Littelfuse 0FCB020.X Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0FCB020.X is a 20A 12VDC automatic reset circuit breaker in holder mounting configuration. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and component procurement. The part operates as a single-pole automatic reset protection device suitable for 12V DC applications requiring 20A current protection.

Substiute Parts

0FCB020.X

LittelfuseIn Stock: 7010FCB020.X Datasheet

Current PartRFQ

1160-02-20A

E-T-AIn Stock: 7671160-02-20A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Littelfuse 0FCB020.X is determined by the following critical electrical and mechanical parameters:

• Current Rating: 20A (exact match required)
• Voltage Rating: 12V DC (exact match required)
• Mounting Type: Holder configuration (exact match required)
• Number of Poles: Single pole (exact match required)
• Actuator Type: Automatic Reset (exact match required)
• RoHS Compliance: ROHS3 Compliant (maintained)

The E-T-A 1160-02-20A meets all substitution criteria. While the E-T-A part specifies a thermal breaker type compared to the unspecified breaker type of the original Littelfuse component, both parts share identical electrical ratings, mounting configuration, and automatic reset functionality. Both components are ROHS3 compliant and carry the same HTSUS classification (8536.20.0020), confirming functional equivalence for 12V DC 20A protection applications.

Parameter Comparison

Engineering Selection Recommendations

The E-T-A 1160-02-20A is a direct functional equivalent for the obsolete Littelfuse 0FCB020.X. Selection of the E-T-A substitute is supported by:

• Identical electrical specifications: 20A current rating and 12V DC voltage rating
• Matching mechanical configuration: Single-pole holder-mounted automatic reset breaker
• Active product status: The E-T-A 1160-02-20A remains in active production, ensuring long-term availability and supply chain continuity
• Equivalent compliance: Both components maintain ROHS3 compliance and share identical HTSUS and ECCN classifications
• Packaging availability: The E-T-A part is available in bulk packaging with confirmed inventory

Frequently Asked Questions (FAQ)

Q: Can the E-T-A 1160-02-20A be used as a direct replacement for the Littelfuse 0FCB020.X?

A: Yes. Both components share identical electrical ratings (20A, 12V DC), mounting configuration (holder), pole count (1), and actuator type (automatic reset). The parts are mechanically and electrically interchangeable for 12V DC 20A protection applications.

Q: What is the significance of the "thermal" breaker type designation on the E-T-A part?

A: The E-T-A 1160-02-20A specifies thermal as the breaker type, indicating the protection mechanism. The original Littelfuse part does not specify breaker type in the provided data. Both parts function as automatic reset circuit breakers with identical electrical performance for the specified 20A and 12V DC ratings.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the Littelfuse 0FCB020.X and E-T-A 1160-02-20A are ROHS3 compliant, carry the same HTSUS classification (8536.20.0020), and share the same ECCN designation (EAR99).

Q: Why should I consider the E-T-A substitute if the original part is available?

A: The Littelfuse 0FCB020.X is classified as obsolete. The E-T-A 1160-02-20A is in active production status, providing assured long-term availability and supply chain reliability for new designs and ongoing system support.

Q: Does packaging affect the substitution decision?

A: The E-T-A 1160-02-20A is supplied in bulk packaging. If specific packaging requirements exist for your application, confirm packaging compatibility with your procurement process. The electrical and mechanical specifications remain identical regardless of packaging format.