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

Vishay General Semiconductor - Diodes Division SA6.0HE3/73

Name: SA6.0HE3/73
Brand: Vishay General Semiconductor - Diodes Division
SKU: SA6.0HE3/73
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SA6.0HE3/73

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

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

Datasheet:: SA6.0HE3/73.pdf

Description:: TVS DIODE 6VWM 11.4VC DO204AC

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Product details

Overview

SA6.0HE3/73 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for circuit protection against ESD and surge transients. It features 6.0 V stand-off voltage (V_WM), 6.67–7.37 V breakdown voltage (V_BR) at 10 mA, 48.5 V clamping voltage (V_C) at 48.5 A peak pulse current, 500 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for automotive reliability.

For engineers reviewing the SA6.0HE3/73 datasheet, SA6.0HE3/73 pinout, SA6.0HE3/73 application, or SA6.0HE3/73 equivalent, this device is selected for robust overvoltage protection on DC power rails and low-voltage signal lines where fast response (<1 ns), low clamping ratio, and high surge immunity are required in automotive ECUs, industrial sensors, and power supply inputs.

Technical Context

The SA6.0HE3/73 operates as a uni-directional avalanche diode with glass-passivated junction, enabling sub-nanosecond response to transient events. Its clamping behavior is defined by a 10/1000 μs waveform, delivering 48.5 V clamping at 48.5 A IPPM while maintaining 6.0 V reverse stand-off to avoid false triggering during normal operation.

Thermal performance is rated for -55 °C to +175 °C junction temperature, with 3.0 W steady-state power dissipation on infinite heatsink at TL = 75 °C. The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, supporting automotive under-hood and body-control module deployments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	6.0 V - Maximum continuous reverse operating voltage before clamping begins; ensures no conduction during nominal 5 V rail operation.
V_BR (min/max)	6.67 V / 7.37 V at 10 mA - Confirmed avalanche onset range; guarantees reliable turn-on within ±5.5% tolerance.
V_C @ I_PPM	48.5 V at 48.5 A - Clamped voltage during 500 W transient; limits downstream IC stress to safe levels per IEC 61000-4-5 Level 4.
P_PPM	500 W - Peak pulse power handling with 10/1000 μs waveform; supports repetitive surges at 0.01% duty cycle.
I_FSM	70 A - Non-repetitive forward surge rating (10 ms half-sine); protects against inrush or load-dump events in automotive 12 V systems.
T_J max	+175 °C - Maximum junction temperature; enables placement near heat sources in engine control units without derating.
Package	DO-204AC (DO-15) - Standard axial-leaded through-hole package with matte tin-plated leads, UL 94 V-0 molding compound.

Pinout & Package

DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode band marking. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102. Polarity indicated by color band at cathode end.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry / Surge return path	Connected to protected line's ground or low-side reference; completes clamping loop during positive transients.
Cathode	Reverse-biased terminal / Clamping node	Connected to protected line (e.g., 5 V rail); conducts avalanche current when voltage exceeds V_WM.

Key Features

Feature	Design Value
Glass passivated chip junction	Enables stable, repeatable avalanche characteristics over lifetime and temperature; eliminates surface leakage paths.
500 W peak pulse power (10/1000 μs)	Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without degradation in automotive and industrial environments.
AEC-Q101 qualified	Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces per stress test requirements.
Low incremental surge resistance	Minimizes V_C – V_BR differential (clamping ratio ~7.3×), reducing voltage overshoot across protected ICs.
Solder dip 275 °C max. (10 s)	Supports standard wave-soldering processes without parametric shift or mechanical damage to the epoxy body.

Applications

Automotive Power Rail Protection	Industrial Sensor Interface Protection
Use Scenario: Protecting 5 V microcontroller power input in an automotive door module exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Uni-directional TVS placed between V_CC and GND to clamp transients above 6.0 V before they reach the MCU's internal LDO. Use Value: Limits peak voltage to 48.5 V during 48.5 A surge, preventing latch-up or gate oxide damage in 5 V logic devices.	Use Scenario: Shielding analog output of a pressure sensor in factory automation equipment from ESD and inductive switching noise. IC Role / Device Role / Timing Role: TVS connected across sensor's V_OUT–GND pins to suppress fast transients induced by nearby relay coils or motor drives. Use Value: Sub-nanosecond response ensures clamping occurs before sensitive op-amp input stages experience overstress, preserving measurement accuracy.
DC Power Supply Input Protection	USB Port VBUS Line Protection
Use Scenario: Safeguarding input stage of a 12 V wall adapter secondary-side rectifier against lightning-induced surges. IC Role / Device Role / Timing Role: Placed after bulk capacitor but before regulator IC to absorb energy before it propagates into regulation circuitry. Use Value: 500 W rating handles multi-pulse surges common in unfiltered AC/DC front ends; DO-15 footprint allows easy integration into existing layouts.	Use Scenario: Adding secondary-level surge protection on USB 2.0 VBUS line in embedded host controller design. IC Role / Device Role / Timing Role: TVS mounted directly at USB connector to shunt ESD (IEC 61000-4-2 ±15 kV contact) away from USB PHY transceiver. Use Value: 6.0 V V_WM avoids interference with 5 V nominal VBUS; clamping at 48.5 V prevents PHY latch-up during fast ESD events.

Automotive Power Rail Protection

Industrial Sensor Interface Protection

Use Scenario: Protecting 5 V microcontroller power input in an automotive door module exposed to load dump and ISO 7637-2 pulses.

IC Role / Device Role / Timing Role: Uni-directional TVS placed between V_CC and GND to clamp transients above 6.0 V before they reach the MCU's internal LDO.

Use Value: Limits peak voltage to 48.5 V during 48.5 A surge, preventing latch-up or gate oxide damage in 5 V logic devices.

Use Scenario: Shielding analog output of a pressure sensor in factory automation equipment from ESD and inductive switching noise.

IC Role / Device Role / Timing Role: TVS connected across sensor's V_OUT–GND pins to suppress fast transients induced by nearby relay coils or motor drives.

Use Value: Sub-nanosecond response ensures clamping occurs before sensitive op-amp input stages experience overstress, preserving measurement accuracy.

DC Power Supply Input Protection

USB Port VBUS Line Protection

Use Scenario: Safeguarding input stage of a 12 V wall adapter secondary-side rectifier against lightning-induced surges.

IC Role / Device Role / Timing Role: Placed after bulk capacitor but before regulator IC to absorb energy before it propagates into regulation circuitry.

Use Value: 500 W rating handles multi-pulse surges common in unfiltered AC/DC front ends; DO-15 footprint allows easy integration into existing layouts.

Use Scenario: Adding secondary-level surge protection on USB 2.0 VBUS line in embedded host controller design.

IC Role / Device Role / Timing Role: TVS mounted directly at USB connector to shunt ESD (IEC 61000-4-2 ±15 kV contact) away from USB PHY transceiver.

Use Value: 6.0 V V_WM avoids interference with 5 V nominal VBUS; clamping at 48.5 V prevents PHY latch-up during fast ESD events.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ6.0AHE3/A	Same V_WM (6.0 V), identical DO-214AC (SMA) package; 48.4 V V_C at 48.5 A, but lower 400 W P_PPM.	Surface-mount alternative; requires PCB rework for SMT assembly; not drop-in compatible with through-hole layout.	Select for space-constrained designs where automated assembly and smaller footprint outweigh manual soldering needs.
1N6105A	Same DO-204AC package and 6.0 V V_WM, but lower 300 W P_PPM and higher 53.3 V V_C at 30 A IPPM.	Legacy industrial-grade part without AEC-Q101 qualification; unsuitable for automotive production programs.	Acceptable for cost-sensitive non-automotive applications where surge severity is limited to IEC 61000-4-5 Level 2.

Compared with SMAJ6.0AHE3/A and 1N6105A, the SA6.0HE3/73 uniquely delivers 500 W surge capability in a qualified through-hole package-enabling direct replacement in legacy automotive harnesses while meeting modern EMC robustness requirements without layout change.

Availability

SA6.0HE3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor modules, and DC power supply inputs requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.

Supply support for SA6.0HE3/73 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.

The SAxxA series is engineered specifically for transient voltage suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure applications where high-energy surge immunity and long-term parametric stability are critical.

FAQ

What is the maximum clamping voltage of the SA6.0HE3/73 under a 10/1000 µs surge?

The SA6.0HE3/73 has a maximum clamping voltage (V_C) of 48.5 V when subjected to its rated peak pulse current of 48.5 A using the standardized 10/1000 µs waveform. This value is measured per Figure 7 in the Vishay document 88378 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The SA6.0HE3/73 maintains this clamping performance across its full operating temperature range.

Is the SA6.0HE3/73 suitable for automotive applications?

Yes, the SA6.0HE3/73 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood and body electronics. Its DO-204AC package, 175 °C maximum junction temperature, and JESD 201 Class 2 whisker resistance meet stringent automotive reliability requirements. The SA6.0HE3/73 is commonly deployed in engine control modules, lighting drivers, and infotainment power supplies where ISO 7637-2 and IEC 61000-4-5 compliance is mandatory.

What does the "HE3" suffix indicate in SA6.0HE3/73?

The "HE3" suffix in SA6.0HE3/73 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. It distinguishes this variant from commercial-grade "E3" versions and confirms enhanced process controls for automotive deployment. The "73" refers to the packaging configuration (7-inch reel, 3000 pcs), not electrical or thermal parameters. All SA6.0HE3/73 units share identical electrical specs with other SA6.0HE3 variants.

How does the SA6.0HE3/73 compare to bi-directional TVS diodes like SA6.0CA?

The SA6.0HE3/73 is uni-directional and intended for DC power line protection where polarity is fixed, offering tighter V_BR tolerance and lower V_C than its bi-directional counterpart SA6.0CA (which has V_C = 10.3 V). Unlike SA6.0CA, the SA6.0HE3/73 includes a cathode band for orientation and cannot protect AC or bidirectional signal lines. Its design prioritizes low clamping on positive transients in grounded systems.

Can the SA6.0HE3/73 be used in parallel for higher surge current handling?

No-parallel connection of SA6.0HE3/73 devices is not recommended due to mismatched avalanche characteristics causing current imbalance and premature failure. For higher surge ratings, select a single higher-power TVS (e.g., SA10A or SMA6.0AHE3/A) or implement staged protection with upstream current-limiting resistors. The SA6.0HE3/73 is characterized and tested as a standalone device; parallel operation voids AEC-Q101 qualification and violates Vishay's application guidance in document 88378.

SA6.0HE3/73 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:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 6V

Voltage - Breakdown (Min):: 6.67V

Voltage - Clamping (Max) @ Ipp:: 11.4V

Current - Peak Pulse (10/1000µs):: 43.9A

Power - Peak Pulse:: 500W

Power Line Protection:: No

Applications:: -

Capacitance @ Frequency:: -

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

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

SA6.0HE3/73 FAQ

1.How can I place an order for SA6.0HE3/73 through Aetrix?

Please submit a Request for Quotation (RFQ) for SA6.0HE3/73 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 SA6.0HE3/73 reliable?

The price and inventory of SA6.0HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA6.0HE3/73 is usually 5 days.

3.What payment methods are accepted for SA6.0HE3/73?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA6.0HE3/73 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SA6.0HE3/73?

SA6.0HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SA6.0HE3/73 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 SA6.0HE3/73?

For technical support, including SA6.0HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA6.0HE3/73 requirements.

6.How does Aetrix verify that SA6.0HE3/73 is sourced from the original manufacturer or authorized distributors?

All SA6.0HE3/73 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 SA6.0HE3/73 meets industry standards.

7.What is the process for return or replacement of SA6.0HE3/73?

All SA6.0HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA6.0HE3/73, 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 SA6.0HE3/73 part is unused and in its original packaging.

Return procedure for SA6.0HE3/73:

1.Submit a request within 90 days.

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

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