P3100EARP2 Equivalent & Substitute Parts

Part Overview

The P3100EARP2 is a 275V off-state, 150A peak pulse TVS thyristor manufactured by Littelfuse Inc. in the SIDACtor® series. This component is designed for transient voltage suppression applications requiring through-hole mounting in TO-226-2 and TO-92-2 package configurations. The P3100EARP2 is classified as obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

P3100EARP2

Littelfuse Inc.In Stock: 828P3100EARP2 Datasheet

Current PartRFQ

P3100EALRP2

Littelfuse Inc.In Stock: 1003P3100EALRP2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P3100EARP2 is determined by electrical and mechanical parameter equivalence within the SIDACtor® TVS thyristor product line. The following parameters establish substitution validity:

Electrical parameters: Voltage breakover (350V), off-state voltage (275V), on-state voltage (4V), peak pulse current ratings (150A at 8/20µs and 45A at 10/1000µs), hold current (150mA), and capacitance (35pF) must remain identical.

Mechanical parameters: Package type (TO-226-2, TO-92-2), mounting configuration (through hole), and number of elements (1) must match.

Manufacturing and compliance parameters: Parts must originate from Littelfuse Inc. and maintain compatibility with the base product number P3100.

Parameter Comparison

Engineering Selection Recommendations

The P3100EALRP2 is the direct electrical and mechanical equivalent of the P3100EARP2. Both components share identical electrical specifications across all voltage and current parameters, capacitance ratings, and package configurations. The primary distinction is product status and compliance certification.

The P3100EARP2 is obsolete, whereas the P3100EALRP2 maintains active product status with current manufacturing support. The P3100EALRP2 is ROHS3 compliant, meeting current environmental and regulatory requirements. The P3100EARP2 is RoHS non-compliant.

For new designs and production applications, the P3100EALRP2 is the appropriate selection. For legacy system maintenance where original component specifications must be preserved, the P3100EARP2 remains functionally equivalent if inventory is available. Packaging differs between the two parts: P3100EARP2 is supplied in tube packaging, while P3100EALRP2 is supplied in tape and reel format.

Frequently Asked Questions (FAQ)

Q: Can the P3100EALRP2 replace the P3100EARP2 in existing designs?

A: Yes. The P3100EALRP2 is electrically and mechanically identical to the P3100EARP2. All voltage ratings, current specifications, capacitance, and package configurations are equivalent. The components are directly interchangeable.

Q: What is the difference between the P3100EARP2 and P3100EALRP2?

A: The electrical and mechanical specifications are identical. The differences are product status (obsolete versus active), RoHS compliance (non-compliant versus ROHS3 compliant), and packaging format (tube versus tape and reel).

Q: Why is the P3100EARP2 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support for this specific part number. The P3100EALRP2 is the active equivalent that replaces it in the product line.

Q: Are there any compatibility concerns when substituting the P3100EALRP2 for the P3100EARP2?

A: No compatibility concerns exist. Both components are manufactured by Littelfuse Inc., belong to the same SIDACtor® series, and share identical electrical parameters and package specifications. Substitution is direct.

Q: Does the packaging difference (tube versus tape and reel) affect component performance?

A: No. Packaging format affects handling, storage, and automated assembly processes but does not affect electrical performance or functional characteristics. Both packaging formats contain the same component.

Q: Is the P3100EALRP2 suitable for new product designs?

A: Yes. The P3100EALRP2 is active product status with ROHS3 compliance, making it the appropriate choice for new designs requiring a 275V off-state, 150A peak pulse TVS thyristor in TO-226-2 or TO-92-2 package configuration.