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                                                                                                  1. Home
                                                                                                  2. Sensors & Transducers
                                                                                                  3. Sensors
                                                                                                  4. Temperature Sensors & Transducers
                                                                                                  5. Thermistors
                                                                                                  6. NTC Thermistors
                                                                                                  Print Page

                                                                                                  B57703M0502G040

                                                                                                  Thermistor, NTC, 5 kohm, B57703M Series, 3988 K, Through Hole, Wire Leaded

                                                                                                  EPCOS
                                                                                                  Image is for illustrative purposes only. Please refer to product description.
                                                                                                  EPCOS B57703M0502G040
                                                                                                  ManufacturerEPCOS
                                                                                                  Manufacturer Part NoB57703M0502G040
                                                                                                  Order Code1200455
                                                                                                  Product RangeB57703M Series
                                                                                                  Your Part Number
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  See all Technical Docs
                                                                                                  3,990 In Stock

                                                                                                  Need more?

                                                                                                  3990 Delivery in 3-4 Business Days(UK stock)
                                                                                                  QuantityPrice
                                                                                                  1+HK$31.660
                                                                                                  10+HK$27.110
                                                                                                  25+HK$25.630
                                                                                                  50+HK$24.630
                                                                                                  100+HK$24.550
                                                                                                  250+HK$24.460
                                                                                                  Price for:Each
                                                                                                  Minimum: 1
                                                                                                  Multiple: 1
                                                                                                  HK$31.66
                                                                                                  Line Note
                                                                                                  Added to your Order Confirmation, Invoice, and Dispatch note for this order only.

                                                                                                  Product Information

                                                                                                  EPCOS
                                                                                                  ManufacturerEPCOS
                                                                                                  Manufacturer Part NoB57703M0502G040
                                                                                                  Order Code1200455
                                                                                                  Product RangeB57703M Series
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  Thermistor TypeNTC
                                                                                                  Resistance (25°C)5kohm
                                                                                                  Thermistor MountingThrough Hole
                                                                                                  Resistance Tolerance (25°C)± 2%
                                                                                                  Product RangeB57703M Series
                                                                                                  NTC MountingFree Hanging
                                                                                                  Thermistor TerminalsWire Leaded
                                                                                                  B-Constant3988K
                                                                                                  B-Constant Tolerance± 1%
                                                                                                  NTC Case Size-
                                                                                                  Thermal Time Constant (in Air)-
                                                                                                  Probe Material-
                                                                                                  Probe Diameter-
                                                                                                  Lead Length45mm
                                                                                                  Operating Temperature Min-55°C
                                                                                                  Operating Temperature Max125°C
                                                                                                  Qualification-
                                                                                                  SVHCLead (25-Jun-2025)

                                                                                                  Product Overview

                                                                                                  The B57703M0502G040 is a 2-pin NTC Thermistor encapsulated in metal-tag case, with 30AWG PTFE-insulated leads of silver-plated nickel wire or 26AWG (stranded, 7 x 34AWG), PTFE-insulated leads of silver-plated copper wire. This B57703M series through hole mounting thermistor features good thermal coupling through metal tag. A lead (wire) may be bent at a minimum distance of twice the wire's diameter plus 4mm from the component head or housing. When bending ensure the wire is mechanically relieved at the component head or housing. Twisting (torsion) by 180° of a lead bent by 90° is permissible at 6mm from the bottom of the thermistor body. Soldering can use resin-type flux or non-activated flux. The soldering due to insufficient preheating may cause ceramic cracks. Suitable for surface temperature measurement (e.g. on housings and heat sinks).

                                                                                                  • Bending radius should be at least 0.75mm
                                                                                                  • High accuracy and easy mounting
                                                                                                  • 150mW Maximum power

                                                                                                  Applications

                                                                                                  Test & Measurement

                                                                                                  Warnings

                                                                                                  Do not store thermistors where they are exposed to heat or direct sunlight. Avoid contamination of thermistor surface during storage, handling and processing. Do not touch components with bare hands.

                                                                                                  Notes

                                                                                                  Contact of NTC thermistors with any liquids and solvents shall be prevented. It must be ensured that no water enters the NTC thermistors (e.g. through plug terminals). Gloves are recommended.

                                                                                                  Technical Specifications

                                                                                                  Thermistor Type

                                                                                                  NTC

                                                                                                  Thermistor Mounting

                                                                                                  Through Hole

                                                                                                  Product Range

                                                                                                  B57703M Series

                                                                                                  Thermistor Terminals

                                                                                                  Wire Leaded

                                                                                                  B-Constant Tolerance

                                                                                                  ± 1%

                                                                                                  Thermal Time Constant (in Air)

                                                                                                  -

                                                                                                  Probe Diameter

                                                                                                  -

                                                                                                  Operating Temperature Min

                                                                                                  -55°C

                                                                                                  Qualification

                                                                                                  -

                                                                                                  Resistance (25°C)

                                                                                                  5kohm

                                                                                                  Resistance Tolerance (25°C)

                                                                                                  ± 2%

                                                                                                  NTC Mounting

                                                                                                  Free Hanging

                                                                                                  B-Constant

                                                                                                  3988K

                                                                                                  NTC Case Size

                                                                                                  -

                                                                                                  Probe Material

                                                                                                  -

                                                                                                  Lead Length

                                                                                                  45mm

                                                                                                  Operating Temperature Max

                                                                                                  125°C

                                                                                                  SVHC

                                                                                                  Lead (25-Jun-2025)

                                                                                                  Technical Docs (2)

                                                                                                  Product Change Notice EN

                                                                                                  Technical Data Sheet EN

                                                                                                  Legislation and Environmental

                                                                                                  Country of Origin:
                                                                                                  Country in which last significant manufacturing process was carried outCountry of Origin:
                                                                                                  Austria
                                                                                                  Country in which last significant manufacturing process was carried out
                                                                                                  Tariff No:85334010
                                                                                                  US ECCN:EAR99
                                                                                                  EU ECCN:NLR
                                                                                                  RoHS Compliant:Y-Ex

                                                                                                  RoHS

                                                                                                  RoHS Phthalates Compliant:Yes

                                                                                                  RoHS

                                                                                                  SVHC:Lead (25-Jun-2025)
                                                                                                  Download Product Compliance Certificate

                                                                                                  Product Compliance Certificate

                                                                                                  Weight (kg):.000753
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