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Specifications
Resistance @ 25℃:
5Ω
Pitch:
7.5mm
Operating Temperature:
-55℃~+200℃
Tolerance:
±20%
Steady State Current (Max):
3A
Thermal Time Constant:
34s
Mfr. Part #:
NTC 5D-9
Package:
Through Hole,P=7.5mm
Key Attributes
Model Number:
NTC 5D-9
Product Description
Product Overview
This document details the NTC 5D-9/P=7.5 thermistor with inward bent leads, manufactured by Dongguan Chengxi Electronics Co., Ltd. It is designed for applications requiring precise temperature-dependent resistance, featuring a black phenolic resin body and tinned copper wire leads.
Product Attributes
- Brand: NTC
- Origin: Dongguan Chengxi Electronics Co., Ltd.
- Material: Phenolic resin (body), Tinned copper wire (leads)
- Color: Black
Technical Specifications
| Model | R 25 () | Max Steady Current (A) | Max Current Approx. Resistance () | Dissipation Factor (mW/) | Thermal Time Constant (S) | Operating Temperature () | Dimensions (mm) |
|---|---|---|---|---|---|---|---|
| MF72-5D-9 | 5 20% | 3 | 0.21 | 11 | 34 | -55+200 | Dmax 10, Tmax 5.0, W0.5 7.5, Hmax 11, Lmin 18, d0.1 0.7 |
Electrical Performance Testing
| Item | Standard Requirement | Test Conditions & Methods |
|---|---|---|
| Nominal Resistance (R25) | 520% | Thermistor DC resistance measured at 253 after 2 hours in static air at 253, using sufficiently low power consumption. |
| Max Steady Current (A) | 3A | Test circuit with ammeter, adjustable resistor, and test sample. Product is thermostatted to 25 and subjected to 220V voltage without damage. |
Mechanical Performance Testing
| Item | Test Method | Technical Requirement |
|---|---|---|
| Lead Strength | According to GB2423-29 Experiment u | No mechanical damage |
| Vibration Test | Simple harmonic vibration: frequency 10Hz-55Hz-10Hz; amplitude 0.75mm. According to GB10193-88 Section 4.16. | No mechanical damage |
| Solderability | According to GB2423-28 Experiment Ta. Solder pot method: temperature 2305; immersion time 50.5s; immersion depth 20.5mm. | At least 95% of the terminal surface covered with new solder. |
2411151454_DGCX-NTC-5D-9_C42383351.pdf
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