SA10A-T Equivalent & Substitute Parts

Part Overview

The SA10A-T is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Diodes Incorporated, rated for 10V reverse standoff voltage with 17V maximum clamping voltage. This component is classified as obsolete, though 811 pieces remain in stock as new original inventory. The part is designed for general-purpose transient voltage suppression applications in through-hole DO-15 packaging.

Due to the obsolete product status, identifying equivalent and substitute parts is essential for design continuity, long-term supply chain planning, and new production runs. Active alternatives with identical or superior electrical characteristics are available from multiple manufacturers.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	10V
Voltage - Breakdown (Min)	11.1V
Voltage - Clamping (Max) @ Ipp	17V
Current - Peak Pulse (10/1000µs)	29.4A
Power - Peak Pulse	500W
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
Operating Temperature	-65°C ~ 175°C (TJ)
Type	Zener
Unidirectional Channels	1

Substitute Part Grouping Explanation

Substitute parts for the SA10A-T are categorized based on strict electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

Voltage - Reverse Standoff (Typ): 10V
Voltage - Clamping (Max) @ Ipp: 17V
Voltage - Breakdown (Min): 11.1V
Mounting Type: Through Hole
Type: Zener, Unidirectional (1 channel)

Grouping Logic:

Group 1: Direct Electrical Equivalents (DO-15 Package) Parts with identical voltage ratings, 29.4A to 30A peak pulse current, 500W power rating, and DO-15 packaging. These provide pin-for-pin and functional equivalence with active product status.

Group 2: Enhanced Performance Alternatives (Larger Packages) Parts with identical voltage ratings but higher peak pulse current ratings (88A to 294.12A) and correspondingly higher power dissipation (1.5kW to 5kW). These use larger through-hole packages (DO-201AE, R-6) and are suitable for applications requiring greater transient energy absorption.

Parameter Comparison

Part Number	Manufacturer	Product Status	Vwm (Typ)	Vbr (Min)	Vc (Max)	Ipp (A)	Power (W)	Package	Temp Range
SA10A-T	Diodes Incorporated	Obsolete	10V	11.1V	17V	29.4A	500W	DO-15	-65°C ~ 175°C
P5KE10A-AP	Micro Commercial Co	Active	10V	11.1V	17V	29.4A	500W	DO-15	-65°C ~ 175°C
P5KE10A-BP	Micro Commercial Co	Active	10V	11.1V	17V	29.4A	500W	DO-15	-65°C ~ 175°C
P5KE10A-TP	Micro Commercial Co	Active	10V	11.1V	17V	29.4A	500W	DO-15	-65°C ~ 175°C
SA10A	Taiwan Semiconductor Corporation	Active	10V	11.1V	17V	30A	500W	DO-204AC (DO-15)	-55°C ~ 175°C
SA10A-E3/54	Vishay General Semiconductor	Active	10V	11.1V	17V	29.4A	500W	DO-204AC (DO-15)	-55°C ~ 175°C
SA10AHE3/54	Vishay General Semiconductor	Active	10V	11.1V	17V	29.4A	500W	DO-204AC (DO-15)	-55°C ~ 175°C
3KP10A-TP	Micro Commercial Co	Active	10V	11.1V	17V	176.5A	3000W	R-6	-55°C ~ 175°C
5KP10A-G	Comchip Technology	Active	10V	11.1V	17V	294.12A	5000W	R-6	-55°C ~ 150°C
LCE10A-TP	Micro Commercial Co	Active	10V	11.1V	17V	88A	1500W	DO-201AE	-55°C ~ 175°C
SA10A-AP	Micro Commercial Co	Active	10V	11.1V	17V	30A	500W	DO-15	-55°C ~ 175°C

Engineering Selection Recommendations

For Direct Replacement (Same Package, Same Power Rating):

Select from P5KE10A-AP, P5KE10A-BP, P5KE10A-TP, SA10A, SA10A-E3/54, SA10AHE3/54, or SA10A-AP. All maintain identical voltage specifications (10V Vwm, 17V Vc) and 500W power dissipation in DO-15 or DO-204AC packaging. These parts are all active products with current manufacturing support.

The SA10AHE3/54 variant includes AEC-Q101 automotive qualification and is suitable for automotive-grade applications. The SA10A from Taiwan Semiconductor Corporation and SA10A-AP from Micro Commercial Co offer the highest inventory availability (2236 and 904 pieces respectively).

For Enhanced Transient Protection:

When circuit design permits package changes, LCE10A-TP (88A, 1500W, DO-201AE), 3KP10A-TP (176.5A, 3000W, R-6), and 5KP10A-G (294.12A, 5000W, R-6) provide superior transient energy absorption while maintaining identical voltage clamping characteristics. These are appropriate for high-energy transient environments or power line protection circuits.

Compliance Considerations:

All substitute parts maintain RoHS3 compliance and REACH compliance status equivalent to or better than the original SA10A-T. The SA10A-T is ROHS3 compliant and REACH affected; all active substitutes are either ROHS3 compliant or REACH unaffected, ensuring regulatory continuity.

Frequently Asked Questions (FAQ)

Q: Can P5KE10A series parts directly replace SA10A-T in existing PCB designs?

A: Yes. P5KE10A-AP, P5KE10A-BP, and P5KE10A-TP are direct functional equivalents with identical voltage ratings (10V Vwm, 17V Vc), peak pulse current (29.4A), and power dissipation (500W). All are packaged in DO-15 and maintain the same through-hole footprint. The primary difference is packaging format (bulk vs. tape & reel), which does not affect electrical performance.

Q: What is the difference between SA10A-E3/54 and SA10AHE3/54?

A: Both parts share identical electrical specifications and voltage ratings. SA10AHE3/54 includes AEC-Q101 automotive qualification and is supplied in tape & reel packaging, making it suitable for automotive applications and high-volume production. SA10A-E3/54 is supplied in cut tape format. Select SA10AHE3/54 for automotive or mission-critical applications.

Q: When should I use 3KP10A-TP or 5KP10A-G instead of direct DO-15 equivalents?

A: Use higher-power variants (3KP10A-TP with 176.5A, 3000W or 5KP10A-G with 294.12A, 5000W) when circuit transient energy exceeds 500W or when peak pulse current requirements exceed 30A. These parts maintain identical voltage clamping (17V) but use larger R-6 axial packages. PCB layout and component mounting must accommodate the larger package size.

Q: Are all substitute parts RoHS and REACH compliant?

A: All active substitute parts listed maintain RoHS3 compliance or equivalent regulatory status. REACH compliance varies: Micro Commercial Co and Comchip Technology parts are REACH unaffected, while Vishay parts are REACH unaffected. The original SA10A-T is REACH affected. Verify specific regulatory requirements for your application and region.

Q: What is the temperature operating range difference between SA10A-T and substitutes?

A: SA10A-T operates from -65°C to 175°C (TJ). Most active substitutes operate from -55°C to 175°C (TJ), representing a 10°C reduction in minimum operating temperature. For applications requiring -65°C operation, verify substitute part datasheets. The 5KP10A-G variant has a maximum operating temperature of 150°C, which is 25°C lower than SA10A-T; this part is suitable only for applications with maximum junction temperatures below 150°C.

Q: Can I use SA10A-AP as a substitute if my design specifies SA10A-T?

A: Yes. SA10A-AP from Micro Commercial Co provides identical electrical specifications (10V Vwm, 17V Vc, 30A Ipp, 500W) in DO-15 packaging. The part is active with 904 pieces in stock. Operating temperature range is -55°C to 175°C, which is 10°C higher than SA10A-T at the minimum end. Confirm your application does not require -65°C operation.

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