P4202AARP Equivalent & Substitute Parts

Part Overview

The P4202AARP is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc. as part of the SIDACtor® series. This component is designed for overvoltage protection applications, featuring dual-element configuration with 190V/380V off-state voltage ratings and 150A peak pulse current capability in a 3-SIP TO-220 Modified package. The P4202AARP is classified as obsolete, making identification of equivalent substitute parts essential for ongoing system support and component procurement.

Substiute Parts

P4202AARP

Littelfuse Inc.In Stock: 980P4202AARP Datasheet

Current PartRFQ

P4202AALRP

Littelfuse Inc.In Stock: 918P4202AALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P4202AARP is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage ratings (Breakover, Off-State, and On-State) must be identical
• Peak pulse current specifications (8/20µs and 10/1000µs) must match
• Hold current (Ih) must be equivalent
• Number of elements must remain constant at 2
• Capacitance values must be within the specified range
• Physical package configuration (3-SIP, TO-220 Modified) must be maintained
• Through-hole mounting type must be preserved

The P4202AALRP meets all these criteria and is identified as a direct substitute. The primary distinction between these parts is packaging format and product status, not electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

The P4202AALRP is the direct equivalent substitute for the obsolete P4202AARP. Both components share identical electrical specifications and mechanical configuration. The P4202AALRP is currently in active production status, ensuring long-term availability and supply chain continuity.

Key distinctions for component selection:

• The P4202AALRP is supplied in Tape & Reel (TR) packaging format, whereas the P4202AARP packaging format is not specified
• The P4202AALRP is ROHS3 compliant and REACH unaffected, providing regulatory compliance advantages for new designs and procurement
• The P4202AARP is classified as RoHS non-compliant, reflecting its obsolete status

For applications requiring regulatory compliance or long-term component availability, the P4202AALRP is the appropriate selection. Both parts are functionally interchangeable at the circuit level due to identical electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can the P4202AALRP directly replace the P4202AARP in existing designs?

A: Yes. The P4202AALRP is electrically and mechanically equivalent to the P4202AARP. All voltage ratings, current specifications, hold current, element count, capacitance values, and physical package configuration are identical. Direct substitution is possible without circuit modification.

Q: What is the primary difference between these two parts?

A: The P4202AALRP is the active production equivalent of the obsolete P4202AARP. The main differences are product status (Active vs. Obsolete), packaging format (Tape & Reel vs. unspecified), and regulatory compliance (ROHS3 Compliant vs. RoHS non-compliant).

Q: Are there any package or mounting considerations when substituting?

A: Both parts use identical 3-SIP TO-220 Modified packages with through-hole mounting. No PCB layout or mounting modifications are required. The P4202AALRP may be supplied in Tape & Reel format, which affects handling and assembly processes but not electrical performance or physical fit.

Q: Does the P4202AALRP meet current regulatory requirements?

A: Yes. The P4202AALRP is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. The obsolete P4202AARP does not carry these certifications.

Q: What is the inventory status of these parts?

A: The P4202AARP has 873 pieces in stock (new original). The P4202AALRP has 825 pieces in stock (new original). Both are available for immediate procurement.