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Vishay General Semiconductor - Diodes Division SMCG7.0CAHE3/57T
- Part No.:
- SMCG7.0CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG7.0CAHE3/57T.pdf
- Description:
- TVS DIODE 7VWM 12VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,755
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Product details
Overview
SMCG7.0CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection on signal and power lines. It features a 7.0 V stand-off voltage (VWM), 7.78–8.60 V breakdown voltage (VBR) at 10 mA, 1500 W peak pulse power (PPPM), clamping voltage of 12.0 V at 125 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCG7.0CAHE3/57T datasheet, SMCG7.0CAHE3/57T pinout, SMCG7.0CAHE3/57T application, or SMCG7.0CAHE3/57T equivalent, key selection criteria include bidirectional clamping capability, 12.0 V VC under 10/1000 µs surge, DO-215AB thermal performance (RθJA = 75 °C/W), AEC-Q101 compliance, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped shunt protector, responding to transients within picoseconds via avalanche breakdown. Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating polarity concerns in AC-coupled or differential signal paths.
Designed for high-energy surge immunity, it sustains 1500 W peak pulse power per the 10/1000 µs waveform while maintaining low incremental surge resistance and fast response-critical for safeguarding sensitive MOSFET gates, sensor interfaces, and CAN/LIN bus nodes against load dump and ESD-induced spikes.
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 10 mA - Ensures reliable turn-on margin above VWM with tight process control |
| VC @ IPPM | 12.0 V at 125 A - Clamping voltage limits downstream IC stress during 10/1000 µs surges |
| PPPM | 1500 W - Supports high-energy transients like ISO 7637-2 Pulse 5a without failure |
| ID @ VWM | 1000 µA max - Low leakage preserves signal integrity in high-impedance sensor circuits |
| TJ max | +150 °C - Enables operation in under-hood automotive environments |
| Package | SMCG (DO-215AB) - Surface-mount outline with 75 °C/W junction-to-ambient thermal resistance |
Pinout & Package
SMCG7.0CAHE3/57T uses the SMCG (DO-215AB) surface-mount package: a dual-leaded, gull-wing configuration with no polarity marking (bidirectional). Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Conducts surge current into device during positive voltage excursions; symmetric with cathode |
| Cathode | Transient current entry (negative half-cycle) | Conducts surge current into device during negative voltage excursions; symmetric with anode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Enhances long-term stability and moisture resistance vs. epoxy-passivated alternatives |
| MSL Level 1 (260 °C peak) | Enables standard reflow without pre-baking; compatible with high-volume SMT lines |
| Low profile DO-215AB | 0.245" × 0.125" footprint saves PCB area vs. SMA/SMB while supporting 1500 W surge handling |
| Bidirectional symmetry | Eliminates orientation constraints in AC, differential, or floating signal line protection |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and body control module inputs from load dump and jump-start transients. IC Role / Device Role: Shunt TVS placed across VCC and GND near point-of-entry. Use Value: Clamps 12 V system surges to ≤12.0 V, preventing damage to 16 V-rated transceivers and preserving functional safety integrity. | Use Scenario: Safeguarding 4–20 mA current loop sensors in factory automation against induced lightning surges. IC Role / Device Role: Bidirectional clamp across loop terminals to divert common-mode transients. Use Value: Symmetric clamping maintains loop accuracy during ±1 kV EFT bursts without polarity-dependent offset shifts. |
| Automotive Lighting Driver Protection | Consumer USB Port ESD Suppression |
Use Scenario: Shielding LED driver ICs in headlamp modules from inductive switching spikes during PWM dimming. IC Role / Device Role: Localized TVS across driver output and ground to absorb flyback energy. Use Value: 1500 W PPPM rating handles repetitive 100 A surges from 12 V solenoid switching without degradation. | Use Scenario: Adding secondary-level ESD protection on USB 2.0 D+/D− lines behind primary polymer TVS. IC Role / Device Role: Fast-response bidirectional clamp limiting voltage to <12 V during IEC 61000-4-2 ±8 kV contact discharge. Use Value: Sub-12 V clamping prevents latch-up in USB PHYs while maintaining signal rise time due to low junction capacitance. |
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/VBR/VC specs but in SMA (DO-214AC) package; RθJA = 90 °C/W vs. 75 °C/W | Lower power density; less suitable for sustained surge duty cycles in confined layouts | Prefer SMCG7.0CAHE3/57T where thermal management or board space is constrained |
| 1.5KE7.0CA | Through-hole TO-218 package; higher PPPM (1500 W same), but slower response and larger footprint | Not suitable for automated SMT; incompatible with high-density automotive PCBs | Choose SMCG7.0CAHE3/57T for surface-mount production and AEC-Q101 compliance |
Compared with SMAJ7.0CA and 1.5KE7.0CA, SMCG7.0CAHE3/57T delivers superior thermal performance in a smaller AEC-Q101-qualified SMT package-enabling higher surge reliability in space-constrained automotive and industrial designs without layout redesign.
Availability
SMCG7.0CAHE3/57T is available at Aetrix Electronics and suitable for automotive lighting systems, industrial sensor nodes, and USB interface protection requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for SMCG7.0CAHE3/57T 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 and automotive qualification.
The SMCG series was developed specifically for high-power, AEC-Q101-compliant transient suppression in compact SMT formats-targeting next-generation automotive ECUs, ADAS sensors, and ruggedized industrial controls.
FAQ
What is the clamping voltage of SMCG7.0CAHE3/57T under standard surge conditions?
The SMCG7.0CAHE3/57T has a maximum clamping voltage (VC) of 12.0 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 125 A. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 09-Jan-2024. The consistent 12.0 V VC ensures predictable protection margins for 12 V rail components interfacing with SMCG7.0CAHE3/57T.
Is SMCG7.0CAHE3/57T suitable for automotive applications?
Yes, SMCG7.0CAHE3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments up to +150 °C junction temperature. Its DO-215AB package meets MSL Level 1 reflow requirements, and its bidirectional clamping supports LIN, CAN, and power-line protection per ISO 7637-2. Vishay documents SMCG7.0CAHE3/57T for use in automotive lighting, body electronics, and sensor units.
How does the SMCG7.0CAHE3/57T differ from unidirectional variants like SMCG7.0AHE3/57T?
SMCG7.0CAHE3/57T is bidirectional with symmetrical clamping in both polarities and no cathode band marking, whereas SMCG7.0AHE3/57T is unidirectional, marked with a cathode band and rated only for forward surge (IFSM = 200 A). The "CA" suffix denotes bidirectional functionality, making SMCG7.0CAHE3/57T appropriate for AC-coupled or floating signal lines where polarity reversal may occur.
What is the thermal resistance of SMCG7.0CAHE3/57T, and how does it affect layout?
SMCG7.0CAHE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's datasheet; reducing pad size increases thermal impedance and risks exceeding TJ max = +150 °C during repeated surges. Layout must maintain full copper pour under both leads.
Does SMCG7.0CAHE3/57T require special handling or storage conditions?
No special handling beyond standard RoHS-compliant SMT component protocols is required. SMCG7.0CAHE3/57T is MSL Level 1 (moisture sensitivity level 1), meaning it can be stored indefinitely at ambient conditions and withstand peak reflow temperatures up to 260 °C without baking. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 for solderability, and it passes JESD 201 Class 2 whisker testing.
SMCG7.0CAHE3/57T 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)
SMCG7.0CAHE3/57T FAQ
1.How can I place an order for SMCG7.0CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG7.0CAHE3/57T 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 SMCG7.0CAHE3/57T reliable?
The price and inventory of SMCG7.0CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG7.0CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG7.0CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG7.0CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG7.0CAHE3/57T?
SMCG7.0CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG7.0CAHE3/57T 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 SMCG7.0CAHE3/57T?
For technical support, including SMCG7.0CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG7.0CAHE3/57T requirements.
6.How does Aetrix verify that SMCG7.0CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG7.0CAHE3/57T 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 SMCG7.0CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG7.0CAHE3/57T?
All SMCG7.0CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG7.0CAHE3/57T, 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 SMCG7.0CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCG7.0CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG7.0CAHE3/57T Tags
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