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Vishay General Semiconductor - Diodes Division SMCJ7.0CAHE3_A/H
- Part No.:
- SMCJ7.0CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ7.0CAHE3_A/H.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,424
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Product details
Overview
SMCJ7.0CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for clamping voltage transients on signal or power lines. It features a 7.0 V stand-off voltage (VWM), 12.0 V maximum clamping voltage (VC) at 125 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect automotive sensor interfaces and industrial I/O circuits against ESD and load dump.
For engineers reviewing the SMCJ7.0CAHE3_A/H datasheet, SMCJ7.0CAHE3_A/H pinout, SMCJ7.0CAHE3_A/H application, or SMCJ7.0CAHE3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 1500 W surge rating, low thermal resistance (RθJL = 15 °C/W), and compatibility with automated SMT assembly on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a silicon avalanche diode optimized for transient suppression in both polarities. Its breakdown voltage (VBR) ranges from 7.78 V to 8.60 V at 10 mA test current, with temperature coefficient of +0.065 %/°C - enabling stable clamping across automotive temperature range (–55 °C to +150 °C).
It delivers 125 A peak pulse current under 10/1000 μs waveform while maintaining VC ≤ 12.0 V, and exhibits <1 μA reverse leakage at VWM. The SMC package supports MSL level 1 handling and meets JESD201 class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 7.78 V / 8.60 V at IT = 10 mA - ensures reliable avalanche initiation within tight tolerance |
| VC @ IPPM | 12.0 V at 125 A - limits downstream voltage stress during 10/1000 μs transients |
| PPPM | 1500 W - sustains high-energy surges without failure per IEC 61000-4-5 Level 4 |
| TJ max | +150 °C - enables operation in under-hood automotive environments |
| RθJL | 15 °C/W - allows efficient heat transfer to PCB copper pads for sustained surge handling |
| AEC-Q101 | Qualified - certified for automotive electronics per stress test requirements |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Common terminal pair | Interchangeable terminals; conducts identically in either direction above VBR |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD robustness |
| Low clamping ratio (VC/VWM = 1.71) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio TVS devices |
| MSL Level 1 rating | Permits unlimited floor life and reflow soldering at 260 °C peak without preconditioning |
| Glass passivated junction | Ensures long-term stability and low leakage (<1 μA) under humid or high-bias conditions |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and ground to clamp transients before they reach MCU ADC or LIN transceiver input. Use Value: Limits voltage excursion to ≤12.0 V during 125 A surge, preserving signal integrity and preventing latch-up in AEC-Q100 qualified microcontrollers. |
Use Scenario: Safeguarding PLC digital input channels exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Primary transient suppressor mounted directly at connector entry point, shunting energy to chassis ground. Use Value: Absorbs 1500 W peak pulse energy without degradation, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity requirements. |
| USB Port ESD Protection | DC Power Rail Clamping |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines in automotive infotainment head units. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed after common-mode choke to suppress ±15 kV contact discharge per IEC 61000-4-2. Use Value: Sub-12 V clamping prevents damage to USB PHY transceivers while maintaining signal rise/fall time integrity. |
Use Scenario: 12 V board-level power rail protection against battery reversal and jump-start transients. IC Role / Device Role / Timing Role: Parallel-connected TVS across input capacitor to clamp overvoltage spikes before DC-DC converter input stage. Use Value: Withstands 200 A non-repetitive forward surge (IFSM), supporting robust protection in harsh vehicle electrical systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0CAHE3_A/H | Lower PPPM (400 W), smaller SMA package (DO-214AC), same VWM and VC | Suitable for lower-energy surges; limited to PCBs with tighter space constraints | Select when board area is constrained and surge threat level is ≤IEC 61000-4-5 Level 2 |
| SMCJ7.0CAHM3_A/H | Halogen-free variant; identical electrical specs and AEC-Q101 qualification | Required for RoHS-compliant, halogen-free manufacturing programs | Choose for automotive Tier 1 supply chains mandating halogen-free materials |
Compared with SMCJ7.0CAHE3_A/H, SMAJ7.0CAHE3_A/H trades surge capacity for footprint reduction, while SMCJ7.0CAHM3_A/H maintains full performance with halogen-free construction - enabling design flexibility across environmental and reliability requirements.
Availability
SMCJ7.0CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and USB interface protection requiring stable component supply and AEC-Q101 assurance.
Supply support for SMCJ7.0CAHE3_A/H 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices for high-reliability applications.
The SMCJ series targets automotive, industrial, and telecom systems needing high-power transient suppression in compact surface-mount packages - engineered for robustness under repetitive surge stress and extended temperature operation.
FAQ
What does the "CA" suffix indicate in SMCJ7.0CAHE3_A/H?
The "CA" suffix denotes a bidirectional configuration: SMCJ7.0CAHE3_A/H provides symmetrical clamping in both polarities, making it suitable for AC signal lines, differential buses, or ungrounded interfaces where polarity cannot be guaranteed. Unlike unidirectional variants (e.g., SMCJ7.0AHE3_A/H), it has no cathode marking and identical VBR/VWM in either direction.
Is SMCJ7.0CAHE3_A/H qualified for automotive use?
Yes, SMCJ7.0CAHE3_A/H is AEC-Q101 qualified - verified for automotive-grade reliability including high-temperature reverse bias, temperature cycling, and accelerated life testing. The "HE3" suffix explicitly indicates RoHS-compliant and AEC-Q101 qualified construction, meeting requirements for engine control, body electronics, and ADAS sensor modules.
What is the maximum clamping voltage for SMCJ7.0CAHE3_A/H under surge conditions?
The maximum clamping voltage (VC) for SMCJ7.0CAHE3_A/H is 12.0 V when subjected to its rated 125 A peak pulse current (IPPM) using a 10/1000 μs waveform. This value is measured at the device terminals under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during transient events.
How does the SMC (DO-214AB) package of SMCJ7.0CAHE3_A/H affect thermal performance?
The SMC package of SMCJ7.0CAHE3_A/H provides RθJL = 15 °C/W (junction-to-lead), enabling effective heat dissipation into PCB copper pads. When mounted on 8.0 mm × 8.0 mm copper areas per terminal, it sustains repeated 1500 W surges without exceeding TJ max = +150 °C - critical for automotive and industrial applications with frequent transient exposure.
Can SMCJ7.0CAHE3_A/H replace SMCJ7.0AHE3_A/H in a design?
No - SMCJ7.0CAHE3_A/H is bidirectional, while SMCJ7.0AHE3_A/H is unidirectional with a defined cathode. Substituting them requires verifying circuit polarity and transient directionality. In AC-coupled or floating systems, SMCJ7.0CAHE3_A/H is appropriate; in DC-biased lines with known polarity, SMCJ7.0AHE3_A/H offers tighter leakage and slightly lower VF, but SMCJ7.0CAHE3_A/H must not be assumed drop-in compatible.
SMCJ7.0CAHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 125A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
SMCJ7.0CAHE3_A/H FAQ
1.How can I place an order for SMCJ7.0CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ7.0CAHE3_A/H 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 SMCJ7.0CAHE3_A/H reliable?
The price and inventory of SMCJ7.0CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ7.0CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ7.0CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ7.0CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ7.0CAHE3_A/H?
SMCJ7.0CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ7.0CAHE3_A/H 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 SMCJ7.0CAHE3_A/H?
For technical support, including SMCJ7.0CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ7.0CAHE3_A/H requirements.
6.How does Aetrix verify that SMCJ7.0CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ7.0CAHE3_A/H 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 SMCJ7.0CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ7.0CAHE3_A/H?
All SMCJ7.0CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ7.0CAHE3_A/H, 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 SMCJ7.0CAHE3_A/H part is unused and in its original packaging.
Return procedure for SMCJ7.0CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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