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Vishay General Semiconductor - Diodes Division SMCG54CA-E3/57T
- Part No.:
- SMCG54CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG54CA-E3/57T.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,819
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Product details
Overview
SMCG54CA-E3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection on signal and power lines. It features a 54 V standoff voltage (VWM), 60.0–66.3 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and clamps transients to ≤87.1 V at 17.2 A, making it suitable for automotive sensor interface and industrial I/O protection.
For engineers reviewing the SMCG54CA-E3/57T datasheet, SMCG54CA-E3/57T pinout, SMCG54CA-E3/57T application, or SMCG54CA-E3/57T equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 1500 W surge rating with 10/1000 µs waveform, low thermal resistance (RθJL = 15 °C/W), and compatibility with automated SMT placement on standard 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 clamping in both polarities. Its electrical characteristics-including VBR min/max, ID ≤1.0 µA at VWM, and VC ≤87.1 V at IPPM-are fully specified for bidirectional use per ANSI/IEEE C62.35 standards.
Designed for high-reliability environments, SMCG54CA-E3/57T meets MSL Level 1 (260 °C reflow), passes JESD201 Class 2 whisker testing, and is AEC-Q101 qualified-confirming suitability for automotive electronics where transient immunity and long-term stability under thermal cycling are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 60.0 V / 66.3 V - Breakdown occurs within this range at 1 mA test current, ensuring predictable turn-on |
| VC @ IPPM | ≤87.1 V at 17.2 A - Clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - Peak pulse power handling capacity defines maximum transient energy absorption |
| ID @ VWM | ≤1.0 µA - Ultra-low leakage preserves signal integrity and minimizes standby power loss |
| TJ max. | +150 °C - Enables operation in under-hood automotive and high-temperature industrial enclosures |
| RθJL | 15 °C/W - Low junction-to-lead thermal resistance supports reliable power dissipation without external heatsinking |
Pinout & Package
SMCG54CA-E3/57T uses the SMCG (DO-215AB) surface-mount package: low-profile, gull-wing leads, matte tin-plated terminals solderable per J-STD-002, with no polarity marking (bidirectional configuration).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient conduction path | No polarity marking required; identical clamping behavior in either direction for AC or floating-line protection |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| Glass-passivated junction | Enhances long-term stability and reduces parameter drift under repeated surge events |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns (peak 260 °C) |
| 1500 W 10/1000 µs rating | Protects against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 surges in industrial and vehicle networks |
| Low RθJL (15 °C/W) | Allows >90% of surge energy to be conducted through leads into PCB copper, reducing localized heating |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in engine control units. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector or header entry point to shunt surge energy before reaching MCU or signal conditioner. Use Value: Maintains signal fidelity during 1500 W transients while meeting AEC-Q101 requirements for 15-year vehicle service life. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil kickback and ESD in factory automation systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, coordinated with series impedance to limit let-through current. Use Value: Prevents false triggering and latch-up in optocouplers or Schmitt-trigger inputs during 10/1000 µs surges up to 1 kV. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Protecting Ethernet PHY or RS-485 transceivers connected to unshielded field wiring subject to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS placed after common-mode chokes to suppress differential-mode transients crossing data lines. Use Value: Limits clamping voltage to <87.1 V while maintaining <1.0 µA leakage-critical for maintaining receiver sensitivity and jitter performance. | Use Scenario: Output-side surge suppression on 54 V DC power rails feeding USB-PD or PoE-powered devices. IC Role / Device Role / Timing Role: Final-stage protector between DC-DC converter output and load connector, absorbing residual switching spikes and hot-plug transients. Use Value: Ensures compliance with IEC 62368-1 Annex G surge tests without derating adjacent capacitors or regulators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ54CA | Same VWM/VBR/PPPM specs but SMA (DO-214AC) package; higher RθJA (100 °C/W vs. 75 °C/W) | Limited to lower-duty-cycle surges due to reduced thermal mass; not AEC-Q101 qualified | Choose SMAJ54CA only if board space constraints prohibit DO-215AB footprint or AEC-Q101 is not required. |
| SMCJ54CA | Same DO-214AB package as SMCG but rated for 1500 W with tighter VBR tolerance (60.0–64.7 V); identical RθJL | Offers marginally lower clamping (VC = 87.1 V same), but lacks AEC-Q101 certification and MSL Level 1 rating | Select SMCJ54CA for cost-sensitive industrial designs where automotive qualification is unnecessary and lead time favors legacy stock. |
Compared with SMAJ54CA and SMCJ54CA, SMCG54CA-E3/57T uniquely combines AEC-Q101 qualification, MSL Level 1 process compatibility, and 15 °C/W junction-to-lead thermal resistance-enabling sustained surge handling in automotive and high-reliability industrial deployments without layout or thermal redesign.
Availability
SMCG54CA-E3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line drivers, and consumer power adapter outputs requiring stable component supply across multi-year production cycles.
Supply support for SMCG54CA-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCG series was developed to deliver high-power transient suppression in compact surface-mount packages for automotive and industrial applications demanding AEC-Q101 compliance, low thermal resistance, and automated assembly compatibility.
FAQ
What is the clamping voltage of SMCG54CA-E3/57T under a 10/1000 µs surge?
The SMCG54CA-E3/57T clamps to a maximum of 87.1 V when subjected to its rated peak pulse current of 17.2 A using the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 09-Jan-2024, ensuring predictable overvoltage limiting for protected circuits.
Is SMCG54CA-E3/57T suitable for automotive applications?
Yes, SMCG54CA-E3/57T is AEC-Q101 qualified and explicitly rated for automotive use. Its construction-glass-passivated junction, MSL Level 1 reflow compatibility, and operation from –55 °C to +150 °C-meets stringent requirements for engine control, body electronics, and ADAS sensor interfaces per the Vishay SMCG family documentation.
Does SMCG54CA-E3/57T have polarity markings?
No, SMCG54CA-E3/57T has no polarity marking because it is a bidirectional TVS diode. The device provides symmetrical clamping in both directions, and the SMCG (DO-215AB) package uses unmarked gull-wing leads-confirmed in the Vishay mechanical drawings and ordering information table for CA-suffix variants.
What is the thermal resistance from junction to ambient for SMCG54CA-E3/57T?
The typical junction-to-ambient thermal resistance (RθJA) for SMCG54CA-E3/57T is 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in the Vishay datasheet. This value assumes standard JEDEC test conditions and is critical for calculating steady-state temperature rise under continuous power dissipation.
Can SMCG54CA-E3/57T replace unidirectional TVS diodes like SMCG54A?
No-SMCG54CA-E3/57T is strictly bidirectional and cannot substitute for unidirectional types such as SMCG54A in DC-biased circuits. While both share VWM = 54 V and PPPM = 1500 W, SMCG54A conducts only in reverse bias and requires cathode orientation; using SMCG54CA-E3/57T there would eliminate polarity-dependent blocking and risk forward conduction faults.
SMCG54CA-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):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87.1V
- Current - Peak Pulse (10/1000µs):
- 17.2A
- 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)
SMCG54CA-E3/57T FAQ
1.How can I place an order for SMCG54CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG54CA-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 SMCG54CA-E3/57T reliable?
The price and inventory of SMCG54CA-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 SMCG54CA-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG54CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG54CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG54CA-E3/57T?
SMCG54CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG54CA-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 SMCG54CA-E3/57T?
For technical support, including SMCG54CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG54CA-E3/57T requirements.
6.How does Aetrix verify that SMCG54CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG54CA-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 SMCG54CA-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG54CA-E3/57T?
All SMCG54CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG54CA-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 SMCG54CA-E3/57T part is unused and in its original packaging.
Return procedure for SMCG54CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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