P1402AC Equivalent & Substitute Parts

Part Overview

The P1402AC is a SIDACtor® thyristor transient voltage suppressor manufactured by Littelfuse, designed for overvoltage protection applications requiring 58V/116V off-state voltage ratings with 400A peak pulse current capability. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The P1402AC operates in a 3-SIP through-hole package configuration with dual-element architecture suitable for AC line protection circuits.

Substiute Parts

P1402AC

LittelfuseIn Stock: 931P1402AC Datasheet

Current PartRFQ

P1402ACL

Littelfuse Inc.In Stock: 1158P1402ACL Datasheet

DirectRFQ

P1402ACLRP

LittelfuseIn Stock: 871P1402ACLRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P1402AC is determined by strict equivalence across electrical and mechanical parameters. The following criteria establish valid substitutes:

• Voltage ratings must match exactly: 58V/116V off-state and 77V/154V breakover
• Peak pulse current specifications must be identical: 400A (8/20µs) and 100A (10/1000µs)
• Hold current must equal 150mA
• Capacitance values must match: 90pF and 155pF
• Package configuration must remain 3-SIP with TO-220 Modified supplier package
• Mounting type must be through-hole

The substitute parts P1402ACL and P1402ACLRP meet all electrical and mechanical equivalence criteria. The distinction between these substitutes lies in packaging format (bulk versus tape & reel) and product status (active versus obsolete), not in functional performance.

Parameter Comparison

Engineering Selection Recommendations

P1402ACL is the primary substitute for P1402AC applications. Both parts are electrically and mechanically identical, with P1402ACL offering the advantage of active product status and ROHS3 compliance. The bulk packaging format of P1402ACL suits applications requiring standard component quantities without automated assembly constraints.

P1402ACLRP serves as an alternative substitute when tape & reel packaging is required for high-volume automated assembly operations. This variant maintains identical electrical specifications and compliance certifications while providing the logistical benefits of reel-based component handling.

Both substitutes eliminate the obsolescence risk associated with P1402AC while maintaining full functional compatibility in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can P1402ACL or P1402ACLRP be used as direct replacements for P1402AC in existing designs?

A: Yes. Both substitutes are electrically and mechanically equivalent to P1402AC across all specified parameters including voltage ratings, current ratings, capacitance, and package configuration. No circuit redesign is required.

Q: What is the difference between P1402ACL and P1402ACLRP?

A: The electrical and mechanical specifications are identical. The difference is packaging format: P1402ACL is supplied in bulk packaging, while P1402ACLRP is supplied in tape & reel format. Selection depends on assembly method and procurement volume requirements.

Q: Why is P1402AC listed as obsolete?

A: P1402AC has been superseded by active product variants. P1402ACL and P1402ACLRP are the current production equivalents and should be used for new designs and ongoing procurement.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both P1402ACL and P1402ACLRP are ROHS3 compliant, whereas P1402AC is RoHS non-compliant. This represents an improvement in environmental compliance for substitute selections.

Q: Can these parts be used interchangeably in PCB assembly?

A: P1402ACL (bulk) and P1402ACLRP (tape & reel) are functionally interchangeable. Assembly compatibility depends on whether your manufacturing process uses manual or automated component placement. Tape & reel format (P1402ACLRP) is required for automated pick-and-place systems.