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

Vishay General Semiconductor - Diodes Division SA16A-E3/54

Name: SA16A-E3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: SA16A-E3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SA16A-E3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

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

Datasheet:: SA16A-E3/54.pdf

Description:: TVS DIODE 16VWM 26VC DO204AC

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Inventory:11,900

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Product details

Overview

SA16A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for circuit protection against ESD and surge events. It features 16 V stand-off voltage (V_WM), 17.8–19.7 V breakdown voltage (V_BR), 26.0 V clamping voltage (V_C) at 19.2 A peak pulse current, and 500 W peak pulse power rating with 10/1000 μs waveform - used in automotive sensor signal line protection.

For engineers reviewing the SA16A-E3/54 datasheet, SA16A-E3/54 pinout, SA16A-E3/54 application, or SA16A-E3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-15 mechanical data, clamping performance under surge conditions, and direct alternatives for board-level ESD hardening in industrial and automotive electronics.

Technical Context

The SA16A-E3/54 operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response (<1 ns) and low incremental surge resistance. Its 175 °C maximum junction temperature and -55 °C to +175 °C operating range support under-hood automotive deployment.

It complies with AEC-Q101 stress testing for automotive-grade reliability and meets UL 94 V-0 flammability requirements via molded epoxy encapsulation. The matte tin-plated leads are solderable per J-STD-002 and JESD 22-B102, with JESD 201 Class 1A whisker resistance confirmed by E3 suffix.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	16 V - Maximum continuous reverse operating voltage before clamping begins
V_BR (min/max)	17.8 V / 19.7 V at 1.0 mA - Ensures reliable avalanche conduction onset across production lot
V_C @ I_PPM	26.0 V at 19.2 A - Limits downstream IC voltage during 10/1000 μs transients to safe levels
P_PPM	500 W - Sustains high-energy surges without failure under 0.01% duty cycle
I_FSM	70 A - Withstands 10 ms half-sine surge pulses common in load-dump scenarios
T_J max	+175 °C - Enables placement near heat sources in engine control units and power modules
Package	DO-15 (DO-204AC) - Industry-standard axial leaded package compatible with automated through-hole assembly

Pinout & Package

DO-15 (DO-204AC) package: axial-leaded, molded epoxy body, 0.130–0.138 inch diameter, 1.0 inch minimum lead length. Cathode indicated by color band on one end.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry (unidirectional operation)	Connected to protected line side; conducts only during forward-biased surge events
Cathode	Avalanche clamping node	Connected to ground or low-impedance return path; initiates clamping when reverse voltage exceeds V_WM

Key Features

Feature	Design Value
Glass passivated junction	Enables stable V_BR tolerance and long-term reliability under thermal cycling
500 W peak pulse power (10/1000 μs)	Protects against ISO 7637-2 Pulse 1, 2a, and 5a transients in 12 V automotive systems
AEC-Q101 qualified	Validated for automotive use including temperature cycling, HTRB, and mechanical shock tests
UL 94 V-0 molding compound	Prevents flame propagation in enclosed enclosures meeting IEC 60664-1 insulation coordination
Matte tin plating, JESD 201 Class 1A	Eliminates tin whisker risk in high-reliability applications over 15+ year service life

Applications

Automotive Sensor Protection	Industrial PLC Input Protection
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., oxygen, throttle position) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between signal line and chassis ground. Use Value: Limits transient voltage to ≤26.0 V during 19.2 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs.	Use Scenario: Shielding 24 V DC digital input modules in programmable logic controllers from inductive kickback and field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact or optocoupler input stage. Use Value: Absorbs 500 W surge energy without degradation, maintaining <1 μA leakage at 16 V to preserve input threshold accuracy.
Consumer Power Adapter Protection	Telecom Line Interface Protection
Use Scenario: Safeguarding secondary-side feedback circuits and synchronous rectifier drivers in AC/DC adapters against AC line transients. IC Role / Device Role / Timing Role: Secondary-side transient suppressor across output rail and ground. Use Value: Clamps 10/1000 μs surges to 26.0 V while sustaining 70 A non-repetitive forward surge, enabling compact adapter designs.	Use Scenario: Front-end protection of RS-485/RS-232 transceivers in base station backhaul equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage unidirectional clamp on differential signal pair before receiver input. Use Value: Provides 26.0 V clamping with <1 ns response, preserving signal integrity up to 10 Mbps while meeting ITU-T K.20 immunity requirements.

Automotive Sensor Protection

Industrial PLC Input Protection

Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., oxygen, throttle position) from load dump and ESD in vehicle ECUs.

IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between signal line and chassis ground.

Use Value: Limits transient voltage to ≤26.0 V during 19.2 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs.

Use Scenario: Shielding 24 V DC digital input modules in programmable logic controllers from inductive kickback and field wiring surges.

IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact or optocoupler input stage.

Use Value: Absorbs 500 W surge energy without degradation, maintaining <1 μA leakage at 16 V to preserve input threshold accuracy.

Consumer Power Adapter Protection

Telecom Line Interface Protection

Use Scenario: Safeguarding secondary-side feedback circuits and synchronous rectifier drivers in AC/DC adapters against AC line transients.

IC Role / Device Role / Timing Role: Secondary-side transient suppressor across output rail and ground.

Use Value: Clamps 10/1000 μs surges to 26.0 V while sustaining 70 A non-repetitive forward surge, enabling compact adapter designs.

Use Scenario: Front-end protection of RS-485/RS-232 transceivers in base station backhaul equipment exposed to lightning-induced surges.

IC Role / Device Role / Timing Role: First-stage unidirectional clamp on differential signal pair before receiver input.

Use Value: Provides 26.0 V clamping with <1 ns response, preserving signal integrity up to 10 Mbps while meeting ITU-T K.20 immunity requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ16A-E3/5T	Same V_WM (16 V), but SMA package (SMT); lower I_PPM (17.4 A), same V_C (26.0 V)	Requires PCB rework for surface-mount layout; better for space-constrained designs	Select for automated SMT lines where board real estate is limited and thermal mass is sufficient
1.5KE16A	Higher P_PPM (1500 W), larger DO-201 package; V_C = 26.0 V at 57.7 A; no AEC-Q101 qualification	Used in non-automotive industrial power supplies; lacks automotive reliability validation	Select for higher-energy surge environments where qualification is not mandated and lead spacing allows DO-201

Compared with SMAJ16A-E3/5T and 1.5KE16A, the SA16A-E3/54 offers AEC-Q101 qualification and DO-15 through-hole compatibility - making it optimal for automotive ECU signal protection where mechanical robustness and qualification traceability are mandatory.

Availability

SA16A-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, and telecom line protection requiring stable component supply and full AEC-Q101 compliance.

Supply support for SA16A-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive qualification.

The SAxxA series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications.

FAQ

What is the clamping voltage of SA16A-E3/54 and how is it measured?

The SA16A-E3/54 has a maximum clamping voltage (V_C) of 26.0 V at 19.2 A peak pulse current (I_PPM) using a 10/1000 μs waveform. This value is measured per JEDEC standards and represents the voltage across the device during worst-case surge conduction - critical for ensuring downstream ICs remain within absolute maximum ratings. The SA16A-E3/54 maintains this clamping performance across its full operating temperature range.

Is SA16A-E3/54 qualified for automotive applications?

Yes, SA16A-E3/54 is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias, temperature cycling, and mechanical shock. Its E3 suffix confirms JESD 201 Class 1A whisker resistance, and UL 94 V-0 molding supports use in automotive ECUs. This makes SA16A-E3/54 suitable for engine control, body electronics, and ADAS sensor protection where qualification is mandatory.

What does the "E3/54" suffix mean in SA16A-E3/54?

The "E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD 201 Class 1A whisker resistance. The "/54" denotes the preferred package code for 13-inch paper tape and reel delivery, with 4000 units per reel. This ordering format ensures traceable, factory-verified packaging aligned with Vishay's standard logistics for SA16A-E3/54.

How does SA16A-E3/54 differ from bidirectional TVS diodes like SA16CA?

SA16A-E3/54 is unidirectional and features a cathode band for polarity-sensitive placement; SA16CA is bidirectional with no marking and symmetrical clamping in both directions. SA16A-E3/54 provides lower forward voltage drop (3.5 V at 100 A) and supports forward surge current (I_FSM = 70 A), whereas SA16CA does not specify I_FSM. Use SA16A-E3/54 where DC bias exists or forward conduction must be managed.

Can SA16A-E3/54 replace SA15A or SA17A in existing designs?

SA16A-E3/54 has V_WM = 16 V, positioned between SA15A (15 V) and SA17A (17 V). While V_BR and V_C scale accordingly, direct substitution requires verifying system-level margin: SA15A offers tighter clamping at lower voltage but reduced standoff headroom; SA17A increases standoff but raises clamping threshold. SA16A-E3/54 is not a drop-in replacement - design validation of transient let-through voltage is required before interchange.

SA16A-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:: Active

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 16V

Voltage - Breakdown (Min):: 17.8V

Voltage - Clamping (Max) @ Ipp:: 26V

Current - Peak Pulse (10/1000µs):: 19.2A

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)

SA16A-E3/54 FAQ

1.How can I place an order for SA16A-E3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for SA16A-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 SA16A-E3/54 reliable?

The price and inventory of SA16A-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 SA16A-E3/54 is usually 5 days.

3.What payment methods are accepted for SA16A-E3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA16A-E3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SA16A-E3/54?

SA16A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SA16A-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 SA16A-E3/54?

For technical support, including SA16A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA16A-E3/54 requirements.

6.How does Aetrix verify that SA16A-E3/54 is sourced from the original manufacturer or authorized distributors?

All SA16A-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 SA16A-E3/54 meets industry standards.

7.What is the process for return or replacement of SA16A-E3/54?

All SA16A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA16A-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 SA16A-E3/54 part is unused and in its original packaging.

Return procedure for SA16A-E3/54:

1.Submit a request within 90 days.

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

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