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Vishay General Semiconductor - Diodes Division SMCG58CAHE3/9AT
- Part No.:
- SMCG58CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG58CAHE3/9AT.pdf
- Description:
- TVS DIODE 58VWM 93VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,019
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Product details
Overview
SMCG58CAHE3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for high-energy surge protection on signal and power lines. It features a 58 V stand-off voltage (VWM), 64.4–71.2 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), clamping voltage of 93 V at 16 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCG58CAHE3/9AT datasheet, SMCG58CAHE3/9AT pinout, SMCG58CAHE3/9AT application, or SMCG58CAHE3/9AT equivalent, this device is selected for robust ESD and lightning surge protection in automotive sensor interfaces, industrial I/O modules, and telecom line cards where bidirectional clamping, low leakage (<1 µA at VWM), and MSL Level 1 reflow compatibility are critical.
Technical Context
The SMCG58CAHE3/9AT operates as a bidirectional avalanche diode, symmetrically clamping voltage transients above ±64.4 V in either polarity. Its glass-passivated junction ensures stable VBR tolerance and long-term reliability under repetitive surge stress.
Designed for surface-mount assembly on 8.0 mm × 8.0 mm copper pads, it delivers 1500 W peak pulse power with a thermal resistance of 75 °C/W (junction-to-ambient) and supports operating junction temperatures from –55 °C to +150 °C - enabling deployment in under-hood automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 48 V nominal systems. |
| VBR (min/max) | 64.4 V / 71.2 V at 1 mA - tight breakdown range ensures predictable turn-on across temperature and production lot. |
| VC @ IPPM | 93 V at 16 A - clamping voltage limits downstream IC stress during 10/1000 µs surges per IEC 61000-4-5. |
| PPPM | 1500 W - peak pulse power rating enables protection against severe transients like ISO 7637-2 Pulse 5a. |
| ID @ VWM | <1 µA - ultra-low leakage preserves signal integrity and battery life in always-on sensor circuits. |
| TJ max. | +150 °C - extended junction temperature rating supports placement near heat sources in engine control units. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing. |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, gull-wing surface-mount package with matte tin-plated leads; meets UL 94 V-0, J-STD-002 solderability, and JESD 201 Class 2 whisker resistance. Bidirectional devices have no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | One terminal of symmetrical avalanche junction; conducts when voltage exceeds +VBR relative to cathode. |
| Cathode | Transient current entry (negative half-cycle) | Second terminal of symmetrical junction; conducts when voltage exceeds –VBR relative to anode - functionally identical to anode in bidirectional mode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating differential lines without polarity concerns. |
| Glass-passivated junction | Ensures stable VBR drift <±5% over 1000 hrs HTOL and immunity to humidity-induced parameter shift. |
| MSL Level 1 rating | Allows unlimited floor life and reflow up to 260 °C peak without baking - simplifies SMT line integration. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD >15 kV contact discharge). |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, chassis, and ADAS subsystems per stress test requirements. |
Applications
| Automotive Sensor Interface | Industrial Fieldbus Protection |
|---|---|
Use Scenario: Protecting CAN FD or LIN bus transceivers from load dump and inductive switching spikes in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pair or supply rail to clamp transients before they reach PHY layer. Use Value: Withstands 1500 W surges while maintaining <1 µA leakage at 58 V, preserving bus bias stability and minimizing false triggering. | Use Scenario: Safeguarding RS-485 transceivers on factory automation PLC I/O cards exposed to motor drive noise and ground bounce. IC Role / Device Role / Timing Role: Line-side TVS connected between A/B lines and ground to shunt common-mode surges induced by nearby VFDs. Use Value: 93 V clamping voltage ensures protected transceiver remains within absolute maximum ratings during 4 kV EFT bursts per IEC 61000-4-4. |
| Telecom DSL Line Card | Consumer Appliance Motor Control |
Use Scenario: Front-end surge protection for ADSL/VDSL line drivers subjected to lightning-induced longitudinal surges on twisted-pair copper loops. IC Role / Device Role / Timing Role: Bidirectional TVS mounted across tip/ring to suppress common-mode transients while preserving DC bias integrity. Use Value: Symmetrical 64.4–71.2 V VBR and 1500 W PPPM meet GR-1089-CORE Level 3 requirements for central office equipment. | Use Scenario: Overvoltage suppression on microcontroller GPIOs driving brushed DC motors in smart home appliances. IC Role / Device Role / Timing Role: Local TVS placed at motor driver output to absorb back-EMF spikes during PWM commutation. Use Value: Fast response time and low clamping voltage (93 V) prevent MCU latch-up or I/O damage during 200 A inductive turn-off events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58A-E3/57T | Unidirectional; same VWM/VBR/PPPM but lacks bidirectional symmetry and AEC-Q101 qualification. | Requires external polarity management; not approved for automotive safety-critical nodes. | Select only for cost-sensitive, non-automotive DC-biased lines where polarity is fixed and qualification is not required. |
| SMCJ58CA | Same bidirectional functionality and AEC-Q101 rating, but in larger DO-214AB (SMC) package with higher RθJA (50 °C/W vs. 75 °C/W). | Higher thermal mass allows greater single-pulse energy handling but requires more PCB area and has slower thermal response. | Prefer for high-repetition surge environments (e.g., industrial motor drives) where board space permits and lower thermal resistance is needed. |
Compared with SMAJ58A-E3/57T and SMCJ58CA, the SMCG58CAHE3/9AT uniquely combines bidirectional operation, AEC-Q101 qualification, and compact DO-215AB packaging - making it optimal for space-constrained automotive and industrial edge nodes requiring certified reliability without layout redesign.
Availability
SMCG58CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial fieldbus nodes, and telecom line card designs requiring stable component supply, AEC-Q101 compliance, and high-energy transient immunity.
Supply support for SMCG58CAHE3/9AT 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-power, low-inductance transient suppression in automotive, industrial, and telecom infrastructure where compact size and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SMCG58CAHE3/9AT at its rated peak pulse current?
The SMCG58CAHE3/9AT has a maximum clamping voltage (VC) of 93 V at 16 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures protected downstream circuitry remains within safe operating limits during surge events. The SMCG58CAHE3/9AT achieves this with low incremental surge resistance and symmetrical bidirectional conduction.
Is SMCG58CAHE3/9AT suitable for automotive applications?
Yes, SMCG58CAHE3/9AT is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junctions, MSL Level 1 reflow compatibility, and operation from –55 °C to +150 °C junction temperature - meeting requirements for engine control, body electronics, and ADAS subsystems. The "HE3" suffix denotes RoHS-compliant, AEC-Q101-qualified industrial grade, confirmed in Vishay document 88457.
How does the bidirectional design of SMCG58CAHE3/9AT affect its circuit implementation?
The bidirectional design of SMCG58CAHE3/9AT eliminates polarity marking and enables direct placement across AC-coupled or floating signal pairs (e.g., CAN, RS-485) without orientation constraints. Unlike unidirectional TVS diodes, SMCG58CAHE3/9AT clamps equally in both directions - simplifying layout, reducing BOM count, and avoiding misorientation risk during automated assembly. No external components are needed to achieve full-symmetry protection.
What is the thermal resistance of SMCG58CAHE3/9AT, and how does it impact PCB layout?
SMCG58CAHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay spec; reducing pad area increases RθJA and risks thermal runaway during repetitive surges. For high-duty-cycle applications, designers should maintain full pad dimensions and consider internal copper planes to sustain 6.5 W steady-state dissipation.
Does SMCG58CAHE3/9AT meet industry standards for surge immunity testing?
Yes, SMCG58CAHE3/9AT is characterized to meet key surge immunity standards including IEC 61000-4-5 (lightning surge, 10/1000 µs), IEC 61000-4-4 (EFT, 5/50 ns), and ISO 7637-2 (automotive transients). Its 1500 W PPPM rating and 93 V clamping voltage directly support Level 3 and Level 4 test compliance when applied with proper PCB layout - verified in Vishay's application notes and referenced in document 88457.
SMCG58CAHE3/9AT 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):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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)
SMCG58CAHE3/9AT FAQ
1.How can I place an order for SMCG58CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG58CAHE3/9AT 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 SMCG58CAHE3/9AT reliable?
The price and inventory of SMCG58CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG58CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG58CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG58CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG58CAHE3/9AT?
SMCG58CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG58CAHE3/9AT 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 SMCG58CAHE3/9AT?
For technical support, including SMCG58CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG58CAHE3/9AT requirements.
6.How does Aetrix verify that SMCG58CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG58CAHE3/9AT 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 SMCG58CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG58CAHE3/9AT?
All SMCG58CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG58CAHE3/9AT, 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 SMCG58CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG58CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG58CAHE3/9AT Tags
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