P2300SB Equivalent & Substitute Parts

Part Overview

The P2300SB is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc., designed for overvoltage protection in surface-mount applications. This component features a 190V off-state voltage rating with 250A peak pulse current capability in a DO-214AA (SMB) package. The P2300SB is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

P2300SB

Littelfuse Inc.In Stock: 10184P2300SB Datasheet

Current PartRFQ

P2300SBLRP

Littelfuse Inc.In Stock: 20447P2300SBLRP Datasheet

DirectRFQ

SMP100LC-200

STMicroelectronicsIn Stock: 17673SMP100LC-200 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P2300SB are identified based on electrical and mechanical compatibility within the TVS thyristor category. The primary substitution criteria are:

Electrical Parameters: Voltage ratings (breakover and off-state), peak pulse current capability (8/20µs and 10/1000µs), and hold current must remain within acceptable operating ranges for the application.

Mechanical Parameters: Package type (DO-214AA, SMB) and mounting configuration (surface mount) must match to ensure PCB compatibility without redesign.

Functional Equivalence: Single-element thyristor configuration with comparable transient suppression characteristics.

Two substitute parts meet these criteria: P2300SBLRP (direct equivalent from Littelfuse Inc.) and SMP100LC-200 (manufacturer-recommended alternative from STMicroelectronics).

Parameter Comparison

Engineering Selection Recommendations

P2300SBLRP is the direct equivalent substitute for the obsolete P2300SB. This part maintains identical electrical specifications (260V breakover, 190V off-state, 250A peak pulse current) and mechanical compatibility (DO-214AA, SMB package). P2300SBLRP carries active product status and ROHS3 compliance, providing regulatory alignment for new designs and procurement continuity. Packaging is supplied in Tape & Reel (TR) format with 20,400 units in stock.

SMP100LC-200 is a manufacturer-recommended alternative from STMicroelectronics. This part operates at a slightly elevated off-state voltage (200V versus 190V) and breakover voltage (250V versus 260V), with enhanced peak pulse current capability (400A versus 250A at 8/20µs). The SMP100LC-200 is suitable for applications where higher current handling is beneficial or where voltage tolerance permits the 10V differential. This part is ROHS3 compliant and actively produced, with 17,590 units in stock.

Selection between P2300SBLRP and SMP100LC-200 depends on application voltage margins and current requirements. For direct replacement with identical electrical performance, P2300SBLRP is the appropriate choice. For applications requiring enhanced transient current suppression capability, SMP100LC-200 provides superior performance within the same package footprint.

Frequently Asked Questions (FAQ)

Q: Can P2300SBLRP be used as a direct replacement for P2300SB?

A: Yes. P2300SBLRP is electrically and mechanically identical to P2300SB, with matching voltage ratings (260V breakover, 190V off-state), peak pulse current (250A at 8/20µs), and DO-214AA package configuration. The primary difference is product status (active versus obsolete) and regulatory compliance (ROHS3 compliant).

Q: What are the voltage differences between P2300SB and SMP100LC-200?

A: SMP100LC-200 operates at 200V off-state voltage and 250V breakover voltage, compared to P2300SB specifications of 190V off-state and 260V breakover. The 10V differential in off-state voltage and 10V reduction in breakover voltage must be evaluated against application circuit design margins.

Q: Are all substitute parts available in the same package?

A: Yes. P2300SBLRP and SMP100LC-200 are both supplied in DO-214AA (SMB) surface-mount packages, ensuring PCB footprint compatibility without layout redesign.

Q: What is the primary advantage of SMP100LC-200 over P2300SBLRP?

A: SMP100LC-200 provides 400A peak pulse current capability (8/20µs) compared to 250A in P2300SBLRP, offering enhanced transient suppression capacity. This higher current rating may benefit applications with severe overvoltage transient conditions.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both P2300SBLRP and SMP100LC-200 are ROHS3 compliant. The original P2300SB is RoHS non-compliant, making either substitute suitable for designs requiring regulatory compliance.

Q: What is the hold current specification for all parts?

A: All three parts (P2300SB, P2300SBLRP, and SMP100LC-200) maintain a hold current (Ih) of 150mA, ensuring consistent thyristor latching behavior across substitutions.