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Vishay General Semiconductor - Diodes Division SMBJ7.0CAHE3_A/I
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- Part No.:
- SMBJ7.0CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ7.0CAHE3_A/I.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,620
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Product details
Overview
SMBJ7.0CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 7.0 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 12.0 V maximum clamping voltage at 50.0 A IPPM, and operates across -55 °C to +150 °C junction temperature range - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMBJ7.0CAHE3_A/I datasheet, SMBJ7.0CAHE3_A/I pinout, SMBJ7.0CAHE3_A/I application, or SMBJ7.0CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, 12.0 V VC at 50 A surge, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
This device functions as a voltage-clamping protector using an avalanche breakdown mechanism. Its bidirectional symmetry enables suppression of both positive and negative transients without polarity sensitivity, and its glass-passivated junction ensures stable breakdown characteristics under repetitive surge stress.
Designed for low-inductance PCB mounting on 5.0 mm × 5.0 mm copper pads, it delivers fast response (<1 ns) and low incremental surge resistance. The SMBJ7.0CAHE3_A/I meets MSL Level 1 per J-STD-020 and supports lead-free reflow up to 260 °C peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 7.0 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below circuit operating voltage. |
| VBR (Breakdown Voltage) | 7.78 V min / 8.60 V max at 10 mA - Ensures reliable avalanche initiation within tight tolerance for consistent transient suppression. |
| VC (Clamping Voltage) | 12.0 V at 50.0 A IPPM - Limits peak voltage seen by protected IC during 10/1000 µs surge, critical for MOSFET/gate driver survival. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 µs waveform) - Supports high-energy surge events common in automotive load-dump or inductive switching scenarios. |
| ID (Reverse Leakage) | 800 µA max at VWM - Low leakage preserves signal integrity and minimizes standby power loss in battery-powered systems. |
| TJ max. | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures without derating. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per AEC specification. |
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 (negative half-cycle) | One terminal of symmetrical PN junction; conducts during negative surges to clamp voltage relative to reference plane. |
| Cathode | Transient current entry (positive half-cycle) | Second terminal of symmetrical junction; conducts during positive surges - functionally identical to Anode due to bidirectional design. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints. |
| 600 W peak pulse power | Withstands high-energy transients from inductive load switching (e.g., solenoid drivers) without degradation. |
| AEC-Q101 qualification | Validates long-term reliability in automotive applications including engine control modules and ADAS sensor interfaces. |
| MSL Level 1 rating | Allows unlimited floor life and compatibility with standard SMT reflow profiles up to 260 °C peak. |
| Glass passivated junction | Improves stability of breakdown voltage over temperature and lifetime versus epoxy-passivated alternatives. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from ISO 7637-2 pulses and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Voltage clamping element placed directly at connector interface to limit transient energy entering signal conditioning circuitry. Use Value: Clamps 12.0 V at 50 A surge, ensuring downstream op-amps and ADCs remain within absolute maximum ratings during load dump events. |
Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to field wiring transients in factory automation. IC Role / Device Role / Timing Role: Primary surge shunt device mounted adjacent to terminal block to divert induced lightning or switching surges away from microcontroller GPIOs. Use Value: 600 W peak power rating absorbs repetitive 10/1000 µs surges common in motor control cabinets without parameter drift. |
| Consumer USB Port Protection | Telecom Line Interface Protection |
|
Use Scenario: Shielding USB 2.0 data lines (D+/D−) and VBUS against human-body-model ESD and cable discharge events in portable devices. IC Role / Device Role / Timing Role: Bidirectional TVS placed between connector and USB transceiver IC to clamp ±15 kV contact ESD per IEC 61000-4-2. Use Value: 12.0 V clamping voltage prevents latch-up in USB PHY while maintaining signal integrity due to low capacitance (typ. 300 pF at 0 V). |
Use Scenario: Protecting Ethernet PHY front-end and telephone line interface circuits from lightning-induced surges in VoIP gateways and DSL modems. IC Role / Device Role / Timing Role: Secondary-level protector located after gas discharge tube (GDT), limiting let-through voltage to PHY ICs. Use Value: Fast <1 ns response time captures residual transients missed by primary GDT, reducing risk of PHY damage during multi-stage surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0CA-E3/52 | Commercial-grade (non-AEC-Q101), same electrical specs and SMB package. | Lacks automotive qualification; suitable for consumer/industrial use only. | Select when AEC-Q101 compliance is not required and cost optimization is prioritized. |
| SAC7.0 | Same VWM (7.0 V) and VC (12.0 V), but in smaller SOD-123 package (lower PPPM = 400 W). | Lower surge handling limits suitability to low-energy signal lines only. | Choose for space-constrained designs where 400 W peak power suffices and footprint reduction is critical. |
Compared with SMBJ7.0CAHE3_A/I, SMBJ7.0CA-E3/52 offers identical protection performance without automotive qualification, while SAC7.0 trades surge capacity for compact size - making the HE3 variant optimal for AEC-Q101–mandated automotive signal protection where full 600 W capability is essential.
Availability
SMBJ7.0CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line interface protection requiring stable component supply and AEC-Q101–certified reliability.
Supply support for SMBJ7.0CAHE3_A/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 high-reliability and automotive-grade solutions.
The SMBJ series was developed specifically for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom applications demanding AEC-Q101 qualification and high surge immunity.
FAQ
What is the clamping voltage of SMBJ7.0CAHE3_A/I at its rated peak pulse current?
The SMBJ7.0CAHE3_A/I has a maximum clamping voltage (VC) of 12.0 V at 50.0 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and ensures downstream ICs remain within safe operating voltage limits during surge events. The SMBJ7.0CAHE3_A/I maintains this clamping performance across its full operating temperature range.
Is SMBJ7.0CAHE3_A/I qualified for automotive applications?
Yes, SMBJ7.0CAHE3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in datasheet 88392 (Revision 09-Jan-2024). This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD robustness - validating its use in engine control units, body electronics, and ADAS sensor modules.
What is the package type and mounting configuration of SMBJ7.0CAHE3_A/I?
SMBJ7.0CAHE3_A/I uses the SMB (DO-214AA) surface-mount package with dimensions 4.57 mm × 3.94 mm × 2.20 mm. It is bidirectional and unmarked - no cathode band - requiring symmetric PCB layout. Mounting follows Vishay's recommended 5.0 mm × 5.0 mm copper pad per terminal to achieve specified thermal and surge performance for SMBJ7.0CAHE3_A/I.
How does SMBJ7.0CAHE3_A/I differ from unidirectional variants like SMBJ7.0AHE3_A/I?
SMBJ7.0CAHE3_A/I is bidirectional, meaning it clamps transients of either polarity symmetrically, whereas SMBJ7.0AHE3_A/I is unidirectional with a marked cathode and only clamps positive surges relative to cathode. The "CA" suffix explicitly denotes bidirectional functionality, enabling use on AC-coupled or floating lines where polarity is undefined - a key distinction in SMBJ7.0CAHE3_A/I's system role.
What is the maximum reverse leakage current for SMBJ7.0CAHE3_A/I at its stand-off voltage?
The SMBJ7.0CAHE3_A/I exhibits a maximum reverse leakage current (ID) of 800 µA at its 7.0 V stand-off voltage (VWM), measured at 25 °C. This low leakage supports energy-sensitive applications such as battery-backed sensors and low-power IoT nodes, where excessive quiescent current could impact runtime - a verified parameter per Table 1 in Vishay document 88392 for SMBJ7.0CAHE3_A/I.
SMBJ7.0CAHE3_A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 50A
- 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)
SMBJ7.0CAHE3_A/I FAQ
1.How can I place an order for SMBJ7.0CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ7.0CAHE3_A/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 SMBJ7.0CAHE3_A/I reliable?
The price and inventory of SMBJ7.0CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ7.0CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ7.0CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ7.0CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ7.0CAHE3_A/I?
SMBJ7.0CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ7.0CAHE3_A/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 SMBJ7.0CAHE3_A/I?
For technical support, including SMBJ7.0CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ7.0CAHE3_A/I requirements.
6.How does Aetrix verify that SMBJ7.0CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ7.0CAHE3_A/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 SMBJ7.0CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ7.0CAHE3_A/I?
All SMBJ7.0CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ7.0CAHE3_A/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 SMBJ7.0CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMBJ7.0CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ7.0CAHE3_A/I Tags
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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