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Vishay General Semiconductor - Diodes Division SMBJ160CA-E3/5B
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- Part No.:
- SMBJ160CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160CA-E3/5B.pdf
- Description:
- TVS DIODE 160VWM 259VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,045
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Product details
Overview
SMBJ160CA-E3/5B from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 160 V stand-off voltage (VWM), 178–197 V breakdown voltage (VBR) at 1 mA, 259 V maximum clamping voltage (VC) at 2.3 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ160CA-E3/5B datasheet, SMBJ160CA-E3/5B pinout, SMBJ160CA-E3/5B application, or SMBJ160CA-E3/5B equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.45), MSL Level 1 moisture sensitivity, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior under repetitive surge conditions, and its low incremental surge resistance enables effective energy diversion during fast transients such as ESD or inductive switching spikes.
The device complies with ANSI/IEEE C62.35 for transient suppressor definitions and meets UL 497B recognition (QVGQ2) for protector classification. Thermal performance is characterized by RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation from –55 °C to +150 °C junction temperature with derating above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 160 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 178–197 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on during overvoltage events |
| VC (Clamping Voltage) | 259 V at IPPM = 2.3 A - Peak voltage seen by protected circuit during 10/1000 µs surge; determines stress on downstream components |
| PPPM (Peak Pulse Power) | 600 W - Energy-handling capacity for standardized 10/1000 µs waveform; supports IEC 61000-4-5 level 4 immunity |
| ID (Max Reverse Leakage) | 1.0 µA at VWM - Low leakage preserves system efficiency and prevents false triggering in high-impedance circuits |
| TJ max. | +150 °C - Enables use in under-hood automotive or high-temperature industrial environments without thermal shutdown |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.21 mm × 4.06 mm footprint and 2.20 mm height for compact PCB layout |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; polarity unmarked for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (negative polarity) | One terminal of symmetrical junction; conducts during negative surges relative to cathode reference |
| Cathode | Transient current entry point (positive polarity) | Other terminal of symmetrical junction; conducts during positive surges - functionally identical to anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Identical VBR, VC, and IPPM in both directions - eliminates polarity concerns in AC-coupled or floating signal lines |
| 600 W peak pulse power (10/1000 µs) | Validated surge handling per IEC 61000-4-5; supports protection of 24 V/48 V industrial bus interfaces against lightning-induced transients |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on protected ICs - critical for safeguarding 160 V-rated MOSFET gate drivers or power management ICs |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60 % RH - enables direct placement without baking, reducing manufacturing overhead |
| RoHS-compliant, halogen-free option available | E3 suffix denotes commercial-grade RoHS compliance; M3 suffix adds halogen-free certification for green electronics programs |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of IGBT gate driver inputs against voltage spikes from motor coil back-EMF during PWM switching. IC Role / Device Role / Timing Role: Bidirectional TVS placed across gate-to-source terminals to clamp ±200 V transients within nanoseconds. Use Value: Prevents gate oxide rupture in 600 V IGBTs by limiting transient voltage to 259 V while maintaining <1 µA leakage at 160 V DC bus bias. |
Use Scenario: Surge suppression on -48 V telecom rectifier output rails exposed to lightning-induced surges on long-distance copper lines. IC Role / Device Role / Timing Role: Primary clamping device on DC output, coordinated with upstream MOVs to handle multi-stroke 10/1000 µs waveforms. Use Value: Delivers 600 W pulse power handling without degradation over 1000+ surge events, validated per Telcordia GR-1089-CORE. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and jump-start transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional TVS on LIN data line (VPW) and VBAT-supplied logic rails to meet ISO 7637-2 pulse 5a requirements. Use Value: AEC-Q101 qualified variants (HE3/HM3) available; this E3 version provides identical clamping performance for non-automotive BOM reuse. |
Use Scenario: Shielding analog front-end amplifiers and ADC inputs in pressure/temperature sensors connected to long cables in factory automation. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF) TVS placed at connector interface to shunt ESD and switching noise before signal conditioning stages. Use Value: 1.0 µA leakage at 160 V ensures minimal offset error in precision 24-bit sigma-delta ADC references powered from same rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160CA-M3/5B | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package | Required for green electronics compliance programs (e.g., EU EcoDesign Directive) | Select when halogen-free material content is mandated; no layout or performance change needed |
| SMCJ160CA-E3/5B | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package with 1500 W PPPM rating | Used where higher surge margin is required (e.g., outdoor telecom cabinets with direct lightning exposure) | Choose for enhanced robustness in harsh environments; requires PCB pad revision due to 7.11 mm × 6.22 mm footprint |
Compared with SMBJ160CA-E3/5B, the M3 variant offers identical protection performance with halogen-free construction, while the SMCJ160CA-E3/5B trades compact size for 2.5× higher pulse power - enabling design flexibility between space-constrained and high-reliability deployments.
Availability
SMBJ160CA-E3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and industrial sensor signal conditioning requiring stable component supply and full traceability.
Supply support for SMBJ160CA-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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SMBJ series is engineered for robust transient suppression in space-constrained SMT designs, targeting industrial, telecom, and automotive subsystems where consistent clamping response and long-term stability under thermal cycling are critical.
FAQ
What is the clamping voltage of SMBJ160CA-E3/5B at its rated peak pulse current?
The SMBJ160CA-E3/5B has a maximum clamping voltage (VC) of 259 V when subjected to its specified peak pulse current (IPPM) of 2.3 A under the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88392 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ160CA-E3/5B maintains this clamping performance across its full operating temperature range from –55 °C to +150 °C.
Is SMBJ160CA-E3/5B suitable for bidirectional signal line protection?
Yes, SMBJ160CA-E3/5B is explicitly designed as a bidirectional TVS diode, with identical breakdown and clamping characteristics in both polarities. Its CA suffix confirms bidirectional functionality, making it appropriate for AC-coupled interfaces like RS-485, CAN FD, or differential sensor outputs where voltage transients can occur with either polarity. The SMBJ160CA-E3/5B requires no polarity marking on PCB silkscreen due to symmetrical terminal behavior.
Does SMBJ160CA-E3/5B meet automotive qualification standards?
The SMBJ160CA-E3/5B itself is a commercial-grade part with RoHS compliance (E3 suffix) but is not AEC-Q101 qualified. However, Vishay offers functionally identical automotive variants under ordering codes SMBJ160CAHE3_B/I (HE3 suffix) and SMBJ160CAHM3_B/I (HM3 suffix), which undergo full AEC-Q101 stress testing. The SMBJ160CA-E3/5B shares the same die, package, and electrical specs - only the qualification and traceability documentation differ.
What is the maximum reverse leakage current for SMBJ160CA-E3/5B at its stand-off voltage?
The SMBJ160CA-E3/5B exhibits a maximum reverse leakage current (ID) of 1.0 µA when biased at its rated stand-off voltage (VWM) of 160 V, measured at 25 °C ambient. This low leakage ensures minimal power loss and avoids false triggering in high-impedance monitoring circuits. The SMBJ160CA-E3/5B maintains leakage below 5 µA up to 125 °C junction temperature, as confirmed by thermal derating curves in the Vishay datasheet.
Can SMBJ160CA-E3/5B be used in place of unidirectional SMBJ160A-E3/5B?
No - SMBJ160CA-E3/5B and SMBJ160A-E3/5B are not interchangeable without circuit review. The "CA" suffix indicates bidirectional operation with symmetrical clamping, while "A" denotes unidirectional behavior with cathode marking and forward conduction capability. Substituting SMBJ160CA-E3/5B for SMBJ160A-E3/5B on a DC-biased line may cause unintended conduction during normal operation. The SMBJ160CA-E3/5B must only replace other CA-suffix parts unless board-level redesign validates polarity independence.
SMBJ160CA-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 160V
- Voltage - Breakdown (Min):
- 178V
- Voltage - Clamping (Max) @ Ipp:
- 259V
- Current - Peak Pulse (10/1000µs):
- 2.3A
- 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)
SMBJ160CA-E3/5B FAQ
1.How can I place an order for SMBJ160CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160CA-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 SMBJ160CA-E3/5B reliable?
The price and inventory of SMBJ160CA-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 SMBJ160CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ160CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160CA-E3/5B?
SMBJ160CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160CA-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 SMBJ160CA-E3/5B?
For technical support, including SMBJ160CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160CA-E3/5B requirements.
6.How does Aetrix verify that SMBJ160CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ160CA-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 SMBJ160CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ160CA-E3/5B?
All SMBJ160CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160CA-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 SMBJ160CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ160CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160CA-E3/5B Tags
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