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Vishay General Semiconductor - Diodes Division SMBJ160HE3/5B
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- Part No.:
- SMBJ160HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160HE3/5B.pdf
- Description:
- TVS DIODE 160VWM 287VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,956
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Product details
Overview
SMBJ160HE3/5B from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection of DC power rails and signal lines. It features a 160 V standoff voltage (VWM), 178–197 V breakdown range (VBR at 1 mA), 259 V clamping voltage (VC) at 2.3 A peak pulse current, and 600 W peak pulse power rating per 10/1000 µs waveform - deployed in industrial motor drives to safeguard IGBT gate drivers against switching-induced transients.
For engineers reviewing the SMBJ160HE3/5B datasheet, SMBJ160HE3/5B pinout, SMBJ160HE3/5B application, or SMBJ160HE3/5B equivalent, key selection criteria include its AEC-Q101 qualification status, DO-214AA (SMB) package thermal resistance (RθJA = 100 °C/W), low leakage (<1.0 µA at VWM), and automotive-grade reliability under -55 °C to +150 °C junction temperature operation.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches into low-impedance conduction, limiting transient energy across protected nodes. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
Designed for high-energy transient suppression, SMBJ160HE3/5B delivers 2.3 A peak pulse current (IPPM) with 259 V clamping at that level, and maintains <1.0 µA reverse leakage at 160 V standoff - critical for low-power sensor interfaces and always-on automotive modules where quiescent current must remain minimal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 160 V - maximum continuous reverse operating voltage before significant leakage; defines upper limit of normal DC rail operation. |
| VBR (Breakdown Voltage) | 178–197 V at 1 mA - guaranteed avalanche initiation range; ensures predictable turn-on margin above VWM. |
| VC (Clamping Voltage) | 259 V at 2.3 A (10/1000 µs) - maximum voltage seen by protected circuit during worst-case surge; determines system overvoltage margin. |
| PPPM (Peak Pulse Power) | 600 W - energy-handling capacity for standardized 10/1000 µs surge; validates suitability for IEC 61000-4-5 Level 4 compliance designs. |
| IPPM (Peak Pulse Current) | 2.3 A - maximum transient current the device safely diverts without degradation; sets minimum series impedance for effective clamping. |
| TJ max. | +150 °C - maximum junction temperature; enables use in under-hood automotive environments and enclosed industrial enclosures. |
| AEC-Q101 Qualified | Yes - validated for automotive electronic systems per stress test requirements including HTOL, TC, AC/DC HAST, and ESD. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to lower-potential side (e.g., ground or return path); defines directionality of clamping action. |
| Cathode | Reverse voltage sensing / Clamping output node | Connected to protected line (e.g., 160 V rail); conducts avalanche current to anode when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against severe load-switching and lightning-induced surges in industrial power supplies without derating. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., EFT bursts), improving protection margin. |
| MSL Level 1 (J-STD-020), 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate driver ICs and bootstrap circuits against inductive kickback from IGBT/MOSFET switching in 3-phase inverters. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between gate and source, triggered within <1 ns to limit VGS spikes to safe levels. Use Value: Prevents gate oxide rupture and false turn-on events, enabling reliable 160 V DC bus operation with >100,000-cycle surge endurance. |
Use Scenario: Input line protection for LIN bus transceivers and window lift motor controllers exposed to battery dump and load-dump transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V supply rail, absorbing up to 600 W for 1 ms per ISO 7637-2 Pulse 5a. Use Value: Maintains functional safety integrity under automotive load-dump conditions while meeting AEC-Q101 lifetime reliability targets. |
| Telecom Power Feeds | Industrial PLC Analog Inputs |
|
Use Scenario: Surge protection on 48 V DC power inputs of remote radio units and base station backhaul equipment. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of DC/DC converters to clamp induced surges from nearby lightning strikes. Use Value: Limits input voltage to ≤259 V during 10/1000 µs transients, preventing converter latch-up and enabling IEC 61000-4-5 compliance. |
Use Scenario: Protection of 4–20 mA current loop receivers and precision ADC front-ends in factory automation sensors. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 µA) clamp on signal line referenced to isolated ground, activated only during fault conditions. Use Value: Preserves measurement accuracy during normal operation while providing fail-safe shutdown during cable ESD 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 |
|---|---|---|---|
| SMBJ160A-E3/5B | Commercial-grade (non-AEC-Q101), identical electrical specs and SMB package. | Lacks automotive qualification; suitable for industrial/commercial power supplies but not automotive ECUs. | Select when AEC-Q101 is not required and cost optimization is prioritized. |
| SMCJ160AHE3/5B | Same VWM/VBR/VC, but SMC (DO-214AB) package - larger footprint, higher IPPM (3.2 A), lower RθJA (60 °C/W). | Better thermal performance and surge handling; requires PCB layout change due to larger pad area. | Choose for higher-reliability industrial systems needing extended surge life or improved thermal margin. |
Compared with SMBJ160A-E3/5B, SMBJ160HE3/5B adds AEC-Q101 validation for automotive use; compared with SMCJ160AHE3/5B, it trades thermal robustness and surge headroom for space-constrained layouts where SMB footprint is mandatory.
Availability
SMBJ160HE3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and PLC analog inputs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ160HE3/5B 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 performance.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness against ESD, EFT, and surge events is mission-critical.
FAQ
What is the clamping voltage of SMBJ160HE3/5B at its rated peak pulse current?
The SMBJ160HE3/5B has a maximum clamping voltage (VC) of 259 V when subjected to its rated peak pulse current of 2.3 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream components remain within absolute maximum ratings.
Is SMBJ160HE3/5B suitable for automotive applications?
Yes, SMBJ160HE3/5B is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3". This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD robustness - making SMBJ160HE3/5B appropriate for under-hood and chassis-mounted automotive electronics such as body control modules and power distribution units.
What does the "5B" in SMBJ160HE3/5B indicate?
The "5B" suffix denotes the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 3200 pieces per reel. This format supports high-volume automated SMT placement and is compatible with standard pick-and-place equipment - distinct from the "52" suffix (7-inch reel, 750 pieces) used for lower-volume or prototyping scenarios.
How does SMBJ160HE3/5B differ from bidirectional TVS diodes like SMBJ160CA?
SMBJ160HE3/5B is unidirectional and functions as a polarity-sensitive clamp - conducting only when cathode voltage exceeds anode by ≥VBR. In contrast, SMBJ160CA is bidirectional and clamps symmetrically for AC or floating-line applications. The unidirectional nature of SMBJ160HE3/5B provides lower leakage (<1.0 µA vs. ~2.0 µA for CA types at VWM) and is preferred for DC rail protection where polarity is fixed.
What is the thermal resistance of SMBJ160HE3/5B, and how does it affect layout design?
SMBJ160HE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. This value guides PCB layout: adequate copper pour and thermal vias are required to maintain TJ ≤ 150 °C under sustained 5.0 W power dissipation. For high-reliability applications, designers should verify thermal performance using actual board stack-up and airflow conditions.
SMBJ160HE3/5B 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ160HE3/5B FAQ
1.How can I place an order for SMBJ160HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160HE3/5B 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 SMBJ160HE3/5B reliable?
The price and inventory of SMBJ160HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ160HE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ160HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160HE3/5B?
SMBJ160HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160HE3/5B 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 SMBJ160HE3/5B?
For technical support, including SMBJ160HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160HE3/5B requirements.
6.How does Aetrix verify that SMBJ160HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ160HE3/5B 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 SMBJ160HE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ160HE3/5B?
All SMBJ160HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160HE3/5B, 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 SMBJ160HE3/5B part is unused and in its original packaging.
Return procedure for SMBJ160HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160HE3/5B Tags
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