Dongguan Ampfort Electronics Co., Ltd.
| Payment Terms | T/T, Western Union,Paypal |
| Supply Ability | 5,000,000 Pieces Per Month |
| Delivery Time | 7-10 Workdays |
| Packaging Details | Bulk,500pcs per bag |
| Product Name | Epoxy Coated NTC Thermistor 30K 3950 Temperature Probe Chip |
| R25 | 30KΩ±10% |
| B25/50 | 3950±1% |
| Cable | UL4411# 24AWG×2 |
| Standard | SAEJ-1128 |
| Temperature Range | -20~+125C |
| Head size | 4.5x15mm |
| Cable Length | 300mm |
| Brand Name | AMPFORT |
| Model Number | NSAD0303KC-331X |
| Certification | ROHS,REACH |
| Place of Origin | Dongguan,China |
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Product Specification
| Payment Terms | T/T, Western Union,Paypal | Supply Ability | 5,000,000 Pieces Per Month |
| Delivery Time | 7-10 Workdays | Packaging Details | Bulk,500pcs per bag |
| Product Name | Epoxy Coated NTC Thermistor 30K 3950 Temperature Probe Chip | R25 | 30KΩ±10% |
| B25/50 | 3950±1% | Cable | UL4411# 24AWG×2 |
| Standard | SAEJ-1128 | Temperature Range | -20~+125C |
| Head size | 4.5x15mm | Cable Length | 300mm |
| Brand Name | AMPFORT | Model Number | NSAD0303KC-331X |
| Certification | ROHS,REACH | Place of Origin | Dongguan,China |
| High Light | 30k ohm temperature sensor chip ，15mm temperature sensor chip ，Epoxy Coated ntc 3950 thermistor | ||
Epoxy Coated NTC Thermistor 30K 3950 Temperature Probe Chip For Auto Wire Harness
I Selection Of The Epoxy Coated NTC Thermistor 30K 3950 Temperature Probe Chip
Modifications are available to existing standard product packages, such as adding connectors or changing wire size or length, as well as offering special resistance-temperature (R-T) curves, R-T curve matching, and custom lead forming and bending to discrete thermistors. In addition, the following options and services are available.
II Size Of The Epoxy Coated NTC Thermistor 30K 3950 Temperature Probe Chip (Unit:mm)
III Material Lists Of The Epoxy Coated NTC Thermistor 30K 3950 Temperature Probe Chip
| NO | Material Name | Item/PN |
| 2-1. | Element | R25=30KΩ±10% B25/50=3950±1% |
| 2-2. | Coating | Epoxy Resin (Black) |
| 2-3. | Lead Wire | UL4411# 24AWG×2C 7*0.20mm 125℃ 300V (Yellow) Diameter:1.4±0.05 * 2.9±0.1mm Meet SAEJ-1128
|
| NO | Item | Sign | Test Conditions | Min. | Normal value | Max. | Unit |
| 4-1. | Resistance at 25℃ | R25 | Ta=25±0.05℃ PT≦0.1mw | 27.0 | 30.0 | 33.0 | kΩ |
| 4-2. | B Value | B25/50 | 3910.5 | 3950 | 3989.5 | k | |
| 4-3. | Dissipation factor | σ | Ta=25±0.5℃ In still air | ≧2 | mw/℃ | ||
| 4-4. | Time constant | τ | Ta=25±0.5℃ In still air | ≦7 | sec | ||
| 4-5. | Operating temp.range | / | / | -20 | / | +125 | ℃ |
| 4-6 | Insulation resistance | / | 100V DC | 100 | / | / | MΩ |
| 4-7. | Withstand voltage test | / | 200V AC | 5 | / | / | Sec |
V Reliability Of The Epoxy Coated NTC Thermistor 30K 3950 Temperature Probe Chip
| NO | Item | Technical requirements | Test conditions and method |
| 5-1. | High temp. Test | DR/R25£±3%
DB/B£±3%
No change with withstand voltage, Insalution performance. Appearance without damage. | 100±5℃,power on 500±24 hrs,DC0.2mA |
| 5-2. | Low temp. tes | -20±5℃,power on 500±24 hrs,DC0.2mA | |
| 5-3. | Endure moisture test | Store in environment 55±2℃,90%-95%RH for 500±24 hrs | |
| 5-4. | Temp. cycle test | –20℃×30min→Room temp.×10min→ in 100℃ water×30min→Room temp.×10min 10 cycles | |
| 5-5 | Load electrify test | Power on DC1mA, 500hrs in room temp. and humid. | |
| 5-6 | Drop test | Free fall into concrete floor from height 1M ,10 cycle. | |
| 5-7 | Vibration test | Frequency range:10～55HZ Total amplitude 1.52mm 1 cycle 1 min ,direction and time X,Y,Z axs 2Hr each. | |
| 5-8 | Bending test | Bend 180°binding site wire and epoxy resin.Back and forth 10 times | |
| 5-9 | Tensile tests | Put 2 kg of force lasts 1 min |
VI Fundamentals Of The Epoxy Coated NTC Thermistor 30K 3950 Temperature Probe Chip
Each temperature sensor style has its own set of operating principles, features, benefits, considerations,
and limitations for optimal use.
Thermistors (NTCs and PTCs): Thermistors are thermally sensitive resistors whose prime function is to
exhibit a large, predictable, and precise change in electrical resistance when subjected to a corresponding
change in body temperature. Negative Temperature Coefficient (NTC) thermistors exhibit a decrease in
electrical resistance when subjected to an increase in body temperature. Positive Temperature Coefficient
(PTC) thermistors exhibit an increase in electrical resistance when subjected to an increase in body temperature.
RTDs: Platinum Resistance Temperature Detectors (Pt-RTDs) are temperature sensors that have a positive,
predictable, and nearly linear change in resistance when subjected to a corresponding change in their body
temperature.
Digital Temperature Indicators: Digital Temperature Indicators have a positive relationship between resistance
and temperature. The response is very much like a digital signal; below the trip temperature, resistance will be
low, above the trip temperature, resistance will be very high. This digital response is ideal for applications where
knowing the temperature has increased beyond a specific value is required. With the digital response, no analog
to digital conversion is necessary, allowing designers to save time and space.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Exporter
Year Established:
2014
Total Annual:
1850000-2340000
Employee Number:
51~200
Ecer Certification：
Verified Supplier
Dongguan Ampfort Electronics Co., Ltd. is a high-tech enterprise specializing in R&D, manufacturing and sales, committed to becoming a comprehensive supplier of circuit protection components. We introduced advanced quality system,management systems and high-precision automation equipm... Dongguan Ampfort Electronics Co., Ltd. is a high-tech enterprise specializing in R&D, manufacturing and sales, committed to becoming a comprehensive supplier of circuit protection components. We introduced advanced quality system,management systems and high-precision automation equipm...
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