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Vishay General Semiconductor - Diodes Division SMCG17CA-E3/57T
- Part No.:
- SMCG17CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG17CA-E3/57T.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,136
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Product details
Overview
SMCG17CA-E3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount package, designed for clamping fast-rising ESD and surge transients on signal/power lines. It features a 17 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), <1 µA reverse leakage at VWM, and clamps to ≤27.6 V at 54.3 A IPPM - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCG17CA-E3/57T datasheet, SMCG17CA-E3/57T pinout, SMCG17CA-E3/57T application, or SMCG17CA-E3/57T equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, DO-215AB mechanical data, bidirectional clamping behavior, and direct alternatives for board-level surge protection design.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical VBR min/max (18.9–20.9 V), ID ≤1.0 µA at VWM = 17 V, and VC = 27.6 V at IPPM = 54.3 A under 10/1000 µs waveform. Its glass-passivated junction ensures stable clamping and low incremental surge resistance.
Rated for TJ = –55 °C to +150 °C, it meets MSL Level 1 (260 °C reflow), is RoHS-compliant (E3 suffix), and qualified to AEC-Q101 - confirming suitability for automotive under-hood and infotainment signal line protection where bidirectional transient immunity is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 18.9 V / 20.9 V at IT = 1 mA - guaranteed breakdown threshold range for reliable turn-on |
| VC @ IPPM | 27.6 V at 54.3 A - clamped voltage during 10/1000 µs surge, defining protected circuit stress level |
| PPPM | 1500 W - peak transient power handling capability per IEEE C62.35 standard |
| ID @ VWM | ≤1.0 µA - ultra-low leakage preserves signal integrity in high-impedance sensor lines |
| TJ max | +150 °C - enables placement near heat sources in engine control units and motor drives |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
SMCG17CA-E3/57T uses the SMCG (DO-215AB) surface-mount package: gull-wing leads, 0.220–0.245 inch body length, 0.115–0.125 inch width, 0.024–0.040 inch height, matte tin-plated terminals solderable per J-STD-002. Bidirectional construction has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional current path | No cathode band; terminals interchangeable - enables single-component protection of AC-coupled or differential lines |
| Lead 1 / Lead 2 | Surge current entry/exit points | Both leads conduct equally during positive or negative transients - eliminates layout polarity constraints |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC performance for ± polarity surges - simplifies protection of USB, CAN, LIN, and analog sensor pairs |
| AEC-Q101 qualification | Validated for automotive-grade reliability including 1000-cycle temperature cycling and 1000-hour HTRB - supports ASIL-B system integration |
| Low clamping ratio (VC/VBR) | 27.6 V / 18.9 V ≈ 1.46 - tight voltage margin between trigger and clamp limits IC stress during fast transients |
| MSL Level 1 rating | Compatible with standard SMT reflow profiles up to 260 °C peak - eliminates moisture sensitivity handling requirements |
| Glass-passivated junction | Stable leakage and breakdown over lifetime - prevents parameter drift in humid or high-vibration environments |
Applications
| Automotive Sensor Interface | Industrial Analog I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and temperature/pressure sensor outputs from load dump and ESD in vehicle cabins. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry to shunt transients before reaching ASIC input pins. Use Value: Clamps 1500 W surges to ≤27.6 V while maintaining <1 µA leakage - preserves sensor accuracy and avoids false triggers in 12 V systems. |
Use Scenario: Safeguarding 4–20 mA current loop inputs on PLC analog modules against field wiring surges and ground bounce. IC Role / Device Role / Timing Role: Parallel-connected TVS across loop terminals to limit common-mode voltage excursion during lightning-induced coupling. Use Value: Symmetric clamping ensures equal protection for both loop directions without polarity concerns - reduces BOM count in dual-channel modules. |
| USB 2.0 Data Line Protection | Automotive Infotainment Display Link |
Use Scenario: ESD suppression on D+/D− lines of automotive USB host ports exposed to human contact. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to USB connector to meet IEC 61000-4-2 ±15 kV air discharge requirement. Use Value: Sub-1 µA leakage and 27.6 V clamping prevent data corruption during hot-plug events while staying within USB 2.0 eye diagram margins. |
Use Scenario: Transient suppression on FPD-Link III or LVDS video interface cables connecting head unit to display. IC Role / Device Role / Timing Role: TVS mounted at display-side connector to absorb cable-borne surges induced by nearby motor actuation or antenna switching. Use Value: DO-215AB's low profile (0.040″ max height) fits tight space behind displays; AEC-Q101 ensures operation across –40 °C to +105 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ17CA | Same VWM (17 V), lower PPPM (400 W), SMA (DO-214AC) package - 30% smaller footprint but higher thermal resistance (RθJA = 110 °C/W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a load dump | Select when board space is critical and surge energy does not exceed 400 W peak. |
| 1.5KE17CA | Same VWM (17 V), higher PPPM (1500 W), axial leaded (DO-201AD) package - requires through-hole mounting and larger PCB area | Not suitable for automated SMT assembly; incompatible with high-density automotive modules | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required. |
Compared with SMAJ17CA and 1.5KE17CA, SMCG17CA-E3/57T uniquely combines AEC-Q101 qualification, DO-215AB gull-wing geometry for fine-pitch SMT, and full 1500 W surge rating - making it the only option qualified for production automotive signal-line protection in surface-mount layouts.
Availability
SMCG17CA-E3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial analog I/O modules, USB 2.0 port protection, and infotainment display links requiring stable component supply and AEC-Q101 compliance.
Supply support for SMCG17CA-E3/57T 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The SMCG series was developed specifically for high-reliability surface-mount transient suppression in automotive and industrial environments - prioritizing AEC-Q101 qualification, low-profile packaging, and symmetric bidirectional clamping performance.
FAQ
What is the clamping voltage of SMCG17CA-E3/57T under a 10/1000 µs surge?
The SMCG17CA-E3/57T clamps to a maximum of 27.6 V when subjected to its rated peak pulse current of 54.3 A using the standardized 10/1000 µs waveform. This value is measured at the device terminals under specified test conditions (TA = 25 °C, mounted on 8.0 mm × 8.0 mm copper pads), and defines the upper voltage limit imposed on protected circuitry during surge events.
Is SMCG17CA-E3/57T suitable for automotive applications?
Yes, SMCG17CA-E3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood and cabin environments. Its operating junction temperature range of –55 °C to +150 °C, MSL Level 1 reflow compatibility, and bidirectional clamping make it appropriate for protecting LIN, USB, and sensor interfaces in production vehicles - confirmed by Vishay's qualification report referenced in document 88457.
Does SMCG17CA-E3/57T have polarity markings?
No, SMCG17CA-E3/57T is a bidirectional TVS and carries no polarity marking on the package. The DO-215AB case has symmetrical terminals with identical electrical behavior in both directions - meaning either lead may connect to line or return without affecting clamping performance. This eliminates orientation errors during automated placement.
What is the maximum reverse leakage current for SMCG17CA-E3/57T at its stand-off voltage?
At its rated stand-off voltage (VWM) of 17 V and TA = 25 °C, SMCG17CA-E3/57T exhibits a maximum reverse leakage current (ID) of 1.0 µA. This ultra-low leakage ensures minimal loading on high-impedance signal paths such as thermistor inputs, precision ADC references, or open-drain communication lines.
How does the SMCG17CA-E3/57T package differ from SMAJ or SMC packages?
SMCG17CA-E3/57T uses the DO-215AB (SMCG) package - a gull-wing variant with tighter lead spacing (0.038–0.058 inch) and lower profile (max 0.040 inch height) than DO-214AB (SMA) or DO-214AA (SMB). Unlike SMAJ (DO-214AC), SMCG offers improved thermal dissipation (RθJL = 15 °C/W) and is optimized for high-volume automotive SMT lines with verified MSL Level 1 performance.
SMCG17CA-E3/57T 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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 54.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG17CA-E3/57T FAQ
1.How can I place an order for SMCG17CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG17CA-E3/57T 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 SMCG17CA-E3/57T reliable?
The price and inventory of SMCG17CA-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG17CA-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG17CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG17CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG17CA-E3/57T?
SMCG17CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG17CA-E3/57T 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 SMCG17CA-E3/57T?
For technical support, including SMCG17CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG17CA-E3/57T requirements.
6.How does Aetrix verify that SMCG17CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG17CA-E3/57T 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 SMCG17CA-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG17CA-E3/57T?
All SMCG17CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG17CA-E3/57T, 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 SMCG17CA-E3/57T part is unused and in its original packaging.
Return procedure for SMCG17CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG17CA-E3/57T Tags
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