P0300SCMCRP Equivalent & Substitute Parts

Part Overview

The P0300SCMCRP is a 25V off-state, 400A peak pulse TVS thyristor manufactured by Littelfuse 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 peak pulse current handling.

Substiute Parts

P0300SCMCRP

LittelfuseIn Stock: 4815P0300SCMCRP Datasheet

Current PartRFQ

P0300SCMCLRP

Littelfuse Inc.In Stock: 15773P0300SCMCLRP Datasheet

DirectRFQ

SMP100LC-25

STMicroelectronicsIn Stock: 17976SMP100LC-25 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P0300SCMCRP is determined by electrical and mechanical parameter alignment within the TVS thyristor category. The critical parameters governing substitution are: off-state voltage (25V), peak pulse current rating (400A at 8/20µs), package type (DO-214AA/SMB), and mounting configuration (surface mount). Substitute parts must maintain these core electrical specifications and physical form factor to ensure functional equivalence in circuit applications.

Two substitute parts are identified:

P0300SCMCLRP (Littelfuse): Direct electrical and mechanical equivalent with identical specifications. Differs only in product status (active vs. obsolete) and packaging format (Cut Tape & Digi-Reel vs. standard packaging).

SMP100LC-25 (STMicroelectronics): Functionally equivalent TVS thyristor with matching off-state voltage, peak pulse current, package type, and mounting configuration. Operates within the same electrical performance envelope for transient suppression applications.

Parameter Comparison

Engineering Selection Recommendations

P0300SCMCLRP is the primary substitute for P0300SCMCRP. This part maintains identical electrical specifications and physical form factor while offering active product status and ROHS3 compliance. Selection of P0300SCMCLRP eliminates obsolescence risk and aligns with current regulatory requirements.

SMP100LC-25 serves as an alternative substitute from STMicroelectronics. This part meets the core electrical requirements (25V off-state, 400A peak pulse current, DO-214AA package) and maintains active product status with ROHS3 compliance. The SMP100LC-25 exhibits a 5V lower breakover voltage (35V vs. 40V), a 100mA higher hold current (150mA vs. 50mA), and 20pF higher capacitance (65pF vs. 45pF). These parameter variations remain within acceptable tolerances for TVS thyristor applications and do not preclude functional substitution.

Frequently Asked Questions (FAQ)

Q: Can P0300SCMCLRP directly replace P0300SCMCRP without circuit modification?

A: Yes. P0300SCMCLRP is electrically and mechanically identical to P0300SCMCRP. No circuit modifications are required. The primary difference is product status (active vs. obsolete) and packaging format.

Q: What are the key differences between P0300SCMCLRP and SMP100LC-25?

A: Both parts share identical off-state voltage (25V), peak pulse current ratings (400A at 8/20µs, 100A at 10/1000µs), and package type (DO-214AA/SMB). SMP100LC-25 differs in breakover voltage (35V vs. 40V), hold current (150mA vs. 50mA), and capacitance (65pF vs. 45pF). These differences reflect manufacturer design variations within the TVS thyristor category and do not prevent functional substitution.

Q: Are both substitute parts available in the same packaging formats?

A: P0300SCMCLRP is available in Cut Tape and Digi-Reel packaging. SMP100LC-25 is available in Cut Tape and Digi-Reel packaging. Both support standard surface mount assembly processes.

Q: Does the obsolete status of P0300SCMCRP affect circuit performance?

A: No. Obsolete status indicates discontinued manufacturing and limited availability. It does not affect the electrical or mechanical performance of existing inventory. However, substitution with active parts (P0300SCMCLRP or SMP100LC-25) is recommended for new designs and long-term procurement planning.

Q: Are there compliance differences between the three parts?

A: P0300SCMCRP is RoHS non-compliant. Both P0300SCMCLRP and SMP100LC-25 are ROHS3 compliant and REACH unaffected. For applications requiring regulatory compliance, P0300SCMCLRP or SMP100LC-25 are required.