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Vishay General Semiconductor - Diodes Division SMCG8.0CAHE3/57T
- Part No.:
- SMCG8.0CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG8.0CAHE3/57T.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,907
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Product details
Overview
SMCG8.0CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount package, designed for robust overvoltage protection of signal and power lines. It features a 8.0 V stand-off voltage (VWM), 13.6 V maximum clamping voltage (VC) at 110.3 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (PPPM) with a 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the SMCG8.0CAHE3/57T datasheet, SMCG8.0CAHE3/57T pinout, SMCG8.0CAHE3/57T application, or SMCG8.0CAHE3/57T equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with automated SMT assembly on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a bidirectional avalanche diode, leveraging glass-passivated junction technology to deliver symmetrical breakdown behavior in both polarities. Its electrical characteristics - including VBR min/max of 8.89 V / 9.83 V at 1 mA test current and ID ≤ 1.0 µA at VWM - are specified under standard JEDEC conditions and validated per ANSI/IEEE C62.35.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation up to TJ = +150 °C. The SMCG8.0CAHE3/57T is qualified to AEC-Q101 and meets UL 497B recognition (file E136766), supporting use in automotive-grade electronics without derating at ambient temperatures ≤ 85 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 8.89 V / 9.83 V at IT = 1 mA - Ensures predictable, symmetrical breakdown in both directions |
| VC @ IPPM | 13.6 V at 110.3 A - Limits transient-induced stress on downstream ICs during 10/1000 µs surges |
| PPPM | 1500 W - Withstands high-energy transients common in automotive load-dump and inductive switching events |
| ID @ VWM | ≤ 1.0 µA - Minimizes standby leakage in battery-powered or low-power sensor nodes |
| TJ max. | +150 °C - Supports under-hood automotive placement and industrial environments with elevated ambient temps |
| MSL Level | Level 1 (260 °C peak reflow) - Compatible with standard lead-free SMT processes without dry-pack requirements |
| AEC-Q101 | Qualified - Validated for automotive applications requiring reliability beyond industrial-grade components |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, gull-wing surface-mount case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Accepts surge current in either polarity; no polarity marking on device body |
| Cathode | Transient current exit (bidirectional) | Completes symmetrical conduction path; identical electrical role to anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime, critical for automotive-grade repeatability |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, ISO 7637-2 pulses) |
| Very fast response time | Sub-nanosecond clamping enables protection of high-speed interfaces like CAN FD and LIN |
| UL 497B recognized (E136766) | Validated for telecom and industrial surge protection systems requiring third-party safety certification |
| RoHS-compliant + AEC-Q101 qualified (HE3 suffix) | Meets automotive supply chain requirements for environmental compliance and reliability validation |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control units from load-dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector interface to shunt transients before reaching ADC input or signal conditioner. Use Value: Clamps 1500 W surges to ≤13.6 V while maintaining <1.0 µA leakage - preserving signal integrity and measurement accuracy. | Use Scenario: Safeguarding RS-485 transceivers and PLC digital inputs against EFT and surge events in factory automation. IC Role / Device Role / Timing Role: Primary line-level protector on field-side signal traces, mounted adjacent to connectors per IEC 61000-4-4/5 requirements. Use Value: Symmetrical clamping ensures equal protection for differential pairs; AEC-Q101 qualification supports extended product lifecycle in harsh environments. |
| Automotive Body Control Module | Consumer Appliance Motor Drive |
Use Scenario: Shielding LIN bus lines and switch inputs in door modules and lighting controllers from battery transients and ESD. IC Role / Device Role / Timing Role: Low-capacitance bidirectional suppressor integrated into PCB layout near microcontroller GPIO pins. Use Value: 13.6 V clamping prevents latch-up in 5 V logic rails; MSL Level 1 enables direct placement in high-volume SMT lines. | Use Scenario: Protecting microcontroller reset and enable lines in washing machine motor control boards exposed to relay coil flyback. IC Role / Device Role / Timing Role: Secondary-level TVS on low-voltage control signals downstream of primary AC/DC stage. Use Value: 8.0 V VWM matches 5 V/3.3 V rail tolerances; glass passivation ensures long-term stability across thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0CA | Same VWM (8.0 V) and bidirectional configuration, but lower PPPM (400 W) and higher VC (12.0 V at 32.6 A) | Targeted at lower-energy transients (e.g., ESD-only); not rated for automotive load-dump per ISO 7637-2 | Select SMAJ8.0CA only when surge energy is limited and cost sensitivity outweighs automotive qualification needs. |
| SMCJ8.0CA | Identical VWM and bidirectional design, but larger SMC (DO-214AB) package, higher PPPM (1500 W), and same VC (13.6 V at 110.3 A) | Requires larger PCB footprint; better thermal dissipation for sustained surge duty cycles | Choose SMCJ8.0CA when board space permits and junction temperature management under repeated surges is critical. |
Compared with SMAJ8.0CA and SMCJ8.0CA, the SMCG8.0CAHE3/57T delivers identical clamping performance in a smaller DO-215AB footprint while retaining AEC-Q101 qualification - making it optimal for space-constrained automotive modules where reliability and miniaturization are jointly prioritized.
Availability
SMCG8.0CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, and consumer appliance control circuits requiring stable component supply across multi-year production programs.
Supply support for SMCG8.0CAHE3/57T 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure where AEC-Q101 qualification and UL recognition are mandatory.
FAQ
What does the "HE3" suffix indicate in SMCG8.0CAHE3/57T?
The HE3 suffix denotes RoHS-compliant construction with AEC-Q101 qualification, distinguishing it from industrial-grade E3 variants. This means SMCG8.0CAHE3/57T has undergone stress testing per automotive reliability standards - including temperature cycling, humidity bias, and surge endurance - and is approved for use in vehicle subsystems such as body electronics and ADAS sensors.
Is SMCG8.0CAHE3/57T unidirectional or bidirectional?
SMCG8.0CAHE3/57T is a bidirectional TVS diode, as confirmed by the "CA" suffix and its symmetrical electrical characteristics: VBR min/max (8.89 V / 9.83 V) and VC (13.6 V) apply identically in both polarities. Unlike unidirectional types, it carries no cathode band marking and protects AC-coupled or differential signal paths without polarity concerns.
What is the maximum clamping voltage of SMCG8.0CAHE3/57T and under what test condition?
The maximum clamping voltage (VC) of SMCG8.0CAHE3/57T is 13.6 V, measured at 110.3 A peak pulse current (IPPM) using a 10/1000 µs double-exponential waveform. This value is guaranteed per the Vishay datasheet (Doc. #88457, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Does SMCG8.0CAHE3/57T require special handling for moisture sensitivity?
No - SMCG8.0CAHE3/57T is rated MSL Level 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions and subjected to standard lead-free reflow profiles with a maximum peak temperature of 260 °C without baking or dry-pack requirements. This simplifies manufacturing logistics versus higher-MSL components.
How does the SMCG (DO-215AB) package compare to SMA (DO-214AC) in size and thermal performance?
The SMCG (DO-215AB) package is dimensionally smaller than SMA (DO-214AC) - with a 0.245" × 0.125" outline versus 0.280" × 0.180" - yet maintains comparable thermal resistance: RθJA = 75 °C/W for SMCG8.0CAHE3/57T versus ~80–90 °C/W for typical SMA devices. Its gull-wing leads also improve solder joint reliability in vibration-prone automotive applications.
SMCG8.0CAHE3/57T 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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 110.3A
- 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)
SMCG8.0CAHE3/57T FAQ
1.How can I place an order for SMCG8.0CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG8.0CAHE3/57T 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 SMCG8.0CAHE3/57T reliable?
The price and inventory of SMCG8.0CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG8.0CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG8.0CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG8.0CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG8.0CAHE3/57T?
SMCG8.0CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG8.0CAHE3/57T 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 SMCG8.0CAHE3/57T?
For technical support, including SMCG8.0CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG8.0CAHE3/57T requirements.
6.How does Aetrix verify that SMCG8.0CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG8.0CAHE3/57T 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 SMCG8.0CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG8.0CAHE3/57T?
All SMCG8.0CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG8.0CAHE3/57T, 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 SMCG8.0CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCG8.0CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG8.0CAHE3/57T Tags
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