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Vishay General Semiconductor - Diodes Division SMCG54CAHE3/57T
- Part No.:
- SMCG54CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG54CAHE3/57T.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,626
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Product details
Overview
SMCG54CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount package, designed for clamping voltage transients on signal and power lines. It features a 54 V stand-off voltage (VWM), 60.0–66.3 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and clamps to ≤87.1 V at 17.2 A IPPM under 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCG54CAHE3/57T datasheet, SMCG54CAHE3/57T pinout, SMCG54CAHE3/57T application, or SMCG54CAHE3/57T equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-215AB mechanical data, clamping performance at rated surge current, and bidirectional TVS selection guidance for ESD and load-dump hardened designs.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical VBR min/max (60.0 V / 66.3 V), ID ≤1.0 μA at VWM, and VC = 87.1 V at IPPM = 17.2 A (10/1000 μs). Its glass-passivated junction ensures stable leakage and fast response (<1 ns), while the SMCG package supports automated placement and meets MSL level 1 (260 °C reflow).
Thermal resistance is RθJA = 75 °C/W and RθJL = 15 °C/W, enabling operation from –55 °C to +150 °C junction temperature. It is AEC-Q101 qualified and UL recognized (QVGQ2, file E136766) for automotive-grade reliability in harsh environments.
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 at IT = 1 mA - defines reliable breakdown onset window for bidirectional surge conduction |
| VC @ IPPM | 87.1 V at 17.2 A - clamped voltage during 10/1000 μs surge, limiting downstream IC stress |
| PPPM | 1500 W - peak transient energy handling capability under standardized surge waveform |
| ID @ VWM | ≤1.0 μA - ultra-low leakage preserves signal integrity in high-impedance sensor lines |
| TJ max. | +150 °C - enables use in under-hood automotive and industrial motor-control enclosures |
| AEC-Q101 | Qualified - validated for automotive electronics per stress-test requirements (HTOL, TC, HAST, etc.) |
Pinout & Package
SMCG54CAHE3/57T uses the SMCG (DO-215AB) surface-mount package: low-profile, gull-wing leads, matte tin-plated terminals solderable per J-STD-002/JESD 22-B102, UL 94 V-0 molding compound, and no polarity marking (bidirectional device).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge conduction path | No polarity - either terminal serves as anode or cathode depending on transient polarity; no band marking required |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validates robustness for automotive applications including engine control, ADAS sensors, and body electronics |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for 3.3 V/5 V logic |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without preconditioning |
| Glass-passivated junction | Ensures stable VBR and low leakage over temperature and lifetime vs. epoxy-passivated alternatives |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
|
Use Scenario: Protecting CAN FD and LIN bus transceivers from ISO 7637-2 load dump and ISO 16750-2 jump-start surges. IC Role / Device Role / Timing Role: Bidirectional TVS placed at connector interface to clamp ±100 V transients before reaching PHY layer. Use Value: Limits clamped voltage to 87.1 V, preserving transceiver integrity under 17.2 A surge current without derating. |
Use Scenario: Safeguarding PLC analog input channels (4–20 mA, 0–10 V) against field-wiring induced transients. IC Role / Device Role / Timing Role: Front-end transient suppressor on signal conditioning PCB, upstream of precision op-amps and ADCs. Use Value: Ultra-low 1.0 μA leakage avoids gain error in high-impedance measurement paths at full temperature range. |
| Consumer Power Adapter Interface | Telecom Line Card Surge Protection |
|
Use Scenario: Input-stage protection for USB-C PD controllers and buck converters exposed to AC adapter plug/unplug events. IC Role / Device Role / Timing Role: Primary clamping device across DC input rails, coordinated with fuse and common-mode choke. Use Value: 1500 W PPPM handles repetitive 10/1000 μs surges per IEC 61000-4-5 Level 4 without degradation. |
Use Scenario: Secondary protection on Ethernet PHY side of PoE-powered devices subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamp on differential pairs, complementing gas discharge tube primary protection. Use Value: Symmetric VBR (60.0–66.3 V) ensures balanced clamping on both line polarities, maintaining signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ54CA | Same VWM (54 V) and PPPM (1500 W), but SMA (DO-214AC) package - larger footprint, higher RθJA (95 °C/W) | Limited to non-AEC-Q101 industrial use; not qualified for automotive under-hood deployment | Select when board space allows larger package and AEC-Q101 is not required |
| SMCJ54CA | Higher PPPM (3000 W), same VWM and DO-214AB package - larger body, higher thermal mass, RθJA = 50 °C/W | Suitable for higher-energy transients (e.g., ISO 7637-2 Pulse 5a), but requires more PCB area and cost | Select when surge energy exceeds 1500 W or extended thermal margin is needed |
Compared with SMAJ54CA and SMCJ54CA, SMCG54CAHE3/57T delivers AEC-Q101 qualification and optimized thermal resistance (RθJA = 75 °C/W) in the smallest DO-215AB footprint - ideal for space-constrained automotive modules where qualification and thermal efficiency are jointly critical.
Availability
SMCG54CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line-card surge suppression requiring stable component supply, AEC-Q101 compliance, and consistent DO-215AB packaging.
Supply support for SMCG54CAHE3/57T 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, automotive qualification, and high-volume manufacturability.
The SMCG series targets compact, high-reliability transient suppression in automotive and industrial systems - engineered for AEC-Q101 compliance, low-profile SMT assembly, and stable clamping performance across temperature and life cycle.
FAQ
What is the clamping voltage of SMCG54CAHE3/57T at its rated peak pulse current?
The SMCG54CAHE3/57T clamps to a maximum of 87.1 V at its specified peak pulse current (IPPM) of 17.2 A under the standard 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 circuitry.
Is SMCG54CAHE3/57T qualified for automotive applications?
Yes, SMCG54CAHE3/57T is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet (Document Number: 88457, Revision: 09-Jan-2024). The HE3 suffix denotes RoHS compliance and AEC-Q101 qualification, making it suitable for automotive subsystems including engine control units, ADAS sensors, and body electronics.
Does SMCG54CAHE3/57T have polarity markings on the package?
No, SMCG54CAHE3/57T does not have polarity markings because it is a bidirectional TVS diode. As confirmed in the Vishay datasheet, "no marking on bidirectional types" - both terminals are functionally identical, allowing symmetrical placement on PCBs without orientation constraints.
What is the thermal resistance junction-to-ambient for SMCG54CAHE3/57T?
The typical thermal resistance junction-to-ambient (RθJA) for SMCG54CAHE3/57T is 75 °C/W, measured on the minimum recommended pad layout (0.31" × 0.31" copper pads per terminal). This value supports thermal design in compact automotive and industrial modules where airflow is limited.
How does the SMCG54CAHE3/57T differ from unidirectional variants like SMCG54AHE3/57T?
SMCG54CAHE3/57T is bidirectional (CA suffix) with symmetric breakdown and clamping behavior in both directions, while SMCG54AHE3/57T is unidirectional (A suffix) and features a cathode band marking. The bidirectional version eliminates polarity concerns in AC or floating circuits, whereas the unidirectional variant offers lower forward voltage (VF = 3.5 V at 100 A) for DC rail protection.
SMCG54CAHE3/57T 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG54CAHE3/57T FAQ
1.How can I place an order for SMCG54CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG54CAHE3/57T 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 SMCG54CAHE3/57T reliable?
The price and inventory of SMCG54CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG54CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG54CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG54CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG54CAHE3/57T?
SMCG54CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG54CAHE3/57T 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 SMCG54CAHE3/57T?
For technical support, including SMCG54CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG54CAHE3/57T requirements.
6.How does Aetrix verify that SMCG54CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG54CAHE3/57T 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 SMCG54CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG54CAHE3/57T?
All SMCG54CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG54CAHE3/57T, 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 SMCG54CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCG54CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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