SA36C Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The SA36C is a bidirectional Zener TVS diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage suppression applications. It features a 36V reverse standoff voltage with a 61.01V maximum clamping voltage and 8.8A peak pulse current capability in a through-hole DO-204AC (DO-15) axial package. The SA36C is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement.

Substiute Parts

SA36C

Littelfuse Inc.In Stock: 735SA36C Datasheet

Current PartRFQ

SA36CA

Taiwan Semiconductor CorporationIn Stock: 2223SA36CA Datasheet

DirectRFQ

SA36CA-AP

Micro Commercial CoIn Stock: 1131SA36CA-AP Datasheet

MFR RecommendedRFQ

SA36CA-BP

Micro Commercial CoIn Stock: 918SA36CA-BP Datasheet

MFR RecommendedRFQ

SA36CA-TP

Micro Commercial CoIn Stock: 1155SA36CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SA36C is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must be 36V to maintain circuit protection thresholds
• Voltage - Clamping (Max) @ Ipp: Must not exceed 61.01V to ensure adequate transient suppression
• Current - Peak Pulse (10/1000µs): Must support minimum 8.8A to handle specified surge conditions
• Power - Peak Pulse: Must be rated at 500W
• Package / Case: Must be DO-204AC (DO-15) axial through-hole configuration
• Operating Temperature Range: Must support -55°C ~ 175°C (TJ)
• Type: Must be Zener bidirectional TVS diode with 1 channel

The substitute parts SA36CA, SA36CA-AP, SA36CA-BP, and SA36CA-TP meet these electrical and mechanical requirements while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain electrical compatibility with the SA36C within the specified parameter tolerances. The SA36CA from Taiwan Semiconductor Corporation is the primary direct equivalent, offering active product status and the highest inventory availability at 2200 units.

The SA36CA-AP, SA36CA-BP, and SA36CA-TP variants from Micro Commercial Co are manufacturer-recommended alternatives with active status. These parts are functionally equivalent with identical electrical specifications and operating temperature ranges. Selection among these three variants should be based on packaging requirements (Bulk) and internal device binning designations (AP, BP, TP suffixes).

All substitute parts are ROHS3 compliant or unaffected by REACH regulations, supporting compliance requirements for modern applications. The clamping voltage improvement in substitute parts (58.1V versus 61.01V) provides enhanced transient suppression performance while remaining within acceptable circuit design margins.

Frequently Asked Questions (FAQ)

Q: Can SA36CA be used as a direct replacement for SA36C?

A: Yes. The SA36CA maintains identical reverse standoff voltage (36V), equivalent peak pulse current (9A versus 8.8A), and matching power dissipation (500W). The clamping voltage is lower (58.1V versus 61.01V), providing improved transient suppression. Package and operating temperature specifications are identical.

Q: What is the difference between SA36CA, SA36CA-AP, SA36CA-BP, and SA36CA-TP?

A: These parts share identical electrical specifications and operating parameters. The suffix designations (AP, BP, TP) represent manufacturer device binning or internal classification codes. Selection should be based on packaging format availability and supplier inventory.

Q: Are the Micro Commercial Co variants (SA36CA-AP, SA36CA-BP, SA36CA-TP) equivalent to the Taiwan Semiconductor Corporation SA36CA?

A: Yes. All four substitute parts meet the same electrical and mechanical requirements for SA36C replacement. They differ only in manufacturer and packaging format (Bulk versus Tape & Reel).

Q: Does the lower clamping voltage (58.1V) in substitute parts affect circuit performance?

A: The lower clamping voltage in substitute parts (58.1V versus 61.01V) represents improved transient suppression performance. This is within acceptable design margins for 36V standoff voltage applications and does not compromise circuit protection.

Q: What packaging formats are available for these substitute parts?

A: SA36CA is supplied in Tape & Reel (TR) format. SA36CA-AP, SA36CA-BP, and SA36CA-TP are supplied in Bulk packaging. All maintain the DO-204AC (DO-15) axial through-hole configuration.

Q: Are all substitute parts RoHS compliant?

A: SA36CA is explicitly ROHS3 compliant. SA36CA-AP, SA36CA-BP, and SA36CA-TP have REACH Unaffected status, confirming compliance with current environmental regulations.