P2103UATP Equivalent & Substitute Parts

Part Overview

The P2103UATP is a Transient Voltage Suppressor (TVS) thyristor from Littelfuse's SIDACtor® series, designed for overvoltage protection in surface mount applications. This component features a 170V off-state voltage rating with 150A peak pulse current capability in a 6-SMD gull wing package. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure long-term component availability for new production and field replacements.

Substiute Parts

P2103UATP

LittelfuseIn Stock: 697P2103UATP Datasheet

Current PartRFQ

P2103UALTP

Littelfuse Inc.In Stock: 869P2103UALTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P2103UATP is determined by electrical and mechanical parameter equivalence. The following criteria establish direct substitutability:

Electrical Parameters (Critical):

• 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: 55pF, 85pF

Mechanical Parameters (Critical):

• Package / Case: 6-SMD, Gull Wing
• Mounting Type: Surface Mount
• Supplier Device Package: Modified MS-013

The P2103UALTP meets all electrical and mechanical substitution criteria, providing functional equivalence with identical performance characteristics and package compatibility.

Parameter Comparison

Engineering Selection Recommendations

The P2103UALTP is the direct equivalent for the obsolete P2103UATP. Selection of P2103UALTP is based on:

Product Status: P2103UALTP maintains active product status, ensuring continued availability and manufacturer support, whereas P2103UATP is obsolete.

Regulatory Compliance: P2103UALTP is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The original P2103UATP is RoHS non-compliant.

Electrical and Mechanical Equivalence: All critical electrical parameters and mechanical specifications are identical, ensuring direct functional substitution without circuit redesign.

For new designs and production applications, P2103UALTP is the appropriate selection. For existing inventory management or field replacements where P2103UATP is specified, P2103UALTP provides full compatibility.

Frequently Asked Questions (FAQ)

Q: Can P2103UALTP be used as a direct replacement for P2103UATP in existing designs?

A: Yes. P2103UALTP is electrically and mechanically equivalent to P2103UATP. All voltage ratings, current specifications, element count, capacitance values, and package dimensions are identical. No circuit modifications are required.

Q: What is the primary difference between P2103UATP and P2103UALTP?

A: The primary differences are product status and regulatory compliance. P2103UATP is obsolete and RoHS non-compliant. P2103UALTP is active, ROHS3 compliant, and REACH unaffected. Packaging differs: P2103UALTP is supplied in tube format.

Q: Are the 6-SMD gull wing packages identical between both parts?

A: Yes. Both parts use the Modified MS-013 supplier device package with 6-SMD gull wing configuration. PCB footprints and assembly processes are compatible.

Q: Does the tube packaging of P2103UALTP affect compatibility?

A: No. Packaging format (tube versus other formats) does not affect component electrical performance or PCB mounting compatibility. The component itself remains identical.

Q: Why is RoHS3 compliance important for P2103UALTP?

A: ROHS3 compliance ensures the component meets current environmental regulations for hazardous substance restrictions. This is required for products sold in regulated markets and for compliance with customer procurement standards.