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Vishay General Semiconductor - Diodes Division SMBJ160-E3/52
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- Part No.:
- SMBJ160-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160-E3/52.pdf
- Description:
- TVS DIODE 160VWM 287VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,456
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Product details
Overview
SMBJ160-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in 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, 2.3 A peak pulse current (IPPM), 259 V maximum clamping voltage (VC) at IPPM, and 600 W peak pulse power dissipation with 10/1000 µs waveform - deployed on power rails and signal lines of industrial motor drives and telecom interface circuits.
For engineers reviewing the SMBJ160-E3/52 datasheet, SMBJ160-E3/52 pinout, SMBJ160-E3/52 application, or SMBJ160-E3/52 equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, thermal derating above 25 °C ambient, standoff voltage alignment with system DC bus level, and compatibility with automated SMT placement due to its low-profile SMB package.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (<1 µA leakage at 160 V), but triggers avalanche conduction when transient voltage exceeds its breakdown threshold, diverting surge current away from downstream components. Its glass-passivated junction ensures stable VBR tolerance and long-term reliability under repetitive surge stress.
The device complies with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (surge) immunity requirements when applied with proper PCB layout - including short, low-inductance traces to ground and adequate copper pour for thermal dissipation. Its MSL Level 1 rating supports lead-free reflow without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 160 V - maximum continuous reverse operating voltage before significant leakage; sets upper limit for DC rail protection without false triggering. |
| VBR (Breakdown Voltage) | 178–197 V at 1 mA - guaranteed avalanche onset range; defines minimum overvoltage threshold for clamping activation. |
| VC (Clamping Voltage) | 259 V at IPPM - maximum voltage seen by protected circuit during 2.3 A transient; critical for ensuring downstream ICs remain below absolute max ratings. |
| PPPM (Peak Pulse Power) | 600 W with 10/1000 µs waveform - quantifies single-event surge energy handling capability; validated per Fig. 1 derating curves. |
| RθJA (Thermal Resistance) | 100 °C/W - junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; determines allowable power dissipation at elevated ambient temperatures. |
| TJ max. | 150 °C - maximum junction temperature; limits operational lifetime under sustained surge duty cycles or high ambient conditions. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band; anode and cathode terminals are axially oriented along the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | High-side connection point for unidirectional clamping | Connected to protected line (e.g., +160 V rail); conducts surge current toward ground when transient exceeds VBR. |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping current path during transient events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges on 160 V DC systems without thermal runaway. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving clamping fidelity for high-speed interfaces. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
| Glass passivated junction | Ensures stable VBR over 1000+ surge cycles and prevents parameter drift under humidity or thermal cycling stress. |
| RoHS-compliant, commercial grade (E3 suffix) | Meets EU RoHS Directive 2011/65/EU and JEDEC JESD201 Class 2 whisker resistance for long-term field reliability. |
Applications
| Industrial Motor Drive DC Bus Protection | Telecom Ethernet PHY Port Protection |
|---|---|
|
Use Scenario: Suppresses switching spikes and regeneration surges on 160 V DC link capacitors in servo drive inverters. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between DC+ and chassis ground, triggered only during overvoltage events. Use Value: Limits transient voltage to ≤259 V, preventing gate oxide damage to 200 V-rated IGBT drivers and maintaining functional safety integrity. |
Use Scenario: Protects RJ45 magnetics and PHY transceivers from ESD and lightning-induced surges entering via outdoor Ethernet cables. IC Role / Device Role / Timing Role: Standoff-connected TVS on differential pairs (e.g., TX+/TX−), clamping common-mode transients before they reach PHY input pins. Use Value: Withstands ±15 kV contact ESD (IEC 61000-4-2) and 1 kV surge (IEC 61000-4-5) while adding <0.5 pF parasitic capacitance to preserve 100BASE-TX signal integrity. |
| Renewable Energy Solar Inverter MPPT Input | Automotive Body Control Module Power Rail |
|
Use Scenario: Shields MPPT controller inputs from voltage reversals and lightning-induced transients on photovoltaic string outputs up to 188 V open-circuit. IC Role / Device Role / Timing Role: Unidirectional TVS mounted directly at PV input connector, referenced to system ground with minimal trace inductance. Use Value: Clamps 10/1000 µs surges to 259 V while maintaining 160 V DC operating margin - enabling compliance with UL 1741 and IEC 62109 safety standards. |
Use Scenario: Guards 12 V/24 V supply inputs of BCM microcontrollers and CAN transceivers against load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary clamping device on main power rail, coordinated with upstream fuse and secondary LC filtering. Use Value: Handles 300 ms load dump pulses (ISO 7637-2 Pulse 5a) with thermal stability due to 100 °C/W RθJA and 150 °C TJ max rating. |
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 difference in circuit function or layout; selected where halogen-free material compliance is mandated (e.g., automotive Tier 1 BOMs). | Choose M3 suffix when halogen-free construction is required; otherwise E3 offers same performance at standard cost. |
| SMCJ160A-E3/52 | Same VWM/VBR/VC specs but in larger SMC (DO-214AB) package with higher 1500 W PPPM rating and lower RθJA (50 °C/W). | Better thermal performance and surge margin; requires larger PCB footprint and may not fit space-constrained designs. | Select SMCJ160A-E3/52 only if system-level surge testing exceeds 600 W or board layout allows SMC footprint. |
Compared with SMBJ160-E3/52, the M3 variant delivers identical protection performance with halogen-free materials, while the SMCJ160A-E3/52 provides higher surge headroom and thermal headroom at the cost of increased size - making SMBJ160-E3/52 optimal for space-constrained 600 W-class industrial and telecom applications.
Availability
SMBJ160-E3/52 is available at Aetrix Electronics and suitable for industrial motor drives, telecom Ethernet ports, solar inverter MPPT inputs, and automotive body control modules requiring stable component supply across production lifecycles.
Supply support for SMBJ160-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, MOSFETs, and protection devices with emphasis on reliability, precision, and application-specific optimization.
The SMBJ series is part of Vishay's TRANSZORB® TVS platform, engineered for high-energy transient suppression in harsh environments - targeting industrial automation, renewable energy, and communications infrastructure where robustness and consistency are critical.
FAQ
What is the maximum clamping voltage of SMBJ160-E3/52 at its rated peak pulse current?
The SMBJ160-E3/52 has a maximum clamping voltage (VC) of 259 V when subjected to its peak pulse current (IPPM) of 2.3 A with a 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88392 and defines the highest voltage the protected circuit will experience during a full-rated surge event. Maintaining VC below the absolute maximum rating of downstream ICs is essential for reliable protection - the SMBJ160-E3/52 achieves this margin for 200 V-rated components in 160 V systems.
Is SMBJ160-E3/52 suitable for bidirectional transient protection?
No, SMBJ160-E3/52 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. It conducts only in reverse bias above VBR and blocks forward current like a standard diode. For bidirectional protection (e.g., AC lines or differential data pairs), Vishay specifies the "CA" suffix variant such as SMBJ160CA. Using SMBJ160-E3/52 on bidirectional signals would result in unintended forward conduction and potential failure - always verify polarity and application topology before selecting SMBJ160-E3/52.
What is the thermal resistance and how does it affect SMBJ160-E3/52's surge capability at elevated temperatures?
The SMBJ160-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads. This means each watt of surge power raises the junction temperature by ~100 °C above ambient. At TA = 75 °C, the device must derate its 600 W peak pulse power per Figure 2 in datasheet 88392 - reducing usable surge energy by ~35%. Proper copper pour and thermal vias are essential to sustain repeated surges in high-temperature environments. The SMBJ160-E3/52 remains functional up to TJ = 150 °C, but long-term reliability degrades above 125 °C junction temperature.
Does SMBJ160-E3/52 meet automotive qualification standards?
The base SMBJ160-E3/52 is a commercial-grade, RoHS-compliant part and is not AEC-Q101 qualified. Vishay offers automotive variants under different ordering codes: SMBJ160HE3_X (RoHS-compliant + AEC-Q101) and SMBJ160HM3_X (halogen-free + AEC-Q101). These require explicit "HE3" or "HM3" suffixes and revision codes (e.g., "A"). If your design targets automotive applications such as body control modules or infotainment power rails, you must specify the HE3 or HM3 version - SMBJ160-E3/52 alone does not satisfy AEC-Q101 stress test requirements.
How does the 10/1000 µs waveform definition impact real-world surge testing for SMBJ160-E3/52?
The 10/1000 µs waveform defines the industry-standard surge pulse shape used to rate SMBJ160-E3/52's 600 W peak pulse power: 10 µs rise time to peak, 1000 µs decay to 50% of peak. This closely models lightning-induced surges (IEC 61000-4-5) and inductive switching transients. Real-world validation requires matching this waveform in test setups - using shorter pulses (e.g., 8/20 µs) yields higher peak currents but lower total energy, while longer pulses exceed the device's thermal limits. The SMBJ160-E3/52's specified VC and IPPM values are valid only under the 10/1000 µs condition per Figure 3 in datasheet 88392.
SMBJ160-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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ160-E3/52 FAQ
1.How can I place an order for SMBJ160-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160-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 SMBJ160-E3/52 reliable?
The price and inventory of SMBJ160-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 SMBJ160-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ160-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160-E3/52?
SMBJ160-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160-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 SMBJ160-E3/52?
For technical support, including SMBJ160-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160-E3/52 requirements.
6.How does Aetrix verify that SMBJ160-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ160-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 SMBJ160-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ160-E3/52?
All SMBJ160-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160-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 SMBJ160-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ160-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160-E3/52 Tags
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