P5103AB Equivalent & Substitute Parts

Part Overview

The P5103AB is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc. under the SIDACtor® series. This component is rated for 420V off-state voltage with 250A peak pulse current capability in a 3-SIP through-hole package. The P5103AB is currently classified as obsolete, making identification of equivalent substitute parts essential for ongoing system support and component procurement.

Substiute Parts

P5103AB

Littelfuse Inc.In Stock: 1127P5103AB Datasheet

Current PartRFQ

P5103ABL

Littelfuse Inc.In Stock: 2210P5103ABL Datasheet

DirectRFQ

P5103ABLRP

Littelfuse Inc.In Stock: 822P5103ABLRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P5103AB is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute parts P5103ABL and P5103ABLRP maintain identical specifications for voltage ratings (600V breakover, 420V off-state, 8V on-state), current handling (250A peak pulse at 8/20µs, 80A at 10/1000µs, 150mA hold current), element count (3), capacitance values (40pF, 60pF), and package configuration (3-SIP, TO-220 Modified through-hole mounting).

The key parameters determining substitution eligibility are:

• Voltage - Breakover: 600V
• Voltage - Off State: 420V
• Voltage - On State: 8V
• Current - Peak Pulse (8/20µs): 250A
• Current - Peak Pulse (10/1000µs): 80A
• Current - Hold (Ih): 150mA
• Number of Elements: 3
• Package / Case: 3-SIP
• Mounting Type: Through Hole

Parameter Comparison

Engineering Selection Recommendations

Both P5103ABL and P5103ABLRP are direct electrical and mechanical equivalents to the obsolete P5103AB. Both substitute parts are classified as Active products, ensuring long-term availability and supply chain continuity.

P5103ABL is supplied in bulk packaging and is suitable for applications requiring standard component procurement. P5103ABLRP is supplied in Tape & Reel format, appropriate for automated assembly processes and high-volume manufacturing environments.

Both substitute parts are ROHS3 compliant and REACH unaffected, providing improved environmental and regulatory compliance compared to the original P5103AB, which is RoHS non-compliant. Selection between P5103ABL and P5103ABLRP should be based on packaging requirements and assembly methodology rather than electrical performance, as both parts are electrically and mechanically identical.

Frequently Asked Questions (FAQ)

Q: Can P5103ABL or P5103ABLRP be used as direct replacements for P5103AB? A: Yes. Both parts are electrically and mechanically equivalent, with identical voltage ratings, current specifications, element count, and 3-SIP package configuration. Direct substitution is supported without circuit modification.

Q: What is the difference between P5103ABL and P5103ABLRP? A: The primary difference is packaging format. P5103ABL is supplied in bulk packaging, while P5103ABLRP is supplied in Tape & Reel format. Electrical and mechanical specifications are identical. Selection depends on assembly process requirements.

Q: Why is the original P5103AB classified as obsolete? A: The P5103AB is no longer in active production. P5103ABL and P5103ABLRP are the current active equivalents from Littelfuse Inc. and should be used for new designs and ongoing component procurement.

Q: Are there compliance differences between the substitute parts and the original? A: Yes. P5103ABL and P5103ABLRP are ROHS3 compliant and REACH unaffected, while P5103AB is RoHS non-compliant. Both substitute parts offer improved environmental compliance.

Q: Can these parts be used interchangeably in automated assembly? A: P5103ABLRP in Tape & Reel format is optimized for automated pick-and-place assembly. P5103ABL in bulk packaging is suitable for manual or semi-automated assembly. Both are mechanically compatible with 3-SIP through-hole mounting.

Q: What is the moisture sensitivity level for these components? A: All three parts (P5103AB, P5103ABL, P5103ABLRP) have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.