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

Vishay General Semiconductor - Diodes Division SMA5J11-E3/5A

Name: SMA5J11-E3/5A
Brand: Vishay General Semiconductor - Diodes Division
SKU: SMA5J11-E3/5A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SMA5J11-E3/5A

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-214AC, SMA

Datasheet:: SMA5J11-E3/5A.pdf

Description:: TVS DIODE 11VWM 20.1VC DO214AC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SMA5J11-E3/5A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for high-energy surge protection on power and signal lines. It features a 11 V stand-off voltage (V_WM), 12.2–13.5 V breakdown voltage (V_BR), 18.2 V clamping voltage (V_C) at 27.5 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.

For engineers reviewing the SMA5J11-E3/5A datasheet, SMA5J11-E3/5A pinout, SMA5J11-E3/5A application, or SMA5J11-E3/5A equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, RoHS-compliant matte tin plating, MSL Level 1 moisture sensitivity, and thermal resistance of 80 °C/W (junction-to-ambient) under standard PCB pad layout.

Technical Context

This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds V_WM = 11 V, it avalanches at V_BR (min 12.2 V, max 13.5 V @ 1 mA), limiting transient-induced voltage to ≤18.2 V at 27.5 A IPPM. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 µA at V_WM).

Designed for automated SMT placement, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C), supports 40 A I_FSM (8.3 ms half-sine surge), and sustains operation from –55 °C to +150 °C junction temperature - enabling use in under-hood automotive modules and industrial motor drives where thermal cycling and ESD robustness are critical.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	11 V - maximum continuous reverse operating voltage before clamping begins
V_BR (min/max)	12.2 V / 13.5 V @ 1 mA - precise avalanche threshold range defining turn-on consistency
V_C @ I_PPM	18.2 V @ 27.5 A - clamped voltage during 10/1000 µs surge, directly limiting downstream device stress
P_PPM	500 W - peak surge power handling capacity under standardized transient waveform
I_FSM	40 A - non-repetitive forward surge current rating for inductive load switching events
T_J range	–55 °C to +150 °C - operational junction temperature window supporting under-hood and industrial environments

Pinout & Package

Package: DO-214AC (SMA), surface-mount, molded plastic case with UL 94 V-0 flammability rating; cathode indicated by band on one end.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal	Connected to lower-potential side in unidirectional clamp configuration; carries full surge current during forward conduction events
Cathode (banded end)	Reverse-biased clamping terminal	Connected to protected line; initiates avalanche breakdown when reverse voltage exceeds V_WM, shunting surge energy to ground

Key Features

Feature	Design Value
Glass-passivated junction	Ensures stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress
AEC-Q101 qualification	Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per JEDEC standards
MSL Level 1 (260 °C peak)	Enables single-reflow assembly without moisture-related popcorn failure or delamination
Low incremental surge resistance	Minimizes V_C overshoot during fast transients, improving protection margin for sensitive 12 V logic interfaces

Applications

Automotive Power Rail Protection	Industrial Sensor Interface Clamping
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp surges above 13.5 V. Use Value: Limits peak rail voltage to ≤18.2 V during 27.5 A transients, preventing damage to 16 V-rated DC-DC converters and microcontrollers.	Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to ADC inputs in PLC modules. IC Role / Device Role / Timing Role: Low-capacitance TVS on signal line to absorb ESD (IEC 61000-4-2) and inductive kickback from nearby solenoids. Use Value: Sub-1 µA leakage at 11 V ensures minimal offset error in precision 24-bit sigma-delta ADC front-ends.
Consumer Power Adapter Input Stage	MOSFET Gate Driver Surge Suppression
Use Scenario: Secondary-side overvoltage protection in 12 V wall adapters subjected to lightning-induced surges on AC mains. IC Role / Device Role / Timing Role: Standoff-rated TVS across output capacitor to clamp sustained overvoltage after primary-side regulation failure. Use Value: 500 W PPPM rating absorbs multi-millisecond overvoltage events without thermal runaway, unlike Zener-based solutions.	Use Scenario: Protecting high-side N-channel MOSFET gate drivers in half-bridge motor controllers from Miller-induced voltage spikes. IC Role / Device Role / Timing Role: Fast-response TVS between gate and source to clamp dv/dt-induced ringing exceeding V_GS,max. Use Value: 10 ns response time and 18.2 V clamping prevent gate oxide breakdown in 20 V-rated logic-level MOSFETs.

Automotive Power Rail Protection

Industrial Sensor Interface Clamping

Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator transients.

IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp surges above 13.5 V.

Use Value: Limits peak rail voltage to ≤18.2 V during 27.5 A transients, preventing damage to 16 V-rated DC-DC converters and microcontrollers.

Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to ADC inputs in PLC modules.

IC Role / Device Role / Timing Role: Low-capacitance TVS on signal line to absorb ESD (IEC 61000-4-2) and inductive kickback from nearby solenoids.

Use Value: Sub-1 µA leakage at 11 V ensures minimal offset error in precision 24-bit sigma-delta ADC front-ends.

Consumer Power Adapter Input Stage

MOSFET Gate Driver Surge Suppression

Use Scenario: Secondary-side overvoltage protection in 12 V wall adapters subjected to lightning-induced surges on AC mains.

IC Role / Device Role / Timing Role: Standoff-rated TVS across output capacitor to clamp sustained overvoltage after primary-side regulation failure.

Use Value: 500 W PPPM rating absorbs multi-millisecond overvoltage events without thermal runaway, unlike Zener-based solutions.

Use Scenario: Protecting high-side N-channel MOSFET gate drivers in half-bridge motor controllers from Miller-induced voltage spikes.

IC Role / Device Role / Timing Role: Fast-response TVS between gate and source to clamp dv/dt-induced ringing exceeding V_GS,max.

Use Value: 10 ns response time and 18.2 V clamping prevent gate oxide breakdown in 20 V-rated logic-level MOSFETs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMA5J11AHE3/5A	AEC-Q101 qualified variant with identical electrical specs; same DO-214AC package and marking code 5AZ	Required for automotive OEM designs requiring formal qualification evidence; same footprint and performance	Select SMA5J11AHE3/5A when AEC-Q101 documentation and traceability are mandatory
SMCJ11A-E3/57T	Higher 1500 W PPPM rating in larger DO-214AB (SMC) package; V_C = 18.2 V @ 83.3 A; same V_WM/V_BR range	Suitable for higher-energy surge environments (e.g., 48 V industrial buses); requires larger PCB area and different pad layout	Choose SMCJ11A-E3/57T only when 500 W is insufficient and board space allows DO-214AB footprint

Compared with SMA5J11AHE3/5A, the SMA5J11-E3/5A offers identical protection performance but lacks formal AEC-Q101 certification documentation; versus SMCJ11A-E3/57T, it trades surge capacity for compact DO-214AC size - making SMA5J11-E3/5A optimal for space-constrained 12 V automotive modules where 500 W suffices.

Availability

SMA5J11-E3/5A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface clamping, and consumer power adapter input stage applications requiring stable component supply, RoHS compliance, and MSL Level 1 reflow capability.

Supply support for SMA5J11-E3/5A 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, TVS devices, and optoelectronics with emphasis on reliability, power efficiency, and automotive-grade qualification.

The SMA5J series is engineered for high-power-density transient suppression in space-constrained surface-mount applications - targeting automotive electronics, industrial controls, and consumer power systems where robust 10/1000 µs surge immunity is required without increasing PCB footprint.

FAQ

What is the clamping voltage of the SMA5J11-E3/5A under standard test conditions?

The SMA5J11-E3/5A has a maximum clamping voltage (V_C) of 18.2 V when subjected to its rated peak pulse current (I_PPM) of 27.5 A using a 10/1000 µs waveform. This value is measured at T_A = 25 °C on standard 0.2" × 0.2" copper pads and defines the upper voltage limit imposed on protected circuitry during surge events. The SMA5J11-E3/5A maintains this clamping performance across its full operating temperature range.

Is the SMA5J11-E3/5A suitable for automotive applications?

The SMA5J11-E3/5A is RoHS-compliant and manufactured in an AEC-Q101-qualified process flow, but the "E3" suffix denotes commercial-grade qualification - not the "HE3" automotive-grade variant. While its electrical specs and thermal performance (–55 °C to +150 °C) meet many automotive requirements, formal AEC-Q101 certification documentation applies only to SMA5J11AHE3/5A. For production automotive use, SMA5J11-E3/5A should be validated per customer-specific reliability requirements.

What does the "5A" in SMA5J11-E3/5A indicate?

The "5A" in SMA5J11-E3/5A is the Vishay package code specifying 13-inch diameter plastic tape-and-reel delivery containing 7500 units. It does not denote electrical rating or variant - all SMA5J11-x variants share identical electrical characteristics. The "E3" suffix confirms RoHS compliance and matte tin plating meeting J-STD-002 solderability standards. The SMA5J11-E3/5A uses the same DO-214AC (SMA) package as other members of the family.

How does the SMA5J11-E3/5A compare to SMAJ11A in terms of surge capability?

The SMA5J11-E3/5A delivers 500 W peak pulse power (P_PPM) with a 10/1000 µs waveform, while the older SMAJ11A is rated for only 400 W under identical conditions. This 25 % higher surge capacity enables the SMA5J11-E3/5A to handle more energetic transients without degradation. Both share the same DO-214AC package, V_WM = 11 V, and V_C = 18.2 V, but the SMA5J11-E3/5A's improved construction supports longer service life in high-stress environments.

What is the maximum reverse leakage current for the SMA5J11-E3/5A at its stand-off voltage?

The SMA5J11-E3/5A exhibits a maximum reverse leakage current (I_D) of 1.0 µA when biased at its rated stand-off voltage (V_WM) of 11 V and measured at T_A = 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes standby power loss in always-on automotive modules. The SMA5J11-E3/5A maintains leakage below 5 µA up to 125 °C junction temperature per thermal derating curves.

SMA5J11-E3/5A Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: DO-214AC, SMA

Series:: TransZorb®

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 11V

Voltage - Breakdown (Min):: 12.2V

Voltage - Clamping (Max) @ Ipp:: 20.1V

Current - Peak Pulse (10/1000µs):: 24.9A

Power - Peak Pulse:: 500W

Power Line Protection:: No

Applications:: General Purpose

Capacitance @ Frequency:: -

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AC (SMA)

SMA5J11-E3/5A FAQ

1.How can I place an order for SMA5J11-E3/5A through Aetrix?

Please submit a Request for Quotation (RFQ) for SMA5J11-E3/5A 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 SMA5J11-E3/5A reliable?

The price and inventory of SMA5J11-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J11-E3/5A is usually 5 days.

3.What payment methods are accepted for SMA5J11-E3/5A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J11-E3/5A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SMA5J11-E3/5A?

SMA5J11-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SMA5J11-E3/5A 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 SMA5J11-E3/5A?

For technical support, including SMA5J11-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J11-E3/5A requirements.

6.How does Aetrix verify that SMA5J11-E3/5A is sourced from the original manufacturer or authorized distributors?

All SMA5J11-E3/5A 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 SMA5J11-E3/5A meets industry standards.

7.What is the process for return or replacement of SMA5J11-E3/5A?

All SMA5J11-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J11-E3/5A, 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 SMA5J11-E3/5A part is unused and in its original packaging.

Return procedure for SMA5J11-E3/5A:

1.Submit a request within 90 days.

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

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