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

Vishay General Semiconductor - Diodes Division SA6.0HE3/54

Name: SA6.0HE3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: SA6.0HE3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SA6.0HE3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

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

Datasheet:: SA6.0HE3/54.pdf

Description:: TVS DIODE 6VWM 11.4VC DO204AC

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Product details

Overview

SA6.0HE3/54 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for circuit protection against fast-rising voltage transients. It features a 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 600 A peak pulse current, 500 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for automotive reliability.

For engineers reviewing the SA6.0HE3/54 datasheet, SA6.0HE3/54 pinout, SA6.0HE3/54 application, or SA6.0HE3/54 equivalent, this device is selected for robust overvoltage protection in DC power rails, automotive ECUs, and industrial sensor interfaces where low clamping voltage, fast response (<1 ns), and high surge immunity are critical.

Technical Context

The SA6.0HE3/54 operates as a uni-directional avalanche diode with glass-passivated junction, enabling precise voltage clamping during transient events. Its 10/1000 μs waveform rating supports repetitive surge handling up to 0.01% duty cycle, and its 3.0 W steady-state power dissipation allows continuous operation under moderate leakage conditions.

Designed for unidirectional polarity, it uses a cathode band marking and delivers 3.5 V maximum forward voltage at 100 A surge. Thermal performance is rated for -55 °C to +175 °C junction temperature, with solderability validated per J-STD-002 and JESD 22-B102.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	6.0 V - Maximum continuous reverse operating voltage before clamping begins
V_BR (min/max)	6.67 V / 7.37 V at 10 mA - Ensures reliable turn-on within tight tolerance for predictable protection threshold
V_C @ I_PPM	48.5 V at 600 A - Limits downstream voltage stress during worst-case 10/1000 μs surge
P_PPM	500 W - Sustains high-energy transients without failure under standardized waveform
I_FSM	70 A - Withstands 10 ms half-sine surge, critical for inductive load switching events
T_J max	+175 °C - Enables use in under-hood automotive environments and high-ambient industrial settings
AEC-Q101	Qualified - Meets stress-test requirements for automotive electronic components including temperature cycling and HTRB

Pinout & Package

Package: DO-204AC (DO-15), axial leaded, molded epoxy case meeting UL 94 V-0; matte tin-plated leads, RoHS-compliant, AEC-Q101 qualified (HE3 suffix).

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry / low-impedance path during clamping	Connected to protected line's ground or low-side return; enables conduction when transient exceeds V_BR
Cathode	Reverse-biased terminal / clamping reference node	Marked with color band; tied to supply rail or signal line requiring protection; defines polarity and clamping direction

Key Features

Feature	Design Value
Glass passivated chip junction	Ensures stable V_BR tolerance and long-term reliability under thermal cycling and humidity exposure
500 W peak pulse power (10/1000 μs)	Provides immunity to ISO 7637-2 Pulse 1, 2a, and 5a transients in 12 V automotive systems
AEC-Q101 qualification	Validates suitability for automotive control modules, body electronics, and ADAS sensor interfaces
Low incremental surge resistance	Minimizes V_C overshoot during fast-rising transients (e.g., ESD, load dump), improving system-level robustness
Solderable per J-STD-002/JESD 22-B102	Supports automated reflow and wave soldering without degradation of electrical or mechanical integrity

Applications

Automotive Power Rail Protection	Industrial Sensor Interface Protection
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Uni-directional TVS placed between V_CC and GND to clamp positive-going surges above 6.0 V. Use Value: Clamps to ≤48.5 V at 600 A, preventing damage to 5 V LDOs and MCU I/Os while maintaining AEC-Q101 compliance.	Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure sensors from ESD and cable-induced transients. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across signal and return, leveraging fast <1 ns response to suppress sub-microsecond threats. Use Value: Limits transient voltage before op-amp input stages, preserving measurement accuracy and avoiding latch-up in precision signal chains.
Consumer Power Adapter Input Stage	Telecom DC Feeder Line Protection
Use Scenario: Safeguarding AC/DC adapter primary-side rectifier outputs from lightning-induced surges on mains-connected devices. IC Role / Device Role / Timing Role: Uni-directional TVS placed after bridge rectifier to absorb residual 10/1000 μs energy not filtered by X/Y caps. Use Value: Withstands 70 A non-repetitive forward surge and maintains 3.5 V V_F at 100 A, ensuring no thermal runaway during repeated line disturbances.	Use Scenario: Protecting PoE-powered Ethernet switches' 48 V DC feeder inputs from induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Standoff-rated TVS on DC input rail to clamp transients before DC-DC converters and PHY ICs. Use Value: 6.0 V V_WM allows compatibility with 5 V logic supervisors; 500 W rating meets IEC 61000-4-5 Level 3 (1 kV/2 Ω) requirements.

Automotive Power Rail Protection

Industrial Sensor Interface Protection

Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in engine control units against load dump and alternator ripple.

IC Role / Device Role / Timing Role: Uni-directional TVS placed between V_CC and GND to clamp positive-going surges above 6.0 V.

Use Value: Clamps to ≤48.5 V at 600 A, preventing damage to 5 V LDOs and MCU I/Os while maintaining AEC-Q101 compliance.

Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure sensors from ESD and cable-induced transients.

IC Role / Device Role / Timing Role: Low-capacitance TVS connected across signal and return, leveraging fast <1 ns response to suppress sub-microsecond threats.

Use Value: Limits transient voltage before op-amp input stages, preserving measurement accuracy and avoiding latch-up in precision signal chains.

Consumer Power Adapter Input Stage

Telecom DC Feeder Line Protection

Use Scenario: Safeguarding AC/DC adapter primary-side rectifier outputs from lightning-induced surges on mains-connected devices.

IC Role / Device Role / Timing Role: Uni-directional TVS placed after bridge rectifier to absorb residual 10/1000 μs energy not filtered by X/Y caps.

Use Value: Withstands 70 A non-repetitive forward surge and maintains 3.5 V V_F at 100 A, ensuring no thermal runaway during repeated line disturbances.

Use Scenario: Protecting PoE-powered Ethernet switches' 48 V DC feeder inputs from induced surges on outdoor cabling.

IC Role / Device Role / Timing Role: Standoff-rated TVS on DC input rail to clamp transients before DC-DC converters and PHY ICs.

Use Value: 6.0 V V_WM allows compatibility with 5 V logic supervisors; 500 W rating meets IEC 61000-4-5 Level 3 (1 kV/2 Ω) requirements.

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	DO-214AC (SMA) package; same V_WM/V_BR/V_C, but lower I_PPM (32.4 A vs. 600 A) and P_PPM (400 W)	Lower surge capacity limits use to low-energy signal-line protection, not power-rail applications	Select SMAJ6.0AHE3/A only when board space constraints require surface-mount and surge levels remain below 400 W.
1.5KE6.8A	DO-201AD package; higher V_WM (6.8 V), higher V_C (11.5 V at 43.3 A), lower P_PPM (1500 W but with 1.5 kW rating at 10/1000 μs)	Higher clamping voltage increases risk to downstream 5 V logic; suited for less sensitive 12–24 V systems	Choose 1.5KE6.8A only if V_WM margin allows 6.8 V standoff and system can tolerate 11.5 V clamping during surge.

Compared with SMAJ6.0AHE3/A and 1.5KE6.8A, SA6.0HE3/54 delivers superior surge current handling (600 A) and tighter V_BR tolerance in an AEC-Q101-qualified through-hole package-making it optimal for high-reliability automotive and industrial power rail protection where layout stability and mechanical robustness are prioritized.

Availability

SA6.0HE3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC feeder protection requiring stable component supply, long-lifecycle support, and AEC-Q101 traceability.

Supply support for SA6.0HE3/54 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and automotive-grade qualification.

The SAxxA series is part of Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where consistent clamping performance and AEC-Q101 validation are mandatory.

FAQ

What is the clamping voltage of SA6.0HE3/54 at its rated peak pulse current?

The SA6.0HE3/54 has a maximum clamping voltage (V_C) of 48.5 V at 600 A peak pulse current (I_PPM) under the standard 10/1000 μs waveform. This value is measured per Figure 7 in the Vishay datasheet 88378 and ensures downstream components see limited overvoltage during surge events. The SA6.0HE3/54 achieves this while maintaining low incremental surge resistance, directly supporting robust protection in 12 V automotive and industrial power systems.

Is SA6.0HE3/54 suitable for automotive applications?

Yes, SA6.0HE3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body control modules, and ADAS sensor interfaces. Its DO-204AC package, -55 °C to +175 °C operating range, and validation against temperature cycling, HTRB, and surge stress confirm compliance. The SA6.0HE3/54 meets key automotive transient standards such as ISO 7637-2 when applied with appropriate PCB layout and filtering.

What does the "HE3" suffix indicate in SA6.0HE3/54?

The "HE3" suffix in SA6.0HE3/54 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. It distinguishes the part from commercial-grade "E3" variants and confirms enhanced reliability for automotive and industrial applications. The SA6.0HE3/54 also features matte tin-plated leads and UL 94 V-0 molding compound, as specified in Vishay document 88378.

How does SA6.0HE3/54 differ from bi-directional TVS diodes like SA6.0CA?

SA6.0HE3/54 is uni-directional, with a cathode band marking and asymmetric conduction: it clamps only positive transients relative to ground, while blocking reverse voltage up to 6.0 V. In contrast, SA6.0CA is bi-directional, clamping transients of either polarity, with no polarity marking. The SA6.0HE3/54 is used where circuit topology requires defined polarity-such as DC power rail protection-while SA6.0CA suits AC-coupled or floating signal lines.

What is the maximum steady-state power dissipation for SA6.0HE3/54?

The SA6.0HE3/54 has a maximum steady-state power dissipation (P_D) of 3.0 W when mounted on an infinite heatsink at lead temperature (T_L) = 75 °C, per Figure 5 in Vishay datasheet 88378. Derating is required above 75 °C, reaching zero dissipation at 175 °C junction temperature. This rating supports continuous operation in thermally managed industrial and automotive environments where SA6.0HE3/54 serves as a reliable front-end protector.

SA6.0HE3/54 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:: 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)

SA6.0HE3/54 FAQ

1.How can I place an order for SA6.0HE3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for SA6.0HE3/54 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 SA6.0HE3/54 reliable?

The price and inventory of SA6.0HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA6.0HE3/54 is usually 5 days.

3.What payment methods are accepted for SA6.0HE3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA6.0HE3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SA6.0HE3/54?

SA6.0HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SA6.0HE3/54 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 SA6.0HE3/54?

For technical support, including SA6.0HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA6.0HE3/54 requirements.

6.How does Aetrix verify that SA6.0HE3/54 is sourced from the original manufacturer or authorized distributors?

All SA6.0HE3/54 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 SA6.0HE3/54 meets industry standards.

7.What is the process for return or replacement of SA6.0HE3/54?

All SA6.0HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA6.0HE3/54, 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 SA6.0HE3/54 part is unused and in its original packaging.

Return procedure for SA6.0HE3/54:

1.Submit a request within 90 days.

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

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