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Vishay General Semiconductor - Diodes Division SMBJ160A-M3/5B
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- Part No.:
- SMBJ160A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160A-M3/5B.pdf
- Description:
- TVS DIODE 160VWM 259VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,464
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Product details
Overview
SMBJ160A-M3/5B 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 (VWM), 178–197 V breakdown voltage (VBR) at 1.0 mA, 259 V maximum clamping voltage (VC) at 2.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial motor drives, telecom power supplies, and automotive body control modules.
For engineers reviewing the SMBJ160A-M3/5B datasheet, SMBJ160A-M3/5B pinout, SMBJ160A-M3/5B application, or SMBJ160A-M3/5B equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, 150 °C max junction temperature, low incremental surge resistance, and halogen-free RoHS-compliant construction per JESD201 Class 2 whisker testing.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below VWM = 160 V and rapidly transitions to low-impedance conduction above VBR = 178–197 V to limit transient energy. Its glass-passivated junction ensures stable avalanche characteristics and fast response time (<1 ps), while the unidirectional configuration provides forward conduction path only during reverse overvoltage events.
The device is rated for 600 W peak pulse power (10/1000 µs), supports 100 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits 0.108 %/°C temperature coefficient of VBR. Thermal resistance is 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads, enabling reliable operation up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working range. |
| VBR @ IT = 1.0 mA | 178–197 V - Breakdown voltage range confirming tight tolerance and predictable turn-on threshold. |
| VC @ IPPM = 2.3 A | 259 V - Clamped voltage under 10/1000 µs surge; determines protected circuit's maximum transient exposure. |
| PPPM | 600 W - Peak pulse power handling capacity; validates suitability for IEC 61000-4-5 Level 4 surges. |
| IFSM | 100 A - Single half-sine surge current rating (8.3 ms); supports inrush and fault-current resilience. |
| TJ max. | 150 °C - Maximum junction temperature; enables use in under-hood automotive and high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Polarity marked by cathode band on one end; anode and cathode terminals are axially oriented along the body length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to system ground or lower-potential rail; defines directionality of clamping action. |
| Cathode | Clamping output / Surge current sink | Connected to protected line (e.g., 160 V supply rail); conducts transient current to ground during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables compliance with IEC 61000-4-5 surge immunity requirements for industrial and telecom equipment. |
| Low incremental surge resistance | Minimizes VC rise under high di/dt transients, improving clamping precision and downstream IC survivability. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance mandates for global OEM production without compromising thermal or electrical performance. |
| MSL Level 1 (J-STD-020), 260 °C reflow peak | Supports lead-free SMT assembly without moisture-related popcorning or delamination risks. |
| 150 °C maximum junction temperature | Allows deployment in high-temperature zones such as engine compartments, power converters, and enclosed industrial enclosures. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of 160 V DC bus against switching transients from IGBT gate drive noise and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed across DC link capacitor to absorb repetitive 600 W surges. Use Value: Limits voltage excursions to ≤259 V during 2.3 A transients, preventing MOSFET avalanche failure and maintaining bus regulation stability. |
Use Scenario: Input-stage surge suppression on -48 V telecom rectifier outputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between output rail and chassis ground to shunt common-mode transients. Use Value: Withstands 100 A 8.3 ms half-sine surges and maintains <1 µA leakage at 160 V, ensuring no standby power loss or false triggering. |
| Automotive Body Control Modules | Industrial PLC I/O Protection |
|
Use Scenario: Protection of LIN bus power pins and microcontroller supply inputs in BCMs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS mounted directly at connector entry point to intercept transients before reaching LDO regulators. Use Value: Clamps 10/1000 µs surges to 259 V within <1 ps, preserving 5 V logic integrity and meeting AEC-Q101 qualification when specified with HM3 suffix. |
Use Scenario: Field-side protection of 24 V digital input channels in programmable logic controllers interfacing with solenoids and sensors. IC Role / Device Role / Timing Role: TVS diode placed in series with optocoupler input to suppress ESD and inductive switching spikes. Use Value: Provides 160 V standoff margin above nominal 24 V operation while delivering 259 V clamping to safeguard opto-IC input stages. |
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-E3/5B | RoHS-compliant but not halogen-free; same electrical specs and SMB package. | Preferred for commercial-grade applications where halogen content is unrestricted. | Select when cost sensitivity outweighs halogen-free requirement and AEC-Q101 is not needed. |
| SMBJ160AHM3_B/I | AEC-Q101 qualified, halogen-free, 13" tape-and-reel packaging; identical VWM, VBR, VC, PPPM. | Required for automotive electronics subject to PPAP and long-term reliability validation. | Choose for automotive Tier-1 BOMs needing qualification evidence and extended temperature lifecycle assurance. |
Compared with SMBJ160A-M3/5B, the E3 variant offers identical protection performance at lower cost for non-automotive use, while the HM3_B/I version adds AEC-Q101 validation and larger reel quantity - enabling direct substitution where qualification or procurement scale drives selection.
Availability
SMBJ160A-M3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply, halogen-free compliance, and consistent 160 V standoff performance.
Supply support for SMBJ160A-M3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting industrial automation, telecom infrastructure, and automotive subsystems where robustness and repeatable clamping behavior are critical.
FAQ
What is the maximum clamping voltage of SMBJ160A-M3/5B under a 10/1000 µs surge?
The SMBJ160A-M3/5B has a maximum clamping voltage (VC) of 259 V at 2.3 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88392 and defines the upper voltage limit imposed on protected circuits during standardized surge events. The SMBJ160A-M3/5B maintains this clamping performance across its full operating temperature range.
Is SMBJ160A-M3/5B suitable for automotive applications?
SMBJ160A-M3/5B is halogen-free and RoHS-compliant but not AEC-Q101 qualified. For automotive use, Vishay offers the SMBJ160AHM3_B/I variant - identical electrically but certified to AEC-Q101. The SMBJ160A-M3/5B may be used in non-safety-critical automotive subsystems where qualification is not mandated, though design validation remains the customer's responsibility.
What does the "M3" suffix indicate in SMBJ160A-M3/5B?
The "M3" suffix denotes halogen-free, RoHS-compliant construction meeting JESD201 Class 2 whisker resistance requirements. It confirms the device uses environmentally compliant molding compounds and matte tin-plated leads, distinguishing it from the "E3" (RoHS only) and "HM3" (AEC-Q101 + halogen-free) variants. All M3 devices retain identical electrical ratings as their E3 counterparts, including those of SMBJ160A-M3/5B.
What is the thermal resistance of SMBJ160A-M3/5B?
The SMBJ160A-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Its junction-to-lead resistance (RθJL) is 20 °C/W. These values enable accurate thermal modeling in PCB layouts and confirm suitability for continuous operation up to 150 °C junction temperature - a key specification for SMBJ160A-M3/5B in high-ambient designs.
How does SMBJ160A-M3/5B differ from bidirectional TVS diodes like SMBJ160CA?
SMBJ160A-M3/5B is unidirectional and features a cathode band marking; it conducts only during reverse overvoltage events and blocks forward current beyond ~3.5 V. In contrast, SMBJ160CA is bidirectional with symmetrical clamping in both polarities and no polarity marking. SMBJ160A-M3/5B is selected for DC rail protection where polarity is fixed, whereas SMBJ160CA suits AC or differential signal lines - a functional distinction confirmed in Vishay's SMBJ5.0A–188A datasheet section "Devices for Bidirection Applications".
SMBJ160A-M3/5B 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:
- 1
- Bidirectional Channels:
- -
- 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)
SMBJ160A-M3/5B FAQ
1.How can I place an order for SMBJ160A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160A-M3/5B 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 SMBJ160A-M3/5B reliable?
The price and inventory of SMBJ160A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ160A-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ160A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160A-M3/5B?
SMBJ160A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160A-M3/5B 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 SMBJ160A-M3/5B?
For technical support, including SMBJ160A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160A-M3/5B requirements.
6.How does Aetrix verify that SMBJ160A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ160A-M3/5B 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 SMBJ160A-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ160A-M3/5B?
All SMBJ160A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160A-M3/5B, 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 SMBJ160A-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ160A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160A-M3/5B Tags
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