SA14C-E3/73 Equivalent & Substitute Parts

Part Overview

The SA14C-E3/73 is a TransZorb® Zener Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This through-hole component is designed for general-purpose transient voltage protection applications with a 14V reverse standoff voltage and 25.8V maximum clamping voltage. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

SA14C-E3/73

Vishay General Semiconductor - Diodes DivisionIn Stock: 1147SA14C-E3/73 Datasheet

Current PartRFQ

SA14CA-E3/73

Vishay General Semiconductor - Diodes DivisionIn Stock: 32451SA14CA-E3/73 Datasheet

DirectRFQ

SA14CA

Taiwan Semiconductor CorporationIn Stock: 1115SA14CA Datasheet

MFR RecommendedRFQ

SA14CA-AP

Micro Commercial CoIn Stock: 812SA14CA-AP Datasheet

MFR RecommendedRFQ

SA14CA-BP

Micro Commercial CoIn Stock: 692SA14CA-BP Datasheet

MFR RecommendedRFQ

SA14CA-TP

Micro Commercial CoIn Stock: 965SA14CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SA14C-E3/73 is determined by the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 14V
• Voltage - Breakdown (Min): 15.6V
• Package / Case: DO-204AC, DO-15, Axial
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• Type: Zener
• Bidirectional Channels: 1

All substitute parts listed maintain these core specifications. Variations in clamping voltage (25.8V vs. 23.2V) and peak pulse current (19.4A vs. 21.6A–22.6A) are within acceptable tolerance ranges for general-purpose TVS diode applications while maintaining the same standoff and breakdown voltage characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SA14CA-E3/73

The SA14CA-E3/73 is the direct Vishay equivalent with active product status. It maintains identical standoff and breakdown voltage specifications (14V and 15.6V respectively) and is ROHS3 compliant. The reduced clamping voltage (23.2V vs. 25.8V) and increased peak pulse current (21.6A vs. 19.4A) represent improved performance characteristics for transient suppression while maintaining full compatibility with the original design envelope.

Secondary Substitutes: SA14CA (Taiwan Semiconductor), SA14CA-AP, SA14CA-BP, SA14CA-TP (Micro Commercial Co)

All secondary substitutes maintain identical electrical specifications for standoff voltage (14V), breakdown voltage (15.6V), and clamping voltage (23.2V). These parts are active in production and available in various packaging formats. Selection among these options should be based on packaging requirements (Tape & Reel vs. Bulk) and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can SA14CA-E3/73 be used as a direct replacement for SA14C-E3/73?

A: Yes. Both parts share identical reverse standoff voltage (14V), breakdown voltage (15.6V), and operating temperature range (-55°C to 175°C). The SA14CA-E3/73 features improved clamping voltage (23.2V) and peak pulse current (21.6A) specifications, making it functionally compatible and superior for transient voltage suppression applications.

Q: What is the difference between the Vishay SA14CA-E3/73 and the Taiwan Semiconductor SA14CA?

A: Both parts have identical electrical specifications (14V standoff, 15.6V breakdown, 23.2V clamping). The primary difference is packaging format: Vishay supplies in standard packaging while Taiwan Semiconductor provides Tape & Reel (TR) format. Manufacturer and product availability may also differ.

Q: Are the Micro Commercial Co variants (SA14CA-AP, SA14CA-BP, SA14CA-TP) interchangeable?

A: Yes. All three Micro Commercial Co parts (SA14CA-AP, SA14CA-BP, SA14CA-TP) have identical electrical specifications and DO-15 package configuration. The designations reflect different packaging batches or supply channels. Selection should be based on inventory availability and procurement requirements.

Q: Does the lower clamping voltage (23.2V) of substitute parts affect circuit protection?

A: No. The lower clamping voltage (23.2V vs. 25.8V) on substitute parts represents improved transient suppression performance. All parts maintain the same 14V reverse standoff and 15.6V breakdown voltages, ensuring proper circuit protection thresholds.

Q: Are all substitute parts RoHS compliant?

A: The Vishay SA14CA-E3/73 is explicitly ROHS3 compliant. RoHS compliance status for Micro Commercial Co and Taiwan Semiconductor variants is not specified in available documentation. Verify compliance requirements with your procurement or quality assurance department if RoHS certification is mandatory for your application.

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

A: SA14CA-E3/73 (Vishay) is available in standard packaging. SA14CA (Taiwan Semiconductor) is supplied in Tape & Reel (TR) format. SA14CA-AP, SA14CA-BP, and SA14CA-TP (Micro Commercial Co) are available in Bulk packaging. All maintain DO-204AC/DO-15 axial through-hole configuration.