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Vishay General Semiconductor - Diodes Division SMCG10AHE3/9AT
- Part No.:
- SMCG10AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG10AHE3/9AT.pdf
- Description:
- TVS DIODE 10VWM 17VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,924
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Product details
Overview
SMCG10AHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (PPPM), 88.2 A peak pulse current (IPPM), and clamps to ≤17.0 V at IPPM - ideal for protecting MOSFETs, ICs, and sensor signal lines in automotive and industrial power rails.
For engineers reviewing the SMCG10AHE3/9AT datasheet, SMCG10AHE3/9AT pinout, SMCG10AHE3/9AT application, or SMCG10AHE3/9AT equivalent, this AEC-Q101 qualified TVS offers verified bidirectional-capable family compatibility, low clamping ratio (VC/VBR ≈ 1.5), RoHS-compliant matte tin terminations, and MSL Level 1 reflow capability up to 260 °C - critical for high-reliability automotive ECU and ADAS power interface design.
Technical Context
This device operates as a unidirectional avalanche diode with glass-passivated junction, delivering fast response (<1 ns) to transients such as load dump, inductive switching spikes, and ESD events. Its thermal resistance (RθJA = 75 °C/W) and junction temperature rating (TJ max = 150 °C) support sustained operation under repeated surge conditions when mounted on 8.0 mm × 8.0 mm copper pads.
The SMCG10AHE3/9AT uses a DO-215AB surface-mount package with cathode band marking, optimized for automated placement and compatible with J-STD-002 solderability standards. Its 1.0 μA maximum reverse leakage at VWM ensures minimal standby power loss in always-on circuits like CAN bus termination or microcontroller I/O protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for 12 V automotive systems. |
| VBR (min/max) | 11.1 V / 12.3 V at IT = 1 mA - tight breakdown tolerance ensures predictable turn-on across temperature and production lots. |
| VC @ IPPM | ≤17.0 V at 88.2 A (10/1000 μs) - low clamping voltage protects downstream 15 V-rated ICs without derating headroom. |
| PPPM | 1500 W - enables suppression of high-energy transients (e.g., ISO 7637-2 Pulse 5a) without failure. |
| ID @ VWM | ≤1.0 μA - negligible leakage preserves battery life in low-power sensor nodes and always-on wake-up circuits. |
| TJ max | +150 °C - supports under-hood automotive placement and extended industrial ambient temperature operation. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, gull-wing leaded case with 0.245" × 0.310" footprint, 0.058" lead width, and cathode band marking on unidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; forms clamping loop with cathode during transient events. |
| Cathode | High-side protected node | Connected to line being protected (e.g., 12 V rail); marked by visible band; conducts avalanche current to anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns - eliminates baking requirement for production. |
| Low incremental surge resistance | Minimizes VC rise under high di/dt surges, improving clamping consistency for fast-rising transients like EFT. |
| Matte tin plated leads | Guarantees solder joint reliability per J-STD-002 and whisker resistance per JESD 201 Class 2. |
| RoHS + AEC-Q101 HE3 suffix | Confirms automotive qualification and full compliance with EU RoHS Directive 2011/65/EU and material declarations. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Guarding |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs in engine control units (ECUs) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy to ground before it reaches LDO regulators or MCU power pins. Use Value: Withstands 1500 W pulses and maintains ≤17.0 V clamping, preventing latch-up or permanent damage to 15 V-tolerant power management ICs. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Fast-response (sub-ns) voltage clamp placed directly at connector entry point to shunt transients before reaching op-amp input stages. Use Value: 1.0 μA leakage at 10 V VWM avoids measurement offset errors; DO-215AB footprint allows compact PCB layout near I/O connectors. |
| Telecom DC Power Interface | Consumer Device USB Port Surge Suppression |
|
Use Scenario: Safeguarding PoE-powered equipment (e.g., IP cameras) from induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary front-end TVS in multi-stage protection scheme, absorbing bulk surge energy before secondary polymer PTC or GDT stages. Use Value: 88.2 A IPPM handles IEEE 802.3bt-compliant surge tests; AEC-Q101 qualification adds confidence in long-term field reliability. |
Use Scenario: Adding transient immunity to USB Type-C VBUS lines in portable speakers or docking stations exposed to user-handling ESD. IC Role / Device Role / Timing Role: Unidirectional clamp between VBUS and chassis ground, activated only during overvoltage - no effect on normal 5 V operation. Use Value: 11.1–12.3 V VBR provides 2.3–3.3 V margin above 5 V nominal, while 17.0 V VC ensures USB PD controller ICs remain within absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A-E3/57T | Same VWM (10 V), lower PPPM (400 W), SMA (DO-214AC) package, RθJA = 110 °C/W. | Limited to lower-energy transients; less suitable for automotive load dump or industrial lightning-induced surges. | Select when cost or board space is prioritized over surge robustness; verify thermal margin with smaller pad area. |
| SMCJ10AHE3/9AT | Same VWM (10 V), higher PPPM (1500 W), identical DO-215AB package, but rated for 100 A IPPM and 17.0 V VC. | Offers same clamping performance but with broader industry adoption and longer production history. | Prefer for legacy design continuity or where second-source assurance is required; functionally interchangeable in most layouts. |
Compared with SMCG10AHE3/9AT, SMAJ10A-E3/57T trades surge capacity for smaller size and cost, while SMCJ10AHE3/9AT delivers identical electrical protection in a mature, widely stocked variant - making SMCG10AHE3/9AT optimal for new AEC-Q101–mandated designs requiring latest qualification status and thermal performance.
Availability
SMCG10AHE3/9AT is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor modules, telecom power interfaces, and consumer USB power delivery systems requiring stable component supply and long-term lifecycle support.
Supply support for SMCG10AHE3/9AT 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 high-reliability diodes, rectifiers, and protection devices for automotive, industrial, and computing markets.
The SMCG series was developed specifically for AEC-Q101–compliant transient suppression in demanding automotive power domains, emphasizing low clamping ratio, high surge endurance, and robust manufacturability in surface-mount formats.
FAQ
What is the clamping voltage of SMCG10AHE3/9AT at its rated peak pulse current?
The SMCG10AHE3/9AT clamps to a maximum of 17.0 V when subjected to its rated 88.2 A peak pulse current (10/1000 μs waveform). This value is measured under standardized test conditions with 8.0 mm × 8.0 mm copper pads per terminal and represents the upper limit of voltage seen by protected circuitry during worst-case transient events - a key parameter for ensuring downstream ICs remain within their absolute maximum voltage ratings.
Is SMCG10AHE3/9AT suitable for bidirectional transient protection?
No - SMCG10AHE3/9AT is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay specifies the "CA" suffix (e.g., SMCG10CA). Using SMCG10AHE3/9AT in AC-coupled or symmetrical signal paths would result in forward conduction during negative half-cycles, potentially damaging the device or circuit.
Does SMCG10AHE3/9AT require derating at elevated ambient temperatures?
Yes - the SMCG10AHE3/9AT must be derated above TA = 25 °C per Figure 2 in the Vishay datasheet (Document Number: 88457). At 85 °C ambient, its peak pulse power drops to approximately 750 W (50 % of 1500 W), and at 125 °C, it falls to ~375 W. Designers must apply this derating when sizing for under-hood or enclosed industrial environments.
What does the "HE3" suffix signify in SMCG10AHE3/9AT?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification - confirming that SMCG10AHE3/9AT meets automotive reliability standards including temperature cycling, highly accelerated life testing (HALT), and ESD robustness, while also complying with EU Directive 2011/65/EU for hazardous substances. It replaces older "E3" industrial-grade variants in automotive applications.
Can SMCG10AHE3/9AT be used in place of SMAJ10A in an existing design?
Not without layout and thermal review - although both have 10 V VWM, SMCG10AHE3/9AT uses the larger DO-215AB (SMCG) package versus SMAJ's DO-214AC (SMA), resulting in different pad dimensions, thermal resistance (75 vs. 110 °C/W), and surge handling. Direct substitution may cause overheating or insufficient clamping margin; redesign of mounting pads and verification of transient response is required.
SMCG10AHE3/9AT 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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 88.2A
- 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)
SMCG10AHE3/9AT FAQ
1.How can I place an order for SMCG10AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG10AHE3/9AT 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 SMCG10AHE3/9AT reliable?
The price and inventory of SMCG10AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG10AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG10AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG10AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG10AHE3/9AT?
SMCG10AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG10AHE3/9AT 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 SMCG10AHE3/9AT?
For technical support, including SMCG10AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG10AHE3/9AT requirements.
6.How does Aetrix verify that SMCG10AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG10AHE3/9AT 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 SMCG10AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG10AHE3/9AT?
All SMCG10AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG10AHE3/9AT, 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 SMCG10AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG10AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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