B57236S0479M000

$0.68

Description：ICL 4.7 OHM 20% 7.5A 11.5MM
Series：S236
Mfr：EPCOS - TDK Electronics
Package：Bulk

SKU:bab81666d82a Category: Inrush Current Limiters (ICL) Brand: EPCOS - TDK Electronics

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Product introduction

Product Detailed Parameters

Description：ICL 4.7 OHM 20% 7.5A 11.5MM
Series：S236
Mfr：EPCOS - TDK Electronics
Package：Bulk
R @ 25°C：4.7 Ohms
Tolerance：±20%
Current - Steady State Max：7.5 A
R @ Current：-
Diameter：0.453" (11.50mm)
Lead Spacing：0.295" (7.50mm)
Grade：-
Qualification：-
Approval Agency：-

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B57236S0479M000

Overview

The B57236S0479M000 is a radial leaded NTC thermistor designed for inrush current limiting. It features a nominal resistance of 4.7 Ω at 25°C with a tolerance of ±20%. The component has a maximum rated power dissipation of 2.1 W and withstands AC voltages up to 265 V. Operating temperatures range from -55°C to +170°C. Physical dimensions include a disk diameter of 11.5 mm, depth of 6 mm, and height of 16 mm. The thermal time constant is specified at 70 seconds.

Feature Summary

Coated thermistor disk construction
Kinked leads made of tinned copper wire
Suitable for series connections up to 265 VRMS

Applications

Inrush current limiting
High-power motor control cabinets
Power supply input stages

Procurement Notes

Verify the manufacturer part number matches B57236S0479M000 exactly. Confirm the resistance value is 4.7 Ohms and tolerance is 20 percent. Ensure the package type is radial leaded through-hole mount. Check that the operating temperature range covers -55 C to 170 C. Validate compliance with IEC standards if required by the application design specifications.

Selection Notes

Select this component when a low initial resistance of 4.7 Ohms is required to suppress startup currents. The 2.1 W power rating supports moderate energy absorption during switching events. The radial leaded format facilitates standard PCB mounting. Consider the 70-second thermal time constant for recovery requirements between cycles. Ensure the system voltage does not exceed the 265 VAC rating.

Part Context

This part belongs to the B57236S0M0 series of NTC thermistors manufactured by TDK under the EPCOS brand. The series provides coated disk designs for robust environmental protection. These components are engineered specifically for protecting electronic circuits against high surge currents during power-up phases.