SA9V0CA Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The SA9V0CA is a 9V Zener transient voltage suppressor diode manufactured by onsemi in DO-15 axial package configuration. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement. The part provides 15.4V clamping voltage at peak pulse current with 500W peak pulse power rating, suitable for general-purpose transient voltage suppression applications.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	9V
Voltage - Breakdown (Min)	10V
Voltage - Clamping (Max) @ Ipp	15.4V
Current - Peak Pulse (10/1000µs)	32.5A
Power - Peak Pulse	500W
Type	Zener
Bidirectional Channels	1
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial

Substitute Part Grouping Explanation

Substitution eligibility for the SA9V0CA is determined by strict equivalence across the following critical parameters:

Voltage - Reverse Standoff (Typ): 9V
Voltage - Breakdown (Min): 10V
Voltage - Clamping (Max) @ Ipp: 15.4V
Current - Peak Pulse (10/1000µs): 32.5A minimum
Power - Peak Pulse: 500W
Type: Zener, Bidirectional
Mounting Type: Through Hole
Package / Case: DO-204AC or DO-15 axial

Parts are classified into two categories:

Direct Substitutes maintain identical electrical specifications and package compatibility with the original SA9V0CA, differing only in manufacturer, product status, or packaging format (tape & reel vs. bulk).

Similar Substitutes meet all critical electrical parameters but may originate from different manufacturers with variations in peak pulse current tolerance or operating temperature range, while maintaining functional equivalence in the specified application envelope.

Parameter Comparison

Part Number	Manufacturer	Voltage Standoff (V)	Voltage Breakdown Min (V)	Voltage Clamping Max (V)	Peak Pulse Current (A)	Peak Pulse Power (W)	Package	Product Status	Operating Temp (°C)
SA9V0CA	onsemi	9	10	15.4	32.5	500	DO-15	Obsolete	-
SA9.0CA-E3/54	Vishay	9	10	15.4	32.5	500	DO-204AC (DO-15)	Active	-55 to 175
SA9.0CAHE3/54	Vishay	9	10	15.4	32.5	500	DO-204AC (DO-15)	Active	-55 to 175
P5KE9.0CA-AP	Micro Commercial Co	9	10	15.4	32.5	500	DO-15	Active	-65 to 175
P5KE9.0CA-BP	Micro Commercial Co	9	10	15.4	32.5	500	DO-15	Active	-65 to 175
P5KE9.0CA-TP	Micro Commercial Co	9	10	15.4	32.5	500	DO-15	Active	-65 to 175
SA9.0CA	Taiwan Semiconductor Corporation	9	10	15.4	34	500	DO-204AC (DO-15)	Active	-55 to 175

Engineering Selection Recommendations

Direct Substitutes - Preferred Selection:

SA9.0CA-E3/54 and SA9.0CAHE3/54 (Vishay) are active-status direct substitutes with identical electrical specifications. SA9.0CAHE3/54 carries AEC-Q101 automotive qualification and ROHS3 compliance, suitable for automotive and industrial applications requiring enhanced reliability documentation. SA9.0CA-E3/54 provides equivalent performance in general-purpose applications with ROHS3 compliance.

Similar Substitutes - Alternative Selection:

P5KE9.0CA-AP, P5KE9.0CA-BP, and P5KE9.0CA-TP (Micro Commercial Co) meet all critical electrical parameters with extended lower operating temperature limit (-65°C vs. -55°C). These parts are functionally equivalent for applications within the specified voltage and current envelope.

SA9.0CA (Taiwan Semiconductor Corporation) provides peak pulse current of 34A, exceeding the 32.5A specification, with ROHS3 compliance and active product status.

All substitute parts maintain through-hole axial mounting compatibility with DO-15 or DO-204AC package designations, enabling direct mechanical and electrical substitution in existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can SA9.0CA-E3/54 directly replace SA9V0CA in existing designs?

A: Yes. SA9.0CA-E3/54 maintains identical voltage standoff (9V), breakdown (10V), clamping (15.4V), peak pulse current (32.5A), and peak pulse power (500W) specifications. The DO-204AC package is mechanically and electrically compatible with DO-15 axial through-hole mounting.

Q: What is the difference between SA9.0CAHE3/54 and SA9.0CA-E3/54?

A: Both parts are electrically identical. SA9.0CAHE3/54 includes AEC-Q101 automotive qualification and is specified for automotive-grade applications. SA9.0CA-E3/54 is suitable for general-purpose applications. Both carry ROHS3 compliance.

Q: Are Micro Commercial Co P5KE9.0CA variants suitable replacements?

A: Yes. P5KE9.0CA-AP, P5KE9.0CA-BP, and P5KE9.0CA-TP meet all critical electrical parameters. These parts extend the lower operating temperature to -65°C and are available in bulk packaging. Selection among the three variants depends on packaging and supplier availability requirements.

Q: Does SA9.0CA from Taiwan Semiconductor Corporation provide equivalent performance?

A: Yes. SA9.0CA meets all critical specifications with peak pulse current of 34A, which exceeds the 32.5A requirement. This part is suitable for applications requiring additional current margin and carries ROHS3 compliance.

Q: What packaging formats are available for substitute parts?

A: Vishay parts (SA9.0CA-E3/54, SA9.0CAHE3/54) are supplied in tape & reel format. Micro Commercial Co variants (P5KE9.0CA-AP, P5KE9.0CA-BP, P5KE9.0CA-TP) are supplied in bulk packaging. Taiwan Semiconductor SA9.0CA is supplied in tape & reel format. All maintain DO-15 or DO-204AC axial through-hole package compatibility.

Q: Are there compliance or certification differences among substitutes?

A: SA9.0CAHE3/54 carries AEC-Q101 automotive qualification. All active substitutes carry ROHS3 compliance. The original SA9V0CA (onsemi) is classified as obsolete. Selection should prioritize active-status parts with applicable compliance certifications for the target application environment.

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