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

Vishay General Semiconductor - Diodes Division SA24C-E3/73

Name: SA24C-E3/73
Brand: Vishay General Semiconductor - Diodes Division
SKU: SA24C-E3/73
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SA24C-E3/73

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

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

Datasheet:: SA24C-E3/73.pdf

Description:: TVS DIODE 24VWM 43VC DO204AC

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Product details

Overview

SA24C-E3/73 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 24 V stand-off voltage (V_WM), 29.5 V maximum breakdown voltage (V_BR), and 500 W peak pulse power (10/1000 μs). It clamps transients to ≤38.9 V at 12.9 A peak pulse current and is AEC-Q101 qualified for automotive electronics protection.

For engineers reviewing the SA24C-E3/73 datasheet, SA24C-E3/73 pinout, SA24C-E3/73 application, or SA24C-E3/73 equivalent, this page delivers verified electrical parameters, DO-204AC terminal configuration, bi-directional clamping behavior, automotive-grade reliability data, and direct alternative part comparisons - all grounded in Vishay's official 88378 specification document.

Technical Context

The SA24C-E3/73 operates as a bi-directional avalanche diode with symmetrical clamping in both polarities, enabling transient suppression on AC lines or unidirectional signal paths without polarity constraints. Its glass-passivated junction ensures stable V_BR tolerance (±5 %) and low incremental surge resistance, critical for consistent clamping under repetitive 10/1000 μs surges.

Designed for high-reliability environments, it supports operating junction temperatures from –55 °C to +175 °C and meets JESD 201 Class 1A whisker resistance. The device exhibits no polarity marking - consistent with bi-directional TVS construction - and uses matte tin-plated leads compliant with J-STD-002 solderability standards.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	24 V - Maximum continuous reverse voltage before clamping begins; defines safe operating window for protected circuitry.
V_BR (min/max)	26.7 V / 29.5 V at 1.0 mA - Confirmed breakdown threshold range; ensures predictable turn-on across production lots.
V_C @ I_PPM	≤38.9 V at 12.9 A - Clamped voltage during 10/1000 μs surge; determines maximum stress imposed on downstream ICs.
P_PPM	500 W - Peak pulse power handling capability; validates robustness against IEC 61000-4-5 Level 4 surges.
I_D @ V_WM	≤1.0 μA - Reverse leakage at rated stand-off; guarantees minimal standby power loss and signal integrity.
T_J max.	+175 °C - Maximum junction temperature; enables deployment in under-hood automotive modules and industrial motor drives.
AEC-Q101	Qualified - Validated for automotive applications per stress test requirements including HTOL, TCT, and ESD.

Pinout & Package

Package: DO-204AC (DO-15), axial-leaded, molded epoxy case meeting UL 94 V-0 flammability rating. Matte tin-plated leads, 0.300" (7.6 mm) minimum lead length, 0.034" (0.86 mm) diameter.

Pin/Terminal	Circuit Role	Design Meaning
Anode/Cathode (unmarked)	Bi-directional avalanche junction	No polarity marking - terminals are functionally identical; connects across protected line-to-line or line-to-ground without orientation dependency.
Lead 1	Terminal A	One end of the symmetrical P-N junction; electrically interchangeable with Lead 2 for layout flexibility.
Lead 2	Terminal B	Second end of the symmetrical P-N junction; no functional distinction from Lead 1 in bi-directional operation.

Key Features

Feature	Design Value
Glass-passivated chip junction	Ensures stable V_BR over temperature and lifetime, with <±5 % tolerance and minimal drift under thermal cycling.
500 W peak pulse power (10/1000 μs)	Supports IEC 61000-4-5 surge immunity up to 4 kV (line-earth) without derating in standard PCB layouts.
AEC-Q101 qualification	Validates suitability for automotive powertrain, body control, and ADAS modules requiring extended temperature and reliability compliance.
Low incremental clamping resistance	Enables tight V_C – V_BR margin (≤12.2 V), reducing voltage overshoot on sensitive 24 V microcontrollers and CAN transceivers.
RoHS-compliant, matte tin plating	Meets J-STD-002 solderability and JESD 201 Class 1A whisker resistance, ensuring long-term interconnect reliability in reflow and wave soldering.

Applications

Automotive Power Distribution	Industrial Sensor Signal Lines
Use Scenario: Protection of 24 V supply rails in vehicle body control modules against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Bi-directional TVS clamp placed between battery rail and DC-DC input, absorbing >500 W transients without failure. Use Value: Prevents latch-up or destruction of downstream PMICs and microcontrollers during ISO 7637-2 Pulse 5a events.	Use Scenario: Shielding analog outputs (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Line-to-line TVS across differential sensor outputs, suppressing EFT bursts and electrostatic discharges. Use Value: Maintains signal fidelity by limiting clamped voltage to ≤38.9 V, well below ADC input damage thresholds.
Telecom Power Feeds	Consumer Appliance Motor Controls
Use Scenario: Surge protection on -48 V DC power feeds in telecom base station remote radio units. IC Role / Device Role / Timing Role: Bi-directional clamp across power pair, handling bidirectional lightning-induced surges on outdoor cabling. Use Value: Withstands repeated 10/1000 μs surges up to 500 W while maintaining <1.0 μA leakage at -48 V nominal.	Use Scenario: Input stage protection for BLDC motor driver ICs in smart washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Clamp across H-bridge supply inputs to suppress flyback energy from inductive motor windings. Use Value: Limits voltage overshoot to ≤38.9 V during commutation, preventing gate oxide rupture in 600 V MOSFETs.

Automotive Power Distribution

Industrial Sensor Signal Lines

Use Scenario: Protection of 24 V supply rails in vehicle body control modules against load dump and inductive switching spikes.

IC Role / Device Role / Timing Role: Bi-directional TVS clamp placed between battery rail and DC-DC input, absorbing >500 W transients without failure.

Use Value: Prevents latch-up or destruction of downstream PMICs and microcontrollers during ISO 7637-2 Pulse 5a events.

Use Scenario: Shielding analog outputs (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors in factory automation systems.

IC Role / Device Role / Timing Role: Line-to-line TVS across differential sensor outputs, suppressing EFT bursts and electrostatic discharges.

Use Value: Maintains signal fidelity by limiting clamped voltage to ≤38.9 V, well below ADC input damage thresholds.

Telecom Power Feeds

Consumer Appliance Motor Controls

Use Scenario: Surge protection on -48 V DC power feeds in telecom base station remote radio units.

IC Role / Device Role / Timing Role: Bi-directional clamp across power pair, handling bidirectional lightning-induced surges on outdoor cabling.

Use Value: Withstands repeated 10/1000 μs surges up to 500 W while maintaining <1.0 μA leakage at -48 V nominal.

Use Scenario: Input stage protection for BLDC motor driver ICs in smart washing machines and HVAC blowers.

IC Role / Device Role / Timing Role: Clamp across H-bridge supply inputs to suppress flyback energy from inductive motor windings.

Use Value: Limits voltage overshoot to ≤38.9 V during commutation, preventing gate oxide rupture in 600 V MOSFETs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ24CA	Same V_WM (24 V), lower P_PPM (400 W), SMA package (surface-mount)	Requires PCB rework for SMT layout; unsuitable for through-hole legacy designs or high-vibration mechanical mounting.	Select when board space is constrained and automated assembly is prioritized over mechanical robustness.
1.5KE24CA	Same V_WM (24 V), higher P_PPM (1500 W), DO-201AD package (larger, higher thermal mass)	Delivers greater surge margin but requires larger footprint and higher mounting torque; not AEC-Q101 qualified.	Select for industrial power supplies needing >500 W headroom where automotive qualification is not required.

Compared with SA24C-E3/73, SMAJ24CA offers compact SMT integration at reduced surge capacity, while 1.5KE24CA provides higher power handling in a less space-efficient through-hole package without automotive qualification - making SA24C-E3/73 the optimal balance of AEC-Q101 compliance, 500 W capability, and DO-15 mechanical stability.

Availability

SA24C-E3/73 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power feeds, and consumer appliance motor controls requiring stable component supply and long-term lifecycle support.

Supply support for SA24C-E3/73 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, MOSFETs, and passive components with emphasis on reliability, efficiency, and application-specific performance.

The SAxxC series is designed specifically for bi-directional transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where symmetrical clamping, AEC-Q101 validation, and stable DO-204AC packaging are mandatory.

FAQ

What is the clamping voltage of the SA24C-E3/73 at its rated peak pulse current?

The SA24C-E3/73 has a maximum clamping voltage (V_C) of 38.9 V at its rated peak pulse current (I_PPM) of 12.9 A under a 10/1000 μs waveform. This value is measured per Vishay Document Number 88378 and defines the upper voltage limit imposed on protected circuitry during surge events. The SA24C-E3/73 maintains this clamping performance across its full operating temperature range.

Is the SA24C-E3/73 suitable for automotive applications?

Yes, the SA24C-E3/73 is AEC-Q101 qualified per Vishay's documentation, confirming its reliability for automotive use cases including body electronics, power distribution, and sensor interfaces. It operates from –55 °C to +175 °C and passes stress tests such as high-temperature operating life and temperature cycling. The SA24C-E3/73 is explicitly listed in Vishay's AEC-Q101 qualified devices table.

Does the SA24C-E3/73 have polarity markings?

No, the SA24C-E3/73 does not have polarity markings because it is a bi-directional TVS diode. As confirmed in Vishay Document Number 88378, "no marking on bi-directional types." Both leads are functionally identical, allowing installation in either orientation across protected lines - a key advantage for line-to-line or floating signal protection where polarity is undefined.

What is the maximum reverse leakage current of the SA24C-E3/73 at its stand-off voltage?

The SA24C-E3/73 exhibits a maximum reverse leakage current (I_D) of 1.0 μA at its 24 V stand-off voltage (V_WM), as specified in the Electrical Characteristics table of Vishay Document Number 88378. This ultra-low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits such as sensor bias networks or precision reference paths.

What package type does the SA24C-E3/73 use, and is it RoHS-compliant?

The SA24C-E3/73 uses the DO-204AC (DO-15) axial-leaded package with molded epoxy housing rated UL 94 V-0. It carries the "E3" suffix, indicating RoHS compliance per Directive 2011/65/EU and JESD 201 Class 1A whisker resistance. Vishay confirms this in the Mechanical Data section of Document Number 88378, where "Base P/N-E3 – RoHS compliant, commercial grade" is explicitly stated.

SA24C-E3/73 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

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

Series:: TransZorb®

Packaging:: Tape & Box (TB)

Product Status:: Obsolete

Type:: Zener

Unidirectional Channels:: -

Bidirectional Channels:: 1

Voltage - Reverse Standoff (Typ):: 24V

Voltage - Breakdown (Min):: 26.7V

Voltage - Clamping (Max) @ Ipp:: 43V

Current - Peak Pulse (10/1000µs):: 11.6A

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)

SA24C-E3/73 FAQ

1.How can I place an order for SA24C-E3/73 through Aetrix?

Please submit a Request for Quotation (RFQ) for SA24C-E3/73 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 SA24C-E3/73 reliable?

The price and inventory of SA24C-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA24C-E3/73 is usually 5 days.

3.What payment methods are accepted for SA24C-E3/73?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA24C-E3/73 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SA24C-E3/73?

SA24C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SA24C-E3/73 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 SA24C-E3/73?

For technical support, including SA24C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA24C-E3/73 requirements.

6.How does Aetrix verify that SA24C-E3/73 is sourced from the original manufacturer or authorized distributors?

All SA24C-E3/73 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 SA24C-E3/73 meets industry standards.

7.What is the process for return or replacement of SA24C-E3/73?

All SA24C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA24C-E3/73, 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 SA24C-E3/73 part is unused and in its original packaging.

Return procedure for SA24C-E3/73:

1.Submit a request within 90 days.

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

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