P2103AARP Equivalent & Substitute Parts

Part Overview

The P2103AARP is a 170V 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 three-element configuration in a TO-220 Modified package. The P2103AARP is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

P2103AARP

Littelfuse Inc.In Stock: 881P2103AARP Datasheet

Current PartRFQ

P2103AAL

Littelfuse Inc.In Stock: 5399P2103AAL Datasheet

DirectRFQ

P2103AALRP

Littelfuse Inc.In Stock: 788P2103AALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P2103AARP is determined by electrical and mechanical parameter equivalence. The following criteria establish valid substitutes:

• Voltage - Breakover: 250V
• Voltage - Off State: 170V
• Voltage - On State: 8V
• Current - Peak Pulse (8/20µs): 150A
• Current - Peak Pulse (10/1000µs): 45A
• Current - Hold (Ih): 150mA
• Number of Elements: 3
• Capacitance: 25pF, 35pF
• Package / Case: 3-SIP
• Mounting Type: Through Hole
• Supplier Device Package: TO-220 Modified

Parts meeting all these parameters are electrically and mechanically interchangeable with the P2103AARP.

Parameter Comparison

Engineering Selection Recommendations

Both P2103AAL and P2103AALRP are active product alternatives to the obsolete P2103AARP. All three parts are electrically and mechanically identical across all specified parameters.

P2103AAL is supplied in bulk packaging and is suitable for applications requiring standard component procurement. P2103AALRP is supplied in Tape & Reel format and is optimized for automated assembly processes.

Both substitute parts carry ROHS3 compliance certification, whereas the P2103AARP is RoHS non-compliant. This compliance improvement may be relevant for applications subject to RoHS regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Are P2103AAL and P2103AALRP electrically identical to P2103AARP?

A: Yes. All three parts share identical electrical specifications: 250V breakover voltage, 170V off-state voltage, 8V on-state voltage, 150A peak pulse current (8/20µs), 45A peak pulse current (10/1000µs), and 150mA hold current.

Q: What is the difference between P2103AAL and P2103AALRP?

A: The primary difference is packaging format. P2103AAL is supplied in bulk packaging, while P2103AALRP is supplied in Tape & Reel format. Both parts are electrically and mechanically identical and can be used interchangeably in circuit designs.

Q: Can I use P2103AAL or P2103AALRP as direct replacements for P2103AARP?

A: Yes. Both parts are direct substitutes with identical electrical and mechanical parameters. The P2103AARP is obsolete; P2103AAL and P2103AALRP are active products from the same manufacturer and series.

Q: Are there any compliance differences between these parts?

A: P2103AAL and P2103AALRP are ROHS3 compliant, while P2103AARP is RoHS non-compliant. Both substitute parts also carry REACH Unaffected status.

Q: Which part should I select for new designs?

A: For new designs, select based on assembly requirements. Use P2103AAL for manual or semi-automated assembly. Use P2103AALRP for fully automated assembly processes requiring tape and reel packaging.