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

Vishay General Semiconductor - Diodes Division SA36C-E3/73

Name: SA36C-E3/73
Brand: Vishay General Semiconductor - Diodes Division
SKU: SA36C-E3/73
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SA36C-E3/73

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

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

Datasheet:: SA36C-E3/73.pdf

Description:: TVS DIODE 36VWM 64.3VC DO204AC

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Product details

Overview

SA36C-E3/73 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 36 V stand-off voltage (V_WM), 40.0–44.2 V breakdown voltage (V_BR) at 1 mA, 500 W peak pulse power (10/1000 µs), 58.1 V maximum clamping voltage at 8.6 A, and AEC-Q101 qualification for automotive use.

For engineers reviewing the SA36C-E3/73 datasheet, SA36C-E3/73 pinout, SA36C-E3/73 application, or SA36C-E3/73 equivalent, this device is selected for robust ESD and surge protection in automotive sensor interfaces, industrial I/O lines, and telecom line cards where bidirectional clamping, low leakage (<1.0 µA at V_WM), and high surge current capability are required.

Technical Context

This bi-directional TVS operates symmetrically across both polarities, with identical V_BR, V_C, and I_PPM specifications in forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance under repetitive 10/1000 µs transients.

Designed for transient suppression per ISO 7637-2 and IEC 61000-4-5 standards, it delivers 8.6 A peak pulse current (I_PPM) at 58.1 V clamping while maintaining ≤1.0 µA reverse leakage at 36 V. The device is rated for continuous power dissipation of 3.0 W on an infinite heatsink and operates from −55 °C to +175 °C junction temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry.
V_BR (min/max)	40.0 V / 44.2 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events.
V_C @ I_PPM	58.1 V at 8.6 A - Clamped voltage during 500 W transient; limits stress on downstream ICs such as microcontrollers or transceivers.
P_PPM	500 W (10/1000 µs) - Peak surge handling capacity; supports common automotive and industrial surge test profiles.
I_D @ V_WM	≤1.0 µA - Ultra-low reverse leakage; avoids signal distortion or bias shift in high-impedance sensor or analog circuits.
T_J max.	+175 °C - Extended thermal rating enables placement near hot components or in under-hood automotive environments.
AEC-Q101	Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47.

Pinout & Package

Package: DO-204AC (DO-15), axial-leaded, molded epoxy case meeting UL 94 V-0. Matte tin-plated leads; no polarity marking (bi-directional).

Pin/Terminal	Circuit Role	Design Meaning
Anode/Cathode (symmetrical)	Bi-directional transient conduction path	Either lead serves as input/output; no cathode band; identical clamping in both directions.
Leads (2)	Connection interface to PCB	Solderable per J-STD-002/JESD 22-B102; withstands 275 °C dip for 10 s; JESD 201 Class 1A whisker compliant (E3 suffix).

Key Features

Feature	Design Value
Glass passivated chip junction	Ensures stable, repeatable breakdown voltage and long-term reliability under thermal cycling and humidity exposure.
500 W peak pulse power (10/1000 µs)	Handles high-energy surges typical of inductive load switching (e.g., solenoids, relays) without degradation.
Low incremental surge resistance	Minimizes voltage overshoot during fast-rising transients (e.g., ESD >15 kV), improving protection margin for sensitive ICs.
AEC-Q101 qualified	Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces.
RoHS-compliant (E3 suffix)	Meets EU Directive 2011/65/EU; suitable for commercial and automotive production with full material traceability.

Applications

Automotive Sensor Protection	Industrial Digital I/O Protection
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional clamping element placed at connector entry point to shunt surge energy before reaching signal conditioning circuitry. Use Value: Limits transient voltage to ≤58.1 V during 8.6 A surges, preserving integrity of 3.3 V/5 V microcontrollers and ADC front-ends.	Use Scenario: Shielding PLC digital input modules from field-induced surges on 24 V DC control lines exposed to relay coil back-EMF or lightning-induced coupling. IC Role / Device Role / Timing Role: Primary surge suppression device mounted directly at terminal block to absorb repetitive 500 W transients without derating. Use Value: Maintains ≤1.0 µA leakage at 36 V stand-off, preventing false triggering in high-impedance optocoupler input stages.
Telecom Line Interface	Consumer Power Adapter ESD Protection
Use Scenario: Safeguarding Ethernet PHY magnetics and PoE controller inputs against induced surges on outdoor telecom line cards per IEC 61000-4-5 Level 3. IC Role / Device Role / Timing Role: Secondary-level TVS deployed after gas discharge tube (GDT) to clamp residual voltage to safe levels for silicon-based receivers. Use Value: Achieves 58.1 V clamping at 8.6 A with <1 ns response time, reducing stress on 100BASE-TX transformer insulation and PHY ESD structures.	Use Scenario: ESD protection for USB-C and barrel jack inputs in AC/DC adapters subjected to ±8 kV contact discharge per IEC 61000-4-2. IC Role / Device Role / Timing Role: Fast-response bi-directional suppressor bridging input rectifier output to ground to prevent latch-up in primary-side controllers. Use Value: Withstands 500 W surges and operates up to +175 °C, enabling compact placement near heat-generating bridge rectifiers without thermal derating.

Automotive Sensor Protection

Industrial Digital I/O Protection

Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs.

IC Role / Device Role / Timing Role: Bi-directional clamping element placed at connector entry point to shunt surge energy before reaching signal conditioning circuitry.

Use Value: Limits transient voltage to ≤58.1 V during 8.6 A surges, preserving integrity of 3.3 V/5 V microcontrollers and ADC front-ends.

Use Scenario: Shielding PLC digital input modules from field-induced surges on 24 V DC control lines exposed to relay coil back-EMF or lightning-induced coupling.

IC Role / Device Role / Timing Role: Primary surge suppression device mounted directly at terminal block to absorb repetitive 500 W transients without derating.

Use Value: Maintains ≤1.0 µA leakage at 36 V stand-off, preventing false triggering in high-impedance optocoupler input stages.

Telecom Line Interface

Consumer Power Adapter ESD Protection

Use Scenario: Safeguarding Ethernet PHY magnetics and PoE controller inputs against induced surges on outdoor telecom line cards per IEC 61000-4-5 Level 3.

IC Role / Device Role / Timing Role: Secondary-level TVS deployed after gas discharge tube (GDT) to clamp residual voltage to safe levels for silicon-based receivers.

Use Value: Achieves 58.1 V clamping at 8.6 A with <1 ns response time, reducing stress on 100BASE-TX transformer insulation and PHY ESD structures.

Use Scenario: ESD protection for USB-C and barrel jack inputs in AC/DC adapters subjected to ±8 kV contact discharge per IEC 61000-4-2.

IC Role / Device Role / Timing Role: Fast-response bi-directional suppressor bridging input rectifier output to ground to prevent latch-up in primary-side controllers.

Use Value: Withstands 500 W surges and operates up to +175 °C, enabling compact placement near heat-generating bridge rectifiers without thermal derating.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ36CA	Same V_WM (36 V), lower P_PPM (400 W), SMA package (surface-mount), higher V_C (58.1 V → 59.0 V)	Preferred for space-constrained PCBs; requires reflow-compatible layout; lacks AEC-Q101 qualification	Select SMAJ36CA when board area is limited and automotive qualification is not required.
1.5KE36CA	Same V_WM (36 V), higher P_PPM (1500 W), DO-201AD package (larger axial), higher V_C (64.5 V), same AEC-Q101 option available (HE3 suffix)	Used where higher single-pulse energy absorption is needed (e.g., power supply input stages); less suitable for signal-line protection due to higher clamping	Choose 1.5KE36CA for primary-side AC/DC surge protection where 64.5 V clamping is acceptable and 1500 W rating is mandatory.

Compared with SA36C-E3/73, SMAJ36CA offers smaller footprint but reduced surge rating and no automotive qualification, while 1.5KE36CA provides triple the peak power at the cost of larger size and higher clamping voltage-making SA36C-E3/73 optimal for balanced performance in automotive and industrial signal-line protection.

Availability

SA36C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card designs requiring stable component supply, AEC-Q101 compliance, and consistent 500 W transient suppression performance.

Supply support for SA36C-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 protection devices with emphasis on reliability, efficiency, and application-specific optimization.

The SAxxC series is part of Vishay's TRANSZORB® TVS family, engineered specifically for bidirectional transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where symmetrical clamping and AEC-Q101 validation are critical.

FAQ

What is the polarity configuration of SA36C-E3/73?

The SA36C-E3/73 is a bi-directional TVS diode with symmetrical electrical characteristics in both directions. It has no polarity marking on the DO-204AC package, and either lead may be connected to the line or ground. This design enables identical clamping behavior for positive and negative transients, making SA36C-E3/73 ideal for protecting AC-coupled or differential signal paths without concern for orientation during assembly.

Does SA36C-E3/73 meet automotive reliability standards?

Yes, SA36C-E3/73 is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JESD22-A114. The "E3" suffix confirms RoHS compliance and JESD 201 Class 1A whisker resistance. These qualifications validate SA36C-E3/73 for under-hood and chassis-mounted automotive applications where long-term stability under thermal and mechanical stress is essential.

What is the maximum clamping voltage of SA36C-E3/73 under surge conditions?

The SA36C-E3/73 exhibits a maximum clamping voltage (V_C) of 58.1 V at its rated peak pulse current (I_PPM) of 8.6 A, tested with a 10/1000 µs waveform. This value represents the upper limit of voltage seen by downstream circuitry during a full-rated surge event. Engineers use this parameter to verify that protected ICs-such as 3.3 V or 5 V microcontrollers-remain within absolute maximum ratings when SA36C-E3/73 is correctly applied.

How does SA36C-E3/73 differ from uni-directional SA36A-E3/73?

SA36C-E3/73 is bi-directional with symmetrical V_BR, V_C, and I_PPM in both polarities, while SA36A-E3/73 is uni-directional and features a cathode band for polarity-sensitive placement. SA36C-E3/73 has no marking and supports AC or floating-line protection; SA36A-E3/73 is used where only one polarity of transient is expected (e.g., DC power rails). Their V_WM and P_PPM are identical, but SA36A-E3/73 supports 70 A IFSM and has VF = 3.5 V at 100 A-parameters irrelevant to SA36C-E3/73.

Can SA36C-E3/73 be used in surface-mount designs?

No, SA36C-E3/73 uses the axial DO-204AC (DO-15) package and is intended for through-hole mounting. For surface-mount equivalents with comparable 36 V stand-off and bi-directional operation, consider SMAJ36CA (SMA package, 400 W) or SMCJ36CA (SMC package, 1500 W). Substituting SA36C-E3/73 into an SMT layout would require mechanical adaptation and is not recommended; SA36C-E3/73 must be specified and placed as a through-hole component in PCB design.

SA36C-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):: 36V

Voltage - Breakdown (Min):: 40V

Voltage - Clamping (Max) @ Ipp:: 64.3V

Current - Peak Pulse (10/1000µs):: 7.8A

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)

SA36C-E3/73 FAQ

1.How can I place an order for SA36C-E3/73 through Aetrix?

Please submit a Request for Quotation (RFQ) for SA36C-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 SA36C-E3/73 reliable?

The price and inventory of SA36C-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 SA36C-E3/73 is usually 5 days.

3.What payment methods are accepted for SA36C-E3/73?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA36C-E3/73 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SA36C-E3/73?

SA36C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SA36C-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 SA36C-E3/73?

For technical support, including SA36C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA36C-E3/73 requirements.

6.How does Aetrix verify that SA36C-E3/73 is sourced from the original manufacturer or authorized distributors?

All SA36C-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 SA36C-E3/73 meets industry standards.

7.What is the process for return or replacement of SA36C-E3/73?

All SA36C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA36C-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 SA36C-E3/73 part is unused and in its original packaging.

Return procedure for SA36C-E3/73:

1.Submit a request within 90 days.

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

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