P1100SCMC Equivalent & Substitute Parts

Part Overview

The P1100SCMC is a 90V off-state, 400A peak pulse TVS thyristor manufactured by Littelfuse Inc. in the SIDACtor® series, housed in a DO-214AA (SMB) surface mount package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement continuity. The part's primary function is transient voltage suppression in electronic circuits requiring high current pulse handling capability.

Substiute Parts

P1100SCMC

Littelfuse Inc.In Stock: 867P1100SCMC Datasheet

Current PartRFQ

P1100SCMCLRP

LittelfuseIn Stock: 1257P1100SCMCLRP Datasheet

DirectRFQ

SMP100LC-90

STMicroelectronicsIn Stock: 1946SMP100LC-90 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P1100SCMC is determined by electrical and mechanical parameter alignment within the TVS thyristor category. The critical parameters governing substitutability are:

• Voltage - Off State: 90V (primary voltage rating)
• Voltage - Breakover: 130V ±5V tolerance acceptable
• Current - Peak Pulse (8/20µs): 400A (primary current rating)
• Package / Case: DO-214AA, SMB (mechanical compatibility)
• Mounting Type: Surface Mount (assembly compatibility)

Two substitute parts meet these criteria:

P1100SCMCLRP (Littelfuse Inc.) — Direct manufacturer equivalent with identical electrical specifications and active product status. Differs only in packaging format (Tape & Reel) and RoHS compliance level.

SMP100LC-90 (STMicroelectronics) — Manufacturer-recommended substitute from the TRISIL™ series. Meets all critical electrical parameters with minor variations in breakover voltage (125V vs. 130V) and capacitance (80pF vs. 70pF), both within acceptable engineering tolerance for TVS thyristor applications.

Parameter Comparison

Engineering Selection Recommendations

P1100SCMCLRP is the primary substitute for P1100SCMC. It maintains identical electrical and mechanical specifications while offering active product status and ROHS3 compliance. This part is sourced from the same manufacturer and series, ensuring design continuity with minimal risk. Packaging differs only in format (Tape & Reel vs. bulk), which does not affect electrical performance.

SMP100LC-90 serves as an alternative cross-manufacturer substitute. It is manufactured by STMicroelectronics and meets all critical electrical parameters. The breakover voltage variance (125V vs. 130V) and capacitance increase (80pF vs. 70pF) remain within acceptable engineering tolerance for TVS thyristor applications. This part offers active product status and ROHS3 compliance. Selection of this substitute should be based on supply availability, cost considerations, and design margin verification for the specific application circuit.

Both substitutes are actively manufactured and comply with current regulatory standards, addressing the obsolescence status of the original P1100SCMC.

Frequently Asked Questions (FAQ)

Q: Can P1100SCMCLRP be used as a direct replacement for P1100SCMC?

A: Yes. P1100SCMCLRP is electrically and mechanically identical to P1100SCMC. The only differences are packaging format (Tape & Reel) and improved RoHS compliance status. No circuit modifications are required.

Q: What is the difference between P1100SCMCLRP and SMP100LC-90?

A: Both parts share the same 90V off-state voltage, 400A peak pulse current, and DO-214AA package. SMP100LC-90 has a slightly lower breakover voltage (125V vs. 130V) and higher capacitance (80pF vs. 70pF). These differences are within acceptable tolerance for TVS thyristor applications but should be verified for circuits with tight voltage margin requirements.

Q: Are all three parts compatible with the same PCB footprint?

A: Yes. All three parts use the DO-214AA (SMB) surface mount package, ensuring mechanical and footprint compatibility. No PCB redesign is necessary.

Q: Which substitute should I select for new designs?

A: For new designs, either P1100SCMCLRP or SMP100LC-90 is acceptable. P1100SCMCLRP maintains exact electrical specifications and same-manufacturer sourcing. SMP100LC-90 offers cross-manufacturer availability. Selection depends on supply chain strategy, cost, and application-specific margin requirements.

Q: Are there any compliance differences between the substitutes?

A: P1100SCMC is RoHS non-compliant. Both P1100SCMCLRP and SMP100LC-90 are ROHS3 compliant and REACH unaffected. All three parts carry EAR99 export classification and identical HTSUS codes.

Q: What is the moisture sensitivity level for these parts?

A: All three parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.