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Vishay General Semiconductor - Diodes Division SMBJ13HE3/5B
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- Part No.:
- SMBJ13HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13HE3/5B.pdf
- Description:
- TVS DIODE 13VWM 23.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,359
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Product details
Overview
SMBJ13HE3/5B from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in 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 1.0 mA test current, and clamps transients to ≤21.5 V at 27.9 A peak pulse current (IPPM) under 10/1000 µs waveform - deployed on power rails and signal lines in industrial motor drives and automotive ECUs.
For engineers reviewing the SMBJ13HE3/5B datasheet, SMBJ13HE3/5B pinout, SMBJ13HE3/5B application, or SMBJ13HE3/5B equivalent, key selection criteria include its AEC-Q101 qualification, 600 W peak pulse power rating, low 0.084 %/°C VBR temperature coefficient, and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging a glass-passivated silicon junction to deliver fast response (<1 ps) and low incremental surge resistance. Its cathode-band polarity marking enables unambiguous orientation during PCB placement, and it meets MSL Level 1 per J-STD-020 with 260 °C reflow peak tolerance.
The SMBJ13HE3/5B is rated for continuous operation from −55 °C to +150 °C junction temperature, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). Its 5.0 W steady-state power dissipation supports sustained leakage management in high-reliability environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 13 V - maximum DC or RMS voltage the device blocks without clamping; sets operating margin before transient activation. |
| VBR (Breakdown Voltage) | 14.4–15.9 V at 1.0 mA - guaranteed conduction onset range; ensures predictable turn-on across temperature and unit variation. |
| VC (Clamping Voltage) | ≤21.5 V at 27.9 A (10/1000 µs) - peak voltage seen by protected circuit during surge; defines worst-case stress on downstream ICs. |
| PPPM (Peak Pulse Power) | 600 W - transient energy-handling capacity; validates protection against IEC 61000-4-5 Level 4 surges when properly mounted. |
| IPPM (Peak Pulse Current) | 27.9 A - maximum non-repetitive surge current supported; determines survivability against lightning-induced or inductive-switching transients. |
| TJmax | +150 °C - maximum junction temperature; enables use in under-hood automotive and industrial power supply applications. |
| Temperature Coefficient of VBR | 0.084 %/°C - quantifies VBR drift with temperature; critical for stable clamping performance across wide ambient ranges. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile 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 aligned along the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential side of protected line. | Defines reference node for unidirectional clamping - must be tied to ground or return path to enable proper surge shunting. |
| Cathode | Current exit terminal in forward bias; marked by visible band on package body. | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when VAK exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, ADAS, and body electronics. |
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-earth) when used with appropriate series impedance and PCB layout. |
| Glass passivated junction | Ensures stable leakage current (<1.0 µA at VWM) and long-term parameter stability under humidity and thermal stress. |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without moisture-related popcorning - eliminates pre-bake requirement in high-volume SMT lines. |
| Low profile SMB package | 0.220" × 0.155" footprint with 0.096" height - fits dense layouts in space-constrained modules such as battery management systems and motor drivers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V power inputs in engine control units (ECUs) against load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery feed and input filter capacitor. Use Value: Limits transient voltage to ≤21.5 V, preventing damage to downstream DC-DC controllers and microcontrollers rated for 28 V absolute max. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF) unidirectional clamp on signal path, grounded at controller end. Use Value: Suppresses ESD (±8 kV contact) and fast transients (IEC 61000-4-4) without distorting low-frequency sensor signals or adding measurable offset. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
|
Use Scenario: Safeguarding 48 V DC input of PoE-powered network switches against induced surges from nearby AC mains or lightning coupling. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of hot-swap controller and bulk capacitor. Use Value: Absorbs 600 W surges without degradation, maintaining system uptime during field deployment in outdoor telecom cabinets. |
Use Scenario: Adding secondary-level surge protection on VBUS line of USB-C ports in portable monitors and docking stations. IC Role / Device Role / Timing Role: Secondary TVS after primary common-mode choke, oriented cathode-to-VBUS, anode-to-ground. Use Value: Clamps VBUS to <22 V during 10/1000 µs surges, preserving USB PD negotiation integrity and preventing port controller latch-up. |
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-E3/5B | Commercial-grade (non-AEC-Q101), identical electrical specs and SMB package. | Lacks automotive qualification; not approved for under-hood or safety-critical vehicle subsystems. | Select when cost sensitivity outweighs automotive compliance requirements and operating temperature stays ≤125 °C. |
| SMAJ13AHE3/A | Same VWM/VBR/VC, but in smaller SMA (DO-214AC) package with lower PPPM (400 W) and higher RθJA (140 °C/W). | Reduced surge handling and thermal margin; unsuitable for high-energy industrial transients or high-ambient environments. | Choose only for space-constrained consumer designs where 400 W surge capability suffices and board area is premium. |
Compared with SMBJ13A-E3/5B, the SMBJ13HE3/5B adds AEC-Q101 validation and extended temperature support; versus SMAJ13AHE3/A, it delivers 50 % higher surge power and superior thermal performance in the same production footprint.
Availability
SMBJ13HE3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power supplies, and USB-C peripheral protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMBJ13HE3/5B 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 optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges is unacceptable.
FAQ
What is the clamping voltage of SMBJ13HE3/5B at its rated peak pulse current?
The SMBJ13HE3/5B clamps to a maximum of 21.5 V when subjected to its specified peak pulse current of 27.9 A under the standard 10/1000 µs waveform. This value is measured at TA = 25 °C with devices mounted on 0.2" × 0.2" copper pads per the datasheet's test condition - critical for verifying voltage margin of protected ICs like CAN transceivers or LDO regulators.
Is SMBJ13HE3/5B suitable for automotive applications?
Yes, SMBJ13HE3/5B is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It undergoes rigorous stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD verification - making it appropriate for engine control modules, body control units, and ADAS power domains where reliability under thermal and electrical stress is mandatory.
How does the thermal resistance of SMBJ13HE3/5B affect its power handling in real-world PCB layouts?
SMBJ13HE3/5B has a typical RθJA of 100 °C/W and RθJL of 20 °C/W. In practice, this means that with 5.0 W steady-state dissipation and no heatsink, junction temperature rises ~500 °C above ambient - underscoring that the device is intended for transient-only duty. Real-world derating requires adhering to the manufacturer's recommended 0.2" × 0.2" copper pad layout to achieve published surge ratings; smaller pads reduce IPPM capability significantly.
What is the meaning of the "5B" in SMBJ13HE3/5B?
The "5B" in SMBJ13HE3/5B denotes the preferred package code indicating 13-inch diameter plastic tape-and-reel packaging containing 3200 units per reel. This format is optimized for high-speed pick-and-place assembly and aligns with IPC-7351 standards for SMB (DO-214AA) footprint placement - distinct from "52" (7-inch reel, 750 units) used in low-volume prototyping or manual assembly.
Does SMBJ13HE3/5B have bidirectional capability?
No, SMBJ13HE3/5B is a unidirectional TVS diode, as confirmed by its part number suffix and datasheet specifications. Bidirectional variants use the "CA" suffix (e.g., SMBJ13CA). The unidirectional configuration provides lower leakage and sharper knee characteristics for DC rail protection, with polarity defined by the cathode band - incorrect orientation will prevent clamping during positive transients.
SMBJ13HE3/5B 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):
- 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)
SMBJ13HE3/5B FAQ
1.How can I place an order for SMBJ13HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13HE3/5B 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 SMBJ13HE3/5B reliable?
The price and inventory of SMBJ13HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13HE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ13HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13HE3/5B?
SMBJ13HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13HE3/5B 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 SMBJ13HE3/5B?
For technical support, including SMBJ13HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13HE3/5B requirements.
6.How does Aetrix verify that SMBJ13HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ13HE3/5B 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 SMBJ13HE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ13HE3/5B?
All SMBJ13HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13HE3/5B, 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 SMBJ13HE3/5B part is unused and in its original packaging.
Return procedure for SMBJ13HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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