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Vishay General Semiconductor - Diodes Division SMCG8.5CAHE3/57T
- Part No.:
- SMCG8.5CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG8.5CAHE3/57T.pdf
- Description:
- TVS DIODE 8.5VWM 14.4VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,672
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Product details
Overview
SMCG8.5CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) in the SMCG (DO-215AB) surface-mount package, rated for 8.5 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), and clamping voltage of 14.4 V at 104.2 A IPPM under 10/1000 μs waveform. It features AEC-Q101 qualification, glass passivated junction, and UL 94 V-0 molding compound - designed for automotive-level ESD and surge protection on signal lines and power rails.
For engineers reviewing the SMCG8.5CAHE3/57T datasheet, SMCG8.5CAHE3/57T pinout, SMCG8.5CAHE3/57T application, or SMCG8.5CAHE3/57T equivalent, key selection criteria include bidirectional clamping behavior, 14.4 V VC at rated surge current, AEC-Q101 qualification status, DO-215AB thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical breakdown characteristics in both directions (VBR min/max = 9.44 V / 10.4 V at IT = 1 mA), enabling robust transient suppression without polarity sensitivity. Its low incremental surge resistance and fast response time ensure effective protection against ESD (IEC 61000-4-2), lightning-induced surges (IEC 61000-4-5), and inductive switching transients.
The SMCG8.5CAHE3/57T uses a glass-passivated silicon junction housed in an SMCG (DO-215AB) thermally optimized package with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. It meets MSL Level 1 (260 °C peak reflow) and supports operation across -55 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.5 V - maximum continuous reverse stand-off voltage before clamping begins |
| VBR (min/max) | 9.44 V / 10.4 V at 1 mA - symmetric breakdown threshold in both directions |
| VC @ IPPM | 14.4 V at 104.2 A - clamped voltage during 10/1000 μs surge, defining protected circuit stress level |
| PPPM | 1500 W - peak transient power handling capability under standardized surge waveform |
| ID @ VWM | 20 μA - leakage current at operating voltage, critical for low-power sensor line integrity |
| TJ max. | +150 °C - maximum junction temperature enabling under-hood automotive deployment |
| RθJA | 75 °C/W - thermal resistance to ambient on standard 8 mm × 8 mm copper pads |
Pinout & Package
SMCG8.5CAHE3/57T is housed in the SMCG (DO-215AB) surface-mount package - a dual-leaded, gull-wing configuration with no polarity marking for bidirectional operation. The case conforms to JEDEC DO-215AB mechanical outline and provides optimized thermal dissipation via exposed copper pad contact.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Either terminal accepts surge current; symmetrical conduction enables polarity-agnostic PCB layout |
| Cathode | Transient current exit (bidirectional) | Paired with Anode to form low-impedance clamping path; no band marking distinguishes terminals |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM/MM |
| Glass passivated junction | Enhanced reliability and moisture resistance vs. epoxy-passivated alternatives; stable VBR over lifetime |
| UL 94 V-0 molding compound | Self-extinguishing flammability rating required for safety-critical automotive and industrial enclosures |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning or dry-pack requirements |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a) |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver I/O pins in engine control units against load dump and ESD events. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed directly at connector interface to shunt transients before reaching transceiver input stage. Use Value: Maintains signal integrity below 14.4 V clamping threshold while surviving 104.2 A surge current per IEC 61000-4-5 Level 4. | Use Scenario: Safeguarding differential CAN_H/CAN_L lines in factory automation gateways exposed to motor drive noise. IC Role / Device Role / Timing Role: Symmetric transient suppressor bridging CAN bus pair to ground, absorbing common-mode surges without disrupting data timing. Use Value: Enables uninterrupted CAN FD communication up to 5 Mbps by limiting bus voltage excursions to ≤14.4 V during 1500 W transients. |
| Consumer USB Type-C Port Protection | Telecom Base Station DC Power Input |
Use Scenario: Securing USB-C CC and VBUS lines in portable docking stations against hot-plug ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to connector to clamp ±15 kV contact ESD per IEC 61000-4-2. Use Value: Prevents latch-up in USB PD controllers by limiting VBUS overvoltage to 14.4 V with <20 μA leakage at 8.5 V nominal. | Use Scenario: Front-end surge protection for 48 V DC power inputs in 5G remote radio units subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device on DC input rail upstream of DC/DC converters and PMICs. Use Value: Absorbs 1500 W 10/1000 μs surges without degradation, maintaining system uptime per Telcordia GR-1089-CORE requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.5CA | Same VWM (8.5 V) and VC (14.4 V), but lower PPPM (400 W) and DO-214AC (SMA) package with higher RθJA (110 °C/W) | Limited to lower-energy transients; unsuitable for automotive load dump per ISO 7637-2 | Select SMAJ8.5CA only for cost-sensitive consumer applications with <400 W surge exposure. |
| 1.5KE8.5CA | Higher PPPM (1500 W), but axial DO-15 through-hole package; no AEC-Q101 qualification; larger footprint and manual assembly required | Not suitable for automated SMT production or space-constrained automotive modules | Choose 1.5KE8.5CA only for legacy through-hole designs where rework flexibility outweighs AEC-Q101 compliance needs. |
Compared with SMAJ8.5CA and 1.5KE8.5CA, the SMCG8.5CAHE3/57T uniquely combines AEC-Q101 qualification, 1500 W surge rating, and DO-215AB SMT compatibility - making it the only option qualified for high-reliability automotive signal-line protection with automated manufacturing support.
Availability
SMCG8.5CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, consumer USB-C docking stations, and telecom DC power inputs requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMCG8.5CAHE3/57T 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, thermal performance, and automotive-grade validation.
The SMCG series was developed specifically for high-energy, surface-mount transient suppression in automotive and industrial environments - prioritizing AEC-Q101 compliance, low clamping voltage, and robust surge handling in compact DO-215AB packaging.
FAQ
What is the breakdown voltage range of the SMCG8.5CAHE3/57T?
The SMCG8.5CAHE3/57T has a bidirectional breakdown voltage range of 9.44 V to 10.4 V measured at 1 mA test current (IT), per Vishay Document 88457. This symmetric VBR ensures consistent clamping behavior regardless of surge polarity, and is validated across the full operating temperature range of -55 °C to +150 °C.
Is the SMCG8.5CAHE3/57T suitable for automotive applications?
Yes, the SMCG8.5CAHE3/57T is AEC-Q101 qualified and explicitly rated for automotive use per Vishay's documentation. Its DO-215AB package, 1500 W surge rating, and operation up to +150 °C junction temperature make it appropriate for engine control units, body electronics, and ADAS sensor interfaces subject to ISO 7637-2 and IEC 61000-4-5 stress conditions.
Does the SMCG8.5CAHE3/57T have polarity markings on the package?
No, the SMCG8.5CAHE3/57T is a bidirectional TVS and carries no polarity marking - consistent with Vishay's specification that "no marking on bidirectional types." Both terminals are functionally identical, allowing flexible PCB layout without orientation constraints during automated placement.
What is the maximum clamping voltage of the SMCG8.5CAHE3/57T under surge conditions?
The SMCG8.5CAHE3/57T clamps to a maximum of 14.4 V when subjected to its rated peak pulse current (IPPM) of 104.2 A under the standard 10/1000 μs waveform. This value is guaranteed across temperature and represents the upper limit of voltage seen by downstream circuitry during transient events.
What packaging format does the SMCG8.5CAHE3/57T ship in?
The SMCG8.5CAHE3/57T ships in 7-inch diameter plastic tape and reel format (package code 57T), with 850 units per reel. This configuration supports high-speed pick-and-place assembly and complies with EIA-481-D standards for SMT automation.
SMCG8.5CAHE3/57T 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):
- 8.5V
- Voltage - Breakdown (Min):
- 9.44V
- Voltage - Clamping (Max) @ Ipp:
- 14.4V
- Current - Peak Pulse (10/1000µs):
- 104.2A
- 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)
SMCG8.5CAHE3/57T FAQ
1.How can I place an order for SMCG8.5CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG8.5CAHE3/57T 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 SMCG8.5CAHE3/57T reliable?
The price and inventory of SMCG8.5CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG8.5CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG8.5CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG8.5CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG8.5CAHE3/57T?
SMCG8.5CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG8.5CAHE3/57T 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 SMCG8.5CAHE3/57T?
For technical support, including SMCG8.5CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG8.5CAHE3/57T requirements.
6.How does Aetrix verify that SMCG8.5CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG8.5CAHE3/57T 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 SMCG8.5CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG8.5CAHE3/57T?
All SMCG8.5CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG8.5CAHE3/57T, 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 SMCG8.5CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCG8.5CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG8.5CAHE3/57T Tags
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