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Vishay General Semiconductor - Diodes Division SMCG7.0CAHE3/9AT
- Part No.:
- SMCG7.0CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG7.0CAHE3/9AT.pdf
- Description:
- TVS DIODE 7VWM 12VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,238
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Product details
Overview
SMCG7.0CAHE3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for high-energy surge protection on signal and 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 dissipation (PPPM) with a 10/1000 µs waveform - enabling robust protection of automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the SMCG7.0CAHE3/9AT datasheet, SMCG7.0CAHE3/9AT pinout, SMCG7.0CAHE3/9AT application, or SMCG7.0CAHE3/9AT equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped crowbar during transients, leveraging an avalanche breakdown mechanism with glass-passivated junction. Its bidirectional structure ensures symmetrical clamping in both polarities, eliminating polarity marking requirements and simplifying layout in AC-coupled or differential bus lines like CAN FD or LIN.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation up to +150 °C junction temperature. The 10/1000 µs waveform rating reflects standardized lightning-surge immunity testing per ANSI/IEEE C62.35, with derating applied above 25 °C ambient per Figure 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system operating margin. |
| VBR (min/max) | 7.78 V / 8.60 V at 10 mA - Breakdown voltage range defining turn-on threshold consistency across production lots. |
| VC @ IPPM | 12.0 V at 125 A - Clamping voltage under full-rated surge; determines maximum stress imposed on protected ICs. |
| PPPM | 1500 W - Peak transient energy handling capacity using standard 10/1000 µs waveform; defines surge immunity level. |
| ID @ VWM | 200 µA max - Reverse leakage at stand-off voltage; critical for low-power sensor biasing and battery-backed circuits. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive and industrial environments. |
| MSL Level | Level 1 (per J-STD-020) - No floor life limitation; supports unlimited exposure prior to reflow soldering. |
Pinout & Package
Package: SMCG (DO-215AB), surface-mount gull-wing lead frame with matte tin-plated terminals, compliant with J-STD-002 and JESD 22-B102 solderability standards. Bidirectional construction means no polarity marking; both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals serve as interchangeable surge current entry/exit points; no cathode band marking required for bidirectional types. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Glass-passivated junction | Enhances long-term stability and reduces parameter drift under thermal and humidity stress vs. epoxy-passivated alternatives. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a), improving protection fidelity. |
| MSL Level 1 rating | Eliminates bake-out requirements and floor-life tracking, reducing manufacturing overhead in high-volume SMT lines. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in engine control modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector interface to shunt surge energy before it reaches sensitive analog front-ends. Use Value: Maintains signal integrity below 12.0 V clamping threshold while surviving repeated 1500 W surges - meeting ISO 16750-2 requirements. | Use Scenario: Safeguarding PLC digital input channels against field-wiring induced surges in factory automation systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input lines, coordinated with upstream fusing and filtering. Use Value: Enables compliance with IEC 61000-4-5 Level 3 (2 kV line-earth) without requiring additional series impedance or active circuitry. |
| Telecom Line Interface | Consumer USB Port Protection |
Use Scenario: Transient suppression on RS-485/RS-422 differential pairs in base station backhaul equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Common-mode TVS pair mounted symmetrically across differential lines to maintain signal balance during clamping. Use Value: Symmetrical bidirectional response preserves differential signaling integrity while limiting common-mode excursion to ≤12.0 V. | Use Scenario: Secondary-level surge protection on USB 2.0 VBUS and D+/D− lines in smart home hubs subjected to ESD and hot-plug transients. IC Role / Device Role / Timing Role: Fast-response clamping device placed after primary ESD array to handle higher-energy events beyond ±15 kV HBM. Use Value: 125 A IPPM capability absorbs multi-pulse surge events that exceed typical polymer-based TVS limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0CA | Same VWM (7.0 V) and VC (12.0 V), but lower PPPM (400 W); SMA (DO-214AC) package with higher RθJA (110 °C/W). | Not suitable for 1500 W surge environments; limited to lower-energy transients in consumer electronics. | Select SMAJ7.0CA only when board space is constrained and surge threat level is ≤400 W. |
| SMCJ7.0CA | Same VWM (7.0 V) and PPPM (1500 W), but larger SMC (DO-214AB) package; slightly higher VC (12.3 V) and lower thermal resistance (RθJA = 50 °C/W). | Better thermal performance in high-ambient environments; requires larger PCB footprint than SMCG. | Choose SMCJ7.0CA when thermal management is prioritized over miniaturization, especially above 85 °C ambient. |
Compared with SMAJ7.0CA and SMCJ7.0CA, SMCG7.0CAHE3/9AT delivers identical clamping performance in a smaller DO-215AB footprint with AEC-Q101 qualification - making it optimal for space-constrained automotive and industrial designs requiring validated reliability.
Availability
SMCG7.0CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface, and telecom line interface applications requiring stable component supply and AEC-Q101-compliant surge immunity.
Supply support for SMCG7.0CAHE3/9AT 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCG series is engineered for high-power transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where compact size, AEC-Q101 validation, and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of SMCG7.0CAHE3/9AT under full-rated surge conditions?
The SMCG7.0CAHE3/9AT exhibits a maximum clamping voltage (VC) of 12.0 V when subjected to its rated peak pulse current (IPPM) of 125 A using the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 09-Jan-2024, page 2, electrical characteristics table for SMCG7.0CA.
Is SMCG7.0CAHE3/9AT suitable for automotive applications?
Yes, SMCG7.0CAHE3/9AT is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet section "Mechanical Data" and confirmed in the ordering information footnote (1). Its qualification covers temperature cycling, high-temperature reverse bias, and ESD testing - making it appropriate for under-hood and body-control module deployments where SMCG7.0CAHE3/9AT provides certified surge resilience.
Does SMCG7.0CAHE3/9AT have polarity markings on the package?
No, SMCG7.0CAHE3/9AT does not feature polarity markings because it is a bidirectional TVS diode. As noted in the Vishay datasheet "Mechanical Data" section, "no marking on bidirectional types." Both terminals are electrically symmetrical, allowing flexible PCB layout without orientation constraints - a key advantage over unidirectional variants like SMCG7.0A.
What is the moisture sensitivity level (MSL) rating for SMCG7.0CAHE3/9AT?
SMCG7.0CAHE3/9AT meets MSL Level 1 per J-STD-020, as specified in the "Features" section of the Vishay datasheet. This means the device has unlimited floor life and may be stored indefinitely before reflow soldering without baking - simplifying inventory handling and SMT line integration for SMCG7.0CAHE3/9AT in high-volume manufacturing.
How does the SMCG (DO-215AB) package compare thermally to SMA (DO-214AC) and SMC (DO-214AB)?
The SMCG (DO-215AB) package used by SMCG7.0CAHE3/9AT offers RθJA = 75 °C/W, which is lower than SMA's 110 °C/W but higher than SMC's 50 °C/W. This positions SMCG7.0CAHE3/9AT between the two: better thermal performance than SMA for same-power dissipation, yet more compact than SMC - ideal when balancing PCB area and thermal margin in dense automotive ECUs.
SMCG7.0CAHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AB, SMC Gull Wing
- 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 (SMCG)
SMCG7.0CAHE3/9AT FAQ
1.How can I place an order for SMCG7.0CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG7.0CAHE3/9AT 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 SMCG7.0CAHE3/9AT reliable?
The price and inventory of SMCG7.0CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG7.0CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG7.0CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG7.0CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG7.0CAHE3/9AT?
SMCG7.0CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG7.0CAHE3/9AT 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 SMCG7.0CAHE3/9AT?
For technical support, including SMCG7.0CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG7.0CAHE3/9AT requirements.
6.How does Aetrix verify that SMCG7.0CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG7.0CAHE3/9AT 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 SMCG7.0CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG7.0CAHE3/9AT?
All SMCG7.0CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG7.0CAHE3/9AT, 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 SMCG7.0CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG7.0CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG7.0CAHE3/9AT Tags
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