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Shenzhen Hwalon Electronic Co., Ltd.

  • China,Shenzhen ,Guangdong
  • Verified Supplier
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China Small Size Surface Mount 50K 3977B 2% Accuracy NTC Thermistor Sensor, Fast
China Small Size Surface Mount 50K 3977B 2% Accuracy NTC Thermistor Sensor, Fast

  1. China Small Size Surface Mount 50K 3977B 2% Accuracy NTC Thermistor Sensor, Fast
  2. China Small Size Surface Mount 50K 3977B 2% Accuracy NTC Thermistor Sensor, Fast
  3. China Small Size Surface Mount 50K 3977B 2% Accuracy NTC Thermistor Sensor, Fast

Small Size Surface Mount 50K 3977B 2% Accuracy NTC Thermistor Sensor, Fast

  1. MOQ: 500pcs
  2. Price: USD 0.012 - 0.2 / PCS
  3. Get Latest Price
Delivery Time 10-15 work days
Feature Fast Thermal Response, High Stability, RoHS Compliant
Packaging Details poly bags + carton box
Payment Terms T/T
Nominal Resistance(25℃) Nominal Resistance(25℃)
Application Field Home Appliance, BMS, HVAC, Industrial Equipment
B-value 3435K / 3950K / 3977K
Supply Ability 1000,000+ PCS/Month
Encapsulation Material Epoxy Resin / Stainless Steel / Silicone
Operating Temperature Range -40℃ ~ 125℃
Model Number NTC
Brand Name Hwalon
Certification CE,UL
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Delivery Time 10-15 work days Feature Fast Thermal Response, High Stability, RoHS Compliant
Packaging Details poly bags + carton box Payment Terms T/T
Nominal Resistance(25℃) Nominal Resistance(25℃) Application Field Home Appliance, BMS, HVAC, Industrial Equipment
B-value 3435K / 3950K / 3977K Supply Ability 1000,000+ PCS/Month
Encapsulation Material Epoxy Resin / Stainless Steel / Silicone Operating Temperature Range -40℃ ~ 125℃
Model Number NTC Brand Name Hwalon
Certification CE,UL Place of Origin China
High Light small size NTC thermistor sensor50K 3977B thermistor for PCBfast thermal response NTC sensor

Product Description

This surface mount NTC thermistor is designed for compact electronic circuits where space is limited and fast temperature sensing is required. It adopts a small SMD chip structure with a 50K Ohm nominal resistance at 25°C and a B-value of 3977K. These parameters make it suitable for temperature compensation, overheat protection and thermal monitoring in power supplies, chargers, LED drivers, industrial PCBs and consumer electronics.

The SMD package allows direct mounting on printed circuit boards using standard reflow soldering processes. Its small size helps save layout space, while the ceramic NTC core provides stable resistance characteristics over a wide temperature range. The device responds quickly to temperature changes, enabling the control system to take protective action before overheating occurs.

This model is particularly useful for circuits that require high integration and reliable thermal monitoring. It can be used for temperature compensation in analog circuits, battery charging protection, power module monitoring and environmental sensing. The chip is compatible with automatic placement equipment and is available in tape and reel packaging for high-volume production.

Product Features

  • 50KΩ nominal resistance at 25°C
  • B-value 3977K with ±2% accuracy
  • Compact surface mount package
  • Fast thermal response
  • Stable resistance performance
  • Low thermal drift
  • Suitable for reflow soldering
  • Tape and reel packaging available
  • Ideal for compact PCB designs

Typical Applications

  • PCB temperature compensation
  • Power supply modules
  • Battery chargers
  • LED drivers
  • Consumer electronics
  • Industrial control boards
  • Overheat protection circuits

Technical Specifications

表格

Item Specification
Model SMD-NTC-503-3977
Nominal Resistance 50KΩ ±2%
B Value (25/85°C) 3977K ±1%
Package 0805 SMD Chip
Mounting Type Surface Mount
Operating Temperature -40°C ~ 125°C
Thermal Time Constant ≤5s
Packaging Tape & Reel
Soldering Reflow Soldering Compatible

Advantages & Selling Points

This SMD NTC thermistor offers a perfect balance of small size, high sensitivity and stable performance. It is especially suitable for modern compact electronic products where traditional leaded sensors cannot be used. The high batch consistency also helps improve production efficiency and reduce system calibration costs.

FAQ

Q1: What does SMD mean? A: SMD means Surface Mount Device, which can be directly mounted on the surface of a PCB without drilling holes.

Q2: Can this be used for battery protection? A: Yes, it can be used for temperature monitoring and overheat protection in battery charging and discharging systems.

Q3: Is it available in tape and reel? A: Yes, we provide tape and reel packaging to support automatic SMT assembly.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2010

  • Total Annual:

    2000000-5000000

  • Employee Number:

    301~500

  • Ecer Certification:

    Verified Supplier

Company Overview: Established in 2010 and located in Bao’an District, Shenzhen, Hwalon Electronic Co., Ltd. is a professional manufacturer dedicated to the R&D, customized production and global sales of passive electronic components. With over 20 years of industry experience, we... Company Overview: Established in 2010 and located in Bao’an District, Shenzhen, Hwalon Electronic Co., Ltd. is a professional manufacturer dedicated to the R&D, customized production and global sales of passive electronic components. With over 20 years of industry experience, we...

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Get in touch with us

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  • Shenzhen Hwalon Electronic Co., Ltd.
  • Area 3, block B, huafeng huayuan science&technology innovation park, bao'an district, shenzhen, guangdong, china
  • https://www.ptcthermistorheater.com/

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