P1402AB Equivalent & Substitute Parts

Part Overview

The P1402AB is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc. in the SIDACtor® series. This component is designed for overvoltage protection applications requiring 58V/116V off-state voltage ratings with 250A peak pulse current capability in a 3-SIP through-hole package. The P1402AB is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

P1402AB

Littelfuse Inc.In Stock: 767P1402AB Datasheet

Current PartRFQ

P1402ABL

Littelfuse Inc.In Stock: 1072P1402ABL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The P1402ABL qualifies as a direct substitute for the P1402AB based on identical electrical and mechanical parameters. Substitution eligibility is determined by the following criteria:

• Voltage ratings (breakover and off-state) must match exactly: 77V/154V breakover and 58V/116V off-state
• Peak pulse current capability must meet or exceed the original specification: 250A (8/20µs) and 80A (10/1000µs)
• On-state voltage and hold current must remain within specification: 4V and 150mA respectively
• Package configuration must be identical: 3-SIP through-hole in TO-220 Modified form factor
• Number of elements and capacitance values must match: 2 elements with 90pF and 155pF ratings

The P1402ABL meets all substitution criteria and is functionally equivalent to the P1402AB.

Parameter Comparison

Engineering Selection Recommendations

The P1402ABL is the appropriate substitute for the P1402AB in all applications requiring equivalent electrical and mechanical performance. The P1402ABL maintains identical voltage ratings, current specifications, and package configuration while offering the advantage of active product status and ROHS3 compliance. The transition from the obsolete P1402AB to the P1402ABL eliminates supply chain risk and aligns with current regulatory requirements for electronic components.

Frequently Asked Questions (FAQ)

Q: Can the P1402ABL be used as a direct replacement for the P1402AB in existing designs?

A: Yes. The P1402ABL is electrically and mechanically identical to the P1402AB. All voltage ratings, current specifications, and package dimensions are equivalent, enabling direct substitution without circuit modification.

Q: What is the primary difference between the P1402AB and P1402ABL?

A: The P1402ABL is the active production variant of the P1402AB series. The P1402AB is obsolete, while the P1402ABL maintains full manufacturing support. Additionally, the P1402ABL is ROHS3 compliant, whereas the P1402AB is RoHS non-compliant.

Q: Are there any packaging differences between these parts?

A: No. Both the P1402AB and P1402ABL use identical 3-SIP through-hole packaging in TO-220 Modified form factor. PCB layout and mounting procedures remain unchanged.

Q: What parameters must match for a TVS thyristor to qualify as a substitute?

A: Critical parameters include voltage ratings (breakover and off-state), peak pulse current capability, on-state voltage, hold current, number of elements, capacitance values, and package configuration. All must match the original specification exactly.

Q: Is the P1402ABL suitable for new product designs?

A: Yes. The P1402ABL is the recommended choice for new designs requiring this voltage and current rating. Its active status and regulatory compliance provide long-term supply assurance.