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Vishay General Semiconductor - Diodes Division SMBJ13HE3/52
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- Part No.:
- SMBJ13HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13HE3/52.pdf
- Description:
- TVS DIODE 13VWM 23.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,503
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Product details
Overview
SMBJ13HE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 13 V stand-off voltage (VWM), 14.4–15.9 V breakdown voltage (VBR) at 1 mA, 21.5 V maximum clamping voltage (VC) at 27.9 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power supply rails and industrial sensor interfaces.
For engineers reviewing the SMBJ13HE3/52 datasheet, SMBJ13HE3/52 pinout, SMBJ13HE3/52 application, or SMBJ13HE3/52 equivalent, this device serves as a primary clamping element in DC power line surge protection, requiring verification of unidirectional polarity, thermal derating above 25 °C, and PCB pad layout compliance with 0.2" × 0.2" copper area per terminal.
Technical Context
The SMBJ13HE3/52 operates as a silicon avalanche diode with glass-passivated junction, delivering sub-nanosecond response to transients induced by inductive load switching or ESD events. Its unidirectional configuration enforces cathode-band polarity, enabling precise placement in series with positive supply lines while blocking reverse leakage (<1.0 µA at 13 V).
Thermal performance is defined by RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting operation up to +150 °C junction temperature. It meets AEC-Q101 qualification and J-STD-020 MSL Level 1, with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit's nominal DC rail. |
| VBR (min/max) | 14.4 V / 15.9 V at IT = 1 mA - Confirmed avalanche onset range; ensures reliable triggering above system operating voltage. |
| VC @ IPPM | 21.5 V at 27.9 A - Clamped voltage during 600 W transient; defines worst-case overvoltage seen by downstream ICs. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; validates immunity to IEC 61000-4-5 Level 4 surges. |
| IFSM | 100 A - Non-repetitive forward surge current (8.3 ms half-sine); supports protection against accidental short-circuit transients. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments and enclosed industrial enclosures. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place and reflow profiles up to 260 °C peak. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads. Cathode indicated by band on body; anode and cathode terminals are axially oriented along the long dimension.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side (for unidirectional configuration) | Connected to source of transient energy (e.g., battery feed or signal line input); must be placed upstream of protected load. |
| Cathode | Output/Load side (marked with band) | Connected toward protected circuit ground or low-impedance return path; establishes clamping reference and conduction direction. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for engine control, ADAS, and infotainment modules. |
| 600 W peak pulse power (10/1000 µs) | Withstands repeated lightning-induced surges per IEC 61000-4-5 without degradation - eliminates need for external series impedance in many 12 V/24 V systems. |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes overvoltage stress on downstream MOSFETs or microcontrollers during clamping - critical for 3.3 V or 5 V logic interface protection. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow assembly without moisture sensitivity concerns - reduces manufacturing risk and BOM complexity. |
| Glass passivated junction | Provides stable VBR tolerance and low leakage (<1 µA) over lifetime - ensures long-term reliability in harsh industrial environments. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping element placed between battery input and DC-DC converter input stage. Use Value: Limits transient voltage to ≤21.5 V, preventing damage to 36 V-rated input stages and maintaining functional safety integrity. |
Use Scenario: 4–20 mA current loop sensors in factory automation subject to cable ESD and motor drive coupling. IC Role / Device Role / Timing Role: Unidirectional TVS shunting transients on analog signal inputs before instrumentation amplifier. Use Value: Clamps fast-rising ESD events (<1 ns rise time) below 21.5 V, preserving 16-bit ADC accuracy and avoiding latch-up. |
| Telecom DC Power Input Protection | Consumer USB-C Power Delivery Port |
Use Scenario: -48 V telecom rectifier outputs feeding PoE injectors vulnerable to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on DC input rail, paired with MOV for differential-mode suppression. Use Value: Provides precise 13 V standoff with low leakage, ensuring no standby current drain while enabling 600 W surge absorption. |
Use Scenario: USB-C PD port VBUS line in portable monitors subjected to hot-plug transients and cable discharge events. IC Role / Device Role / Timing Role: Secondary clamping device downstream of primary fuse and common-mode choke. Use Value: Fast response (<1 ns) and low capacitance (<100 pF) prevent signal integrity loss on 10 Gbps USB3.2 Gen2x2 lanes. |
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 | No AEC-Q101 qualification; commercial-grade only; identical electrical specs and SMB package. | Not suitable for automotive production; acceptable for industrial prototypes or non-safety-critical consumer designs. | Select SMBJ13A-E3/52 when AEC-Q101 is not mandated and cost optimization is prioritized. |
| SAC13 | Same VWM (13 V) but lower PPPM (400 W); SOD-123FL package (smaller footprint, higher thermal resistance). | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 4. | Choose SAC13 only for space-constrained, low-power applications where 400 W surge margin is sufficient. |
Compared with SMBJ13A-E3/52, the SMBJ13HE3/52 adds automotive qualification without altering clamping behavior; versus SAC13, it delivers 50 % higher surge power in a thermally superior SMB package - making it the preferred choice for production-grade 12 V system protection.
Availability
SMBJ13HE3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power inputs requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for SMBJ13HE3/52 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, efficiency, and application-specific performance.
The SMBJ series was developed for high-energy transient suppression in automotive, industrial, and telecom infrastructure - emphasizing AEC-Q101 compliance, low clamping voltage, and robust thermal design in compact surface-mount packages.
FAQ
What is the maximum clamping voltage of SMBJ13HE3/52 under rated surge conditions?
The SMBJ13HE3/52 exhibits a maximum clamping voltage (VC) of 21.5 V when subjected to its rated peak pulse current of 27.9 A (10/1000 µs waveform). This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events. The SMBJ13HE3/52 maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is SMBJ13HE3/52 suitable for bidirectional transient protection?
No, SMBJ13HE3/52 is a unidirectional TVS diode, identified by its cathode band marking and specified breakdown characteristics only in the reverse direction. For bidirectional protection, Vishay offers the SMBJ13CA variant. Using SMBJ13HE3/52 in bidirectional configurations risks forward conduction and failure during positive transients - always verify polarity alignment in schematic and layout for the SMBJ13HE3/52.
Does SMBJ13HE3/52 require heatsinking in standard PCB layouts?
The SMBJ13HE3/52 does not require external heatsinking when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. Its RθJA of 100 °C/W allows safe operation at full 5.0 W steady-state dissipation up to +50 °C ambient. Derating is required above that temperature, and thermal simulation is advised for high-density or enclosed assemblies using SMBJ13HE3/52.
What is the meaning of the "HE3" suffix in SMBJ13HE3/52?
The "HE3" suffix in SMBJ13HE3/52 denotes RoHS-compliant construction with AEC-Q101 qualification - distinguishing it from commercial-grade variants like SMBJ13A-E3/52. The "H" indicates automotive qualification, "E3" confirms RoHS compliance and matte tin plating, and "/52" specifies packaging in 7" tape-and-reel format with 750 units per reel. This coding ensures traceability and compliance for automotive production use of SMBJ13HE3/52.
How does SMBJ13HE3/52 compare to SMAJ13A in terms of surge capability?
The SMBJ13HE3/52 delivers 600 W peak pulse power (10/1000 µs), whereas the SMAJ13A is rated for 400 W in the same waveform - a 50 % higher surge capacity. This difference arises from the larger SMB (DO-214AA) package of SMBJ13HE3/52 versus the smaller SMA (DO-214AC) of SMAJ13A, enabling greater thermal mass and lower junction-to-lead resistance (RθJL = 20 °C/W vs. ~30 °C/W). Designers selecting SMBJ13HE3/52 gain enhanced margin for demanding applications like automotive load dump.
SMBJ13HE3/52 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ13HE3/52 FAQ
1.How can I place an order for SMBJ13HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13HE3/52 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 SMBJ13HE3/52 reliable?
The price and inventory of SMBJ13HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13HE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ13HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13HE3/52?
SMBJ13HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13HE3/52 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 SMBJ13HE3/52?
For technical support, including SMBJ13HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13HE3/52 requirements.
6.How does Aetrix verify that SMBJ13HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ13HE3/52 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 SMBJ13HE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ13HE3/52?
All SMBJ13HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13HE3/52, 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 SMBJ13HE3/52 part is unused and in its original packaging.
Return procedure for SMBJ13HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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