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Vishay General Semiconductor - Diodes Division SMBJ160A-E3/52
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- Part No.:
- SMBJ160A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160A-E3/52.pdf
- Description:
- TVS DIODE 160VWM 259VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,978
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Product details
Overview
SMBJ160A-E3/52 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 stand-off voltage (VWM), 178–197 V breakdown voltage (VBR) at 1 mA, 2.3 A peak pulse current (IPPM), 259 V clamping voltage (VC) under 10/1000 µs surge, and 600 W peak pulse power rating - deployed to safeguard MOSFETs, ICs, and sensor interfaces against inductive switching transients in industrial power supplies.
For engineers reviewing the SMBJ160A-E3/52 datasheet, SMBJ160A-E3/52 pinout, SMBJ160A-E3/52 application, or SMBJ160A-E3/52 equivalent, this device is evaluated for high-energy transient suppression in DC power distribution networks, automotive body electronics, and telecom line interface circuits where precise clamping level and low leakage (<1.0 µA at VWM) are critical selection criteria.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (178–197 V), it avalanches into low-impedance conduction to divert surge current away from downstream components. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surges.
Thermal design relies on its SMB (DO-214AA) package with RθJA = 100 °C/W and RθJL = 20 °C/W, requiring minimum 0.2" × 0.2" copper pads per terminal for rated 600 W pulse handling. The cathode band identifies polarity, and it meets MSL Level 1 per J-STD-020 with 260 °C reflow peak tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - maximum continuous reverse operating voltage before clamping initiates; defines safe DC rail margin for 12 V–48 V systems scaled to higher-voltage buses. |
| VBR (min/max) | 178 V / 197 V at IT = 1 mA - tight 10.7% tolerance ensures predictable turn-on across temperature and production lot. |
| VC @ IPPM | 259 V at 2.3 A (10/1000 µs) - clamping voltage limits stress on protected ICs; difference from VWM (99 V) reflects effective surge energy absorption. |
| PPPM | 600 W - peak pulse power capability with 10/1000 µs waveform enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω). |
| ID @ VWM | <1.0 µA - ultra-low reverse leakage preserves efficiency in high-impedance sensing or battery-backed circuits. |
| TJ max. | +150 °C - supports operation in under-hood automotive and industrial enclosures without derating below full power. |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 5.59 mm length, 4.06 mm width, 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, UL 94 V-0 rated compound, cathode identified by a band on the case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to system ground or low-side reference; completes clamping loop during transient events. |
| Cathode | Protected circuit connection / High-side clamp node | Connected to the line being protected (e.g., +160 V rail); avalanche conduction occurs between cathode and anode when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against severe lightning-induced surges in telecom and industrial AC/DC front-ends. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), improving clamping precision for sensitive gate drivers. |
| Glass passivated junction | Ensures stable VBR over 1000+ surge cycles and prevents parameter drift in humid or chemically aggressive environments. |
| MSL Level 1, 260 °C peak reflow | Supports lead-free assembly without popcorn cracking or delamination; eliminates pre-bake requirements for SMT lines. |
| RoHS-compliant, commercial grade (E3 suffix) | Meets global environmental compliance mandates while maintaining cost-effective sourcing for high-volume industrial designs. |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
|
Use Scenario: 160 V DC input stage of a DIN-rail mounted PLC power supply exposed to load dump and relay coil flyback. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between +VIN and GND to clamp transients before they reach the primary-side controller IC. Use Value: Limits voltage excursion to ≤259 V during 600 W surges, preventing latch-up or gate oxide rupture in 200 V-rated MOSFETs and controllers. |
Use Scenario: 12 V–16 V battery-fed BCM microcontroller power domain subject to ISO 7637-2 Pulse 5a (load dump up to 60 V). IC Role / Device Role / Timing Role: Standoff-rated TVS on main 12 V rail to absorb energy from alternator load dump events. Use Value: Withstands 100 A IFSM (8.3 ms half-sine) and clamps at 259 V, ensuring sustained operation even during extended overvoltage conditions. |
| Telecom Line Interface Protection | Renewable Energy Inverter DC Link Monitoring |
|
Use Scenario: Protection of RS-485 transceiver bias rails in outdoor base station cabinets subjected to induced lightning surges. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated 160 V auxiliary supply feeding level-shifting circuitry. Use Value: Low 1.0 µA leakage avoids loading high-impedance bias networks; 259 V VC ensures transceiver ICs remain within absolute maximum ratings. |
Use Scenario: Voltage monitoring divider on 150–180 V DC link of a solar microinverter, where transient coupling may exceed sensor IC limits. IC Role / Device Role / Timing Role: Clamping element across high-side resistor of resistive divider to prevent overvoltage damage to ADC input. Use Value: Tight VBR tolerance (178–197 V) guarantees clamping activation only above nominal DC link, avoiding false triggering during normal operation. |
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-M3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package. | No functional difference; selected where halogen-free material compliance is mandated (e.g., EU public infrastructure projects). | Direct substitution if halogen-free certification is required; same thermal and electrical performance. |
| SMCJ160A-E3/52 | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package with 1500 W PPPM rating and lower RθJA (50 °C/W). | Used where higher surge energy (e.g., IEC 61000-4-5 Level 5) or improved thermal dissipation is needed. | Choose when 600 W is insufficient; requires PCB layout change due to larger footprint and different pad geometry. |
Compared with SMBJ160A-E3/52, the M3 variant offers identical protection performance with halogen-free construction, while the SMCJ160A-E3/52 delivers 2.5× higher surge capacity in a physically larger package - enabling robustness upgrades without redesigning clamping topology.
Availability
SMBJ160A-E3/52 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, telecom line interfaces, and renewable energy inverters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ160A-E3/52 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, power handling, and automotive qualification.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting industrial automation, transportation, and communications infrastructure where failure resilience and consistent clamping behavior are non-negotiable.
FAQ
What is the clamping voltage of SMBJ160A-E3/52 under standard test conditions?
The SMBJ160A-E3/52 has a maximum clamping voltage (VC) of 259 V when subjected to a 10/1000 µs surge waveform at its rated peak pulse current of 2.3 A. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events - a critical parameter for ensuring downstream ICs remain within their absolute maximum ratings. The SMBJ160A-E3/52 achieves this clamping performance while maintaining low leakage and tight VBR tolerance.
Is SMBJ160A-E3/52 suitable for automotive applications?
The SMBJ160A-E3/52 is a commercial-grade part (E3 suffix) and not AEC-Q101 qualified; however, its -55 °C to +150 °C operating junction temperature range, 100 A IFSM surge rating, and robust glass-passivated junction make it technically viable for non-safety-critical automotive subsystems like body control modules or infotainment power rails - provided system-level validation confirms compliance with ISO 7637-2. For certified automotive use, the SMBJ160AHE3 variant should be selected instead. The SMBJ160A-E3/52 remains appropriate for industrial and telecom applications demanding equivalent ruggedness.
How does the SMBJ160A-E3/52 differ from bidirectional TVS diodes like SMBJ160CA?
The SMBJ160A-E3/52 is unidirectional and functions only during reverse-biased overvoltage events, with a forward voltage drop (~3.5 V at 50 A) that allows it to conduct forward current like a rectifier. In contrast, SMBJ160CA provides symmetrical clamping in both directions, making it suitable for AC signal lines or differential buses. The SMBJ160A-E3/52's cathode band marks polarity, while bidirectional types have no marking. Use SMBJ160A-E3/52 on DC rails where polarity is fixed; choose SMBJ160CA for AC-coupled or floating nodes. Both share identical VWM, VBR, and PPPM ratings.
What is the thermal resistance and recommended PCB layout for SMBJ160A-E3/52?
The SMBJ160A-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W. To achieve rated 600 W pulse power, Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - minimum copper area required to sustain thermal dissipation without exceeding TJ max. of +150 °C. The SMBJ160A-E3/52's DO-214AA outline supports standard SMT reflow profiles, including lead-free (260 °C peak), and its matte tin plating ensures solderability per J-STD-002.
Can SMBJ160A-E3/52 be used in parallel for higher surge current handling?
Parallel connection of SMBJ160A-E3/52 devices is not recommended due to mismatch in VBR (178–197 V) and dynamic impedance, which causes uneven current sharing and potential thermal runaway. Vishay specifies single-device operation only; for higher IPPM, select a higher-power package like SMCJ160A-E3/52 (1500 W) or SMAJ160A-E3/52 (400 W) - each with validated thermal and electrical derating curves. The SMBJ160A-E3/52 is optimized for standalone deployment in space-constrained layouts where its 600 W rating meets IEC 61000-4-5 Level 4 requirements.
SMBJ160A-E3/52 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-E3/52 FAQ
1.How can I place an order for SMBJ160A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160A-E3/52 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-E3/52 reliable?
The price and inventory of SMBJ160A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ160A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ160A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160A-E3/52?
SMBJ160A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160A-E3/52 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-E3/52?
For technical support, including SMBJ160A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160A-E3/52 requirements.
6.How does Aetrix verify that SMBJ160A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ160A-E3/52 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-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ160A-E3/52?
All SMBJ160A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160A-E3/52, 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-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ160A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160A-E3/52 Tags
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