Changsha Purple Horn E-Commerce Co., Ltd.
| Resistance @ 25℃ | 8Ω |
| Steady State Current (Max) | 4A |
| Description | 8Ω 4A Through Hole,P=7.5mm NTC Thermistors RoHS |
| Mfr. Part # | MF72 8D13-3.5 |
| Package | Through Hole,P=7.5mm |
| Model Number | MF72 8D13-3.5 |
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Product Specification
| Resistance @ 25℃ | 8Ω | Steady State Current (Max) | 4A |
| Description | 8Ω 4A Through Hole,P=7.5mm NTC Thermistors RoHS | Mfr. Part # | MF72 8D13-3.5 |
| Package | Through Hole,P=7.5mm | Model Number | MF72 8D13-3.5 |
The MF72 Series Power NTC Thermistor from Nanjing Shiheng Electronics Co., Ltd. is designed for current limiting applications. It features a silicone resin encapsulation, offering high temperature resistance (up to 300), fast heat dissipation, and excellent insulation. This makes it an optimal choice for power NTC thermistors. While the silicone resin surface is naturally rough for heat dissipation and may show friction marks from product interaction, these do not affect performance and can be manually erased. The material is firm but brittle; improper handling may cause minor cracks or chipping at the leads, which have been proven not to impact product performance or reliability.
| Item | Symbol | Test Conditions | Unit | Requirement |
|---|---|---|---|---|
| Zero Power Resistance at 25 | R25 | Ta=250.5 (Test Power 0.1mW, in air) | 8 20% | |
| B-value (B25/50) | B | Ta=250.01, Tb=500.01 | K | 3000 10% |
| Max steady current | I max | - | A | 4 |
| Max allowable capacity value | CT | 240Vac | F | 330 |
| Thermal dissipation Coefficient | In still air | mW/ | 15 | |
| Thermal time constant | In still air | sec | 60 | |
| Withstand voltage | - | 500V/AC 1min | - | No breakthrough and flash over |
| Insulation resistance | - | 500V/DC 1min | M | 500 |
| Operating temperature range | - | - | -40 ~ 200 | |
| Maximum rated power | Pmax | - | W | 4 |
| Dimension | D Max | L1 | L2 | F0.5 | T Max | d0.05 |
|---|---|---|---|---|---|---|
| (Unit: mm) | 14 | 3.50.5 | 52 | 7.5 | 6.0 | 0.8 |
| Item | Test Standard | Test Conditions and Methods | Requirement |
|---|---|---|---|
| Terminal strength | IEC60068-2-21 | Lead diameter (mm): 0.5| No obvious damage, |R25/R25|25% | |
| Solderability | IEC60068-2-20 | Temperature 2455, time 2-3 sec | Coverage area 95% |
| Withstand soldering temp | IEC60068-2-20 | Tin pot temperature: 2605, insert depth from body 6mm, time 10 1 seconds | |R25/R25|25% |
| Steady humidity and heat | IEC60068-2-78 | Temperature: 402, Humidity: 932%, Time: 1000 hrs | |R25/R25|25% |
| Rapid changes in temperature | IEC60068-2-14 | -40 30min25 5min200 30min25 5min, 5 cycles | |R25/R25|25% |
| High temperature storage | IEC60068-2-2 | Temperature: 2005, Time: 1000 hrs | |R25/R25|25% |
| Durability for max steady current | IEC60539-1 | Sustained max steady current at ambient temperature for 100024h | |R25/R25|25% |
| Max capacity volume durability | IEC60539-1 | 1000 cycles (Max capacity value, intermittent switch 50ms, cut 5 times thermal time constant as one cycle) | |R25/R25|25% |
Note: After steady-state humid heat and rapid temperature change tests, samples require 2 hours at room temperature before performance testing. After high-temperature storage, samples require natural recovery to room temperature before performance testing.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...
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