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Vishay General Semiconductor - Diodes Division SMCG70CHE3/57T
- Part No.:
- SMCG70CHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG70CHE3/57T.pdf
- Description:
- TVS DIODE 70VWM 125VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,469
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Product details
Overview
SMCG70CHE3/57T from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) in DO-215AB (SMCG) package, designed for clamping voltage transients on signal or power lines. It features 70 V stand-off voltage (VWM), 113 V maximum clamping voltage (VC) at 13.3 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCG70CHE3/57T datasheet, SMCG70CHE3/57T pinout, SMCG70CHE3/57T application, or SMCG70CHE3/57T equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, DO-215AB thermal performance (RθJA = 75 °C/W), and compliance with UL 497B for telecom and automotive surge protection.
Technical Context
The SMCG70CHE3/57T operates as a bi-directional avalanche diode, leveraging glass-passivated junction technology to achieve sub-nanosecond response time and low incremental surge resistance. Its breakdown voltage (VBR) ranges from 77.8 V to 86.0 V at 1 mA test current, with reverse leakage ID ≤ 1.0 µA at 70 V stand-off.
Designed for surface-mount placement on 8.0 mm × 8.0 mm copper pads, it delivers stable clamping under repetitive transients while maintaining junction temperature ≤ 150 °C. The device meets MSL Level 1 per J-STD-020 and passes JESD 201 Class 2 whisker testing due to its HE3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 70 V - maximum continuous reverse operating voltage before clamping initiates |
| VC @ IPPM | 113 V at 13.3 A - clamped voltage during 10/1000 µs surge, defining protected circuit voltage ceiling |
| PPPM | 1500 W - peak transient power handling capacity, enabling robust protection against ISO 7637-2 Pulse 1/2a/5a |
| TJ max. | +150 °C - maximum junction temperature, supporting operation in under-hood automotive environments |
| RθJA | 75 °C/W - thermal resistance junction-to-ambient on standard 8 mm² pad, guiding heatsinking requirements |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD |
| UL Recognition | QVGQ2 file E136766 - certified per UL 497B for telecom and data line protectors |
Pinout & Package
Package: DO-215AB (SMCG), surface-mount gull-wing lead frame with matte tin-plated terminals, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). No polarity marking - bi-directional symmetry confirmed per datasheet note.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Bi-directional avalanche junction - either terminal serves as anode or cathode depending on transient polarity |
| Lead 1 / Lead 2 | PCB connection interface | Gull-wing leads compatible with automated SMT placement and J-STD-002 solderability standards |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity constraints |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to moisture-induced parameter drift in harsh environments |
| Low Rsurge | Minimizes voltage overshoot during fast transients (e.g., ESD, lightning-induced surges), improving system immunity |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without baking, simplifying manufacturing flow |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, critical for long-life automotive and industrial deployments |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional TVS placed across signal pair or supply rail to clamp ±100 V transients within 1 ns. Use Value: Maintains signal integrity below 113 V clamping threshold while surviving >1000 surges per AEC-Q101 stress profile. | Use Scenario: Safeguarding PLC digital input modules connected to 24 V DC field wiring exposed to relay coil kickback and EFT bursts. IC Role / Device Role / Timing Role: Standoff-rated TVS shunting surge energy away from optocoupler inputs and microcontroller GPIOs. Use Value: Withstands 1500 W pulses without degradation, eliminating need for series impedance or additional filtering components. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHY magnetics and RJ45 port circuitry from lightning-induced surges per IEC 61000-4-5 Level 4 (4 kV). IC Role / Device Role / Timing Role: Primary-level TVS on differential pairs, coordinated with secondary GDT or polymer PTC for staged protection. Use Value: UL 497B recognition (file E136766) validates suitability for telecom infrastructure safety compliance. | Use Scenario: Protecting MCU-based motor driver boards in washing machines and HVAC systems from brush-commutator arcing and power-line disturbances. IC Role / Device Role / Timing Role: Clamp device across H-bridge supply rails or gate-drive lines to prevent latch-up or overvoltage damage. Use Value: 150 °C TJ max and AEC-Q101 qualification ensure reliability in high-temperature enclosed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ70A-E3/57T | Uni-directional; VWM = 70 V, VC = 113 V, but lacks AEC-Q101 qualification and UL 497B recognition | Restricted to non-automotive commercial use; not suitable for automotive sensor nodes requiring Q101 validation | Select only if bi-directionality is unnecessary and automotive qualification is not required |
| SMCJ70CAHE3/57T | Same DO-214AB package (not DO-215AB); identical VWM/VC/PPPM specs; also AEC-Q101 and UL-recognized | Requires PCB footprint change - larger pad area needed for DO-214AB vs. DO-215AB; thermal resistance differs (RθJA = 40 °C/W vs. 75 °C/W) | Choose when higher thermal dissipation is prioritized and layout revision is acceptable |
Compared with SMAJ70A-E3/57T and SMCJ70CAHE3/57T, the SMCG70CHE3/57T uniquely combines bi-directional operation, DO-215AB's compact gull-wing footprint, AEC-Q101 qualification, and UL 497B listing - making it optimal for space-constrained, safety-certified automotive and industrial signal-line protection where polarity-agnostic clamping is essential.
Availability
SMCG70CHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial digital I/O protection, telecom line interfaces, and consumer appliance motor control requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMCG70CHE3/57T 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 and automotive-grade qualification.
The SMCG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy, bi-directional transient suppression in automotive, industrial, and telecom applications demanding AEC-Q101 compliance and UL safety recognition.
FAQ
What does the "HE3" suffix indicate in SMCG70CHE3/57T?
The HE3 suffix in SMCG70CHE3/57T denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. It distinguishes this variant from commercial-grade E3 versions and confirms suitability for automotive electronics per stress-test requirements including high-temperature operating life and thermal cycling.
Is SMCG70CHE3/57T bi-directional or uni-directional?
SMCG70CHE3/57T is explicitly bi-directional, as indicated by the "CA" designation in its family name (SMCG70CA) and confirmed by zero polarity marking on the DO-215AB package. Its electrical characteristics - including symmetric VBR min/max and clamping behavior - apply identically in both directions, enabling protection of AC signals and differential buses without orientation constraints.
What is the maximum clamping voltage for SMCG70CHE3/57T under standard test conditions?
The maximum clamping voltage (VC) for SMCG70CHE3/57T is 113 V, measured at 13.3 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is guaranteed across the full operating temperature range of −55 °C to +150 °C.
Does SMCG70CHE3/57T meet automotive reliability standards?
Yes, SMCG70CHE3/57T is AEC-Q101 qualified, with test evidence documented in Vishay's certification files. It passes high-temperature operating life (HTOL), temperature cycling (TCT), and electrostatic discharge (HBM/MM) tests required for automotive grade-1 applications, and is rated for junction temperatures up to +150 °C - confirming suitability for under-hood and ECU deployment.
What packaging format is used for SMCG70CHE3/57T?
SMCG70CHE3/57T is supplied in 7-inch plastic tape and reel format (package code 57T), with 850 units per reel. The DO-215AB (SMCG) gull-wing package supports automated SMT placement and complies with J-STD-002 solderability standards; the matte tin plating ensures compatibility with lead-free reflow profiles up to 260 °C peak.
SMCG70CHE3/57T 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 70V
- Voltage - Breakdown (Min):
- 77.8V
- Voltage - Clamping (Max) @ Ipp:
- 125V
- Current - Peak Pulse (10/1000µs):
- 12A
- 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)
SMCG70CHE3/57T FAQ
1.How can I place an order for SMCG70CHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG70CHE3/57T 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 SMCG70CHE3/57T reliable?
The price and inventory of SMCG70CHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG70CHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG70CHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG70CHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG70CHE3/57T?
SMCG70CHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG70CHE3/57T 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 SMCG70CHE3/57T?
For technical support, including SMCG70CHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG70CHE3/57T requirements.
6.How does Aetrix verify that SMCG70CHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG70CHE3/57T 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 SMCG70CHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG70CHE3/57T?
All SMCG70CHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG70CHE3/57T, 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 SMCG70CHE3/57T part is unused and in its original packaging.
Return procedure for SMCG70CHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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