P2500SALRP Equivalent & Substitute Parts

Part Overview

The P2500SALRP is a 230V off-state transient voltage suppressor thyristor manufactured by Littelfuse Inc. in the SIDACtor® series. This surface mount component operates in the DO-214AA (SMB) package and is designed for transient voltage suppression applications requiring 150A peak pulse current capability at 8/20µs pulse width. The part is active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts may be required due to inventory availability, lead time constraints, or application-specific performance requirements within compatible electrical and mechanical parameters.

Substiute Parts

P2500SALRP

Littelfuse Inc.In Stock: 2312P2500SALRP Datasheet

Current PartRFQ

SMP100LC-230

STMicroelectronicsIn Stock: 187787SMP100LC-230 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P2500SALRP is determined by the following critical parameters:

• Off-State Voltage: Must be 230V to maintain circuit protection threshold compatibility
• Package / Case: Must be DO-214AA (SMB) to ensure mechanical and thermal compatibility with existing PCB layouts
• Mounting Type: Must be surface mount to match assembly process requirements
• RoHS Compliance: Must maintain ROHS3 compliance for regulatory alignment

The SMP100LC-230 manufactured by STMicroelectronics meets all substitution criteria. While this part exhibits higher peak pulse current ratings (400A at 8/20µs versus 150A), lower breakover voltage (285V versus 290V), and increased capacitance (60pF versus 35pF), these parameters remain within acceptable tolerance ranges for transient voltage suppression applications. The substitute part operates in the same voltage class, uses identical packaging, and maintains equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the P2500SALRP and SMP100LC-230 are active production components with full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications. Selection between these parts should be based on application-specific current handling requirements and circuit design parameters. The P2500SALRP is suitable for applications with peak pulse current demands up to 150A at 8/20µs. The SMP100LC-230 provides higher current capacity (400A at 8/20µs) and may be selected for applications requiring enhanced transient suppression performance or higher energy dissipation capability. Both components maintain identical off-state voltage (230V) and package form factor (DO-214AA, SMB), ensuring direct mechanical and electrical compatibility within the same circuit topology.

Frequently Asked Questions (FAQ)

Q: Can the SMP100LC-230 directly replace the P2500SALRP in existing designs?

A: Yes, the SMP100LC-230 is mechanically and electrically compatible. Both components use the DO-214AA (SMB) package and operate at 230V off-state voltage. The substitute part has higher current ratings and lower breakover voltage, which are acceptable variations for transient voltage suppression applications.

Q: What is the significance of the different peak pulse current ratings?

A: The P2500SALRP is rated for 150A peak pulse current (8/20µs), while the SMP100LC-230 is rated for 400A. The substitute part provides greater transient suppression capability. Applications designed for 150A operation will function correctly with the higher-rated substitute component.

Q: Are there packaging differences between these parts?

A: No. Both the P2500SALRP and SMP100LC-230 use the DO-214AA (SMB) surface mount package. They are mechanically identical and require no PCB layout modifications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for industrial applications.

Q: What is the impact of the capacitance difference?

A: The P2500SALRP has 35pF capacitance while the SMP100LC-230 has 60pF. This difference may affect high-frequency circuit behavior. Applications sensitive to capacitive loading should evaluate this parameter against specific circuit requirements.

Q: How do the breakover voltage differences affect circuit operation?

A: The P2500SALRP has a 290V breakover voltage while the SMP100LC-230 has 285V. Both operate within the 230V off-state voltage class. The 5V difference represents a 1.7% variation and is acceptable for transient voltage suppression applications.