P0080SB Equivalent & Substitute Parts

Part Overview

The P0080SB is a 6V off-state TVS thyristor manufactured by Littelfuse Inc. in the DO-214AA (SMB) package, designed for transient voltage suppression applications. This part is classified as obsolete, making identification of equivalent and substitute components necessary for ongoing design support and procurement. The P0080SB operates with a 25V breakover voltage and handles peak pulse currents of 250A (8/20µs), making it suitable for high-speed transient protection in compact surface-mount applications.

Substiute Parts

P0080SB

Littelfuse Inc.In Stock: 21735P0080SB Datasheet

Current PartRFQ

P0080SBLRP

Littelfuse Inc.In Stock: 31318P0080SBLRP Datasheet

DirectRFQ

SMP100LC-8

STMicroelectronicsIn Stock: 17175SMP100LC-8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P0080SB are identified based on strict electrical and mechanical compatibility criteria. The primary substitution logic is based on the following allowed parameters:

• Voltage - Off State: 6V (primary electrical specification)
• Voltage - Breakover: 25V (triggering characteristic)
• Current - Peak Pulse (8/20µs): 250A (surge handling capability)
• Package / Case: DO-214AA, SMB (mechanical and thermal compatibility)
• Mounting Type: Surface Mount (assembly compatibility)

Two substitute parts are identified:

1. P0080SBLRP (Littelfuse Inc.) — Direct equivalent with identical electrical specifications and packaging, differentiated only by tape & reel packaging format and active product status.

2. SMP100LC-8 (STMicroelectronics) — Manufacturer-recommended alternative with modified electrical parameters (8V off-state, 400A peak pulse current, 15V breakover) within the same package family, suitable for applications where higher current handling and voltage tolerance are acceptable.

Parameter Comparison

Engineering Selection Recommendations

P0080SBLRP is the direct functional equivalent of the P0080SB, maintaining identical electrical specifications (6V off-state, 25V breakover, 250A peak pulse current) and package format. This part is currently in active production status with ROHS3 compliance and REACH unaffected certification, making it the preferred choice for direct replacement in existing designs. The only difference is packaging format (tape & reel versus bulk), which does not affect electrical performance.

SMP100LC-8 is a manufacturer-recommended alternative from STMicroelectronics that operates at a higher off-state voltage (8V) and breakover voltage (15V) with increased peak pulse current capability (400A). This part is suitable for applications where the circuit design can accommodate the modified voltage parameters and where higher transient current handling is beneficial. Both substitute parts maintain the same DO-214AA package and surface-mount compatibility as the original P0080SB.

Frequently Asked Questions (FAQ)

Q: Can P0080SBLRP be used as a direct replacement for P0080SB?

A: Yes. P0080SBLRP is electrically identical to P0080SB with matching voltage ratings (6V off-state, 25V breakover) and current specifications (250A peak pulse). The only difference is packaging format (tape & reel). Both parts are compatible with the same PCB footprint and circuit design.

Q: What are the key differences between P0080SB and SMP100LC-8?

A: SMP100LC-8 differs in three electrical parameters: off-state voltage (8V vs. 6V), breakover voltage (15V vs. 25V), and peak pulse current (400A vs. 250A). Capacitance is also lower (75pF vs. 150pF). These differences require circuit evaluation to confirm compatibility with the original design intent.

Q: Why is P0080SB marked as obsolete?

A: P0080SB is classified as obsolete by the manufacturer. P0080SBLRP provides an active production alternative with identical electrical specifications, ensuring continued availability and compliance with current manufacturing standards.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both P0080SBLRP and SMP100LC-8 are ROHS3 compliant, whereas the original P0080SB is non-compliant. This is relevant for applications subject to RoHS regulations.

Q: What packaging options are available for these parts?

A: P0080SB is supplied in bulk packaging. P0080SBLRP is available in tape & reel format. SMP100LC-8 is available in cut tape and Digi-Reel® formats. All three parts use the same DO-214AA (SMB) package footprint.

Q: Can SMP100LC-8 be used in any circuit designed for P0080SB?

A: SMP100LC-8 requires circuit evaluation due to modified voltage parameters. The lower breakover voltage (15V vs. 25V) and higher off-state voltage (8V vs. 6V) may affect circuit behavior. Use only if the application design can accommodate these parameter changes.