SA14C-E3/54 Equivalent & Substitute Parts

Part Overview

The SA14C-E3/54 is a TransZorb® Zener TVS diode manufactured by Vishay General Semiconductor - Diodes Division, designed for transient voltage suppression in general-purpose applications. This part operates with a 14V reverse standoff voltage and provides 25.8V maximum clamping voltage at peak pulse current. The SA14C-E3/54 is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts maintain the same electrical performance envelope while offering active product status and improved availability.

Key Parameters

Parameter	Value	Unit
Reverse Standoff Voltage (Typ)	14	V
Breakdown Voltage (Min)	15.6	V
Clamping Voltage (Max) @ Ipp	25.8	V
Peak Pulse Current (10/1000µs)	19.4	A
Peak Pulse Power	500	W
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	DO-204AC (DO-15)	Axial Through Hole
Type	Zener	Bidirectional (1 Channel)

Substitute Part Grouping Explanation

Substitution of the SA14C-E3/54 is determined by strict equivalence across the following electrical and mechanical parameters:

Reverse standoff voltage: 14V (Typ)
Breakdown voltage minimum: 15.6V
Package: DO-204AC (DO-15) axial through-hole configuration
Bidirectional Zener type with single channel
Operating temperature range: -55°C to 175°C
Peak pulse power rating: 500W
RoHS3 compliance and REACH unaffected status

Substitute parts SA14CA-E3/54, SA14CA, SA14CA-AP, SA14CA-BP, and SA14CA-TP meet these core requirements. Clamping voltage and peak pulse current show minor variations within acceptable operating margins for general-purpose transient suppression applications. All substitutes maintain the same base product number (SA14) and electrical classification.

Parameter Comparison

Parameter	SA14C-E3/54 (Main)	SA14CA-E3/54	SA14CA (TSC)	SA14CA-AP (MCC)	SA14CA-BP (MCC)	SA14CA-TP (MCC)
Manufacturer	Vishay	Vishay	Taiwan Semiconductor	Micro Commercial Co	Micro Commercial Co	Micro Commercial Co
Product Status	Obsolete	Active	Active	Active	Active	Active
Reverse Standoff Voltage (Typ)	14V	14V	14V	14V	14V	14V
Breakdown Voltage (Min)	15.6V	15.6V	15.6V	15.6V	15.6V	15.6V
Clamping Voltage (Max) @ Ipp	25.8V	23.2V	23.2V	23.2V	23.2V	23.2V
Peak Pulse Current (10/1000µs)	19.4A	21.6A	22.6A	22A	22A	22A
Peak Pulse Power	500W	500W	500W	500W	500W	500W
Operating Temperature	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C
Package / Case	DO-204AC (DO-15)	DO-204AC (DO-15)	DO-204AC (DO-15)	DO-15	DO-15	DO-15
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not specified	Not specified	Not specified
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Inventory (Pcs)	1016	2776	1041	722	642	914

Engineering Selection Recommendations

SA14CA-E3/54 (Vishay) is the primary direct substitute, maintaining identical manufacturer lineage, RoHS3 compliance certification, and active product status. This part offers the highest inventory availability (2776 pcs) and is packaged in Cut Tape format.

SA14CA (Taiwan Semiconductor Corporation) provides an alternative from an active manufacturer with equivalent electrical specifications and REACH compliance. This part is supplied in Tape & Reel packaging.

SA14CA-AP, SA14CA-BP, and SA14CA-TP (Micro Commercial Co) are functionally equivalent alternatives supplied in bulk packaging. These parts maintain REACH unaffected status and active product classification. RoHS3 compliance status is not specified for these variants.

All substitute parts operate within the same temperature range (-55°C to 175°C) and maintain 500W peak pulse power rating. The reduction in maximum clamping voltage from 25.8V to 23.2V across substitute parts represents a tighter specification that remains within acceptable transient suppression performance for general-purpose applications.

Frequently Asked Questions (FAQ)

Q: Can SA14CA-E3/54 directly replace SA14C-E3/54 in existing designs?

A: Yes. SA14CA-E3/54 maintains identical electrical parameters (14V standoff, 15.6V minimum breakdown, 500W peak power) and the same DO-204AC (DO-15) axial through-hole package. The primary difference is product status: SA14CA-E3/54 is active while SA14C-E3/54 is obsolete.

Q: What is the significance of the clamping voltage difference (25.8V vs 23.2V)?

A: The main part specifies 25.8V maximum clamping voltage, while all substitutes specify 23.2V. Both values fall within acceptable operating margins for general-purpose transient suppression. The lower clamping voltage in substitutes represents a tighter specification that provides equivalent protection performance.

Q: Are there packaging differences between substitute options?

A: Yes. SA14CA-E3/54 is supplied in Cut Tape (CT) format. SA14CA is supplied in Tape & Reel (TR). SA14CA-AP, SA14CA-BP, and SA14CA-TP are supplied in Bulk packaging. All maintain the same DO-204AC (DO-15) axial through-hole component form factor.

Q: Which substitute offers the best availability?

A: SA14CA-E3/54 (Vishay) offers the highest inventory at 2,776 pcs. SA14CA-TP (Micro Commercial Co) provides 914 pcs, and SA14CA (Taiwan Semiconductor) provides 1,041 pcs.

Q: Do all substitutes meet RoHS3 compliance?

A: SA14CA-E3/54 and SA14CA are explicitly RoHS3 compliant. RoHS3 status is not specified for SA14CA-AP, SA14CA-BP, and SA14CA-TP. All substitutes maintain REACH unaffected status.

Q: What is the peak pulse current difference between parts?

A: The main part specifies 19.4A peak pulse current. Substitutes range from 21.6A to 22.6A. Higher peak pulse current in substitutes indicates improved current handling capability within the same 500W power envelope, maintaining compatibility with the original design requirements.

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