Product Overview
The MF72 Series Power Type NTC Thermistor from Nanjing Shiheng Electronics Technology Co., Ltd. is designed for surge current suppression. This series offers reliable performance with a wide operating temperature range of -40C to 160C. Key electrical characteristics include a zero-power resistance at 25C (R25) and a B value, crucial for defining its thermal behavior. The product is manufactured with a black phenolic resin encapsulation and tinned copper leads, ensuring durability and ease of soldering. Suitable for various industrial applications requiring effective inrush current limiting.
Product Attributes
- Brand: Shiheng
- Product Name: MF72 Power Type NTC Thermistor
- Origin: Nanjing, China
- Encapsulation Material: Black Phenolic Resin
- Lead Material: Tinned Copper Wire
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, RoHS, CQC Safety Certification, Jiangsu High-tech Product Certification, TUV Certification
Technical Specifications
| Item | Symbol | Test Condition | Unit | Performance Requirement |
|---|---|---|---|---|
| Zero-power resistance at 25 | R25 | Ta=250.5, Test Power 0.1mW, in air | 5 20% | |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb) | K | 3000 10% |
| Max Steady Current | I max | - | A | 7 |
| Max Allowable Capacitance | CT | 240Vac | F | 820 |
| Dissipation Factor | - | mW/ | 24 | |
| Thermal Time Constant | - | sec | 87 | |
| Withstand Voltage | - | 700V/AC, 1min | - | No breakdown or flashover |
| Insulation Resistance | - | 500V/DC, 1min | M | 500 |
| Operating Temperature Range | - | - | -40 ~ 160 | |
| Max Rated Power | Pmax | - | W | 6 |
| Lead Strength (Pull) | - | Time: 101 sec | N | 0.5<d0.8: 10; 0.8<d1.25: 20 |
| Solderability | - | Temperature 2455, Time 2-3 sec | - | Tinning area 95% |
| Resistance to Soldering Heat | - | Solder pot temp: 2605, Immersion depth 6mm from body, Time 101 sec | - | R/R 25% |
| Steady State Damp Heat | - | Temperature: 402, Humidity: 932%, Time: 500 hours | - | R/R 25% |
| Rapid Temperature Change | - | -40 30min25 5min160 30min25 5min, 5 cycles | - | R/R 25% |
| High Temperature Storage | - | Temperature: 1605, Time: 1000 hours | - | R/R 25% |
| Max Steady Current Durability | - | Continuously apply max steady current at room temp for 50024h | - | R/R 25% |
| Max Capacitance Durability | - | Apply max allowable capacitance, close 50ms, open 5 times thermal time constant for a cycle, 1000 cycles | - | R/R 25% |
| Product Model Description: MF72-5D20 Shiheng Brand MF72: Power Type NTC Thermistor 5: Zero-power resistance at 25 is 5 20: Body diameter D20 | ||||
| Outline Dimensions (Unit: mm): D: Max 22.5, Min 25; L: 101; F: Max 7; T: 1.00.05 | ||||
Usage Precautions:
- Purpose: Surge current suppression.
- Soldering: Distance from coating layer 2mm, temperature < 360, time < 3 seconds.
- Storage Temperature: -1040.
- Storage Humidity: 75% RH.
- Avoid storage in corrosive gas or direct sunlight environments.
- Reseal packaging after opening.
- Shelf life: 1 year.
Contact Information:
Tel: 025-52121868
Address: No. 18 Jinyang Road, Hushutown, Jiangning District, Nanjing City, 211121, China
Fax: 025-52122373
Email: sales@shiheng.com.cn
Website: http://www.shiheng.com.cn
1811142211_Nanjing-Shiheng-Elec-MF72-5D20_C122780.pdf
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible
