B57238S220M51 EPCOS Inc, B57238S220M51 Datasheet - Page 5

• Manufacturer Part Number: B57238S220M51
• Description: CURRENT LIMITER INRSH 22 OHM 20%
• Manufacturer: EPCOS Inc
• Type: NTCr

Specifications of B57238S220M51

• R @ 25°c: 22 Ohm
• Current - Steady State Max: 4A
• Tolerance: ±20%
• Diameter: 0.629" (16mm)
• Lead Spacing: 0.295" (7.50mm)
• Resistance: 22 Ohms
• Termination Style: Radial
• Operating Temperature Range: - 55 C to + 170 C
• Current Rating: 4 Amps
• Power Rating: 3.9 W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• R @ Current: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: B57238S 220M 51; B57238S0220M051

Operation
Please read Important notes and
Cautions and warnings at the end of this document.
Inrush current limiters
ICLs, insulation voltage 1000 VDC for 1 s
Use thermistors only within the specified operating temperature range.
Use thermistors only within the specified voltage and current ranges (ICLs).
Environmental conditions must not harm the thermistors. Use thermistors only in normal
atmospheric conditions.
Contact of NTC thermistors with any liquids and solvents should be prevented. It must be
ensured that no water enters the NTC thermistor (e.g. through plug terminals). For
measurement purposes (checking the specified resistance vs. temperature), the component
must not be immersed in water but in suitable liquids (e.g. Galden).
Avoid dewing and condensation.
Be sure to provide an appropriate fail-safe function to prevent secondary product damage
caused by malfunction (e.g. use VDR for limitation of overvoltage condition).
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