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Vishay General Semiconductor - Diodes Division SMBJ13CA-M3/5B
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- Part No.:
- SMBJ13CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13CA-M3/5B.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,375
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Product details
Overview
SMBJ13CA-M3/5B 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-M3/5B datasheet, SMBJ13CA-M3/5B pinout, SMBJ13CA-M3/5B application, or SMBJ13CA-M3/5B equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM = 1.65), halogen-free RoHS-compliant construction (M3 suffix), and compatibility with automated SMT placement on PCBs handling inductive switching surges.
Technical Context
This TVS diode operates symmetrically in both directions, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while the 100 °C/W junction-to-ambient thermal resistance supports operation up to +150 °C junction temperature under defined pad layout conditions.
The device meets MSL level 1 per J-STD-020, with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102, and exhibits fast response time (<1.0 ps) to transient events. It is not AEC-Q101 qualified (M3 suffix denotes commercial-grade halogen-free RoHS compliance only, not automotive qualification).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing range. |
| VBR min/max | 14.4 V / 15.9 V at 1 mA - Confirmed breakdown threshold range; ensures reliable triggering above VWM. |
| VC @ IPPM | 21.5 V at 27.9 A - Clamped voltage during 600 W surge; determines protected circuit's maximum stress level. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; validates robustness against lightning/inductive spikes. |
| ID @ VWM | ≤1.0 µA - Reverse leakage current at standoff voltage; ensures minimal signal path loading in high-impedance circuits. |
| TJ max | +150 °C - Maximum junction temperature; enables use in enclosed industrial enclosures without active cooling. |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with 5.21 mm × 4.06 mm footprint and 2.20 mm height. |
Pinout & Package
Package: SMB (DO-214AA) - molded plastic case with matte tin-plated leads; no polarity marking for bidirectional configuration; terminals are anode and cathode symmetrically arranged for dual-direction conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity event) | Conducts surge current when voltage at this terminal drops ≥VBR below cathode potential. |
| Cathode | Transient current entry (positive polarity event) | Conducts surge current when voltage at this terminal rises ≥VBR above anode potential. |
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 | Withstands 10/1000 µs transients up to 27.9 A - sufficient for IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge testing. |
| Low clamping ratio (VC/VWM = 1.65) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio suppressors. |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for commercial electronics without compromising surge performance. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life before reflow; eliminates baking requirement in standard SMT assembly. |
Applications
| Industrial Motor Drives | Telecom Line Interface |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensing lines against inductive kickback from relay coils and solenoid switching. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across MOSFET gate-source or op-amp input pins. Use Value: Limits transient overshoot to ≤21.5 V, preventing gate oxide rupture and analog front-end saturation during 600 W surge events. |
Use Scenario: Surge suppression on RS-485 or Ethernet PHY signal pairs exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Differential-line TVS mounted between A/B lines and ground, leveraging symmetrical clamping. Use Value: Maintains signal integrity by clamping both polarities equally, with <1.0 µA leakage preserving bus biasing accuracy. |
| Automotive Body Control Modules | Consumer Sensor Hubs |
Use Scenario: Input protection for LIN bus transceivers and switch inputs subjected to load dump and jump-start voltage spikes. IC Role / Device Role / Timing Role: Standoff-rated TVS on microcontroller GPIO lines interfacing with external switches or sensors. Use Value: Withstands repetitive 13 V standby operation while activating only during >14.4 V transients - no false triggering. |
Use Scenario: ESD and surge hardening of I²C/SPI lines connecting MEMS accelerometers, temperature sensors, and MCU. IC Role / Device Role / Timing Role: Low-capacitance TVS (typ. <200 pF at 0 V) placed directly at connector or sensor interface. Use Value: Adds <1.0 µA leakage and negligible RC delay, preserving 400 kHz I²C timing margins while blocking 8 kV HBM ESD. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13CA-E3/5B | RoHS-compliant but not halogen-free; same electrical specs and SMB package. | Acceptable where halogen content is unrestricted; slightly lower environmental compliance tier. | Select when cost optimization is prioritized over halogen-free requirement. |
| SAC13CA | Same VWM/VC, but in smaller SOD-123FL package (lower IPPM = 22.5 A, PPPM = 400 W). | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 3. | Choose only for space-constrained designs accepting reduced surge margin. |
Compared with SMBJ13CA-E3/5B, the M3 version adds halogen-free compliance without performance trade-offs; versus SAC13CA, SMBJ13CA-M3/5B delivers 50 % higher peak pulse power and 24 % higher clamping current - critical for industrial-grade surge immunity.
Availability
SMBJ13CA-M3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, and consumer sensor hubs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ13CA-M3/5B 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, and protection devices with emphasis on reliability, surge robustness, and manufacturing scalability.
The SMBJ series is engineered for high-energy transient suppression in commercial and industrial systems, balancing clamping performance, thermal stability, and SMT manufacturability in standardized packages.
FAQ
What does the "CA" suffix indicate in SMBJ13CA-M3/5B?
The "CA" suffix denotes a bidirectional configuration, meaning SMBJ13CA-M3/5B conducts and clamps transient voltages equally in both polarities - unlike unidirectional "A" variants that require correct anode/cathode orientation. This makes SMBJ13CA-M3/5B ideal for protecting AC-coupled lines, differential buses, or circuits where voltage polarity reversal is possible during surge events.
Is SMBJ13CA-M3/5B AEC-Q101 qualified?
No, SMBJ13CA-M3/5B is not AEC-Q101 qualified. The "M3" suffix indicates halogen-free, RoHS-compliant commercial-grade construction. For automotive-qualified versions, Vishay offers the HM3 suffix (e.g., SMBJ13CAHM3_B/I), which includes AEC-Q101 testing and qualification - SMBJ13CA-M3/5B lacks those test records and should not be used in safety-critical automotive applications without additional validation.
What is the maximum clamping voltage of SMBJ13CA-M3/5B and how is it measured?
The maximum clamping voltage (VC) of SMBJ13CA-M3/5B is 21.5 V, measured at a peak pulse current (IPPM) of 27.9 A using a 10/1000 µs waveform per IEC 61000-4-5. This value represents the highest voltage that appears across SMBJ13CA-M3/5B during a standardized surge event - a critical parameter for ensuring downstream components remain within their absolute maximum ratings.
Can SMBJ13CA-M3/5B replace SMBJ13A-M3/5B in a design?
No, SMBJ13CA-M3/5B cannot directly replace SMBJ13A-M3/5B without circuit review. SMBJ13A-M3/5B is unidirectional and requires correct polarity placement (cathode marked), whereas SMBJ13CA-M3/5B is bidirectional with no polarity marking. Swapping them may result in improper clamping behavior on DC-biased lines or failure to suppress negative-going transients in unidirectional configurations.
What PCB pad layout is recommended for optimal thermal performance of SMBJ13CA-M3/5B?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad area per terminal for SMBJ13CA-M3/5B to achieve the rated 600 W peak pulse power and 100 °C/W thermal resistance. Using smaller pads reduces surge current handling and increases junction temperature - derating curves in the datasheet (Fig. 2) must be applied if pad size is reduced. The SMBJ13CA-M3/5B datasheet provides exact mounting dimensions in inches and millimeters on page 5.
SMBJ13CA-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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-M3/5B FAQ
1.How can I place an order for SMBJ13CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13CA-M3/5B 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 SMBJ13CA-M3/5B reliable?
The price and inventory of SMBJ13CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ13CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13CA-M3/5B?
SMBJ13CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13CA-M3/5B 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 SMBJ13CA-M3/5B?
For technical support, including SMBJ13CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13CA-M3/5B requirements.
6.How does Aetrix verify that SMBJ13CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ13CA-M3/5B 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 SMBJ13CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ13CA-M3/5B?
All SMBJ13CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13CA-M3/5B, 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 SMBJ13CA-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ13CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13CA-M3/5B Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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