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Vishay General Semiconductor - Diodes Division SMBJ160AHM3_B/I
- Part No.:
- SMBJ160AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160AHM3_B/I.pdf
- Description:
- 600W,160V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,511
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Product details
Overview
SMBJ160AHM3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. 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, and 600 W peak pulse power rating with a 10/1000 µs waveform.
For engineers reviewing the SMBJ160AHM3_B/I datasheet, SMBJ160AHM3_B/I pinout, SMBJ160AHM3_B/I application, or SMBJ160AHM3_B/I equivalent, this device is selected for robust overvoltage protection in automotive-grade power rails, industrial sensor interfaces, and telecom DC supply lines where halogen-free, AEC-Q101 qualified components are required.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction for stable avalanche behavior under repetitive surge conditions. Its thermal resistance (RθJA = 100 °C/W) and low incremental surge resistance enable reliable energy dissipation during transient events up to 100 A IFSM (8.3 ms half-sine).
The SMBJ160AHM3_B/I is rated for operation from −55 °C to +150 °C junction temperature and meets J-STD-020 MSL Level 1 moisture sensitivity with 260 °C reflow peak. Its halogen-free, RoHS-compliant construction (HM3 suffix) and AEC-Q101 qualification confirm suitability for automotive electronics per ISO/TS 16949 production environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for protected circuitry. |
| VBR (min/max) | 178 V / 197 V at 1 mA - Verified breakdown range ensures consistent turn-on threshold across manufacturing lot and temperature. |
| VC @ IPPM | 259 V at 2.3 A - Clamping voltage under 10/1000 µs surge defines worst-case overvoltage seen by downstream ICs or MOSFETs. |
| PPPM | 600 W - Peak pulse power handling capability determines survivability against standardized lightning and EFT transients. |
| IFSM | 100 A - Surge current rating for 8.3 ms half-sine wave confirms robustness against inductive kickback in motor control or relay circuits. |
| TJ max. | +150 °C - Maximum junction temperature enables use in under-hood automotive modules and high-ambient industrial enclosures. |
| 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 JESD 22-B102; polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage rail; forms return path during clamping event. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12 V or 24 V rail); avalanche conduction occurs from cathode to anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without derating in standard PCB layouts. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control units, body electronics, and ADAS power domains requiring zero defect reliability. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declarations; supports green manufacturing and end-of-life recycling compliance. |
| MSL Level 1 (260 °C peak) | Allows single-reflow assembly without baking or special handling, reducing production cost and yield risk in high-volume SMT lines. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time), improving protection margin for high-speed digital interfaces. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: 12 V/24 V battery-supplied ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp positive-going transients above 160 V. Use Value: Limits voltage excursion to ≤259 V during 100 A, 400 ms load dump events, preventing damage to LDOs and microcontrollers. |
Use Scenario: 4–20 mA current loop transmitters interfacing with PLC analog inputs in factory automation. IC Role / Device Role / Timing Role: TVS mounted across signal and return lines to absorb ESD (IEC 61000-4-2 ±8 kV contact) and EFT bursts. Use Value: Clamps transients within 1 ns response time while maintaining <1 µA leakage at 160 V, preserving loop accuracy and stability. |
| Telecom DC Power Input Protection | Motor Drive Gate Driver Protection |
|
Use Scenario: -48 V DC power entry point in base station equipment subjected to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional TVS connected cathode-to-line to suppress positive surges relative to system ground. Use Value: Absorbs 600 W pulses without degradation, meeting Telcordia GR-1089-CORE Level 3 surge immunity requirements. |
Use Scenario: High-side gate driver supply rail (e.g., bootstrap capacitor charging path) in BLDC inverters. IC Role / Device Role / Timing Role: TVS placed between gate driver VDD and ground to clamp voltage spikes from parasitic inductance during switching. Use Value: Prevents gate oxide rupture in MOSFET drivers by limiting VGS overvoltage to <259 V during 100 ns dV/dt events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160AHE3_B/I | Same electrical specs but RoHS-compliant (E3), non-halogen-free; lacks AEC-Q101 qualification. | Suitable for commercial/industrial designs without automotive certification requirements. | Select when halogen content is unrestricted and AEC-Q101 is not mandated. |
| SMBJ160A-M3/5B | Identical performance and HM3 halogen-free spec, but packaged in 13" reel (3200 pcs) vs. 7" reel (750 pcs) of SMBJ160AHM3_B/I. | Optimized for high-volume SMT production with larger reel capacity and same tape-and-reel dimensions. | Choose for automated assembly lines requiring extended reel life and reduced changeover frequency. |
Compared with SMBJ160AHE3_B/I and SMBJ160A-M3/5B, the SMBJ160AHM3_B/I uniquely combines halogen-free construction, AEC-Q101 qualification, and 7" tape-and-reel packaging-making it the preferred choice for Tier 1 automotive suppliers needing certified, eco-compliant, and production-ready TVS diodes.
Availability
SMBJ160AHM3_B/I is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBJ160AHM3_B/I 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, efficiency, and application-specific performance.
The SMBJ series was engineered for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated through proven, standardized protection devices.
FAQ
What is the clamping voltage of SMBJ160AHM3_B/I at its rated peak pulse current?
The SMBJ160AHM3_B/I has a maximum clamping voltage (VC) of 259 V at 2.3 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during standardized surge events and is measured per ANSI/IEEE C62.35. The SMBJ160AHM3_B/I maintains this clamping performance across its full operating temperature range (−55 °C to +150 °C).
Is SMBJ160AHM3_B/I qualified for automotive applications?
Yes, SMBJ160AHM3_B/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix and documentation in Vishay's ordering information table. This qualification validates its reliability for automotive electronic systems-including engine control, body electronics, and infotainment-under stress conditions such as temperature cycling, humidity, and mechanical shock. The SMBJ160AHM3_B/I also meets J-STD-020 MSL Level 1 for reflow compatibility.
What does the "HM3" suffix indicate in SMBJ160AHM3_B/I?
The "HM3" suffix in SMBJ160AHM3_B/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from E3 (RoHS only) and HE3 (RoHS + AEC-Q101, but not halogen-free). The "B/I" portion specifies packaging: "B" indicates tape-and-reel format, and "I" denotes 13-inch reel (3200 pcs). This precise coding ensures correct material compliance and logistics alignment for SMBJ160AHM3_B/I deployment.
How does SMBJ160AHM3_B/I differ from bidirectional TVS diodes like SMBJ160CA?
SMBJ160AHM3_B/I is unidirectional and functions only for positive-going transients relative to ground (cathode connected to protected line), whereas SMBJ160CA is bidirectional and protects against both polarities. The SMBJ160AHM3_B/I exhibits lower leakage (<1 µA at 160 V) and higher surge current capability in its intended direction, making it optimal for DC power rail protection. Bidirectional variants sacrifice some clamping efficiency and leakage performance to achieve symmetrical response.
What is the thermal resistance of SMBJ160AHM3_B/I, and how does it affect layout design?
The SMBJ160AHM3_B/I 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. This value guides PCB layout: increasing pad area or adding thermal vias reduces effective RθJA, allowing higher average power dissipation. For sustained surge duty cycles >0.01%, thermal derating per Figure 2 in the datasheet must be applied to maintain SMBJ160AHM3_B/I junction temperature below 150 °C.
SMBJ160AHM3_B/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ160AHM3_B/I FAQ
1.How can I place an order for SMBJ160AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160AHM3_B/I 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 SMBJ160AHM3_B/I reliable?
The price and inventory of SMBJ160AHM3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ160AHM3_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ160AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160AHM3_B/I?
SMBJ160AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160AHM3_B/I 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 SMBJ160AHM3_B/I?
For technical support, including SMBJ160AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160AHM3_B/I requirements.
6.How does Aetrix verify that SMBJ160AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ160AHM3_B/I 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 SMBJ160AHM3_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ160AHM3_B/I?
All SMBJ160AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160AHM3_B/I, 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 SMBJ160AHM3_B/I part is unused and in its original packaging.
Return procedure for SMBJ160AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160AHM3_B/I Tags
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