P1300SCRP Equivalent & Substitute Parts

Part Overview

The P1300SCRP is a 120V off-state, 400A peak pulse TVS thyristor manufactured by Littelfuse Inc. in the SIDACtor® series, housed in a DO-214AA SMB package. This component is classified as obsolete, making identification of suitable alternatives necessary for ongoing design support and procurement continuity. The part delivers transient voltage suppression through a thyristor topology with 160V breakover voltage and 4V on-state voltage characteristics.

Substiute Parts

P1300SCRP

Littelfuse Inc.In Stock: 1197P1300SCRP Datasheet

Current PartRFQ

P1300SCLRP

Littelfuse Inc.In Stock: 17137P1300SCLRP Datasheet

DirectRFQ

SMTPA120

STMicroelectronicsIn Stock: 10386SMTPA120 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for TVS thyristors is determined by matching critical electrical parameters: breakover voltage, off-state voltage, on-state voltage, peak pulse current ratings, hold current, and physical package compatibility. All substitute parts must maintain the same DO-214AA SMB package footprint to ensure mechanical and thermal compatibility in existing PCB layouts.

The P1300SCRP has two identified substitutes:

Direct Substitute (Same Manufacturer): P1300SCLRP maintains identical electrical specifications and differs only in packaging format (Tape & Reel versus cut tape) and product status (Active versus Obsolete).

Cross-Manufacturer Substitute: SMTPA120 from STMicroelectronics shares the same breakover voltage (160V), off-state voltage (120V), on-state voltage (4V), hold current (150mA), package (DO-214AA SMB), and element count (1). However, peak pulse current ratings differ: 150A (8/20µs) and 50A (10/1000µs) versus the original 400A and 100A respectively.

Parameter Comparison

Engineering Selection Recommendations

P1300SCLRP is the primary substitute for P1300SCRP. Both parts are manufactured by Littelfuse Inc. within the SIDACtor® series and share identical electrical specifications. P1300SCLRP is currently in active production status with ROHS3 compliance and REACH unaffected certification, addressing the obsolescence of the original part while maintaining full electrical and mechanical compatibility.

SMTPA120 is a secondary substitute suitable only for applications where peak pulse current requirements do not exceed 150A (8/20µs) or 50A (10/1000µs). This STMicroelectronics part maintains voltage parameters and hold current but delivers reduced current-handling capacity. SMTPA120 is also ROHS3 compliant and REACH unaffected. The reduced capacitance (30pF versus 105pF) may affect transient response characteristics in specific circuit topologies.

Frequently Asked Questions (FAQ)

Q: Can P1300SCLRP directly replace P1300SCRP in all applications?

A: Yes. P1300SCLRP is electrically and mechanically identical to P1300SCRP. The only differences are packaging format (Tape & Reel) and active product status. No circuit modifications are required.

Q: What are the limitations of SMTPA120 as a substitute?

A: SMTPA120 has lower peak pulse current ratings: 150A (8/20µs) and 50A (10/1000µs) compared to P1300SCRP's 400A and 100A. Applications requiring higher transient current suppression must use P1300SCLRP. Additionally, SMTPA120 has 30pF capacitance versus 105pF, which may alter circuit transient response.

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

A: Yes. All three parts use the DO-214AA SMB package, ensuring identical PCB footprint and thermal characteristics.

Q: What compliance certifications apply to each part?

A: P1300SCRP is RoHS non-compliant. Both P1300SCLRP and SMTPA120 are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: Which substitute should be selected for new designs?

A: P1300SCLRP is recommended for new designs requiring full electrical equivalence to P1300SCRP. SMTPA120 is suitable only when peak pulse current requirements are confirmed below 150A (8/20µs).