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Specifications
Resistance @ 25℃:
100kΩ
Power(Watts):
100mW
Operating Temperature:
-40℃~+125℃
Tolerance:
±1%
B Constant (25℃/100℃):
4334K
Steady State Current (Max):
100uA
B Constant (25℃/85℃):
4311K
B Constant (25℃/75℃):
-
B Constant (25℃/50℃):
4250K
B Constant Tolerance:
±2%
Mfr. Part #:
NCP18WF104E03RB
Package:
0603
Key Attributes
Model Number:
NCP18WF104E03RB
Product Description
NTC Thermistors
This catalog features NTC thermistors designed for temperature sensing, compensation, and inrush current suppression applications. The products are available in chip, thermo string, and lead types, offering various sizes, resistance values, and temperature characteristics to suit diverse electronic equipment needs.
Product Attributes
- Brand: Murata
- Certifications: EU RoHS Compliant
Technical Specifications
| Category | Product ID | Series | Type | Resistance () | Resistance Tolerance | Dimensions (LxW or LxT) | Temperature Characteristics (B-Constant) | Packaging | Lead Wire Type | Shape of Lead Wire | Full Length (mm) | Body Diameter |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature Sensor and Compensation | NC | R44E | Chip Type | 102, 103, 104 (e.g., 1k, 10k, 100k) | 0.5%, 1%, 3%, 5% | 0201 (0.6x0.3mm), 0402 (1.0x0.5mm), 0603 (1.6x0.8mm), 0805 (2.0x1.25mm) | 31003149K, 32503299K, 33503399K, 35003549K, 36503699K, 39003949K, 39503999K, 40504099K, 41504199K, 42504299K, 44504499K, 45004549K | Plastic Taping (4000 pcs.), Paper Taping (4000 pcs.), Paper Taping (10000 pcs.), Paper Taping (15000 pcs.) | - | - | - | - |
| Temperature Sensor | NXF | R44E | Thermo String Type | 103, 473, 104 (e.g., 10k, 47k, 100k) | 1% | 0402 (1.0x0.5mm) | 33503399K, 40504099K, 42504299K | Bulk | 0.3 Copper Lead Wire with Polyurethane Coat | Kink | 25mm to 150mm | - |
| Temperature Sensor | NXR | R44E | Lead Type | 103, 473, 104 (e.g., 10k, 47k, 100k) | 1%, 3%, 5% | 0402 (1.0x0.5mm) | 40504099K, 42504299K, 33503399K, 35003549K, 39003949K | Ammo Pack Taping, Bulk | 0.4 Copper-clad Fe Wire, Tinned | Lead Spacing 2.5mm, Lead Spacing 5.0mm | 10mm to 40mm (Lead distance between reference and bottom planes) | - |
| Inrush Current Suppression | NT | R44E | Lead Type | 3R0, 100 (e.g., 3, 10) | 15% | - | - | Bulk, Ammo Pack Taping | - | - | - | 7mm, 9mm, 10mm, 13mm, 18mm, 22mm |
Basic Characteristics
1. Zero-power Resistance of Thermistor: R=R0 expB (1/T-1/T0)
2. B-Constant: B=Rn (R/R0) / (1/T-1/T0)
3. Thermal Dissipation Constant: P=C (T2-T1)
Where:
- R: Resistance in ambient temperature T (K)
- R0: Resistance in ambient temperature T0 (K)
- T: Absolute temperature (K)
- B: B-Constant of Thermistor
- P: Electric power spent (mW)
- C: Thermal dissipation constant (mW/C)
- T1: Ambient temperature (C)
- T2: Thermistor temperature (C)
2410010333_muRata-NCP18WF104E03RB_C109352.pdf
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