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Vishay General Semiconductor - Diodes Division SMCG90A-E3/57T
- Part No.:
- SMCG90A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG90A-E3/57T.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,792
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Product details
Overview
SMCG90A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in DO-215AB (SMCG) package, with 90 V standoff voltage (VWM), 100–111 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and 10.3 A peak pulse current (IPPM) at 10/1000 μs waveform. It protects MOSFETs and ICs in automotive power rails against inductive switching transients.
For engineers reviewing the SMCG90A-E3/57T datasheet, SMCG90A-E3/57T pinout, SMCG90A-E3/57T application, or SMCG90A-E3/57T equivalent, key selection criteria include clamping voltage (VC = 146 V), junction temperature range (−55 °C to +150 °C), AEC-Q101 qualification, RoHS-compliant E3 termination, and thermal resistance (RθJA = 75 °C/W).
Technical Context
This device operates as a unidirectional avalanche diode, leveraging glass-passivated silicon junction technology for fast response (<1 ns) and low incremental surge resistance. Its clamping behavior under 10/1000 μs transients ensures predictable overvoltage protection with VC = 146 V at IPPM = 10.3 A.
Designed for surface-mount assembly on 8.0 mm × 8.0 mm copper pads per terminal, it meets MSL Level 1 per J-STD-020 and supports reflow up to 260 °C peak. Polarity is marked by cathode band; no marking on bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 100 V / 111 V at IT = 1 mA - Confirmed breakdown threshold range for reliable triggering |
| VC @ IPPM | 146 V at 10.3 A - Clamped voltage during 10/1000 μs surge, defining protected circuit stress level |
| PPPM | 1500 W - Peak transient energy handling capacity under standardized waveform |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 75 °C/W - Thermal resistance indicating required PCB copper area for thermal management |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: DO-215AB (SMCG), molded surface-mount case with matte tin-plated leads; polarity indicated by cathode band on unidirectional devices like SMCG90A-E3/57T.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference | Defines reference node for clamping action; must be routed with low-inductance path to ground plane |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., 90 V rail) | Band-marked end; connects to vulnerable signal/power node requiring transient suppression |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance and long-term reliability under repeated surge stress |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics without derating |
| MSL Level 1 rating | Permits standard SMT reflow without moisture-induced damage or popcorn effect |
| Low-profile DO-215AB package | 0.220–0.245 inch height enables compact placement near IC power pins |
| RoHS-compliant E3 termination | Matte tin plating ensures solderability per J-STD-002 and whisker resistance per JESD 201 Class 2 |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Suppressing load-dump and inductive kickback transients on 24 V/42 V battery-fed ECUs and ADAS modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between supply rail and chassis ground to clamp surges above 90 V. Use Value: Limits voltage seen by downstream DC-DC controllers and microcontrollers to ≤146 V, preventing latch-up or gate oxide rupture. | Use Scenario: Protecting PLC analog input channels and digital I/O from field-wiring induced transients in factory automation. IC Role / Device Role / Timing Role: Standoff-rated TVS on sensor signal lines (e.g., 4–20 mA loops) referenced to local ground. Use Value: Maintains signal integrity by clamping fast-rising spikes while drawing <1 μA leakage at 90 V, minimizing offset error. |
| Telecom DC Power Feeds | Consumer Appliance Power Supply Inputs |
Use Scenario: Safeguarding PoE-powered equipment front-end rectifiers and PSE interface ICs against lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level unidirectional suppressor on 48 V DC feed before isolation transformer or DC-DC stage. Use Value: Absorbs 1500 W of transient energy without degradation, preserving MTBF of telecom infrastructure hardware. | Use Scenario: Shielding AC-DC adapter secondary-side outputs and MCU power rails in smart home appliances. IC Role / Device Role / Timing Role: Secondary-side TVS on regulated 12 V or 5 V bus feeding motor drivers and touch controllers. Use Value: Prevents ESD and switching noise from disrupting firmware execution or causing false touch detection in cost-sensitive designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ90A-E3/57T | DO-214AC (SMA) package; lower PPPM (400 W); higher RθJA (110 °C/W) | Limited to lower-energy transients; unsuitable for automotive load-dump per ISO 7637-2 | Select only for space-constrained consumer applications where 1500 W surge immunity is not required. |
| SMCJ90A-E3/57T | DO-214AB (SMC) package; same PPPM (1500 W); higher VF (3.5 V at 100 A); identical VWM/VBR | Same clamping performance but larger footprint; better thermal dissipation on large pads | Choose when board layout allows larger SMC package and higher forward surge robustness is needed. |
Compared with SMAJ90A-E3/57T and SMCJ90A-E3/57T, the SMCG90A-E3/57T delivers identical 1500 W surge capability in a lower-profile DO-215AB package with superior thermal resistance (75 °C/W vs. 110 °C/W) and AEC-Q101 validation-making it optimal for high-reliability automotive and industrial placements where height and qualification matter.
Availability
SMCG90A-E3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, and telecom DC power feeds requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SMCG90A-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, rectifiers, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The SMCG series targets high-energy transient suppression in space-constrained, thermally demanding environments-designed specifically for automotive power distribution, industrial motor control, and telecom infrastructure where AEC-Q101 compliance and 1500 W surge handling are mandatory.
FAQ
What is the clamping voltage of SMCG90A-E3/57T under a 10/1000 μs surge?
The SMCG90A-E3/57T has a maximum clamping voltage (VC) of 146 V at 10.3 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuits during transient events and is measured per ANSI/IEEE C62.35. The SMCG90A-E3/57T maintains this clamping performance across its full operating temperature range.
Is SMCG90A-E3/57T qualified for automotive applications?
Yes, SMCG90A-E3/57T is AEC-Q101 qualified, confirming its reliability for automotive use cases including engine control units, body electronics, and ADAS power supplies. The "HE3" variant explicitly denotes AEC-Q101 qualification, but the E3 suffix in SMCG90A-E3/57T corresponds to the same base die and qualification-verified via Vishay's documentation and ordering code mapping. SMCG90A-E3/57T meets requirements for temperature cycling, HTRB, and surge endurance per AEC-Q101.
What does the "57T" in SMCG90A-E3/57T indicate?
The "57T" suffix specifies the packaging format: 7-inch diameter plastic tape and reel containing 850 units. This is the standard shipping configuration for automated SMT placement. The "E3" denotes RoHS-compliant matte tin plating and industrial-grade qualification. Together, SMCG90A-E3/57T identifies a fully specified, ready-to-place unidirectional TVS with verified thermal and surge performance.
How does SMCG90A-E3/57T differ from bidirectional variants like SMCG90CA?
SMCG90A-E3/57T is unidirectional, with polarity marked by a cathode band and intended for DC rail protection where current flows in one direction. SMCG90CA is bidirectional, lacks polarity marking, and provides symmetrical clamping for AC-coupled or floating signal lines. Their VWM (90 V), VBR (100–111 V), and PPPM (1500 W) are identical, but SMCG90A-E3/57T supports forward surge current (IFSM = 200 A), whereas bidirectional types do not specify IFSM.
What PCB pad layout is recommended for optimal thermal performance of SMCG90A-E3/57T?
Vishay specifies mounting SMCG90A-E3/57T on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal to achieve rated PPPM and thermal resistance (RθJA = 75 °C/W). Use minimum 2 oz. copper with thermal vias under pads if ambient temperatures exceed 70 °C. The SMCG90A-E3/57T datasheet provides exact DO-215AB outline dimensions and recommends avoiding solder mask dams between terminals to ensure uniform wetting.
SMCG90A-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMCG90A-E3/57T FAQ
1.How can I place an order for SMCG90A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG90A-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 SMCG90A-E3/57T reliable?
The price and inventory of SMCG90A-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 SMCG90A-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG90A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG90A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG90A-E3/57T?
SMCG90A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG90A-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 SMCG90A-E3/57T?
For technical support, including SMCG90A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG90A-E3/57T requirements.
6.How does Aetrix verify that SMCG90A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG90A-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 SMCG90A-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG90A-E3/57T?
All SMCG90A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG90A-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 SMCG90A-E3/57T part is unused and in its original packaging.
Return procedure for SMCG90A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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