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Vishay General Semiconductor - Diodes Division SMBJ13CAHE3/52
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- Part No.:
- SMBJ13CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13CAHE3/52.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,761
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Product details
Overview
SMBJ13CAHE3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features 13 V standoff voltage (VWM), 14.4–15.9 V breakdown range (VBR at 1 mA), 21.5 V clamping voltage (VC) at 27.9 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in industrial sensor interfaces.
For engineers reviewing the SMBJ13CAHE3/52 datasheet, SMBJ13CAHE3/52 pinout, SMBJ13CAHE3/52 application, or SMBJ13CAHE3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, clamping performance under surge conditions, and real-world use context for ESD/lightning transient suppression in automotive-grade embedded systems.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling protection of AC-coupled or floating 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 reflects standard PCB pad layout (0.2" × 0.2") mounting per JEDEC standards.
The device meets MSL Level 1 per J-STD-020, supports lead-free reflow up to 260 °C peak, and is qualified to AEC-Q101 for automotive applications - confirmed by the "HE3" suffix. Its 20 °C/W junction-to-lead thermal resistance enables effective heat dissipation into copper traces during repetitive surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 12 V nominal systems. |
| VBR (min/max) | 14.4 V / 15.9 V at 1 mA - guaranteed breakdown onset window; ensures predictable turn-on during transients above system rail. |
| VC @ IPPM | 21.5 V at 27.9 A - clamped voltage during 10/1000 µs surge; limits downstream IC stress to safe levels below 24 V logic thresholds. |
| PPPM | 600 W - peak pulse power handling capacity; sustains high-energy lightning-induced surges per IEC 61000-4-5 Level 4. |
| RθJA | 100 °C/W - thermal resistance with standard 0.2" × 0.2" copper pads; informs derating above 25 °C ambient for sustained reliability. |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures. |
| AEC-Q101 | Qualified - validated for automotive electronic modules requiring extended temperature cycling, humidity resistance, and mechanical shock endurance. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no band marking required. |
| Terminal 2 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 1; enables symmetrical clamping on differential or AC signal lines. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients from inductive switching or EFT bursts without degradation. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain, body control, and ADAS modules requiring long-term field reliability. |
| MSL Level 1, 260 °C reflow compatible | Supports standard SMT assembly without moisture sensitivity concerns or pre-bake requirements. |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes overvoltage overshoot during fast transients, protecting 16 V tolerant interface ICs. |
| 1.0 µA max reverse leakage at VWM | Prevents standby current drain in battery-powered sensor nodes and low-power IoT endpoints. |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
Use Scenario: Protecting LIN/CAN transceivers and analog sensor front-ends (e.g., pressure, temperature) against load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before reaching PHY layer. Use Value: Maintains signal integrity under ±25 V transients while holding clamped voltage below 22 V - within absolute maximum ratings of TJA1042 and SN65HVD230. |
Use Scenario: Safeguarding CAN FD physical layer against ESD (IEC 61000-4-2 ±25 kV air) and burst noise on factory-floor networks. IC Role / Device Role / Timing Role: Low-capacitance TVS across CAN_H/CAN_L differential pair to suppress common-mode transients without distorting bit timing. Use Value: Clamps to 21.5 V within <1 ns, preserving CAN bit rate up to 5 Mbps and meeting ISO 11898-2 EMC immunity requirements. |
| Smart Meter Power Supply Input | PLC Analog Input Module Protection |
Use Scenario: Guarding 12 V auxiliary supply rails in utility smart meters exposed to lightning-induced surges on AC mains coupling paths. IC Role / Device Role / Timing Role: Primary overvoltage clamp ahead of DC/DC converter input, coordinated with MOV and fuse for staged protection. Use Value: Absorbs 600 W surge energy without failure, enabling compliance with ANSI C12.1 and IEC 62053-31 surge immunity tests. |
Use Scenario: Shielding 4–20 mA current loop inputs in programmable logic controllers from accidental 24 V DC wiring faults and field-induced transients. IC Role / Device Role / Timing Role: Bidirectional shunt device across loop terminals to limit fault voltage to ≤22 V during short-circuit or miswiring events. Use Value: Prevents damage to precision op-amps and ADCs (e.g., ADS1220) while maintaining loop accuracy via sub-µA leakage at 24 V nominal. |
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 | Commercial-grade version; lacks AEC-Q101 qualification and uses RoHS-compliant but non-automotive-grade process. | Suitable for industrial and consumer equipment where automotive reliability validation is not mandated. | Select when cost sensitivity outweighs automotive qualification requirements and full lifecycle traceability is not needed. |
| SMCJ13CAHE3_A/H | Same VWM/VC specs but in larger SMC (DO-214AB) package; higher 1500 W PPPM, lower RθJA (50 °C/W). | Better suited for high-reliability power supply inputs needing greater surge margin and thermal headroom. | Choose when board space allows larger footprint and system-level surge testing exceeds IEC 61000-4-5 Level 4. |
Compared with SMBJ13CA-E3/52, the SMBJ13CAHE3/52 adds AEC-Q101 validation for automotive deployment, while the SMCJ13CAHE3_A/H offers higher surge capacity and thermal performance at the cost of increased PCB area - making SMBJ13CAHE3/52 optimal for space-constrained automotive sensor nodes requiring certified reliability.
Availability
SMBJ13CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, smart meter power supplies, and PLC analog input modules requiring stable component supply with full AEC-Q101 traceability and long-term production support.
Supply support for SMBJ13CAHE3/52 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 high-reliability and automotive-grade solutions.
The SMBJ series targets board-level transient protection in harsh environments - engineered for rapid response, stable clamping, and qualification to AEC-Q101, ISO/TS 16949, and UL 497B safety standards.
FAQ
What is the clamping voltage of SMBJ13CAHE3/52 at its rated peak pulse current?
The SMBJ13CAHE3/52 has a maximum clamping voltage (VC) of 21.5 V at 27.9 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and ensures downstream circuitry remains within safe operating limits during surge events. The SMBJ13CAHE3/52 maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C), supporting reliable protection in automotive and industrial applications.
Is SMBJ13CAHE3/52 suitable for bidirectional signal line protection?
Yes, SMBJ13CAHE3/52 is explicitly designed as a bidirectional TVS diode - indicated by the "CA" suffix - and provides symmetrical clamping in both polarities. It requires no polarity marking on PCB layout and is commonly applied across differential buses like CAN, RS-485, and USB D+/D− lines. The SMBJ13CAHE3/52 delivers matched VBR and VC characteristics regardless of transient direction, ensuring consistent protection without signal inversion or bias dependency.
Does SMBJ13CAHE3/52 meet automotive qualification standards?
Yes, SMBJ13CAHE3/52 is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number and documented in Vishay's official datasheet revision 09-Jan-2024. This qualification covers stress tests including temperature cycling, humidity bias, mechanical shock, and accelerated life testing - validating its suitability for automotive powertrain, chassis, and body electronics. The SMBJ13CAHE3/52 is manufactured under IATF 16949-certified processes and supports PPAP documentation upon request.
What is the thermal resistance of SMBJ13CAHE3/52, and how does it affect layout design?
The SMBJ13CAHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - matching JEDEC standard test conditions. This value guides PCB thermal design: reducing pad size or omitting thermal vias increases RθJA, risking thermal runaway during repetitive surges. For high-duty-cycle applications, designers should consider the SMBJ13CAHE3/52's 20 °C/W junction-to-lead resistance and add internal copper planes to improve heat spreading.
How does SMBJ13CAHE3/52 compare to unidirectional variants like SMBJ13AHE3/52?
The SMBJ13CAHE3/52 differs from unidirectional SMBJ13AHE3/52 in polarity behavior: SMBJ13CAHE3/52 clamps equally in both directions with no cathode marking, while SMBJ13AHE3/52 conducts only in reverse bias and requires correct orientation on PCB. Both share identical VWM (13 V), VBR, VC, and PPPM (600 W), but SMBJ13AHE3/52 supports forward surge current (IFSM = 100 A) - irrelevant for SMBJ13CAHE3/52 due to bidirectional blocking. Use SMBJ13CAHE3/52 for AC-coupled or floating lines; choose SMBJ13AHE3/52 for DC rails with defined ground reference.
SMBJ13CAHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ13CAHE3/52 FAQ
1.How can I place an order for SMBJ13CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13CAHE3/52 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 SMBJ13CAHE3/52 reliable?
The price and inventory of SMBJ13CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ13CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13CAHE3/52?
SMBJ13CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13CAHE3/52 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 SMBJ13CAHE3/52?
For technical support, including SMBJ13CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13CAHE3/52 requirements.
6.How does Aetrix verify that SMBJ13CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ13CAHE3/52 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 SMBJ13CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ13CAHE3/52?
All SMBJ13CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13CAHE3/52, 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 SMBJ13CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ13CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13CAHE3/52 Tags
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