Product Overview
This product is a series of NTC thermistors designed for various applications. They offer a range of resistance values, tolerances, and operating temperatures, making them suitable for precise temperature sensing and control. Key features include reliable performance across a wide temperature range, and robust construction to withstand demanding conditions. These thermistors are ideal for applications requiring accurate temperature monitoring and protection.
Product Attributes
- Packaging Options: Bulk, Foldable Tape
Technical Specifications
| Series | R25 () | Resistance Tolerance | Thermal Dissipation Coefficient (mW/C) | Thermal Time Constant (s) | Maximum Steady-State Current Imax (A) | Maximum Capacitance Cmax (F) | Material Constant B (K) 10% | Operating Temperature T (C) | Dimensions (mm) DMAX | Dimensions (mm) TMAX | Dimensions (mm) d0.05 | Dimensions (mm) P0.5 | Dimensions (mm) Hmax | Dimensions (mm) L |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CN0515M | 15.0 | 20% | ~6 | <22 | 0.6 | 47 | 3000 | -40~150 | 6.5 | 5.0 | 0.6 | 5.0 | 12.5 | - |
| CN0705M | 5.0 | 20% | ~10 | <30 | 2.0 | 100 | 2600 | -40~150 | 8.5 | 5.0 | 0.6 | 5.0 | 14.5 | - |
| CN0708M | 8.0 | 20% | ~10 | <30 | 1.0 | 100 | 2600 | -40~150 | 8.5 | 5.0 | 0.6 | 5.0 | 14.5 | - |
| CN0710M | 10.0 | 20% | ~10 | <30 | 1.0 | 100 | 2800 | -40~150 | 8.5 | 5.0 | 0.6 | 5.0 | 14.5 | - |
| CN0903M | 3.0 | 20% | ~11 | <38 | 4.0 | 220 | 2600 | -40~170 | 10.5 | 5.5 | 0.6/0.8 | 5.0/7.5 | 16.5 | - |
| CN0905M | 5.0 | 20% | ~11 | <38 | 3.0 | 220 | 2600 | -40~170 | 10.5 | 5.5 | 0.6/0.8 | 5.0/7.5 | 16.5 | - |
| CN0908M | 8.0 | 20% | ~11 | <38 | 2.0 | 220 | 2800 | -40~170 | 10.5 | 5.5 | 0.6/0.8 | 5.0/7.5 | 16.5 | - |
| CN0910M | 10.0 | 20% | ~11 | <38 | 2.0 | 220 | 2800 | -40~170 | 10.5 | 5.5 | 0.6/0.8 | 5.0/7.5 | 16.5 | - |
| CN1005M | 5.0 | 20% | ~13 | <50 | 4.0 | 330 | 2800 | -40~170 | 12.5 | 5.5 | 0.6/0.8 | 5.0/7.5 | 18.5 | - |
| CN1008M | 8.0 | 20% | ~13 | <50 | 3.0 | 330 | 2800 | -40~170 | 12.5 | 5.5 | 0.6/0.8 | 5.0/7.5 | 18.5 | - |
| CN1010M | 10.0 | 20% | ~13 | <50 | 3.0 | 330 | 2800 | -40~170 | 12.5 | 5.5 | 0.6/0.8 | 5.0/7.5 | 18.5 | - |
| CN1016M | 16.0 | 20% | ~13 | <50 | 2.0 | 330 | 2900 | -40~170 | 12.5 | 5.5 | 0.6/0.8 | 5.0/7.5 | 18.5 | - |
| CN1020M | 20.0 | 20% | ~13 | <50 | 2.0 | 330 | 3000 | -40~170 | 12.5 | 5.5 | 0.6/0.8 | 5.0/7.5 | 18.5 | - |
| CN134R7M | 4.7 | 20% | ~16 | <70 | 5.0 | 470 | 2800 | -40~170 | 14.5 | 6.0 | 0.8 | 7.5 | 20.5 | - |
| CN1305M | 5.0 | 20% | ~16 | <70 | 5.0 | 470 | 2800 | -40~170 | 14.5 | 6.0 | 0.8 | 7.5 | 20.5 | - |
| CN1308M | 8.0 | 20% | ~16 | <70 | 4.0 | 470 | 3000 | -40~170 | 14.5 | 6.0 | 0.8 | 7.5 | 20.5 | - |
| CN1310M | 10.0 | 20% | ~16 | <70 | 4.0 | 470 | 3000 | -40~170 | 14.5 | 6.0 | 0.8 | 7.5 | 20.5 | - |
| CN152R5M | 2.5 | 20% | ~20 | <85 | 7.0 | 680 | 2800 | -40~200 | 16.5 | 6.5 | 0.8/1.0 | 7.5 | 22.5 | - |
| CN1503M | 3.0 | 20% | ~20 | <85 | 7.0 | 680 | 2800 | -40~200 | 16.5 | 6.5 | 0.8/1.0 | 7.5 | 22.5 | - |
| CN153R3M | 3.3 | 20% | ~20 | <85 | 7.0 | 680 | 2900 | -40~200 | 16.5 | 6.5 | 0.8/1.0 | 7.5 | 22.5 | - |
| CN1505M | 5.0 | 20% | ~20 | <85 | 6.0 | 680 | 3000 | -40~200 | 16.5 | 6.5 | 0.8/1.0 | 7.5 | 22.5 | - |
| CN1510M | 10.0 | 20% | ~20 | <85 | 5.0 | 680 | 3200 | -40~200 | 16.5 | 6.5 | 0.8/1.0 | 7.5 | 22.5 | - |
| CN1515M | 15.0 | 20% | ~20 | <85 | 4.0 | 680 | 3200 | -40~200 | 16.5 | 6.5 | 0.8/1.0 | 7.5 | 22.5 | - |
| CN1520M | 20.0 | 20% | ~20 | <85 | 4.0 | 680 | 3200 | -40~200 | 16.5 | 6.5 | 0.8/1.0 | 7.5 | 22.5 | - |
| CN2005M | 5.0 | 20% | ~26 | <110 | 7.0 | 1000 | 3000 | -40~200 | 22.5 | 7.0 | 0.8/1.0 | 7.5/10.0 | 28.5 | - |
| CN2010M | 10.0 | 20% | ~26 | <110 | 6.0 | 1000 | 3200 | -40~200 | 22.5 | 7.0 | 0.8/1.0 | 7.5/10.0 | 28.5 | - |
Reliability
| Item | Technical Requirement | Test Method |
|---|---|---|
| Solderability | Even tinning on the wetted part, tinning area 95% | After dipping the lead out end with flux, immerse it in a tin bath at a temperature of 245 5 and a depth of 15mm, with the tin surface 6mm away from the lower end of the NTC body, for 3 0.5 seconds. (Refer to IEC68-2-20 /GB2423.28 Test Ta) |
| Resistance To Soldering Heat | No visible damage, R/RN 20% (R =RN-RN') | Conduct the test according to IEC68-2-20 (GB2423. 28) test Tb. Using the welding groove method, the lead out end is dipped in flux and immersed in a tin groove with a temperature of 260 5 and a depth of 15mm. The tin surface is 6mm away from the lower end of the NTC body and maintained for 10 1 second. After recovering for 4-5 hours under the condition of 25 1 , retest the rated zero power resistance RN'. |
| Strength of lead terminal | No visible damage, R/RN 20% (R =RN-RN') | Conduct the test according to IEC68-2-21 (GB2423. 29) test U. Test Ua: tensile force of 10N for 10 seconds; Test Ub: Bend 90, pull 10N, and continue for 10 seconds; Twist 180, pull 5N, and continue for 10 seconds. After recovering for 4-5 hours under the condition of 25 1 , retest the rated zero power resistance RN'. |
| Temp. Cycling Testing | No visible damage, R/RN 20% (R =RN-RN') | Store for 30 mins each in environment temperature of Ta=-402 and Tb=1502, and cycle 5 times. Each high and low temperature cycle has a transition time of 5 minutes in an environment of 251. After conducting temperature cycling tests on the sample, take it out and place it at room temperature (25 1) for 4-5 hours before measuring the zero power resistance RN'. |
| Electrical Cycling Testing | No visible damage, R/RN 20% (R =RN-RN') | Environmental temperature: 25 1 . Cycle count: 1000 times, on/off: 5 s/55 s, test current: 5.0A. After placing the sample at room temperature (25 1 ) for 4-5 hours, measure its zero power resistance RN'. |
| Load Life (Endurance) Testing | No visible damage, R/RN 20% (R =RN-RN') | Environmental temperature: 25 1 . The sample passes through a maximum working current of 5.0A. After 1000 24 hours, it is taken out and placed at room temperature (25 1 ) for 4-5 hours. The zero power resistance RN' is measured. |
| Humidity Testing | No visible damage, R/RN 20% (R =RN-RN') | After being placed in an environment with a temperature of 40 2 and a relative humidity of 93 3% for 200 24 hours, take it out and place it at room temperature (25 1 ) for 1-2 hours to measure its zero power resistance RN'. |
| Insulation Withstand voltage | 700VDC, No breakdown or arcing during the test | Take the lead end of the thermistor as one electrode, and wrap the other electrode around the thermistor body with metal foil. Apply a voltage of 700VDC to both electrodes for 60 seconds. |
Storage Conditions
- Temperature: -10+40
- Humidity: 70%RH
- Term: 6 months (First-in/ First-out)
- Place: Do not expose to corrosive gas, flammable/explosive gases, oil, water, chemical solutions, or direct sunlight.
- Handling after seal open: After unpacking of the minimum package, reseal it promptly or store it inside a sealed container with a drying agent.
Parameter Definitions
| Item | Units | Definition |
|---|---|---|
| Zero power resistor R25 | The DC resistance value of the thermistor measured at the specified temperature (251). The measurement should be carried out under conditions where the change in resistance value caused by self-heating is negligible relative to the total measurement error. | |
| Resistance tolerance | % | The maximum allowable deviation range of the actual resistance value of the resistor from the nominal value. |
| Thermal dissipation coefficient | mW/C | The power consumed to raise the temperature of the thermistor by 1 , usually the ratio of power consumption change to temperature change in thermistors at a specified temperature. |
| Thermal time constant | s | The time required for the temperature of a thermistor to drop to 63.2% of its initial and final temperature difference under zero power conditions. |
| Maximum steady-state current Imax | A | The maximum current that can be continuously applied to a thermistor under ambient temperature conditions of 25 . |
| Maximum impulse capacitance Cmax | F | The maximum allowable capacitance value of a capacitor connected to a thermistor under load conditions. |
| Material Constant B | K | Used to represent the material constant of negative temperature coefficient thermistors: B=T1T2/(T2-T1)ln (R1/R2) or B=2.303[T1T2/(T2-T1)]log (R1/R2) where T1=298.15K(25C), T2 = 323.15K(50C). |
| Working temperature range | Thermistor design allows for continuous operating temperature range in zero power state. |
*Detailed testing methods for Thermal dissipation coefficient , Thermal time constant , and Maximum impulse capacitance Cmax are provided in the Appendix.
2510211530_TyoHM-CN0705MUS6BB3P5G_C49241829.pdf
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