SA10CA Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The SA10CA is a Zener-type transient voltage suppressor diode manufactured by onsemi, designed for general-purpose overvoltage protection in through-hole applications. The device features a 10V reverse standoff voltage with 17V maximum clamping voltage and 29.4A peak pulse current capability in a DO-15 package. The main part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

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
Type	Zener
Bidirectional Channels	1
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial

Substitute Part Grouping Explanation

Substitute parts are categorized into two groups based on electrical and mechanical compatibility with the SA10CA:

Direct Substitutes (Functionally Equivalent): Parts that maintain identical or near-identical electrical specifications across all critical parameters: 10V reverse standoff voltage, 11.1V minimum breakdown voltage, 17V maximum clamping voltage, and 29.4A peak pulse current. These parts are packaged in DO-204AC (DO-15) through-hole format and are suitable for direct replacement without circuit modification.

Similar Substitutes (Higher Power Rating): Parts that maintain the same voltage specifications (10V standoff, 11.1V breakdown, 17V clamping) but feature significantly higher peak pulse current ratings (176.5A to 294.12A) and power dissipation (3kW to 5kW). These parts use larger R-6 axial packages and are suitable for applications requiring enhanced transient protection capability.

Voltage-Adjacent Substitutes: Parts with slightly different voltage ratings (10.2V standoff, 11.4V breakdown, 16.7V clamping) that fall within acceptable tolerance ranges for general-purpose protection circuits.

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage - Reverse Standoff	Voltage - Breakdown (Min)	Voltage - Clamping (Max)	Current - Peak Pulse	Power - Peak Pulse	Package	RoHS Status
SA10CA	onsemi	Obsolete	10V	11.1V	17V	29.4A	500W	DO-15	Not specified
SA10CA	Taiwan Semiconductor Corporation	Active	10V	11.1V	17V	30A	500W	DO-204AC (DO-15)	Not specified
SA10CA-E3/54	Vishay General Semiconductor - Diodes Division	Active	10V	11.1V	17V	29.4A	500W	DO-204AC (DO-15)	ROHS3 Compliant
SA10CAHE3/54	Vishay General Semiconductor - Diodes Division	Active	10V	11.1V	17V	29.4A	500W	DO-204AC (DO-15)	ROHS3 Compliant
SA10CA-B	Littelfuse Inc.	Active	10V	11.1V	17V	30A	500W	DO-204AC (DO-15)	ROHS3 Compliant
P5KE10CA-AP	Micro Commercial Co	Active	10V	11.1V	17V	29.4A	500W	DO-15	Not specified
P5KE10CA-BP	Micro Commercial Co	Active	10V	11.1V	17V	29.4A	500W	DO-15	Not specified
P5KE10CA-TP	Micro Commercial Co	Active	10V	11.1V	17V	29.4A	500W	DO-15	Not specified
P6KE12CA	Taiwan Semiconductor Corporation	Active	10.2V	11.4V	16.7V	36A	600W	DO-15	ROHS3 Compliant
3KP10CA-TP	Micro Commercial Co	Active	10V	11.1V	17V	176.5A	3000W	R-6	Not specified
5KP10CA-G	Comchip Technology	Active	10V	11.1V	17V	294.12A	5000W	R-6	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Electrical and Package Specifications):

Select SA10CA-E3/54 (Vishay) or SA10CA-B (Littelfuse) as primary alternatives. Both maintain identical voltage specifications and peak pulse current ratings while offering active product status and ROHS3 compliance. SA10CAHE3/54 provides automotive-grade qualification (AEC-Q101) for applications requiring automotive reliability standards.

For Standard General-Purpose Applications:

P5KE10CA series (Micro Commercial Co) variants provide equivalent electrical performance in DO-15 packaging with active product status. Selection among P5KE10CA-AP, P5KE10CA-BP, and P5KE10CA-TP depends on packaging requirements (bulk, tape & box, or tape & reel).

For Enhanced Transient Protection:

3KP10CA-TP and 5KP10CA-G offer significantly higher peak pulse current and power dissipation while maintaining identical voltage specifications. These parts require R-6 package accommodation and are suitable for applications with higher transient energy levels.

For Voltage-Adjacent Applications:

P6KE12CA provides slightly elevated voltage ratings (10.2V standoff, 16.7V clamping) with increased current capability (36A) and power rating (600W). This part is suitable only when the application circuit tolerates the higher voltage specifications.

Frequently Asked Questions (FAQ)

Q: Can SA10CA-E3/54 be used as a direct replacement for the obsolete SA10CA?

A: Yes. SA10CA-E3/54 maintains identical electrical specifications: 10V reverse standoff voltage, 11.1V minimum breakdown voltage, 17V maximum clamping voltage, and 29.4A peak pulse current. Both use DO-204AC (DO-15) through-hole packaging. No circuit modification is required.

Q: What is the difference between SA10CA-E3/54 and SA10CAHE3/54?

A: Both parts are electrically identical with matching voltage and current specifications. SA10CAHE3/54 includes automotive-grade qualification (AEC-Q101) and is suitable for automotive applications requiring enhanced reliability standards. Standard SA10CA-E3/54 is suitable for general-purpose applications.

Q: Can 3KP10CA-TP or 5KP10CA-G be used in place of SA10CA?

A: These parts maintain identical voltage specifications but feature significantly higher peak pulse current (176.5A and 294.12A respectively) and power dissipation (3kW and 5kW). They require R-6 package accommodation instead of DO-15. Use only when the circuit board layout supports R-6 packaging and higher transient energy protection is required.

Q: Is P6KE12CA compatible with SA10CA?

A: P6KE12CA has slightly different voltage specifications (10.2V standoff, 16.7V clamping) compared to SA10CA (10V standoff, 17V clamping). Use only when the application circuit tolerates these voltage variations.

Q: What packaging options are available for SA10CA substitutes?

A: Direct substitutes are available in DO-204AC (DO-15) through-hole axial packaging. Higher-power variants use R-6 axial packaging. Packaging options include bulk, cut tape (CT), and tape & reel (TR) formats depending on the specific part number and manufacturer.

Q: Are all substitute parts ROHS3 compliant?

A: Not all. Vishay SA10CA-E3/54 and SA10CAHE3/54, Littelfuse SA10CA-B, Taiwan Semiconductor SA10CA, Taiwan Semiconductor P6KE12CA, and Comchip 5KP10CA-G are ROHS3 compliant. Micro Commercial Co P5KE10CA series and 3KP10CA-TP do not specify RoHS status in the provided data.

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