SA30C-E3/54 Equivalent & Substitute Parts

Part Overview

The SA30C-E3/54 is a 30V Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for general-purpose transient protection applications. This component features a 53.5V maximum clamping voltage, 9.3A peak pulse current capability, and 500W peak pulse power rating in a through-hole DO-204AC (DO-15) axial package.

The SA30C-E3/54 is classified as obsolete. Locating equivalent or substitute components is necessary to support ongoing maintenance, repair, and new design requirements where this part is specified or functionally required.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	30	V
Voltage - Breakdown (Min)	33.3	V
Voltage - Clamping (Max) @ Ipp	53.5	V
Current - Peak Pulse (10/1000µs)	9.3	A
Power - Peak Pulse	500	W
Operating Temperature Range	-55 to 175	°C
Mounting Type	Through Hole	-
Package / Case	DO-204AC, DO-15, Axial	-
Type	Zener	-
Bidirectional Channels	1	-

Substitute Part Grouping Explanation

Substitute parts for the SA30C-E3/54 are qualified based on the following critical parameters that determine functional equivalence:

Voltage - Reverse Standoff (Typ): 30V
Voltage - Breakdown (Min): 33.3V
Mounting Type: Through Hole
Package / Case: DO-204AC, DO-15, Axial
Type: Zener
Bidirectional Channels: 1
Operating Temperature Range: -55°C to 175°C
Power - Peak Pulse: 500W

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in clamping voltage and peak pulse current are within acceptable tolerance ranges for general-purpose TVS diode applications where the standoff and breakdown voltages remain constant.

Parameter Comparison

Parameter	SA30C-E3/54 (Main)	SA30CA-E3/54	SA30CA (Taiwan)	SA30CA-AP	SA30CA-BP	SA30CA-TP
Manufacturer	Vishay	Vishay	Taiwan Semiconductor	Micro Commercial Co	Micro Commercial Co	Micro Commercial Co
Voltage - Reverse Standoff (Typ)	30V	30V	30V	30V	30V	30V
Voltage - Breakdown (Min)	33.3V	33.3V	33.3V	33.3V	33.3V	33.3V
Voltage - Clamping (Max) @ Ipp	53.5V	48.4V	64.3V	48.4V	48.4V	48.4V
Current - Peak Pulse (10/1000µs)	9.3A	10A	10.8A	10.5A	10.5A	10.5A
Power - Peak Pulse	500W	500W	500W	500W	500W	500W
Operating Temperature	-55 to 175°C (TJ)	-55 to 175°C (TJ)	-55 to 175°C (TJ)	-55 to 175°C (TJ)	-55 to 175°C (TJ)	-55 to 175°C (TA)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AC, DO-15	DO-204AC, DO-15	DO-204AC, DO-15	DO-15	DO-15	DO-15
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Not specified	Not specified	Not specified	ROHS3 Compliant
Packaging Type	-	Cut Tape (CT)	Tape & Reel (TR)	Bulk	Bulk	Cut Tape (CT)
Inventory Status	696 Pcs	19313 Pcs	1680 Pcs	844 Pcs	904 Pcs	8682 Pcs

Engineering Selection Recommendations

All listed substitute parts maintain the core electrical specifications required for SA30C-E3/54 replacement: 30V reverse standoff voltage, 33.3V minimum breakdown voltage, through-hole mounting, and DO-15 axial package compatibility.

SA30CA-E3/54 (Vishay, Active): Direct manufacturer alternative with identical standoff and breakdown voltages. ROHS3 compliant. Clamping voltage of 48.4V and peak pulse current of 10A provide equivalent protection performance. Cut tape packaging available with highest inventory (19,313 pcs).

SA30CA (Taiwan Semiconductor, Active): Functionally equivalent with identical standoff and breakdown voltages. Clamping voltage of 64.3V and peak pulse current of 10.8A provide enhanced transient suppression capability. Tape & reel packaging available.

SA30CA-AP, SA30CA-BP, SA30CA-TP (Micro Commercial Co, Active): All three variants maintain identical standoff and breakdown voltages with 48.4V clamping and 10.5A peak pulse current. Available in bulk (AP, BP) and cut tape (TP) packaging options. SA30CA-TP offers highest inventory (8,682 pcs) and ROHS3 compliance.

Selection should prioritize active product status and compliance certifications. All substitute parts are REACH unaffected and classified under ECCN EAR99.

Frequently Asked Questions (FAQ)

Q: Can SA30CA-E3/54 directly replace SA30C-E3/54?

A: Yes. Both parts share identical reverse standoff voltage (30V), breakdown voltage (33.3V), operating temperature range (-55 to 175°C), and through-hole DO-15 axial package. SA30CA-E3/54 is an active product from the same manufacturer.

Q: What is the difference between the clamping voltages listed for different substitutes?

A: Clamping voltage variation (48.4V to 64.3V) reflects different transient suppression characteristics while maintaining the same standoff and breakdown voltages. All values are within acceptable ranges for general-purpose TVS diode applications. Selection depends on specific circuit transient energy requirements.

Q: Are all substitute parts RoHS compliant?

A: SA30CA-E3/54 and SA30CA-TP are explicitly ROHS3 compliant. Taiwan Semiconductor SA30CA and Micro Commercial Co AP/BP variants do not specify RoHS status in provided documentation. All parts are REACH unaffected.

Q: What packaging options are available?

A: SA30CA-E3/54 is available in cut tape (CT). SA30CA is supplied in tape & reel (TR). SA30CA-AP and SA30CA-BP are bulk packaged. SA30CA-TP is cut tape. All maintain DO-15 axial through-hole package compatibility.

Q: Which substitute has the highest inventory availability?

A: SA30CA-E3/54 (Vishay) has 19,313 pieces in stock, followed by SA30CA-TP (Micro Commercial Co) with 8,682 pieces.

Q: Can I use these parts interchangeably in existing designs?

A: Yes, provided the circuit design accommodates the specified clamping voltage and peak pulse current ratings. All substitutes maintain identical standoff and breakdown voltages, operating temperature range, and through-hole mounting configuration.

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