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Vishay General Semiconductor - Diodes Division SMCG58AHE3/9AT
- Part No.:
- SMCG58AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG58AHE3/9AT.pdf
- Description:
- TVS DIODE 58VWM 93VC DO215AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMCG58AHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, with 58 V standoff voltage (VWM), 64.4–71.2 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and 16.0 A peak pulse current (IPPM) at 10/1000 µs waveform. It protects MOSFETs, ICs, and sensor signal lines in automotive powertrain and industrial motor control circuits against inductive switching transients.
For engineers reviewing the SMCG58AHE3/9AT datasheet, SMCG58AHE3/9AT pinout, SMCG58AHE3/9AT application, or SMCG58AHE3/9AT equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, clamping performance at rated surge, thermal resistance (RθJA = 75 °C/W), and real-world use cases in automotive and industrial environments - all confirmed from Vishay's official 88457 document (Rev. 09-Jan-2024).
Technical Context
This device operates as a unidirectional clamping TVS diode, leveraging glass-passivated junction technology for fast response (<1 ns) and low incremental surge resistance. Its breakdown threshold is defined at 1 mA test current (IT), and clamping occurs at VC = 93 V under 16.0 A IPPM (10/1000 µs), ensuring predictable overvoltage protection during ESD or load-dump events.
Designed for surface-mount assembly on 8.0 mm × 8.0 mm copper pads per terminal, it meets MSL Level 1 (J-STD-020) with 260 °C lead-free reflow peak, and is qualified to AEC-Q101 for automotive under-hood applications. Polarity is marked by a cathode band; no marking applies to bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown |
| VBR min/max | 64.4 V / 71.2 V at IT = 1 mA - ensures reliable turn-on across manufacturing tolerance and temperature range |
| VC @ IPPM | 93 V at IPPM = 16.0 A (10/1000 µs) - clamping voltage limits downstream component stress during surge |
| PPPM | 1500 W - peak transient energy handling capability under standardized 10/1000 µs waveform |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance on recommended 8 mm × 8 mm pad layout; critical for thermal derating above 25 °C |
| IFSM | 200 A - non-repetitive forward surge rating (8.3 ms half-sine); supports unidirectional crowbar-style fault clearing |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD per AEC standard |
Pinout & Package
Package: SMCG (DO-215AB), surface-mount gull-wing configuration with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected circuit ground or low-side return path | Enables unidirectional clamping from line-to-ground; must be routed with low-inductance path to handle fast transients |
| Cathode | Current exit point in forward bias; marked by band; connects to protected line or signal trace | Defines polarity-sensitive placement; incorrect orientation disables protection and risks device failure |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to moisture-induced parameter drift in harsh environments |
| Low incremental surge resistance | Minimizes voltage overshoot during high-di/dt events, improving clamping precision for sensitive 5 V or 12 V logic interfaces |
| MSL Level 1 rating | Supports single-reflow assembly without baking; compatible with standard lead-free SMT processes up to 260 °C peak |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS modules requiring extended temperature (-55 °C to +150 °C) reliability |
| UL 94 V-0 molding compound | Provides flame-retardant housing essential for safety-critical industrial and transportation equipment compliance |
Applications
| Automotive Powertrain Control | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protecting gate drivers and microcontroller I/O pins in 12 V/24 V engine control units exposed to alternator load dump and inductive coil flyback. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between MCU GPIO and external connector, conducting only during overvoltage events. Use Value: Limits transient voltage to ≤93 V during 16 A surges, preventing latch-up or oxide breakdown in 3.3 V/5 V logic interfaces per ISO 7637-2 Pulse 5a. | Use Scenario: Shielding analog sensor inputs (e.g., current shunt monitors) and digital enable lines in variable-frequency drives subject to relay contact bounce and transformer switching noise. IC Role / Device Role / Timing Role: Line-to-ground transient suppressor mounted directly at PCB edge connectors, absorbing sub-microsecond spikes before reaching signal conditioning circuitry. Use Value: Achieves <1 ns response time and clamps 10/1000 µs surges to 93 V, preserving ±0.1% measurement accuracy in isolated current sensing paths. |
| Telecom Power Supply Input | Consumer Appliance Mainboard Surge Protection |
Use Scenario: Safeguarding primary-side controller ICs and optocoupler inputs in AC/DC adapters subjected to lightning-induced surges on mains input lines. IC Role / Device Role / Timing Role: Secondary-side TVS placed across DC bus rails after rectification, clamping voltage spikes generated by transformer leakage inductance. Use Value: Handles 1500 W peak pulse power without degradation, maintaining regulation integrity during EN 61000-4-5 Level 3 (2 kV) surges. | Use Scenario: Protecting microcontroller reset lines and communication buses (I²C, UART) in washing machine mainboards exposed to relay and solenoid coil transients. IC Role / Device Role / Timing Role: Localized clamping device adjacent to MCU pins, providing dedicated protection independent of bulk input filtering. Use Value: Delivers 93 V clamping at 16 A with RθJA = 75 °C/W, enabling operation up to +105 °C ambient in enclosed enclosures without thermal runaway. |
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 | Same VWM (58 V), lower PPPM (400 W), SMA (DO-214AC) package, RθJA = 110 °C/W | Lower power handling; suitable for consumer-grade, non-automotive designs with reduced surge exposure | Select when cost sensitivity outweighs automotive qualification and 1500 W surge margin is unnecessary |
| SMCJ58AHE3/9AT | Same VWM (58 V), identical PPPM (1500 W), but SMC (DO-214AB) package with higher RθJA (85 °C/W) and no AEC-Q101 listing | Lacks automotive qualification; used in industrial controls where AEC-Q101 is not mandated | Choose only if board space allows larger SMC footprint and AEC-Q101 compliance is not required |
Compared with SMCG58AHE3/9AT, SMAJ58A-E3/57T offers lower cost and smaller footprint but sacrifices 73% peak power handling and automotive qualification; SMCJ58AHE3/9AT matches power rating but lacks AEC-Q101 validation and has inferior thermal performance due to larger package thermal resistance.
Availability
SMCG58AHE3/9AT is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive I/O protection, and telecom power supply input applications requiring stable component supply, AEC-Q101 assurance, and 1500 W transient robustness.
Supply support for SMCG58AHE3/9AT 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCG series is engineered for high-power transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, low-profile DO-215AB packaging, and precise clamping performance for demanding 12 V/24 V systems.
FAQ
What is the clamping voltage of SMCG58AHE3/9AT at its rated peak pulse current?
The SMCG58AHE3/9AT has a maximum clamping voltage (VC) of 93 V when subjected to its rated peak pulse current (IPPM) of 16.0 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's Document Number 88457. The clamping behavior ensures downstream components remain within safe voltage limits during surge events. SMCG58AHE3/9AT maintains this performance across its qualified operating temperature range of –55 °C to +150 °C.
Is SMCG58AHE3/9AT qualified for automotive applications?
Yes, SMCG58AHE3/9AT is explicitly AEC-Q101 qualified, as stated in Vishay's official documentation (Document Number 88457, Rev. 09-Jan-2024). The "HE3" suffix denotes RoHS-compliant, AEC-Q101-qualified construction. It has passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101 requirements. SMCG58AHE3/9AT is intended for under-hood and chassis-mounted automotive systems where reliability under thermal and mechanical stress is mandatory.
What does the "9AT" suffix indicate in SMCG58AHE3/9AT?
"9AT" specifies the packaging format: 13-inch diameter plastic tape and reel, containing 3500 units per reel. This differs from "57T", which denotes a 7-inch reel with 850 units. The "9AT" variant supports high-volume automated SMT assembly and aligns with industry-standard logistics for large-batch production. SMCG58AHE3/9AT uses the same die, electrical specs, and qualification as other HE3-suffix variants - only the reel size and quantity differ.
How does the thermal resistance of SMCG58AHE3/9AT affect its derating in real designs?
SMCG58AHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. At ambient temperatures above 25 °C, its peak pulse power must be linearly derated per Figure 2 in Document 88457 - e.g., at 70 °C TA, PPPM drops to ~1050 W. Proper pad layout is essential; reducing copper area increases RθJA and accelerates thermal saturation. SMCG58AHE3/9AT's low RθJA enables sustained operation in compact, thermally constrained automotive modules.
Can SMCG58AHE3/9AT be used in bidirectional configurations?
No, SMCG58AHE3/9AT is a unidirectional TVS diode, indicated by the "A" (not "CA") suffix in its base part number. Bidirectional versions use the "CA" suffix (e.g., SMCG58CA), which exhibit symmetrical breakdown in both polarities. Using SMCG58AHE3/9AT in reverse-biased AC signal paths would result in unintended conduction and potential failure. For bidirectional protection, select SMCG58CAHE3/9AT - a distinct, separately specified part with matched VBR in both directions and no cathode marking.
SMCG58AHE3/9AT 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:
- 1
- Bidirectional Channels:
- -
- 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)
SMCG58AHE3/9AT FAQ
1.How can I place an order for SMCG58AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG58AHE3/9AT 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 SMCG58AHE3/9AT reliable?
The price and inventory of SMCG58AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG58AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG58AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG58AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG58AHE3/9AT?
SMCG58AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG58AHE3/9AT 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 SMCG58AHE3/9AT?
For technical support, including SMCG58AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG58AHE3/9AT requirements.
6.How does Aetrix verify that SMCG58AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG58AHE3/9AT 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 SMCG58AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG58AHE3/9AT?
All SMCG58AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG58AHE3/9AT, 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 SMCG58AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG58AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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