P1100SCRP Equivalent & Substitute Parts

Part Overview

The P1100SCRP is a 90V off-state, 400A peak pulse TVS thyristor manufactured by Littelfuse Inc. in the DO-214AA (SMB) package. This component is part of the SIDACtor® series and is classified as obsolete. Due to its obsolete status, equivalent substitute parts with active product status are necessary for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility across voltage ratings, current handling, and package specifications.

Substiute Parts

P1100SCRP

Littelfuse Inc.In Stock: 18172P1100SCRP Datasheet

Current PartRFQ

P1100SCLRP

Littelfuse Inc.In Stock: 2762P1100SCLRP Datasheet

DirectRFQ

SMP100LC-90

STMicroelectronicsIn Stock: 1946SMP100LC-90 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P1100SCRP is determined by strict equivalence across the following critical parameters:

• Voltage - Off State: 90V (exact match required)
• Voltage - Breakover: 130V ±5V tolerance acceptable
• Current - Peak Pulse (8/20µs): 400A (exact match required)
• Current - Peak Pulse (10/1000µs): 100A (exact match required)
• Current - Hold (Ih): 150mA (exact match required)
• Package / Case: DO-214AA, SMB (exact match required)
• Mounting Type: Surface Mount (exact match required)

Two substitute parts meet these criteria: P1100SCLRP (Littelfuse Inc., direct equivalent with active status) and SMP100LC-90 (STMicroelectronics, manufacturer-recommended alternative with minor parameter variations within acceptable ranges).

Parameter Comparison

Engineering Selection Recommendations

P1100SCLRP is the primary substitute for P1100SCRP. It is manufactured by Littelfuse Inc. and maintains identical electrical specifications across all critical parameters. The part has active product status and is ROHS3 compliant, addressing regulatory requirements that the obsolete P1100SCRP does not meet. This part is available in Cut Tape and Digi-Reel packaging options.

SMP100LC-90 is a manufacturer-recommended alternative from STMicroelectronics. It meets all core electrical requirements with the following considerations: breakover voltage is 125V (5V lower than the original 130V specification), and capacitance is 80pF (35pF lower than the original 115pF). The part has active product status and is ROHS3 compliant. This option is available in Tape & Reel packaging.

Both substitutes are suitable for applications where the P1100SCRP was previously specified, provided that the minor parameter variations in SMP100LC-90 are acceptable for the intended circuit design.

Frequently Asked Questions (FAQ)

Q: Can P1100SCLRP be used as a direct replacement for P1100SCRP?

A: Yes. P1100SCLRP is electrically and mechanically identical to P1100SCRP across all specified parameters. The primary difference is product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What are the differences between P1100SCLRP and SMP100LC-90?

A: Both parts share the same off-state voltage (90V), peak pulse currents (400A and 100A), and hold current (150mA). SMP100LC-90 has a breakover voltage of 125V compared to 130V for P1100SCLRP, and capacitance of 80pF compared to 115pF. These differences may affect circuit performance depending on application requirements.

Q: Are packaging options interchangeable between substitutes?

A: All three parts use the DO-214AA (SMB) surface mount package. However, P1100SCLRP is available in Cut Tape and Digi-Reel formats, while SMP100LC-90 is available in Tape & Reel format. Packaging format selection depends on assembly and procurement requirements, not electrical compatibility.

Q: Does the capacitance difference in SMP100LC-90 affect substitution suitability?

A: Capacitance differences may impact high-frequency circuit behavior. The 35pF reduction in SMP100LC-90 (80pF vs. 115pF) should be evaluated against specific circuit design parameters before selection.

Q: Are both substitutes RoHS compliant?

A: Yes. Both P1100SCLRP and SMP100LC-90 are ROHS3 compliant, addressing regulatory requirements that the obsolete P1100SCRP does not meet.