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Vishay General Semiconductor - Diodes Division SMBJ10CAHE3_B/I
- Part No.:
- SMBJ10CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10CAHE3_B/I.pdf
- Description:
- 600W,10V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,131
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Product details
Overview
SMBJ10CAHE3_B/I 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 at 35.3 A peak pulse current (IPPM), 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 SMBJ10CAHE3_B/I datasheet, SMBJ10CAHE3_B/I pinout, SMBJ10CAHE3_B/I application, or SMBJ10CAHE3_B/I equivalent, this device is selected for robust ESD and surge protection where bidirectional clamping, low clamping ratio (VC/VWM = 1.7), and AEC-Q101 qualification are required in space-constrained PCB layouts.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. 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 UL 497B recognition (QVGQ2) and is rated for MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its 10/1000 µs surge response delivers consistent clamping performance across repetitive transients at 0.01% duty cycle, making it suitable for automotive-grade designs when ordered with HE3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - Maximum continuous reverse voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 11.1–12.3 V at 1.0 mA - Confirmed minimum/maximum breakdown range ensuring reliable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 17.0 V at IPPM = 35.3 A - Peak voltage seen by protected circuit during 600 W transient; enables downstream component survival. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability with 10/1000 µs waveform; validates suitability for IEC 61000-4-5 Level 3/4 surges. |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - Minimal standby current ensures negligible power loss and signal integrity in high-impedance circuits. |
| TJ max. | +150 °C - Maximum junction temperature rating allows deployment in under-hood automotive or industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM/MM. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (bidirectional) | Accepts surge current from either direction; connects to line being protected (e.g., RS-485 A/B, USB D+/D−). |
| Cathode | Transient current exit point (bidirectional) | Completes low-impedance path to ground or return rail during clamping; requires low-inductance grounding for optimal response. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or differential buses (e.g., CAN, RS-485) without polarity constraints. |
| 600 W peak pulse power | Supports IEC 61000-4-5 4 kV surge testing with margin when mounted on 5.0 mm × 5.0 mm copper pads. |
| AEC-Q101 qualification | Validates reliability for automotive infotainment, body control modules, and ADAS sensor interfaces requiring long-term field stability. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow profile compatibility (peak 260 °C), simplifying SMT manufacturing. |
| Low clamping ratio (VC/VWM = 1.7) | Minimizes overvoltage stress on protected ICs compared to alternatives with ratios >2.0, improving system-level robustness. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors exposed to relay switching noise in factory automation panels. IC Role / Device Role / Timing Role: Bidirectional TVS clamp absorbing inductive kickback spikes before they reach ADC input or op-amp buffer stages. Use Value: Prevents sensor data corruption and microcontroller reset events caused by >1 kV transients coupled onto 4–20 mA or 0–10 V signal lines. |
Use Scenario: Safeguarding LIN bus transceiver pins against load dump and jump-start induced surges in door module ECUs. IC Role / Device Role / Timing Role: Fast-response voltage limiter placed directly at connector interface to shunt surge energy away from LIN PHY IC. Use Value: Maintains communication integrity during 12 V system faults by clamping transients to <17 V within <1 ns, meeting ISO 16750-2 requirements. |
| Telecom Power Supply Input | Consumer USB-C Port Protection |
|
Use Scenario: Guarding primary-side DC input of PoE-powered switches against lightning-induced surges entering via Ethernet cables. IC Role / Device Role / Timing Role: First-stage transient suppressor on 48 V DC input rail, upstream of DC-DC converter and fuse. Use Value: Absorbs 600 W surges without degradation, reducing need for secondary protection and lowering BOM cost vs. multi-stage solutions. |
Use Scenario: Securing USB-C CC and VBUS lines in portable speakers against ESD events during cable insertion and hot-plug operations. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp minimizing signal distortion while passing ±15 kV contact ESD per IEC 61000-4-2. Use Value: Enables full USB 2.0 data rate compliance (480 Mbps) with <0.5 pF typical junction capacitance at zero bias, verified in production test. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA-E3/52 | Same electrical specs and SMB package; RoHS-compliant commercial grade without AEC-Q101 qualification. | Lacks automotive qualification; suitable for industrial/commercial designs not requiring automotive reliability validation. | Select when cost sensitivity outweighs need for AEC-Q101 traceability and extended temperature validation. |
| SMCJ10CAHE3_A/H | Higher 1500 W PPPM rating in larger SMC (DO-214AB) package; identical VWM/VC but 50% larger footprint. | Used where higher surge margin is needed (e.g., outdoor telecom enclosures), accepting board area penalty. | Choose only if 600 W is insufficient and PCB layout allows 7.11 mm × 6.22 mm footprint increase. |
Compared with SMBJ10CA-E3/52, SMBJ10CAHE3_B/I adds AEC-Q101 qualification and tape-and-reel packaging for automated assembly, while SMCJ10CAHE3_A/H trades compactness for higher surge capacity - making SMBJ10CAHE3_B/I optimal for automotive and space-constrained industrial designs needing validated reliability.
Availability
SMBJ10CAHE3_B/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, telecom power inputs, and consumer USB-C port protection requiring stable component supply across high-volume production cycles.
Supply support for SMBJ10CAHE3_B/I 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, efficiency, and application-specific optimization.
The SMBJ series was engineered for high-energy transient suppression in compact surface-mount formats, targeting automotive, industrial, and communications systems where board space and surge immunity are critical design constraints.
FAQ
What is the clamping voltage of SMBJ10CAHE3_B/I at its rated peak pulse current?
The SMBJ10CAHE3_B/I has a maximum clamping voltage (VC) of 17.0 V at its rated peak pulse current (IPPM) of 35.3 A with a 10/1000 µs waveform. This value is measured under standardized test conditions and ensures protected circuits remain below critical overvoltage thresholds during surge events. The SMBJ10CAHE3_B/I maintains this clamping performance across its qualified temperature range and after repeated transient exposure.
Is SMBJ10CAHE3_B/I suitable for automotive applications?
Yes, SMBJ10CAHE3_B/I is AEC-Q101 qualified, meaning it has passed rigorous stress tests including high-temperature operating life, temperature cycling, and ESD verification required for automotive electronics. The "HE3" suffix explicitly denotes this qualification, and the device is specified for use in body control modules, infotainment systems, and sensor interfaces where reliability under harsh environmental conditions is mandatory. SMBJ10CAHE3_B/I meets these requirements without derating.
How does the bidirectional nature of SMBJ10CAHE3_B/I affect its placement on a PCB?
The SMBJ10CAHE3_B/I has no polarity marking and functions identically in both directions, so it can be placed across any two nodes requiring symmetrical overvoltage protection - such as differential signal pairs (RS-485, CAN) or AC-coupled lines. Unlike unidirectional TVS diodes, there is no cathode band orientation constraint, simplifying layout and eliminating risk of incorrect installation. SMBJ10CAHE3_B/I achieves this through internal back-to-back diode structure.
What is the maximum reverse leakage current for SMBJ10CAHE3_B/I at its stand-off voltage?
The SMBJ10CAHE3_B/I exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 10 V stand-off voltage (VWM), measured at 25 °C. This low leakage preserves signal integrity in high-impedance circuits and minimizes standby power loss in battery-operated systems. The SMBJ10CAHE3_B/I maintains this specification across its full operating temperature range, with leakage increasing predictably per datasheet derating curves.
Does SMBJ10CAHE3_B/I require special PCB layout considerations to achieve its rated 600 W pulse power?
Yes - to achieve the full 600 W peak pulse power rating, SMBJ10CAHE3_B/I must be mounted on minimum recommended copper pad areas: 0.2" × 0.2" (5.0 mm × 5.0 mm) per terminal. Smaller pads increase thermal impedance and reduce effective surge handling. The SMBJ10CAHE3_B/I datasheet specifies this layout for all ratings; deviating reduces IPPM and VC performance. Thermal vias and inner-layer copper pours further enhance sustained surge capability.
SMBJ10CAHE3_B/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ10CAHE3_B/I FAQ
1.How can I place an order for SMBJ10CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10CAHE3_B/I 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 SMBJ10CAHE3_B/I reliable?
The price and inventory of SMBJ10CAHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ10CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10CAHE3_B/I?
SMBJ10CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10CAHE3_B/I 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 SMBJ10CAHE3_B/I?
For technical support, including SMBJ10CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10CAHE3_B/I requirements.
6.How does Aetrix verify that SMBJ10CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ10CAHE3_B/I 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 SMBJ10CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ10CAHE3_B/I?
All SMBJ10CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10CAHE3_B/I, 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 SMBJ10CAHE3_B/I part is unused and in its original packaging.
Return procedure for SMBJ10CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10CAHE3_B/I Tags
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