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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Vishay General Semiconductor - Diodes Division SA30C-E3/54

Name: SA30C-E3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: SA30C-E3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SA30C-E3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: SA30C-E3/54.pdf

Description:: TVS DIODE 30VWM 53.5VC DO204AC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SA30C-E3/54 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on signal or power lines. It features a 30 V stand-off voltage (V_WM), 48.4 V maximum clamping voltage (V_C) at 10 A peak pulse current, and 500 W peak pulse power capability with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial control systems.

For engineers reviewing the SA30C-E3/54 datasheet, SA30C-E3/54 pinout, SA30C-E3/54 application, or SA30C-E3/54 equivalent, key selection criteria include bi-directional clamping symmetry, low incremental surge resistance, AEC-Q101 qualification status, RoHS-compliant matte tin plating, and compatibility with J-STD-002 solderability standards.

Technical Context

The SA30C-E3/54 operates as a bi-directional avalanche diode with symmetrical breakdown characteristics in both polarities, enabling transient suppression on AC-coupled or floating signal paths. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while the DO-204AC package supports lead-free reflow and wave soldering per JESD 22-B106 (275 °C, 10 s).

It delivers 500 W peak pulse power handling under 10/1000 µs waveform with derating above 25 °C ambient, and maintains clamping voltage ≤48.4 V up to 10 A IPPM - critical for safeguarding 3.3 V/5 V/24 V logic and interface circuits against ESD, inductive switching spikes, and lightning-induced surges.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	30 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 24 V nominal systems.
V_BR min/max	33.3 V / 36.8 V at 1 mA - Confirmed bidirectional breakdown range; ensures consistent turn-on across polarity and temperature.
V_C @ I_PPM	48.4 V at 10 A - Measured clamping voltage under 10/1000 µs surge; limits downstream voltage stress during transient events.
P_PPM	500 W - Peak pulse power rating; enables robust protection against repetitive 10/1000 µs surges at 0.01 % duty cycle.
I_D @ V_WM	1.0 µA - Reverse leakage at 30 V; negligible power loss and signal integrity impact in high-impedance monitoring paths.
T_J max	175 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments.
Package	DO-204AC (DO-15) - Standard axial-leaded package with UL 94 V-0 molded epoxy; compatible with legacy through-hole assembly and automated taping.

Pinout & Package

DO-204AC (DO-15) package: axial-leaded, cylindrical epoxy body, no polarity marking (bi-directional). Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102; meets JESD 201 Class 1A whisker test (E3 suffix).

Pin/Terminal	Circuit Role	Design Meaning
Anode/Cathode (symmetrical)	Bi-directional avalanche junction terminals	No functional distinction between leads; either terminal serves as input/output for transient energy absorption in either polarity.
Lead 1	External connection point	Provides mechanical and electrical interface to PCB trace; requires minimum 0.375" (9.5 mm) lead length for thermal derating compliance.
Lead 2	External connection point	Second mechanical/electrical interface; symmetric layout allows flexible board placement without orientation constraints.

Key Features

Feature	Design Value
Glass passivated chip junction	Enables stable V_BR tolerance and low leakage over 1000+ thermal cycles; critical for long-term reliability in unregulated environments.
500 W peak pulse power (10/1000 µs)	Supports MIL-STD-1275B and ISO 7637-2 Pulse 1/2/5a immunity requirements for 24 V vehicle electronics.
AEC-Q101 qualified	Validated for automotive under-hood applications including engine control modules and body electronics with extended temperature cycling.
RoHS-compliant E3 suffix	Meets JEDEC JS709A halogen-free and EU Directive 2011/65/EU requirements; suitable for consumer and industrial green procurement programs.
Low incremental surge resistance	Minimizes V_C overshoot during fast-rising transients (e.g., ESD >15 kV contact discharge), preserving signal integrity on high-speed sensor lines.

Applications

Industrial Motor Drives	Automotive Body Control Modules
Use Scenario: Protection of gate driver inputs and feedback sensing lines against inductive kickback from relay coils and solenoid loads. IC Role / Device Role / Timing Role: Bi-directional TVS clamp placed directly at connector entry points and IC pins to limit transient voltage to <48.4 V. Use Value: Prevents latch-up and permanent damage to 3.3 V microcontrollers and isolated gate drivers during 100 A/µs switching events.	Use Scenario: Safeguarding LIN bus transceivers and door module sensors from load dump and jump-start surges. IC Role / Device Role / Timing Role: Standoff-rated transient suppressor on bidirectional data lines and 12 V supply rails with symmetrical clamping behavior. Use Value: Maintains communication integrity during ISO 16750-2 Load Dump tests (up to 60 V, 400 ms) without requiring additional series impedance.
Industrial PLC I/O Modules	Smart Home Sensor Hubs
Use Scenario: Input protection for 24 V digital input cards exposed to field wiring transients from proximity switches and valve actuators. IC Role / Device Role / Timing Role: Primary overvoltage clamp on each channel, placed before optocoupler or Schmitt trigger input stage. Use Value: Enables >100,000 actuation cycles without degradation in leakage or clamping voltage due to glass-passivated junction stability.	Use Scenario: ESD protection for Z-Wave and Zigbee RF module antenna feeds and GPIO lines connected to touch buttons and motion sensors. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) bi-directional clamp integrated into compact PCB layouts near connectors. Use Value: Passes IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) without signal distortion or reset events in sub-GHz wireless subsystems.

Industrial Motor Drives

Automotive Body Control Modules

Use Scenario: Protection of gate driver inputs and feedback sensing lines against inductive kickback from relay coils and solenoid loads.

IC Role / Device Role / Timing Role: Bi-directional TVS clamp placed directly at connector entry points and IC pins to limit transient voltage to <48.4 V.

Use Value: Prevents latch-up and permanent damage to 3.3 V microcontrollers and isolated gate drivers during 100 A/µs switching events.

Use Scenario: Safeguarding LIN bus transceivers and door module sensors from load dump and jump-start surges.

IC Role / Device Role / Timing Role: Standoff-rated transient suppressor on bidirectional data lines and 12 V supply rails with symmetrical clamping behavior.

Use Value: Maintains communication integrity during ISO 16750-2 Load Dump tests (up to 60 V, 400 ms) without requiring additional series impedance.

Industrial PLC I/O Modules

Smart Home Sensor Hubs

Use Scenario: Input protection for 24 V digital input cards exposed to field wiring transients from proximity switches and valve actuators.

IC Role / Device Role / Timing Role: Primary overvoltage clamp on each channel, placed before optocoupler or Schmitt trigger input stage.

Use Value: Enables >100,000 actuation cycles without degradation in leakage or clamping voltage due to glass-passivated junction stability.

Use Scenario: ESD protection for Z-Wave and Zigbee RF module antenna feeds and GPIO lines connected to touch buttons and motion sensors.

IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) bi-directional clamp integrated into compact PCB layouts near connectors.

Use Value: Passes IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) without signal distortion or reset events in sub-GHz wireless subsystems.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient voltage suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ30CA	Same V_WM (30 V), lower P_PPM (400 W), SMA package (surface-mount)	Requires PCB redesign for SMT assembly; unsuitable for through-hole legacy systems.	Select when board space is constrained and reflow capability exists.
1.5KE30CA	Higher P_PPM (1500 W), larger DO-201AD package, same V_WM/V_C specs	Better suited for high-energy surge zones (e.g., AC mains input), but over-engineered for signal-line protection.	Select only where >1000 W surge immunity is mandated by system-level standards.

Compared with SMAJ30CA and 1.5KE30CA, the SA30C-E3/54 provides optimal balance of 500 W surge handling, DO-204AC through-hole compatibility, and AEC-Q101 qualification - making it ideal for cost-sensitive, high-reliability industrial and automotive signal-line protection without layout change.

Availability

SA30C-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and PLC I/O modules requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for SA30C-E3/54 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, automotive qualification, and industrial-grade performance.

The SAxxC series is part of Vishay's TRANSZORB® TVS family, engineered specifically for bi-directional transient suppression in harsh electromagnetic environments - targeting automotive, industrial automation, and telecom infrastructure applications.

FAQ

What is the polarity configuration of SA30C-E3/54?

The SA30C-E3/54 is a bi-directional TVS diode with symmetrical avalanche characteristics in both directions. It has no cathode marking and functions identically regardless of terminal orientation - making it ideal for AC-coupled or floating signal paths where polarity reversal may occur during transients.

Does SA30C-E3/54 meet AEC-Q101 requirements?

Yes, the SA30C-E3/54 is AEC-Q101 qualified per the Vishay datasheet (Document Number: 88378, Revision: 18-Sep-12). This qualification covers temperature cycling, humidity bias, mechanical shock, and ESD testing - confirming suitability for automotive under-hood and body electronics applications.

What is the maximum clamping voltage of SA30C-E3/54 at rated surge current?

The SA30C-E3/54 has a maximum clamping voltage (V_C) of 48.4 V at 10 A peak pulse current (I_PPM) under 10/1000 µs waveform conditions. This value is measured and guaranteed per the datasheet's ELECTRICAL CHARACTERISTICS table on page 2.

Can SA30C-E3/54 be used in place of a uni-directional TVS like SA30A-E3/54?

No - the SA30C-E3/54 is bi-directional and lacks polarity marking, while SA30A-E3/54 is uni-directional with cathode band. Substitution requires circuit review: SA30C-E3/54 may be used where bidirectional clamping is needed, but cannot replace SA30A-E3/54 in DC-biased applications requiring forward conduction blocking.

What soldering profiles are supported for SA30C-E3/54?

The SA30C-E3/54 supports standard lead-free reflow and wave soldering per JESD 22-B106: maximum solder dip temperature is 275 °C for 10 seconds. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102, ensuring reliable wetting and intermetallic formation without voiding or dewetting.

SA30C-E3/54 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: DO-204AC, DO-15, Axial

Series:: TransZorb®

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: Zener

Unidirectional Channels:: -

Bidirectional Channels:: 1

Voltage - Reverse Standoff (Typ):: 30V

Voltage - Breakdown (Min):: 33.3V

Voltage - Clamping (Max) @ Ipp:: 53.5V

Current - Peak Pulse (10/1000µs):: 9.3A

Power - Peak Pulse:: 500W

Power Line Protection:: No

Applications:: General Purpose

Capacitance @ Frequency:: -

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AC (DO-15)

SA30C-E3/54 FAQ

1.How can I place an order for SA30C-E3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for SA30C-E3/54 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SA30C-E3/54 reliable?

The price and inventory of SA30C-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA30C-E3/54 is usually 5 days.

3.What payment methods are accepted for SA30C-E3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA30C-E3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SA30C-E3/54?

SA30C-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SA30C-E3/54 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SA30C-E3/54?

For technical support, including SA30C-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA30C-E3/54 requirements.

6.How does Aetrix verify that SA30C-E3/54 is sourced from the original manufacturer or authorized distributors?

All SA30C-E3/54 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SA30C-E3/54 meets industry standards.

7.What is the process for return or replacement of SA30C-E3/54?

All SA30C-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA30C-E3/54, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SA30C-E3/54 part is unused and in its original packaging.

Return procedure for SA30C-E3/54:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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