 0.247 | 820 | ||||
15S180 L | 18.0 | 4.0 | 0.280 | 680 | ||||
15S200 L | 20.0 | 4.0 | 0.285 | 820 | ||||
15S220 L | 22.0 | 4.0 | 0.317 | 560 | ||||
15S250 L | 25.0 | 3.0 | 0.415 | 680 | ||||
15S300 L | 30.0 | 3.0 | 0.449 | 680 | ||||
15S400 L | 40.0 | 3.0 | 0.500 | 1000 | ||||
15S470 L | 47.0 | 3.0 | 0.524 | 1000 | ||||
15S800 L | 80.0 | 2.5 | 0.699 | 680 | ||||
15S121 L | 120.0 | 2.0 | 1.042 | 1000 | ||||
15S221 L | 220.0 | 1.0 | 3.455 | 1500 | ||||
20S0R7 M | 0.7 | 12.0 | 0.038 | 1000 | 4.28 | Approx. | Approx. | -40 ~ +200 |
20S1R0 M | 1.0 | 12.0 | 0.039 | 1000 | ||||
20S1R3 M | 1.3 | 8.0 | 0.038 | 1000 | ||||
20S1R5 M | 1.5 | 10.5 | 0.042 | 1000 | ||||
20S2R0 M | 2.0 | 10.0 | 0.059 | 1000 | ||||
20S2R5 M | 2.5 | 9.0 | 0.083 | 1000 | ||||
20S030 M | 3.0 | 8.5 | 0.100 | 1000 | ||||
20S040 M | 4.0 | 8.0 | 0.076 | 1000 | ||||
20S4R7 M | 4.7 | 7.5 | 0.113 | 1000 | ||||
20S050 M | 5.0 | 7.5 | 0.118 | 1000 | ||||
20S060 L | 6.0 | 7.0 | 0.138 | 1000 | ||||
20S6R8 L | 6.8 | 6.5 | 0.151 | 1000 | ||||
20S070 L | 7.0 | 6.5 | 0.155 | 1000 | ||||
20S080 L | 8.0 | 6.0 | 0.178 | 1000 | ||||
20S100 L | 10.0 | 6.0 | 0.203 | 1000 | ||||
20S120 L | 12.0 | 5.0 | 0.204 | 1000 | ||||
20S130 L | 13.0 | 5.0 | 0.221 | 1000 | ||||
20S150 L | 15.0 | 4.5 | 0.255 | 1000 | ||||
20S200 L | 20.0 | 4.0 | 0.308 | 1000 | ||||
20S121 L | 120 | 2.0 | 1.075 | 1500 | ||||
Note : M = Tolerance of R25 ±20%, L = Tolerance of R25 ±15% | ||||||||