NTC Thermistors
This catalog details NTC Thermistors designed for temperature sensing, compensation, and inrush current suppression. These components are suitable for various applications requiring accurate temperature measurement and protection against current surges. Please refer to the rating and caution sections for proper handling and operation to prevent issues like smoking and burning. This catalog provides typical specifications; please approve product specifications or transact an approval sheet before ordering.
Product Attributes
- Brand: Murata
- Certifications: EU RoHS Compliant
Technical Specifications
| Type | Product ID | Series | Resistance Tolerance | Resistance () | Dimensions (LxW / LxT) | Temperature Characteristics | B-Constant (K) | Packaging | Lead Wire Type | Shape of Lead Wire | Lead Spacing (mm) | Body Diameter (mm) | Full Length (mm) |
| Temperature Sensor and Compensation Chip Type | NC | D, F, E, J, P | 0.5%, 1%, 3%, 5% | 102, 103, 104 (e.g., 1k, 10k, 100k) | 0201 (0.6x0.3mm), 0402 (1.0x0.5mm), 0603 (1.6x0.8mm), 0805 (2.0x1.25mm) | XC, XF, XH, XM, XQ, XV, XW, WB, WD, WF, WL, WM | 31003149, 32503299, 33503399, 35003549, 36503699, 39003949, 39503999, 40504099, 41504199, 42504299, 44504499, 45004549 | Plastic Taping (4mm, 4000 pcs), Paper Taping (4mm, 4000 pcs), Paper Taping (2mm, 10000 pcs), Paper Taping (2mm, 15000 pcs) | N/A | N/A | N/A | N/A | N/A |
| Temperature Sensor Thermo String Type | NXF | A | 1% | 103, 104 (e.g., 10k, 100k) | 0402 (1.0x0.5mm) | XH, XV, WB, WF | 33503399, 39003949, 40504099, 42504299 | Bulk | 0.3mm Copper Lead Wire with Polyurethane Coat | Twisted Lead Wire Type | N/A | N/A | 25mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm |
| Temperature Sensor Lead Type | NXR | A | 1%, 3%, 5% | 202, 103, 104 (e.g., 2.0k, 10k, 100k) | 0402 (1.0x0.5mm) | XH, XM, XV, WB, WF | 33503399, 35003549, 39003949, 40504099, 42504299 | Ammo Pack Taping, Bulk | 0.4mm Copper-clad Fe Wire, Tinned (Lead Type); 0.46mm Cu Wire with Coat (Insulation Type) | Lead Type, Insulation Type | 2.5mm, 5.0mm | N/A | 10mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 16mm |
| Inrush Current Suppression Lead Type | NT | PA5, PA6, PA7, PA9, PAA, PAD, PAJ, PAN | 15% | 3R0, 100 (e.g., 3, 10) | N/A | DK | N/A | Standard (Bulk), Ammo Pack Taping | N/A | N/A | N/A | 5mm, 6mm, 7mm, 9mm, 10mm, 13mm, 18mm, 22mm | N/A |
Formulas:
1. Zero-power Resistance of Thermistor: R=R0 expB (1/T-1/T0) ..............(1)
R: Resistance in ambient temperature T (K) (K: absolute temperature)
R0: Resistance in ambient temperature T0 (K)
B: B-Constant of Thermistor as (1) formula
2. B-Constant: B=Rn (R/R0) / (1/T-1/T0) ............(2)
3. Thermal Dissipation Constant: When electric power P (mW) is spent in ambient temperature T1 and thermistor temperature rises T2, the formula is as follows P=C (T2-T1) ..................(3)
2304140030_muRata-NCP18XW223J03RB_C86144.pdf
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