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Vishay General Semiconductor - Diodes Division SMCG5.0CA-M3/9AT
- Part No.:
- SMCG5.0CA-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG5.0CA-M3/9AT.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,286
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Product details
Overview
SMCG5.0CA-M3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 5.0 V stand-off voltage (VWM), 6.40–7.25 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and clamps transients to ≤9.20 V at 163 A, making it suitable for automotive sensor line protection against inductive switching surges.
For engineers reviewing the SMCG5.0CA-M3/9AT datasheet, SMCG5.0CA-M3/9AT pinout, SMCG5.0CA-M3/9AT application, or SMCG5.0CA-M3/9AT equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance (M3 suffix), 1500 W surge rating, and DO-215AB thermal performance with RθJA = 75 °C/W.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping voltage transients in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1000 µA at VWM), while its low incremental surge resistance enables fast response to 10/1000 µs waveforms.
Designed for surface-mount automated placement, the SMCG5.0CA-M3/9AT meets MSL Level 1 per J-STD-020, supports peak junction temperatures up to +150 °C, and delivers 1500 W peak pulse power on standard 8.0 mm × 8.0 mm copper pads - critical for automotive and industrial systems requiring high-reliability transient suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 6.40 V / 7.25 V at 10 mA - guaranteed avalanche initiation range under standardized test conditions |
| VC @ IPPM | ≤9.20 V at 163 A - clamped voltage during 10/1000 µs surge, defining protected circuit's max stress level |
| PPPM | 1500 W - peak transient energy absorption capacity, enabling protection against severe load-dump or ESD events |
| Package | SMCG (DO-215AB) - low-profile SMD outline with 75 °C/W junction-to-ambient thermal resistance |
| Qualification | AEC-Q101 qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
| Compliance | Halogen-free, RoHS-compliant (M3 suffix), UL 497B recognized (QVGQ2) |
Pinout & Package
SMCG5.0CA-M3/9AT uses the SMCG (DO-215AB) surface-mount package: a dual-leaded, gull-wing configuration with no polarity marking for bidirectional operation. The case is molded with UL 94 V-0 rated compound, and terminals are matte tin-plated for solderability per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | One terminal of symmetrical avalanche junction; conducts when voltage exceeds VBR in either direction |
| Cathode | Transient current entry (negative half-cycle) | Second terminal of symmetrical junction; identical electrical role to Anode due to bidirectional design |
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 suitability for automotive applications including engine control, ADAS sensors, and infotainment interfaces |
| 1500 W peak pulse rating | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-line) with margin |
| Low clamping voltage (≤9.20 V) | Protects 5 V logic interfaces (e.g., CAN, LIN, sensor analog outputs) without exceeding IC absolute maximum ratings |
| Halogen-free & RoHS (M3) | Meets global environmental compliance requirements for industrial and automotive OEM supply chains |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine bays exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS clamp limiting transient voltage to ≤9.20 V during 10/1000 µs surges. Use Value: Prevents latch-up or permanent damage to 5 V sensor signal conditioning ICs while maintaining signal integrity below 5.0 V stand-off. | Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from inductive kickback of solenoid valves and contactors. IC Role / Device Role / Timing Role: Fast-response transient suppressor absorbing up to 1500 W surge energy without degradation. Use Value: Eliminates need for external series impedance or RC snubbers, reducing BOM count and PCB footprint in DIN-rail mounted controllers. |
| Telecom Line Interface | Consumer USB Port ESD Protection |
Use Scenario: Safeguarding RS-485 transceivers in base station backhaul links subjected to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Symmetrical clamping element placed across differential pair to limit common-mode transients. Use Value: Maintains signal integrity by clamping only above 6.40 V while exhibiting <1000 µA leakage at 5.0 V, minimizing quiescent power loss. | Use Scenario: Adding secondary-level surge protection to USB 2.0 data lines in smart home hubs where primary TVS may be undersized. IC Role / Device Role / Timing Role: Low-capacitance bidirectional suppressor (typ. CJ < 100 pF at 0 V) preserving signal rise time. Use Value: Enables full-speed USB signaling (480 Mbps) while meeting IEC 61000-4-2 ±15 kV contact discharge immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | Unidirectional; lower PPPM (400 W); SMA package (higher RθJA ≈ 110 °C/W) | Requires polarity-aware layout; unsuitable for AC or floating lines without external biasing | Select when cost sensitivity outweighs bidirectionality and surge margin, and polarity is fixed |
| SMCJ5.0CA | Same bidirectional function; higher PPPM (1500 W); larger SMC (DO-214AB) package (RθJA ≈ 40 °C/W) | Offers superior thermal dissipation but requires ~3× PCB area vs. SMCG | Prefer for high-temperature environments (>105 °C ambient) where junction heating must be minimized |
Compared with SMAJ5.0A and SMCJ5.0CA, the SMCG5.0CA-M3/9AT uniquely balances AEC-Q101 qualification, halogen-free compliance, compact DO-215AB footprint, and 1500 W surge capability - making it optimal for space-constrained automotive and industrial modules where bidirectional protection and regulatory alignment are mandatory.
Availability
SMCG5.0CA-M3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line drivers, and consumer USB port protection requiring stable component supply and full traceability.
Supply support for SMCG5.0CA-M3/9AT 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 is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and communications systems where AEC-Q101 validation and compact thermal performance are essential.
FAQ
What does the "CA" suffix indicate in SMCG5.0CA-M3/9AT?
The "CA" suffix denotes a bidirectional configuration - meaning the SMCG5.0CA-M3/9AT functions identically in both polarities, with no cathode band marking and symmetric breakdown (6.40–7.25 V) and clamping (≤9.20 V) characteristics. This distinguishes it from unidirectional variants like SMCG5.0A, which require correct polarity orientation during placement and exhibit forward conduction behavior.
Is SMCG5.0CA-M3/9AT qualified for automotive use?
Yes, the SMCG5.0CA-M3/9AT is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and unbiased highly accelerated stress testing (uHAST). Its qualification applies specifically to the HM3 and HE3 variants; however, the M3 suffix confirms halogen-free RoHS compliance aligned with automotive supply chain requirements, and Vishay explicitly lists SMCG5.0CA among AEC-Q101–qualified devices in the datasheet notes.
What is the maximum clamping voltage of SMCG5.0CA-M3/9AT under surge conditions?
The maximum clamping voltage (VC) of SMCG5.0CA-M3/9AT is 9.20 V, measured at the peak pulse current (IPPM) of 163 A using a 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events and is guaranteed across the full operating temperature range (−55 °C to +150 °C).
How does the SMCG (DO-215AB) package compare thermally to SMA or SMC packages?
The SMCG (DO-215AB) package offers a junction-to-ambient thermal resistance (RθJA) of 75 °C/W on standard 8.0 mm × 8.0 mm copper pads - significantly better than SMA (≈110 °C/W) but less efficient than SMC (≈40 °C/W). This makes SMCG5.0CA-M3/9AT suitable for moderate-power surge applications where board space is constrained but thermal management remains critical, such as in dense automotive ECUs.
Does SMCG5.0CA-M3/9AT meet UL recognition requirements?
Yes, SMCG5.0CA-M3/9AT is Underwriters Laboratories (UL) recognized under standard UL 497B for protectors, with file number E136766. This certification covers both unidirectional and bidirectional configurations and validates its safety performance in telecommunications and industrial equipment, supporting compliance with end-equipment safety certifications.
SMCG5.0CA-M3/9AT 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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 163A
- 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)
SMCG5.0CA-M3/9AT FAQ
1.How can I place an order for SMCG5.0CA-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG5.0CA-M3/9AT 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 SMCG5.0CA-M3/9AT reliable?
The price and inventory of SMCG5.0CA-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG5.0CA-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG5.0CA-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG5.0CA-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG5.0CA-M3/9AT?
SMCG5.0CA-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG5.0CA-M3/9AT 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 SMCG5.0CA-M3/9AT?
For technical support, including SMCG5.0CA-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG5.0CA-M3/9AT requirements.
6.How does Aetrix verify that SMCG5.0CA-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG5.0CA-M3/9AT 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 SMCG5.0CA-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG5.0CA-M3/9AT?
All SMCG5.0CA-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG5.0CA-M3/9AT, 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 SMCG5.0CA-M3/9AT part is unused and in its original packaging.
Return procedure for SMCG5.0CA-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG5.0CA-M3/9AT Tags
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