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

Vishay General Semiconductor - Diodes Division SMBJ160-E3/5B

Name: SMBJ160-E3/5B
Brand: Vishay General Semiconductor - Diodes Division
SKU: SMBJ160-E3/5B
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SMBJ160-E3/5B

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-214AA, SMB

Datasheet:: SMBJ160-E3/5B.pdf

Description:: TVS DIODE 160VWM 287VC DO214AA

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Product details

Overview

SMBJ160-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power rails and signal lines. It features a 160 V standoff voltage (V_WM), 178–197 V breakdown range (V_BR at 1 mA), 259 V clamping voltage (V_C) at 2.3 A peak pulse current, and 600 W peak pulse power rating per 10/1000 µs waveform - deployed in industrial motor drives, telecom power supplies, and automotive body control modules.

For engineers reviewing the SMBJ160-E3/5B datasheet, SMBJ160-E3/5B pinout, SMBJ160-E3/5B application, or SMBJ160-E3/5B equivalent, key selection criteria include its unidirectional polarity, SMB (DO-214AA) package compatibility with automated SMT placement, AEC-Q101 qualification eligibility (via HE3 suffix), and precise clamping performance under repetitive surge conditions.

Technical Context

This TVS diode operates as a voltage-clamped shunt protector: when reverse-biased voltage exceeds V_BR, it avalanches into low-impedance conduction to divert surge energy away from downstream ICs or MOSFETs. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repeated transients.

Thermal design relies on its R_θJA = 100 °C/W (typ.) and R_θJL = 20 °C/W (typ.), requiring minimum 5.0 mm × 5.0 mm copper pads per terminal for rated 600 W pulse handling. It supports surge currents up to 2.3 A (10/1000 µs) while maintaining clamping below 259 V - critical for protecting 150 V-rated power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	160 V - maximum continuous reverse operating voltage before clamping begins; sets upper limit for protected circuit's nominal rail voltage.
V_BR (min/max)	178 V / 197 V at 1 mA - guaranteed avalanche onset window; ensures predictable turn-on margin above V_WM.
V_C @ I_PPM	259 V at 2.3 A (10/1000 µs) - maximum clamped voltage seen by protected device during worst-case surge.
P_PPM	600 W - peak pulse power dissipation capability; defines energy-handling capacity for transient suppression.
I_FSM	100 A - non-repetitive forward surge current rating (8.3 ms half-sine); validates robustness against inrush or fault currents.
T_J max.	+150 °C - maximum junction temperature; enables operation in under-hood or high-ambient industrial environments.
Package	SMB (DO-214AA) - standardized 2-pin surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with J-STD-020 MSL Level 1 reflow.

Pinout & Package

Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band marking on one end; polarity-critical for unidirectional operation.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Low-side reference node	Connected to ground or low-voltage return path; completes clamping loop during reverse transient events.
Cathode	Protected line input	Connected to the line being protected (e.g., 160 V DC bus); avalanche conduction occurs when cathode-to-anode voltage exceeds V_BR.

Key Features

Feature	Design Value
600 W peak pulse power (10/1000 µs)	Enables reliable suppression of lightning-induced surges and inductive switching spikes in 48–200 V systems without thermal runaway.
Low incremental surge resistance	Minimizes V_C overshoot during fast-rising transients, improving protection margin for sensitive gate drivers and ADC front-ends.
Glass passivated junction	Ensures stable V_BR tolerance and long-term parameter stability across temperature and lifetime stress conditions.
MSL Level 1 (260 °C peak)	Supports standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning risk in high-volume SMT assembly.
AEC-Q101 qualification path	RoHS-compliant E3 suffix allows upgrade to HE3 variant for automotive applications requiring validated reliability (e.g., BCM, ADAS power supplies).

Applications

Industrial Motor Drives	Telecom Power Supplies
Use Scenario: Protection of IGBT gate driver supply rails against flyback voltage spikes from inductive load switching. IC Role / Device Role / Timing Role: Shunt clamping device placed between 15 V gate supply and ground, triggered within <1 ns upon overvoltage. Use Value: Limits gate-source voltage to ≤259 V during 600 W surges, preventing IGBT destruction while maintaining driver functionality.	Use Scenario: Input-stage surge suppression on 48 V DC-DC converter front-end exposed to telecom central office lightning transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk input rail, absorbing 10/1000 µs surges before upstream filtering. Use Value: Clamps 160 V nominal rail to 259 V during 2.3 A surge, preserving downstream rectifier and controller IC integrity.
Automotive Body Control Modules	Consumer Appliance Power Boards
Use Scenario: Protection of LIN bus transceivers and microcontroller I/O pins against load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS on 12 V supply line feeding MCU peripherals; cathode tied to V_CC, anode to chassis ground. Use Value: Withstands 100 A surge (8.3 ms) and clamps to 259 V, ensuring MCU reset logic remains functional after ISO 7637-2 Pulse 5a events.	Use Scenario: Overvoltage safeguard on AC-DC adapter output rails in smart home hubs and HVAC controllers. IC Role / Device Role / Timing Role: Final-stage clamp on regulated 5–24 V outputs, guarding against capacitor failure or regulator latch-up. Use Value: Provides fail-safe shutdown margin: clamping at 259 V prevents secondary damage to USB-PD controllers and Wi-Fi SoCs rated ≤30 V.

Industrial Motor Drives

Telecom Power Supplies

Use Scenario: Protection of IGBT gate driver supply rails against flyback voltage spikes from inductive load switching.

IC Role / Device Role / Timing Role: Shunt clamping device placed between 15 V gate supply and ground, triggered within <1 ns upon overvoltage.

Use Value: Limits gate-source voltage to ≤259 V during 600 W surges, preventing IGBT destruction while maintaining driver functionality.

Use Scenario: Input-stage surge suppression on 48 V DC-DC converter front-end exposed to telecom central office lightning transients.

IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk input rail, absorbing 10/1000 µs surges before upstream filtering.

Use Value: Clamps 160 V nominal rail to 259 V during 2.3 A surge, preserving downstream rectifier and controller IC integrity.

Automotive Body Control Modules

Consumer Appliance Power Boards

Use Scenario: Protection of LIN bus transceivers and microcontroller I/O pins against load dump and jump-start transients.

IC Role / Device Role / Timing Role: Unidirectional TVS on 12 V supply line feeding MCU peripherals; cathode tied to V_CC, anode to chassis ground.

Use Value: Withstands 100 A surge (8.3 ms) and clamps to 259 V, ensuring MCU reset logic remains functional after ISO 7637-2 Pulse 5a events.

Use Scenario: Overvoltage safeguard on AC-DC adapter output rails in smart home hubs and HVAC controllers.

IC Role / Device Role / Timing Role: Final-stage clamp on regulated 5–24 V outputs, guarding against capacitor failure or regulator latch-up.

Use Value: Provides fail-safe shutdown margin: clamping at 259 V prevents secondary damage to USB-PD controllers and Wi-Fi SoCs rated ≤30 V.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMBJ160A-M3/5B	Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package; same V_WM, V_BR, V_C, P_PPM.	No functional difference; selected where halogen-free materials are mandated by OEM environmental policies.	Direct drop-in replacement if halogen-free compliance is required; no layout or validation changes needed.
SMCJ160A-E3/2A	Same V_WM/V_BR/V_C ratings but in larger SMC (DO-214AB) package; higher thermal mass yields R_θJA = 50 °C/W vs. 100 °C/W.	Better sustained power handling in high-temperature enclosures; requires larger PCB footprint (7.11 mm × 6.22 mm vs. 5.59 mm × 4.06 mm).	Choose when ambient temperature exceeds 85 °C or when >600 W single-pulse derating margin is critical; not pin-compatible.

Compared with SMBJ160-E3/5B, the M3/5B variant offers identical protection performance with halogen-free construction, while the SMCJ160A-E3/2A provides superior thermal derating at the cost of board space - enabling optimized trade-offs between environmental compliance, thermal headroom, and layout density.

Availability

SMBJ160-E3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for SMBJ160-E3/5B 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 SMBJ series was engineered for high-energy transient suppression in compact SMT formats, targeting automotive, industrial, and telecom systems where space-constrained 600 W clamping performance is essential.

FAQ

What is the clamping voltage of SMBJ160-E3/5B at its rated peak pulse current?

The SMBJ160-E3/5B has a maximum clamping voltage (V_C) of 259 V when subjected to its specified peak pulse current of 2.3 A using the 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - a critical parameter for ensuring downstream components remain within safe operating limits.

Is SMBJ160-E3/5B suitable for automotive applications?

SMBJ160-E3/5B itself is commercial-grade, but Vishay offers the AEC-Q101 qualified variant SMBJ160AHE3_B/I (with HE3 suffix) in the same SMB package. The SMBJ160-E3/5B shares identical electrical characteristics and thermal behavior, making it a direct baseline for qualification; however, only the HE3/HM3 versions are certified for automotive use per AEC-Q101 stress testing requirements.

What does the "-E3/5B" suffix indicate in SMBJ160-E3/5B?

The "-E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads, while "/5B" specifies packaging in 13-inch diameter plastic tape and reel containing 3200 units. This format supports high-speed pick-and-place assembly and aligns with J-STD-002 solderability standards - confirming SMBJ160-E3/5B is optimized for automated manufacturing environments.

How does SMBJ160-E3/5B differ from bidirectional TVS diodes like SMBJ160CA?

SMBJ160-E3/5B is unidirectional and functions only under reverse bias, with polarity-sensitive mounting (cathode to protected line). In contrast, SMBJ160CA is bidirectional and symmetrical - suppressing surges of either polarity without regard to orientation. The unidirectional SMBJ160-E3/5B offers lower leakage and tighter V_BR tolerance, making it preferable for DC rail protection where polarity is fixed.

What is the maximum operating temperature for SMBJ160-E3/5B?

The SMBJ160-E3/5B has a maximum junction temperature (T_J) rating of +150 °C and an operating ambient range of -55 °C to +150 °C. Its thermal resistance values (R_θJA = 100 °C/W, R_θJL = 20 °C/W) require adherence to Vishay's recommended 5.0 mm × 5.0 mm copper pad layout to sustain full 600 W pulse ratings - especially critical in enclosed industrial enclosures or under-hood automotive locations.

SMBJ160-E3/5B Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: DO-214AA, SMB

Series:: TransZorb®

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 160V

Voltage - Breakdown (Min):: 178V

Voltage - Clamping (Max) @ Ipp:: 287V

Current - Peak Pulse (10/1000µs):: 2.1A

Power - Peak Pulse:: 600W

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-214AA (SMBJ)

SMBJ160-E3/5B FAQ

1.How can I place an order for SMBJ160-E3/5B through Aetrix?

Please submit a Request for Quotation (RFQ) for SMBJ160-E3/5B 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 SMBJ160-E3/5B reliable?

The price and inventory of SMBJ160-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ160-E3/5B is usually 5 days.

3.What payment methods are accepted for SMBJ160-E3/5B?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160-E3/5B transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SMBJ160-E3/5B?

SMBJ160-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SMBJ160-E3/5B 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 SMBJ160-E3/5B?

For technical support, including SMBJ160-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160-E3/5B requirements.

6.How does Aetrix verify that SMBJ160-E3/5B is sourced from the original manufacturer or authorized distributors?

All SMBJ160-E3/5B 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 SMBJ160-E3/5B meets industry standards.

7.What is the process for return or replacement of SMBJ160-E3/5B?

All SMBJ160-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160-E3/5B, 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 SMBJ160-E3/5B part is unused and in its original packaging.

Return procedure for SMBJ160-E3/5B:

1.Submit a request within 90 days.

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

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