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Vishay General Semiconductor - Diodes Division SMBJ13CA/54
- Part No.:
- SMBJ13CA/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13CA/54.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,062
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Product details
Overview
SMBJ13CA/54 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 13 V standoff voltage (VWM), 14.4–15.9 V breakdown voltage (VBR) at 1 mA, and clamps transients to ≤21.5 V at 27.9 A peak pulse current (IPPM) under 10/1000 µs waveform - enabling reliable protection of I/O lines, power rails, and sensor interfaces in industrial and telecom systems.
For engineers reviewing the SMBJ13CA/54 datasheet, SMBJ13CA/54 pinout, SMBJ13CA/54 application, or SMBJ13CA/54 equivalent, this device delivers verified 600 W peak pulse power handling, low clamping ratio (VC/VBR ≈ 1.45), and AEC-Q101 qualification options - critical for selecting TVS components in automotive-grade power supply and signal line protection designs.
Technical Context
The SMBJ13CA/54 operates as a bidirectional avalanche diode, symmetrically clamping voltage surges in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the low incremental surge resistance (rd) minimizes voltage overshoot during transient events.
Thermally, it exhibits RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation up to +150 °C junction temperature. The device complies with ANSI/IEEE C62.35 and meets UL 497B recognition (QVGQ2), with MSL Level 1 moisture sensitivity and matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 13 V - maximum continuous reverse operating voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 14.4–15.9 V at 1 mA - guaranteed avalanche initiation range; ensures predictable turn-on across temperature and unit variation |
| VC (Clamping Voltage) | ≤21.5 V at IPPM = 27.9 A (10/1000 µs) - limits protected circuit voltage during surge; enables compatibility with 24 V system ICs |
| PPPM (Peak Pulse Power) | 600 W - handles high-energy transients like ISO 7637-2 Pulse 1/2a/5a; supports repetitive surge duty cycle ≤0.01 % |
| IPPM (Peak Pulse Current) | 27.9 A - quantifies surge current handling capability; derived from VC and PPPM; validates protection against 500 V/2 Ω load dump |
| TJmax | +150 °C - enables use in under-hood automotive and industrial environments without thermal derating penalties |
| Package | SMB (DO-214AA) - surface-mount footprint (5.21 × 4.06 mm) compatible with automated placement; no polarity marking for bidirectional use |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no cathode/anode marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no functional distinction in layout |
| Terminal 2 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 1; device functions identically regardless of orientation on PCB |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables compliance with IEC 61000-4-5 Level 4 (4 kV) when combined with appropriate series impedance |
| Low clamping voltage (VC/VBR ≈ 1.45) | Minimizes stress on downstream ICs by limiting transient overshoot - critical for 3.3 V/5 V logic interface protection |
| Fast response time (<1 ns) | Activates before most semiconductor damage thresholds are exceeded, preserving MOSFET gate oxides and microcontroller I/O cells |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without pre-baking or special handling requirements |
| AEC-Q101 qualified variants available | Validated for automotive applications including body control modules and infotainment power supplies (via HE3/HM3 suffixes) |
Applications
| Industrial Sensor Interface | Automotive Power Supply Rail |
|---|---|
|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) from ESD and inductive switching noise in PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pair or single-ended output to ground. Use Value: Clamps transients to ≤21.5 V while maintaining <1 μA leakage at 13 V, preventing ADC saturation and signal corruption. |
Use Scenario: Safeguarding 12 V/24 V power inputs in automotive ECUs against load dump and jump-start surges. IC Role / Device Role / Timing Role: Parallel-connected TVS at main input stage, upstream of DC-DC converter. Use Value: Absorbs 600 W pulses without degradation, meeting ISO 16750-2 requirements for 35 V/100 ms load dump immunity. |
| Telecom Line Protection | Consumer USB Port ESD Guard |
|
Use Scenario: Shielding RS-485/RS-232 transceivers in base station backhaul equipment from lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamp between data line and chassis ground, with series current-limiting resistor. Use Value: Symmetric clamping ensures equal protection for positive/negative transients; 21.5 V clamp preserves transceiver common-mode range. |
Use Scenario: Adding secondary-level ESD protection to USB 2.0 VBUS and D+/D− lines in smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ ≈ 200 pF at 0 V) placed adjacent to connector. Use Value: Handles ±15 kV contact discharge (IEC 61000-4-2) without affecting 480 Mbps signal integrity due to controlled clamping dynamics. |
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-E3/52 | Same electrical specs; RoHS-compliant commercial-grade variant with 7″ tape-and-reel packaging (750 pcs) | No AEC-Q101 qualification; intended for non-automotive industrial/commercial use | Select when cost-sensitive volume production requires standard commercial-grade reliability and packaging |
| SMBJ13CAHE3_B/I | Identical electrical specs; adds AEC-Q101 qualification, halogen-free RoHS compliance, and 13″ tape-and-reel (3200 pcs) | Qualified for automotive powertrain and body electronics per AEC-Q101 Rev G | Select when automotive OEM or Tier-1 compliance (e.g., PPAP, traceability) is mandatory |
Compared with SMBJ13CA/54, the E3/52 variant offers lower unit cost and faster availability for commercial designs, while the HE3_B/I variant provides certified automotive reliability and extended reel quantity - enabling direct substitution where qualification scope aligns with end-application requirements.
Availability
SMBJ13CA/54 is available at Aetrix Electronics and suitable for industrial sensor interface, automotive power supply rail, telecom line protection, and consumer USB port ESD guard applications requiring stable component supply and consistent surge performance across production batches.
Supply support for SMBJ13CA/54 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, power efficiency, and application-specific validation.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial automation, and telecom infrastructure where robustness against ESD, EFT, and surge events is non-negotiable.
FAQ
What is the clamping voltage of SMBJ13CA/54 at its rated peak pulse current?
The SMBJ13CA/54 clamps to a maximum of 21.5 V at its rated peak pulse current of 27.9 A under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024 (Document Number: 88392). The clamping behavior remains consistent across bidirectional polarity, making SMBJ13CA/54 suitable for AC-coupled or floating signal line protection where polarity reversal may occur.
Is SMBJ13CA/54 unidirectional or bidirectional, and how does that affect PCB layout?
SMBJ13CA/54 is a bidirectional TVS diode, meaning it has no polarity marking and functions identically regardless of orientation on the PCB. Unlike unidirectional variants (e.g., SMBJ13A), SMBJ13CA/54 suppresses transients in both directions - ideal for protecting AC signals, differential buses, or floating grounds. Layout requires no attention to cathode band alignment, simplifying placement and reducing assembly errors.
Does SMBJ13CA/54 meet automotive qualification standards?
The base SMBJ13CA/54 part is not AEC-Q101 qualified; however, Vishay offers functionally identical variants with AEC-Q101 certification - specifically SMBJ13CAHE3_B/I and SMBJ13CAHM3_B/I - which share identical electrical parameters and SMB package dimensions. These qualified versions undergo stress testing per AEC-Q101 Rev G and are designated for automotive powertrain and body electronics applications.
What is the thermal resistance and maximum junction temperature rating for SMBJ13CA/54?
SMBJ13CA/54 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W, measured on the recommended 0.2″ × 0.2″ copper pad layout. Its maximum operating junction temperature is +150 °C, allowing reliable operation in high-temperature environments such as engine compartments or enclosed industrial enclosures without forced cooling.
How does the 600 W peak pulse power rating of SMBJ13CA/54 translate to real-world surge immunity?
The 600 W rating for SMBJ13CA/54 corresponds to its ability to absorb a single 10/1000 µs transient event delivering up to 27.9 A at 21.5 V - sufficient to meet IEC 61000-4-5 Level 4 (4 kV) when used with appropriate series impedance (e.g., 2 Ω line impedance). In practice, this enables protection against inductive switch-off spikes, relay bounce, and moderate lightning-induced surges in 24 V industrial control systems.
SMBJ13CA/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Cut Tape (CT)
- 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/54 FAQ
1.How can I place an order for SMBJ13CA/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13CA/54 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/54 reliable?
The price and inventory of SMBJ13CA/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13CA/54 is usually 5 days.
3.What payment methods are accepted for SMBJ13CA/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13CA/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13CA/54?
SMBJ13CA/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13CA/54 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/54?
For technical support, including SMBJ13CA/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13CA/54 requirements.
6.How does Aetrix verify that SMBJ13CA/54 is sourced from the original manufacturer or authorized distributors?
All SMBJ13CA/54 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/54 meets industry standards.
7.What is the process for return or replacement of SMBJ13CA/54?
All SMBJ13CA/54 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13CA/54, 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/54 part is unused and in its original packaging.
Return procedure for SMBJ13CA/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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