Littelfuse P1104UATP Equivalent & Substitute Parts

Part Overview

The Littelfuse P1104UATP is a 90V/180V off-state, 150A peak pulse TVS thyristor in a 6-SMD gull wing package, part of the SIDACtor® series. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement continuity. The substitute part maintains identical electrical and mechanical specifications while offering improved product status and compliance certifications.

Substiute Parts

P1104UATP

LittelfuseIn Stock: 753P1104UATP Datasheet

Current PartRFQ

P1104UALTP

LittelfuseIn Stock: 757P1104UALTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The P1104UALTP qualifies as a direct substitute for the P1104UATP based on the following criteria:

Electrical Parameters Match:

• Voltage - Breakover: 130V, 260V (identical)
• Voltage - Off State: 90V, 180V (identical)
• Voltage - On State: 4 V (identical)
• Current - Peak Pulse (8/20µs): 150 A (identical)
• Current - Peak Pulse (10/1000µs): 45 A (identical)
• Current - Hold (Ih): 150 mA (identical)
• Number of Elements: 4 (identical)
• Capacitance: 30pF, 50pF (identical)

Mechanical Parameters Match:

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

The primary distinction is product status and compliance certification, not functional or physical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The P1104UALTP is the appropriate selection for new designs and procurement due to its active product status and ROHS3 compliance certification. The P1104UATP, classified as obsolete, presents supply chain risk and does not meet current RoHS requirements. Both parts are electrically and mechanically identical, ensuring direct substitution without circuit redesign. The P1104UALTP is supplied in tube packaging, which is standard for active production inventory.

Frequently Asked Questions (FAQ)

Q: Can the P1104UALTP directly replace the P1104UATP in existing designs?

A: Yes. All electrical parameters (voltage ratings, current ratings, on-state voltage, hold current) and mechanical specifications (package type, mounting configuration, pin count) are identical between the two parts.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and compliance certification. The P1104UATP is obsolete and RoHS non-compliant, while the P1104UALTP is active and ROHS3 compliant. Electrical and mechanical characteristics are unchanged.

Q: Are there packaging differences between P1104UATP and P1104UALTP?

A: Both parts use the same 6-SMD gull wing package (Modified MS-013). The P1104UALTP is supplied in tube packaging as standard for active inventory.

Q: What compliance certifications apply to the P1104UALTP?

A: The P1104UALTP is ROHS3 compliant and REACH unaffected. The ECCN classification is EAR99 for both parts.

Q: Is the moisture sensitivity level the same for both parts?

A: Yes. Both the P1104UATP and P1104UALTP have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions.