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Product Detailed Parameters
- Description：ICL 120 OHM 20% 1.5A 11.5MM
- Series：S236
- Mfr：EPCOS - TDK Electronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- R @ 25°C：120 Ohms
- Tolerance：±20%
- Current - Steady State Max：1.5 A
- R @ Current：990 mOhms
- Diameter：0.453" (11.50mm)
- Lead Spacing：0.295" (7.50mm)
- Grade：-
- Qualification：-
- Approval Agency：CQC, UL, VDE
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Overview
The B57236S0121M051 is a leaded and coated NTC thermistor from the S236 series, designed for inrush current limiting. It features a disk package with radial leads and through-hole mounting. The resistance at 25°C is 120 Ohms with a tolerance of ±20%. The component has a maximum steady-state current rating of 3.2 A and a power dissipation of 2.1 W. It operates within a temperature range of -55°C to 170°C and includes UL certification.
Feature Summary
- Provides effective inrush current limiting in electronic circuits
- Utilizes leaded and coated disk construction for robustness
- Supports through-hole mounting for standard PCB integration
Applications
- Inrush current limiting in power supplies
- Voltage suppression in AC/DC converters
- Noise suppression in control engineering
Procurement Notes
Verify the specific suffix M051 against official TDK documentation to confirm tape and reel packaging specifications. Ensure the 120 Ohm resistance value matches the design requirements for the target circuit application. Confirm compliance with RoHS and REACH regulations as stated in the manufacturer's datasheet.
Selection Notes
Select this component when a 120 Ohm initial resistance is required for inrush current management. Consider the 3.2 A steady-state current limit and 2.1 W power rating for thermal compatibility. The radial leaded format is suitable for applications requiring through-hole assembly rather than surface mount alternatives.
Part Context
This part belongs to the EPCOS (TDK) B57236S series of NTC thermistors. These components are specifically engineered for surge current limitation and voltage suppression. The S236 designation indicates the specific physical dimensions and coating type used for this family of devices.
Replacement Considerations
Direct substitutes include other parts within the B57236S series with matching 120 Ohm resistance, such as variants with different packaging suffixes. Cross-reference with generic NTC inrush limiters only if electrical parameters like R25 and I_max are identical.
