Vishay General Semiconductor - Diodes Division SMBJ13CA-M3/52
- Part No.:
- SMBJ13CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13CA-M3/52.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMBJ13CA-M3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 13 V standoff 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 - used to protect MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMBJ13CA-M3/52 datasheet, SMBJ13CA-M3/52 pinout, SMBJ13CA-M3/52 application, or SMBJ13CA-M3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.45), halogen-free RoHS-compliant construction (M3 suffix), and compatibility with automated SMT placement on PCBs with 5.0 mm × 5.0 mm copper pads per terminal.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional junction structure, enabling protection of AC-coupled or differential signal paths without polarity sensitivity. Its glass-passivated silicon junction delivers sub-nanosecond response time and low incremental surge resistance, ensuring effective suppression of ESD, lightning-induced surges, and inductive switching transients.
The device is rated for continuous operation from –55 °C to +150 °C junction temperature, with thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. It meets J-STD-020 MSL Level 1 and is halogen-free per Vishay's M3 material specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum reverse working voltage before significant leakage; defines safe operating range for protected circuit. |
| VBR (min/max) | 14.4 V / 15.9 V at 1 mA - Confirmed breakdown threshold ensures reliable turn-on during overvoltage events. |
| VC @ IPPM | 21.5 V at 27.9 A - Clamped voltage limits stress on downstream components during 10/1000 µs surge. |
| PPPM | 600 W - Peak pulse power handling capacity with industry-standard 10/1000 µs waveform. |
| IPPM | 27.9 A - Maximum non-repetitive surge current supported under specified test conditions. |
| TJ max. | +150 °C - Enables use in high-temperature environments such as motor drives and power supplies. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; optimized for reflow soldering. |
Pinout & Package
Two-terminal SMB (DO-214AA) package with no polarity marking for bidirectional operation. Terminals are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (either direction) | One end of symmetrical P-N junction; accepts surge current regardless of polarity. |
| Cathode | Transient current exit (either direction) | Other end of symmetrical P-N junction; completes clamping path during bidirectional events. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or ungrounded lines without polarity concerns. |
| 600 W peak pulse power | Handles high-energy transients common in industrial motor controls and telecom line interfaces. |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for commercial-grade electronics manufacturing. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying SMT production flow. |
| Low clamping voltage (21.5 V) | Provides tighter voltage limiting than comparable 13 V-rated TVS devices, improving system-level robustness. |
Applications
| Industrial Motor Drive Control | Automotive Sensor Signal Protection |
|---|---|
Use Scenario: Protecting gate drivers and feedback sensing circuits from inductive kickback in 24 V DC motor control modules. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across MOSFET gate-source or op-amp input pins to limit transient excursions. Use Value: Prevents latch-up or permanent damage to precision analog front-ends during PWM switching transitions. | Use Scenario: Shielding LIN bus or analog sensor outputs (e.g., pressure, temperature) from load dump and jump-start surges. IC Role / Device Role / Timing Role: Standoff protection element on signal lines between microcontroller ADC inputs and external sensors. Use Value: Maintains signal integrity below 21.5 V clamping threshold while surviving >1000 surges per ISO 7637-2 Pulse 1/2a. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Safeguarding Ethernet PHY or RS-485 transceivers connected to outside plant wiring exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level surge suppressor mounted at connector entry point before isolation or signal conditioning stage. Use Value: Absorbs up to 600 W transient energy without degradation, preserving data link reliability in outdoor deployments. | Use Scenario: Protecting USB-C or barrel jack input stages in wall adapters against user-handling ESD and AC line transients. IC Role / Device Role / Timing Role: Secondary-side clamping device across DC output rails to prevent overvoltage propagation to connected devices. Use Value: Halogen-free M3 construction supports global regulatory compliance while maintaining fast response (<1 ns) to human-body-model ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13CA-E3/52 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3). | Preferred for cost-sensitive commercial designs where halogen content is unrestricted. | Select when halogen-free requirement is not mandated and lower unit cost is prioritized. |
| SAC13CA | Same VWM/VC, but 400 W PPPM; smaller SOD-123FL package (2.7 mm × 1.7 mm). | Better suited for space-constrained portable electronics; lower surge margin for industrial use. | Choose only if board area is critical and peak surge exposure is limited to IEC 61000-4-2/4-5 Level 3. |
Compared with SMBJ13CA-E3/52, the SMBJ13CA-M3/52 adds halogen-free compliance without sacrificing performance; versus SAC13CA, it trades footprint size for 50% higher surge power handling and superior thermal dissipation via SMB package copper pad layout.
Availability
SMBJ13CA-M3/52 is available at Aetrix Electronics and suitable for industrial motor drives, automotive sensor interfaces, and telecom line protection requiring stable component supply and full halogen-free compliance.
Supply support for SMBJ13CA-M3/52 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 and application-specific optimization.
The SMBJ series was developed for robust, surface-mount transient suppression in harsh environments - targeting industrial automation, automotive subsystems, and infrastructure equipment where long-term stability and surge immunity are critical.
FAQ
What is the standoff voltage rating of SMBJ13CA-M3/52?
The SMBJ13CA-M3/52 has a maximum reverse standoff voltage (VWM) of 13 V, meaning it remains in high-impedance state below this voltage and begins clamping above its breakdown range of 14.4–15.9 V. This rating ensures compatibility with 12 V nominal systems while providing margin against normal operating fluctuations - a key parameter verified in Vishay's Document Number 88392.
Is SMBJ13CA-M3/52 suitable for bidirectional signal line protection?
Yes, SMBJ13CA-M3/52 is explicitly designed as a bidirectional TVS diode, with symmetrical clamping characteristics in both polarities. Its CA suffix confirms bidirectional functionality, and electrical specifications apply equally in either direction - making it ideal for protecting RS-485, CAN, or audio differential pairs without polarity constraints.
Does SMBJ13CA-M3/52 meet automotive qualification standards?
No, SMBJ13CA-M3/52 is a commercial-grade halogen-free part (M3 suffix) and is not AEC-Q101 qualified. For automotive applications, Vishay offers the HM3 variant (e.g., SMBJ13CAHM3_B/H), which carries the same electrical specs plus AEC-Q101 qualification - confirmed in the ordering information table on page 3 of Document 88392.
What is the clamping voltage of SMBJ13CA-M3/52 under surge conditions?
The SMBJ13CA-M3/52 clamps to a maximum of 21.5 V at its rated peak pulse current of 27.9 A (10/1000 µs waveform). This value is measured per ANSI/IEEE C62.35 and represents the upper voltage limit imposed on protected circuitry during transient events - directly supporting design margin calculations for downstream ICs.
How does the M3 suffix affect the material composition of SMBJ13CA-M3/52?
The M3 suffix indicates that SMBJ13CA-M3/52 is halogen-free and RoHS-compliant, meeting Vishay's specification for reduced environmental impact without compromising electrical or thermal performance. Unlike E3 variants, M3 devices eliminate brominated flame retardants and chlorine-based compounds - verified in the Mechanical Data section of Document 88392.
SMBJ13CA-M3/52 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 27.9A
- 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)
SMBJ13CA-M3/52 FAQ
1.How can I place an order for SMBJ13CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13CA-M3/52 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 SMBJ13CA-M3/52 reliable?
The price and inventory of SMBJ13CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ13CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13CA-M3/52?
SMBJ13CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13CA-M3/52 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 SMBJ13CA-M3/52?
For technical support, including SMBJ13CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13CA-M3/52 requirements.
6.How does Aetrix verify that SMBJ13CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ13CA-M3/52 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 SMBJ13CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ13CA-M3/52?
All SMBJ13CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13CA-M3/52, 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 SMBJ13CA-M3/52 part is unused and in its original packaging.
Return procedure for SMBJ13CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13CA-M3/52 Tags

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