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Vishay General Semiconductor - Diodes Division SMBJ13-E3/52
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- Part No.:
- SMBJ13-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13-E3/52.pdf
- Description:
- TVS DIODE 13VWM 23.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,229
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Product details
Overview
SMBJ13-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive switching transients and lightning-induced surges on power and signal lines. It features a 13 V standoff voltage (VWM), 14.4–15.9 V breakdown range at 1 mA, 21.5 V maximum clamping voltage at 27.9 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the SMBJ13-E3/52 datasheet, SMBJ13-E3/52 pinout, SMBJ13-E3/52 application, or SMBJ13-E3/52 equivalent, this device is selected for robust overvoltage protection in DC power rails, MOSFET gate drivers, and sensor interface circuits where fast response (<1 ns), low clamping ratio, and AEC-Q101-compliant reliability are required.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, leveraging a glass-passivated silicon junction to deliver sub-nanosecond response to voltage transients. Its 1.0 µA max reverse leakage at 13 V and 21.5 V clamping voltage at 27.9 A ensure minimal system disruption during surge events while maintaining tight voltage margins relative to protected ICs.
The device is rated for 100 A non-repetitive forward surge (8.3 ms half-sine) and 150 °C maximum junction temperature, with thermal resistance of 100 °C/W (junction-to-ambient) on standard 5.0 mm × 5.0 mm copper pads. Its SMB package supports automated placement and meets MSL Level 1 per J-STD-020 at 260 °C peak reflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 13 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for normal circuit operation. |
| VBR (Breakdown Voltage) | 14.4–15.9 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above nominal rail voltage. |
| VC (Clamping Voltage) | 21.5 V at IPPM = 27.9 A - Peak voltage seen by protected circuit during 600 W transient; defines worst-case stress level. |
| PPPM (Peak Pulse Power) | 600 W with 10/1000 µs waveform - Sustains high-energy transients common in automotive load-dump and industrial switching. |
| IPPM (Peak Pulse Current) | 27.9 A - Maximum surge current the device safely diverts without degradation; validated per Fig. 1 & 3 in datasheet. |
| TJmax | 150 °C - Enables operation in under-hood automotive and industrial environments with elevated ambient temperatures. |
| RθJA | 100 °C/W - Thermal performance on standard PCB pad layout; informs derating requirements above 25 °C ambient. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads. Cathode indicated by band; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes clamping loop when cathode is tied to protected line. |
| Cathode | High-side connection point | Connected to protected line (e.g., 12 V rail or sensor output); conducts surge current to ground during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients from inductive loads and ESD without failure, supporting IEC 61000-4-5 Level 4 compliance. |
| 21.5 V clamping at 27.9 A | Clamping ratio (VC/VWM) ≈ 1.65 - Minimizes overvoltage stress on downstream 13.5 V-rated components like microcontrollers or CAN transceivers. |
| Sub-nanosecond response time | Activates before most ICs can be damaged by fast-rising transients (e.g., relay bounce or EFT bursts), preserving system integrity. |
| RoHS-compliant, commercial-grade (E3 suffix) | Meets environmental regulations and solderability standards (J-STD-002/JESD 22-B102); suitable for high-volume automated assembly. |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and pre-bake requirements, reducing manufacturing complexity and cost. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp surges before they reach LDOs or MCU power pins. Use Value: Limits peak voltage to 21.5 V during 27.9 A transients, preventing latch-up or permanent damage to 16 V absolute-maximum-rated regulators. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation systems from cable discharge and motor noise. IC Role / Device Role / Timing Role: TVS mounted at connector entry point, shunting transients from 4–20 mA loop or 0–10 V output lines to chassis ground. Use Value: 1.0 µA leakage at 13 V avoids loading precision output stages; 21.5 V clamping preserves ADC input range integrity. |
| MOSFET Gate Driver Protection | Telecom DC Power Input Protection |
|
Use Scenario: Safeguarding high-side N-channel MOSFET gates driven by PWM controllers in DC-DC converters subject to shoot-through spikes. IC Role / Device Role / Timing Role: TVS placed between gate and source to clamp negative-going spikes induced by parasitic inductance during switching transitions. Use Value: Fast response prevents gate oxide breakdown; 13 V VWM allows full 12 V gate drive swing while blocking false triggering. |
Use Scenario: Front-end surge suppression on -48 V telecom rectifier outputs exposed to lightning-induced surges on long building feeders. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-ground, cathode-to-line, to clamp positive transients on negative supply rails. Use Value: 600 W rating sustains multiple 10/1000 µs surges per IEC 61000-4-5; 150 °C TJmax supports operation in sealed outdoor cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A-E3/52 | Same electrical specs and package; identical marking code "LG" and VBR range (14.4–15.9 V). E3/52 denotes same RoHS-compliant tape-and-reel packaging. | No functional difference; direct form-fit-function replacement with identical qualification status and thermal behavior. | Select SMBJ13A-E3/52 if sourcing from distributors listing that exact base P/N variant; functionally interchangeable with SMBJ13-E3/52. |
| SMCJ13A-E3/52 | Same VWM, VBR, and VC, but in larger SMC (DO-214AB) package; 1500 W PPPM, higher IPPM (43.3 A), and lower RθJA (60 °C/W). | Used where higher surge margin or improved thermal dissipation is needed; requires larger PCB footprint and different pad layout. | Choose SMCJ13A-E3/52 only when 600 W is insufficient or board layout allows SMC footprint; not drop-in due to package size mismatch. |
Compared with SMBJ13-E3/52, SMBJ13A-E3/52 offers identical protection performance in the same SMB package, while SMCJ13A-E3/52 provides higher surge capacity at the cost of increased board area and thermal design adjustments.
Availability
SMBJ13-E3/52 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and MOSFET gate driver protection requiring stable component supply across production lifecycles.
Supply support for SMBJ13-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and high-volume manufacturability.
The SMBJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust transient suppression in automotive, industrial, and telecom infrastructure where fast response, precise clamping, and AEC-Q101 qualification are critical.
FAQ
What is the standoff voltage (VWM) of SMBJ13-E3/52?
The standoff voltage (VWM) of SMBJ13-E3/52 is 13 V - the maximum DC or continuous reverse working voltage the device can withstand without entering breakdown. This value ensures compatibility with 12 V nominal systems while providing sufficient margin above typical rail voltages to avoid leakage-related power loss or false triggering during normal operation. The SMBJ13-E3/52 maintains ≤1.0 µA reverse leakage at this voltage.
Does SMBJ13-E3/52 meet AEC-Q101 qualification?
No, SMBJ13-E3/52 is the commercial-grade RoHS-compliant version (E3 suffix) and is not AEC-Q101 qualified. For automotive applications requiring AEC-Q101, the equivalent part is SMBJ13HE3_X (e.g., SMBJ13HE3_A), which carries the HE3 suffix and explicit qualification per AEC-Q101. The SMBJ13-E3/52 remains suitable for industrial and telecom use where AEC-Q101 is not mandated.
What is the clamping voltage of SMBJ13-E3/52 at its rated peak pulse current?
The clamping voltage (VC) of SMBJ13-E3/52 is 21.5 V at its rated peak pulse current (IPPM) of 27.9 A, measured using the standardized 10/1000 µs double-exponential waveform. This value represents the maximum voltage imposed on the protected circuit during a full-power transient event and is critical for ensuring downstream components remain within their absolute maximum ratings. The SMBJ13-E3/52 achieves this with a clamping ratio of approximately 1.65.
Can SMBJ13-E3/52 be used in bidirectional protection circuits?
No, SMBJ13-E3/52 is a unidirectional TVS diode, identifiable by its cathode band marking and specified electrical characteristics for single-polarity operation. For bidirectional protection, Vishay offers the SMBJ13CA variant (e.g., SMBJ13CA-E3/52), which has symmetrical breakdown in both directions and no polarity marking. Using SMBJ13-E3/52 in a bidirectional configuration would result in forward conduction and potential failure during negative transients.
What is the thermal resistance (RθJA) of SMBJ13-E3/52 under standard mounting conditions?
The typical junction-to-ambient thermal resistance (RθJA) of SMBJ13-E3/52 is 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as defined in the datasheet. This value governs derating of peak pulse power above 25 °C ambient temperature and must be applied in thermal design calculations to ensure junction temperature stays below 150 °C. The SMBJ13-E3/52 relies on PCB copper for heat spreading, not external heatsinking.
SMBJ13-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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.8V
- Current - Peak Pulse (10/1000µs):
- 25.2A
- 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)
SMBJ13-E3/52 FAQ
1.How can I place an order for SMBJ13-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13-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 SMBJ13-E3/52 reliable?
The price and inventory of SMBJ13-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 SMBJ13-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ13-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13-E3/52?
SMBJ13-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13-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 SMBJ13-E3/52?
For technical support, including SMBJ13-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13-E3/52 requirements.
6.How does Aetrix verify that SMBJ13-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ13-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 SMBJ13-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ13-E3/52?
All SMBJ13-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13-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 SMBJ13-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ13-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13-E3/52 Tags
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