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Vishay General Semiconductor - Diodes Division SMBJ10CA-E3/52
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- Part No.:
- SMBJ10CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10CA-E3/52.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,934
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Product details
Overview
SMBJ10CA-E3/52 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 and power lines. It features a 10 V stand-off voltage (VWM), 17.0 V maximum clamping voltage (VC) at 35.3 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), protecting MOSFETs and sensor interfaces in industrial and telecom equipment.
For engineers reviewing the SMBJ10CA-E3/52 datasheet, SMBJ10CA-E3/52 pinout, SMBJ10CA-E3/52 application, or SMBJ10CA-E3/52 equivalent, this device is selected for robust ESD and surge protection where bidirectional clamping, low clamping ratio (1.7× VWM), and AEC-Q101–qualified variants are required - especially in automotive sensor modules, industrial I/O protection, and telecom line interface circuits.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified at 11.1–12.3 V (min/max) at 1.0 mA test current, and reverse leakage current ≤5.0 µA at 10 V stand-off. Its junction capacitance is not specified in the datasheet, confirming it is optimized for transient suppression-not high-frequency signal integrity.
The device uses a glass-passivated silicon junction, achieves MSL Level 1 per J-STD-020 (peak reflow 260 °C), and delivers 150 °C maximum junction temperature. Its thermal resistance (RθJA) is 100 °C/W on standard 0.2" × 0.2" copper pads-critical for estimating power derating above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VC @ IPPM | 17.0 V at 35.3 A - Clamped voltage during 600 W transient; ensures protected ICs see <17 V under worst-case surge. |
| IPPM (10/1000 µs) | 35.3 A - Peak surge current capability; determines survivability against IEC 61000-4-5 Level 4 (4 kV/2 Ω) events. |
| PPPM | 600 W - Peak pulse power rating; validates suitability for repetitive surge environments with 0.01% duty cycle. |
| TJmax | 150 °C - Maximum junction temperature; sets thermal design limits for PCB copper pad area and airflow requirements. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline (5.21 mm × 4.06 mm × 2.20 mm); compatible with automated pick-and-place and reflow. |
| RoHS Compliance | E3 suffix - Lead-free, RoHS-compliant matte tin-plated terminals; meets J-STD-002 solderability and JESD 22-B102 whisker resistance Class 2. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - both terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient path | No cathode band; either terminal serves as anode or cathode depending on transient polarity - enables single-device protection of AC or floating lines. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge immunity up to 4 kV in 2 Ω source impedance systems without degradation. |
| Low clamping voltage (17.0 V @ 35.3 A) | Clamping ratio of 1.7× VWM minimizes stress on downstream 12 V-rated ICs and transceivers. |
| Glass-passivated junction | Ensures stable VBR and low leakage over temperature and lifetime; eliminates risk of passivation layer delamination during reflow. |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without moisture sensitivity concerns - no baking required prior to assembly. |
| AEC-Q101 qualified option available | HE3/HM3 variants meet automotive-grade reliability for engine control, ADAS sensor front-ends, and infotainment power rails. |
Applications
| Industrial Sensor Interface Protection | Automotive CAN Bus Line Protection |
|---|---|
|
Use Scenario: Protecting analog output lines (4–20 mA) and digital I/O (RS-485, IO-Link) from inductive switching transients in PLC modules and factory automation controllers. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and ground, absorbing ±1 kV EFT bursts and 40 A lightning-induced surges. Use Value: Prevents latch-up or permanent damage to precision ADCs and isolated RS-485 transceivers by limiting voltage excursion to ≤17.0 V during transients. |
Use Scenario: Safeguarding CAN_H and CAN_L differential pair against load dump, jump-start, and ISO 7637-2 pulse 1/2/5a in body control modules and gateway ECUs. IC Role / Device Role / Timing Role: Symmetrical TVS pair (one per line) referenced to chassis ground, conducting within <1 ps to clamp common-mode surges. Use Value: Maintains CAN signal integrity by holding differential swing within specification while diverting >95% of 100 A surge energy away from PHY. |
| Telecom DSL/ADSL Line Protection | Consumer Power Adapter Input Stage |
|
Use Scenario: Shielding ADSL line drivers and SLIC components from induced surges on twisted-pair telephone lines exposed to lightning coupling. IC Role / Device Role / Timing Role: Primary protection device mounted at line entry point, upstream of gas discharge tube (GDT) secondary stage. Use Value: Fast response (<1 ns) initiates clamping before GDT fires, reducing let-through voltage to <20 V and preventing SLIC overvoltage failure. |
Use Scenario: Suppressing line-side surges (IEC 61000-4-5) on AC-DC adapter primary rectifier outputs and DC bus inputs in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Secondary-level TVS placed after MOV but before bulk capacitor, handling residual fast-rising transients missed by slower MOVs. Use Value: Limits voltage overshoot to ≤17 V during 1.2/50 µs surges, protecting electrolytic capacitors and primary-side controllers from overvoltage stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA-M3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package; same thermal and surge ratings. | Required where halogen-free compliance is mandated (e.g., EU public infrastructure, medical devices). | Select when environmental compliance exceeds commercial RoHS - no layout or performance trade-offs. |
| SAC10CA | Lower 400 W PPPM, higher VC = 24.4 V at 16.4 A; same VWM and SMB package; not AEC-Q101 qualified. | Suitable only for lower-energy transients (e.g., IEC 61000-4-4 EFT), not full IEC 61000-4-5 Level 4. | Choose only if cost sensitivity outweighs surge margin; verify system-level testing with reduced PPPM. |
Compared with SMBJ10CA-E3/52, the M3 variant offers identical protection performance with halogen-free materials, while SAC10CA trades 33% lower pulse power and higher clamping for lower cost - making SMBJ10CA-E3/52 the preferred choice for robust industrial and automotive surge immunity.
Availability
SMBJ10CA-E3/52 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive CAN bus nodes, telecom line cards, and consumer power adapter designs requiring stable component supply and repeatable surge protection performance.
Supply support for SMBJ10CA-E3/52 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 reliability and application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping, long-term stability, and AEC-Q101 qualification matter.
FAQ
What is the maximum clamping voltage of SMBJ10CA-E3/52 under a 10/1000 µs surge?
The SMBJ10CA-E3/52 has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 35.3 A using the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuitry will not experience voltages exceeding 17.0 V during such transients - critical for safeguarding 12 V logic and analog components. The SMBJ10CA-E3/52 maintains this clamping performance across its full operating temperature range.
Is SMBJ10CA-E3/52 unidirectional or bidirectional?
SMBJ10CA-E3/52 is a bidirectional Transient Voltage Suppressor, indicated by the "CA" suffix per Vishay's naming convention. It provides symmetrical clamping for both positive and negative transients, with identical VBR, VC, and IPPM specifications in either polarity. Unlike unidirectional variants (e.g., SMBJ10A), the SMBJ10CA-E3/52 has no cathode marking and is used where AC-coupled or floating signal lines require protection without polarity constraints - such as telecom line pairs or differential bus interfaces.
Does SMBJ10CA-E3/52 meet automotive qualification standards?
The base SMBJ10CA-E3/52 is commercial-grade and RoHS-compliant but not AEC-Q101 qualified. However, Vishay offers the functionally identical SMBJ10CAHE3_B variant (with HE3 suffix), which is fully AEC-Q101 qualified for automotive applications. Engineers specifying SMBJ10CA-E3/52 for automotive use must select the HE3 or HM3 version - the E3 suffix alone does not imply automotive qualification. All SMBJ10CA-E3/52 units shipped by Aetrix Electronics are traceable to Vishay's commercial-grade production lot controls.
What is the thermal resistance of SMBJ10CA-E3/52, and how does it affect layout?
The SMBJ10CA-E3/52 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. This value directly impacts power derating: at 75 °C ambient, its usable power drops to ~2.5 W (50% of 5.0 W PD). To maintain reliability, PCB layout must replicate the recommended pad dimensions and avoid excessive trace length or isolation - undersized pads increase RθJA and risk thermal runaway during repetitive surges. The SMBJ10CA-E3/52 thermal model assumes no additional heatsinking.
Can SMBJ10CA-E3/52 replace SMBJ10A in an existing design?
SMBJ10CA-E3/52 cannot be a direct drop-in replacement for SMBJ10A because they differ fundamentally in polarity: SMBJ10A is unidirectional (cathode-marked), while SMBJ10CA-E3/52 is bidirectional (no marking). Swapping them without circuit review risks incorrect biasing - for example, placing SMBJ10CA-E3/52 across a DC rail may cause unintended conduction. If bidirectional protection is needed, confirm the application's signal topology supports symmetrical clamping; otherwise, retain SMBJ10A or use two unidirectional devices back-to-back. The SMBJ10CA-E3/52 shares identical package, VWM, and PPPM, but polarity behavior is not interchangeable.
SMBJ10CA-E3/52 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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 35.3A
- 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)
SMBJ10CA-E3/52 FAQ
1.How can I place an order for SMBJ10CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10CA-E3/52 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 SMBJ10CA-E3/52 reliable?
The price and inventory of SMBJ10CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ10CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10CA-E3/52?
SMBJ10CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10CA-E3/52 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 SMBJ10CA-E3/52?
For technical support, including SMBJ10CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10CA-E3/52 requirements.
6.How does Aetrix verify that SMBJ10CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ10CA-E3/52 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 SMBJ10CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ10CA-E3/52?
All SMBJ10CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10CA-E3/52, 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 SMBJ10CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ10CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10CA-E3/52 Tags
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