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Vishay General Semiconductor - Diodes Division SMCG70AHE3/57T
- Part No.:
- SMCG70AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG70AHE3/57T.pdf
- Description:
- TVS DIODE 70VWM 113VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,829
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Product details
Overview
SMCG70AHE3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 70 V stand-off voltage (VWM), 77.8–86.0 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), 13.3 A maximum clamping current (IPPM), and 113 V clamping voltage (VC) - deployed in automotive power line and industrial sensor interface protection.
For engineers reviewing the SMCG70AHE3/57T datasheet, SMCG70AHE3/57T pinout, SMCG70AHE3/57T application, or SMCG70AHE3/57T equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, DO-215AB mechanical data, thermal resistance (RθJA = 75 °C/W), and real-world protection use cases - all aligned to Vishay's 88457 document revision 09-Jan-2024.
Technical Context
This TVS diode operates as a unidirectional clamping device with glass-passivated junction and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced transients. Its 1500 W PPPM rating is validated on 8.0 mm × 8.0 mm copper pads per terminal, and it sustains 200 A non-repetitive forward surge (IFSM, 8.3 ms half-sine).
Rated for -55 °C to +150 °C junction temperature, it meets MSL Level 1 (J-STD-020, 260 °C peak reflow), and its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards. The HE3 suffix confirms RoHS compliance and AEC-Q101 qualification for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 70 V - maximum continuous reverse operating voltage before clamping begins; defines safe signal line bias margin. |
| VBR (min/max) | 77.8 V / 86.0 V at IT = 1 mA - ensures predictable turn-on threshold across production lot and temperature. |
| VC @ IPPM | 113 V at 13.3 A (10/1000 µs) - limits downstream IC voltage stress during surge events. |
| PPPM | 1500 W - supports high-energy transient suppression without failure under standardized waveform. |
| RθJA | 75 °C/W - enables thermal design on standard PCB copper pads without forced cooling. |
| TJ max | +150 °C - allows operation in under-hood automotive environments and industrial enclosures. |
| AEC-Q101 | Qualified - certified for automotive electronics per stress test requirements (HTOL, TC, HTRB, etc.). |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, low-profile gull-wing leaded case with cathode band marking; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward conduction mode | Connected to protected circuit ground or low-side return path during clamping. |
| Cathode | Current exit point; marked by band on package | Connected to protected line (e.g., 12 V rail, CAN_H); defines polarity-sensitive clamping direction. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures stable VBR and low leakage (<1 µA at VWM) across temperature and lifetime. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body control, and ADAS modules requiring zero field failures. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a). |
| MSL Level 1 rating | Permits standard SMT reflow without baking or special handling - reduces manufacturing cost and risk. |
| 1500 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV line-earth) on properly laid out PCB traces. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between power rail and ground, triggered within nanoseconds of overvoltage onset. Use Value: Limits peak rail voltage to ≤113 V, preventing damage to MCU power supplies and analog front-ends rated for 16 V absolute max. |
Use Scenario: Safeguarding 4–20 mA current loop transmitters and RS-485 nodes in factory automation systems. IC Role / Device Role / Timing Role: Standoff-mode protector on signal lines, conducting only during >77.8 V transients while remaining high-impedance otherwise. Use Value: Maintains <1 µA leakage at 70 V, avoiding interference with precision current-loop accuracy or receiver sensitivity. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Protection |
Use Scenario: Secondary-side surge suppression in USB-C PD adapters and AC/DC wall adapters exposed to mains-borne noise. IC Role / Device Role / Timing Role: Fast-clamping element parallel to output capacitor, shunting energy before it reaches downstream regulators. Use Value: Withstands 1500 W pulses without degradation, supporting EN 61000-4-5 compliance up to 2 kV line-earth. |
Use Scenario: Overvoltage hardening of -48 V DC feeder lines in base station remote radio units (RRUs). IC Role / Device Role / Timing Role: Unidirectional TVS referenced to system ground, clamping positive excursions above -41 V (i.e., relative to -48 V rail). Use Value: Enables reliable operation under telecom-specific surges (GR-1089-CORE) while maintaining RθJA = 75 °C/W on standard PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ70A-E3/52T (Vishay) | Same VWM (70 V), lower PPPM (400 W), SMA (DO-214AC) package, RθJA = 110 °C/W | Limited to lower-energy transients; unsuitable for ISO 16750-2 load dump or IEC 61000-4-5 Level 4 | Select when board space is constrained and surge energy is ≤400 W; verify thermal margin on smaller pads. |
| 1.5KE70A (ON Semiconductor) | Same VWM (70 V), higher VC (115 V), axial-leaded DO-201AD package, no AEC-Q101 qualification | Not suitable for automated SMT assembly or automotive under-hood use due to leaded form factor and qualification gap | Choose only for through-hole prototyping or legacy designs where reflow compatibility and automotive certification are not required. |
Compared with SMAJ70A-E3/52T and 1.5KE70A, SMCG70AHE3/57T delivers 3.75× higher surge power handling, AEC-Q101 validation for automotive deployment, and optimized thermal performance in surface-mount gull-wing configuration - making it the preferred choice for high-reliability, high-energy SMT protection.
Availability
SMCG70AHE3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, and telecom DC feeder protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMCG70AHE3/57T 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCG series targets high-power transient suppression in automotive, industrial, and telecom infrastructure, engineered for AEC-Q101 compliance, low clamping voltage, and robust surge endurance in compact surface-mount packages.
FAQ
What is the clamping voltage of SMCG70AHE3/57T at its rated peak pulse current?
The SMCG70AHE3/57T has a maximum clamping voltage (VC) of 113 V at its specified peak pulse current (IPPM) of 13.3 A under the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's Document Number 88457, ensuring predictable overvoltage limiting during surge events without exceeding downstream IC voltage tolerances.
Is SMCG70AHE3/57T qualified for automotive applications?
Yes, SMCG70AHE3/57T carries the HE3 suffix, which explicitly denotes AEC-Q101 qualification per Vishay's ordering information and mechanical data tables. It is tested for high-temperature operating life, temperature cycling, and humidity bias stress - making SMCG70AHE3/57T suitable for engine control units, body electronics, and ADAS modules where automotive-grade reliability is mandatory.
What does the "57T" in SMCG70AHE3/57T indicate?
The "57T" suffix in SMCG70AHE3/57T specifies the packaging format: a 7-inch diameter plastic tape-and-reel carrier containing 850 units. This is defined in Vishay's ordering information table (page 3 of Doc. 88457) and aligns with industry-standard SMT placement equipment feed requirements for high-volume manufacturing.
How does the thermal resistance of SMCG70AHE3/57T affect PCB layout?
With a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W, SMCG70AHE3/57T requires mounting on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal to achieve rated power dissipation. Reducing pad area increases thermal impedance, risking junction overheating during repeated surges - so SMCG70AHE3/57T layout must follow Vishay's recommended footprint to sustain 6.5 W continuous power and 1500 W pulse capability.
Can SMCG70AHE3/57T be used in bidirectional configurations?
No, SMCG70AHE3/57T is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix and cathode band marking. Bidirectional variants like SMCG70CA exist in the same family but have different breakdown symmetry and no polarity marking. Using SMCG70AHE3/57T in bidirectional circuits would result in unintended forward conduction on negative transients - always verify polarity and suffix before substitution.
SMCG70AHE3/57T 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 70V
- Voltage - Breakdown (Min):
- 77.8V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 13.3A
- 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)
SMCG70AHE3/57T FAQ
1.How can I place an order for SMCG70AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG70AHE3/57T 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 SMCG70AHE3/57T reliable?
The price and inventory of SMCG70AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG70AHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG70AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG70AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG70AHE3/57T?
SMCG70AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG70AHE3/57T 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 SMCG70AHE3/57T?
For technical support, including SMCG70AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG70AHE3/57T requirements.
6.How does Aetrix verify that SMCG70AHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG70AHE3/57T 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 SMCG70AHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG70AHE3/57T?
All SMCG70AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG70AHE3/57T, 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 SMCG70AHE3/57T part is unused and in its original packaging.
Return procedure for SMCG70AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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