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Vishay General Semiconductor - Diodes Division SMCG90CAHE3/57T
- Part No.:
- SMCG90CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG90CAHE3/57T.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,640
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Product details
Overview
SMCG90CAHE3/57T from Vishay General Semiconductor is a bidirectional surface-mount TransZORB® transient voltage suppressor (TVS) in the SMCG (DO-215AB) package, rated for 90 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), and clamping to 146 V at 10.3 A IPPM under 10/1000 µs waveform. It features AEC-Q101 qualification, glass passivated junction, and UL 94 V-0 molding compound - deployed for automotive sensor line protection against inductive switching transients.
For engineers reviewing the SMCG90CAHE3/57T datasheet, SMCG90CAHE3/57T pinout, SMCG90CAHE3/57T application, or SMCG90CAHE3/57T equivalent, key selection criteria include bidirectional clamping symmetry, 146 V VC at rated IPPM, -55 °C to +150 °C operating range, MSL Level 1 compliance, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device operates as a bidirectional avalanche diode, leveraging symmetric breakdown characteristics (VBR min/max = 100 V / 111 V at 1 mA) to clamp voltage surges equally in both polarities. Its low incremental surge resistance and fast response time enable effective suppression of ESD, lightning-induced spikes, and load-dump transients on signal or power rails.
The SMCG90CAHE3/57T uses a glass-passivated silicon junction housed in an SMCG (DO-215AB) thermally optimized package with matte tin-plated leads. Thermal resistance is specified at RθJA = 75 °C/W (on 8.0 mm × 8.0 mm copper pads), supporting sustained operation up to TJ = 150 °C with derating above TA = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - maximum continuous reverse stand-off voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (min/max) | 100 V / 111 V at 1 mA - symmetric bidirectional breakdown window; ensures predictable turn-on across polarity |
| VC @ IPPM | 146 V at 10.3 A (10/1000 µs) - clamped voltage during worst-case surge; determines protected circuit's peak stress level |
| PPPM | 1500 W - peak transient power handling capability; validates robustness against IEC 61000-4-5 Level 4 surges |
| ID @ VWM | 1.0 µA - ultra-low reverse leakage at rated stand-off; minimizes standby power loss in high-impedance circuits |
| TJ max. | +150 °C - maximum junction temperature; enables use in under-hood automotive environments with thermal derating |
| MSL Level | Level 1 (J-STD-020) - supports standard reflow without moisture sensitivity concerns; no bake required pre-assembly |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, low-profile gull-wing package with 2 terminals; meets UL 94 V-0, AEC-Q101 qualified, RoHS compliant (HE3 suffix), and rated for 260 °C peak reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal A (bidirectional) | One side of symmetrical avalanche junction; no polarity marking; interchangeable with cathode in layout |
| Cathode | Terminal K (bidirectional) | Other side of symmetrical avalanche junction; no band marking per spec - terminals are functionally identical |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and infotainment interfaces requiring high-reliability surge immunity |
| Glass passivated chip junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives; critical for under-hood durability |
| Low incremental surge resistance | Enables tighter clamping (VC/VBR ratio ≈ 1.46) and lower let-through energy during fast transients like ESD or ISO 7637-2 pulses |
| MSL Level 1 rating | Eliminates pre-bake requirements and simplifies SMT line integration; compatible with standard J-STD-020 reflow profiles |
| UL 94 V-0 molding compound | Ensures flame-retardant behavior in fault conditions; required for automotive and industrial safety-critical PCB assemblies |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus lines and analog sensor inputs (e.g., pressure, temperature) in engine control units from load dump and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional TVS placed at connector interface to shunt surge energy before reaching MCU or signal conditioner ICs. Use Value: Clamps 10/1000 µs transients to ≤146 V while maintaining <1.0 µA leakage at 90 V - preserving signal integrity and enabling AEC-Q100-compliant system design. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Primary overvoltage clamp on each channel's input node, coordinated with series current-limiting resistor and optocoupler isolation. Use Value: Withstands 1500 W peak pulse power and operates from -55 °C to +150 °C - ensuring uptime in uncontrolled cabinet environments with wide thermal cycling. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Secondary-level surge protection on Ethernet PHY power rails and auxiliary bias supplies in base station remote radio units. IC Role / Device Role / Timing Role: Fast-response bidirectional clamp parallel to DC-DC converter input, downstream of primary MOV/GDT stage. Use Value: Symmetric VBR (100–111 V) and low clamping ratio ensure balanced protection on dual-polarity telecom supply rails without polarity dependency. |
Use Scenario: Input-stage transient suppression on AC-DC adapter secondary-side 12 V/19 V outputs feeding laptops or monitors. IC Role / Device Role / Timing Role: Final-clamp device after bulk filtering and before linear regulator or USB-PD controller, absorbing residual ringback and hot-swap spikes. Use Value: 146 V clamping at 10.3 A limits output rail overshoot to safe levels for downstream 20 V-rated capacitors and ICs - reducing BOM cost vs. higher-voltage alternatives. |
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 | Unidirectional; VWM = 90 V, VC = 146 V @ 10.3 A, same PPPM = 1500 W, but lacks bidirectional symmetry and AEC-Q101 qualification | Requires explicit polarity assignment in layout; unsuitable for AC-coupled or floating signal lines where polarity reversal may occur | Select SMAJ90A-E3/57T only when circuit topology guarantees fixed polarity and automotive qualification is not required. |
| SMCJ90CAHE3/57T | Same bidirectional functionality and AEC-Q101 rating, but in larger SMC (DO-214AB) package; higher thermal mass (RθJA = 40 °C/W vs. 75 °C/W) | Better sustained power handling under repeated surges; requires larger PCB area and incompatible footprint vs. SMCG | Choose SMCJ90CAHE3/57T when thermal performance under burst-mode transients outweighs space constraints and rework compatibility. |
Compared with SMCG90CAHE3/57T, SMAJ90A-E3/57T offers identical clamping and power rating but sacrifices bidirectionality and automotive qualification, while SMCJ90CAHE3/57T trades compact size for superior thermal dissipation - making SMCG90CAHE3/57T optimal for space-constrained AEC-Q101 designs needing polarity-agnostic protection.
Availability
SMCG90CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 compliance, and consistent 1500 W surge handling.
Supply support for SMCG90CAHE3/57T 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 TransZORB® family targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for low clamping, fast response, and robust packaging to meet stringent environmental and safety standards.
FAQ
What is the breakdown voltage range of the SMCG90CAHE3/57T?
The SMCG90CAHE3/57T has a bidirectional breakdown voltage (VBR) range of 100 V to 111 V at 1 mA test current, as specified in the Vishay datasheet (Document Number: 88457). This symmetric window ensures consistent clamping behavior regardless of transient polarity, and directly supports its 90 V stand-off rating with adequate margin.
Is the SMCG90CAHE3/57T suitable for automotive applications?
Yes, the SMCG90CAHE3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its -55 °C to +150 °C operating range, MSL Level 1 reflow compatibility, and UL 94 V-0 package make it appropriate for engine control units, ADAS sensor interfaces, and body electronics where transient immunity is critical.
Does the SMCG90CAHE3/57T have polarity markings on the package?
No - the SMCG90CAHE3/57T is a bidirectional device and carries no cathode band or polarity marking. Per Vishay documentation, "no marking on bidirectional types," and both terminals are functionally identical. Layout must treat the device as symmetric, with no directional orientation required during placement.
What is the clamping voltage of the SMCG90CAHE3/57T under standard surge conditions?
The SMCG90CAHE3/57T clamps to a maximum of 146 V at 10.3 A peak pulse current (IPPM) under the standardized 10/1000 µs double-exponential waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
How does the SMCG90CAHE3/57T differ from the unidirectional SMCG90AHE3/57T?
The SMCG90CAHE3/57T is bidirectional with symmetric VBR (100–111 V) and no polarity marking, whereas SMCG90AHE3/57T is unidirectional with cathode band, forward voltage drop (~3.5 V at 100 A), and different breakdown asymmetry. Only SMCG90CAHE3/57T supports AC-coupled or polarity-agnostic protection without external diode pairing.
SMCG90CAHE3/57T 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG90CAHE3/57T FAQ
1.How can I place an order for SMCG90CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG90CAHE3/57T 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 SMCG90CAHE3/57T reliable?
The price and inventory of SMCG90CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG90CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG90CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG90CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG90CAHE3/57T?
SMCG90CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG90CAHE3/57T 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 SMCG90CAHE3/57T?
For technical support, including SMCG90CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG90CAHE3/57T requirements.
6.How does Aetrix verify that SMCG90CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG90CAHE3/57T 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 SMCG90CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG90CAHE3/57T?
All SMCG90CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG90CAHE3/57T, 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 SMCG90CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCG90CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG90CAHE3/57T Tags
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