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Vishay General Semiconductor - Diodes Division SMCG110HE3/9AT
- Part No.:
- SMCG110HE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG110HE3/9AT.pdf
- Description:
- TVS DIODE 110VWM 196VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,386
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Product details
Overview
SMCG110HE3/9AT from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) in DO-215AB (SMCG) package, rated for 110 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), and clamping voltage of 177 V at 8.5 A peak pulse current (IPPM). It is AEC-Q101 qualified and designed for automotive-grade surge protection on signal or power lines.
For engineers reviewing the SMCG110HE3/9AT datasheet, SMCG110HE3/9AT pinout, SMCG110HE3/9AT application, or SMCG110HE3/9AT equivalent, this device is selected for high-energy transients in automotive ECUs, industrial sensor interfaces, and telecom line protection where bidirectional clamping, low clamping ratio, and MSL Level 1 reflow compatibility are critical.
Technical Context
This bi-directional TVS diode operates symmetrically across both polarities, with breakdown voltage (VBR) min/max of 122 V / 135 V at 1 mA test current, and maximum reverse leakage (ID) of 1.0 µA at VWM. Its clamping behavior is defined under standardized 10/1000 µs waveform per ANSI/IEEE C62.35.
Thermal performance is characterized by junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead (RθJL) of 15 °C/W. The device sustains operation from –55 °C to +150 °C and meets JESD 201 Class 2 whisker resistance due to HE3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 122 V / 135 V at 1 mA - Ensures reliable breakdown onset within tight tolerance band |
| VC @ IPPM | 177 V at 8.5 A - Clamping voltage during 10/1000 µs surge defines protected circuit voltage ceiling |
| PPPM | 1500 W - Peak energy-handling capability determines survivability against lightning or ESD-like surges |
| ID @ VWM | ≤1.0 µA - Ultra-low leakage preserves signal integrity in high-impedance sensing paths |
| TJ max. | +150 °C - Enables placement near heat sources in engine control or powertrain modules |
| MSL Level | Level 1 (260 °C peak) - Supports standard lead-free reflow without preconditioning |
Pinout & Package
DO-215AB (SMCG) surface-mount package with gull-wing leads; no polarity marking for bi-directional configuration; matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional distinction between terminals - identical clamping in either polarity |
| Case (exposed metal) | Thermal and mechanical interface | Not electrically connected; provides thermal path to PCB copper pads (8.0 mm × 8.0 mm recommended) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood applications including temperature cycling, humidity bias, and mechanical shock |
| Glass passivated junction | Enhances long-term reliability and stability of breakdown voltage under repeated surge stress |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a) |
| MSL Level 1 rating | Enables direct placement into high-volume SMT lines without dry-pack or baking requirements |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed automotive and industrial enclosures |
Applications
| Automotive Engine Control Unit (ECU) | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protection of 5 V or 12 V sensor supply lines and microcontroller I/O pins against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed directly at connector entry point to limit transient excursions below IC absolute maximum ratings. Use Value: With 177 V clamping at 8.5 A and 110 V stand-off, SMCG110HE3/9AT prevents latch-up or gate oxide damage in downstream MCU and analog front-end ICs. |
Use Scenario: Surge suppression on differential CAN_H/CAN_L lines exposed to ESD and coupled noise in factory automation networks. IC Role / Device Role / Timing Role: Bidirectional TVS pair (one per line) referenced to common ground, absorbing common-mode and differential transients. Use Value: Low 1.0 µA leakage and symmetrical clamping ensure minimal impact on CAN bus signal integrity and bit timing margins. |
| Telecom Base Station Power Input | Consumer Smart Meter Sensor Interface |
Use Scenario: Secondary-level protection on 48 V DC input rails after primary MOV or gas discharge tube stages. IC Role / Device Role / Timing Role: Fast-response secondary clamp limiting residual surge energy reaching DC/DC converters and PMICs. Use Value: 1500 W PPPM and 75 °C/W RθJA allow sustained operation under repeated telecom-grade surges (IEC 61000-4-5 Level 4). |
Use Scenario: Protection of isolated RS-485 or current-loop (4–20 mA) sensor inputs in utility meters subjected to field ESD and induced surges. IC Role / Device Role / Timing Role: Bi-directional TVS placed across differential input terminals to shunt transients before isolation barrier. Use Value: 122–135 V VBR range ensures precise triggering above normal operating voltage while maintaining margin below isolator withstand rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ110AHE3/57T | DO-214AC (SMA) package; same VWM (110 V), lower PPPM (400 W), higher VC (183 V at 2.2 A) | Limited to lower-energy transients; less suitable for automotive load dump or telecom surges | Select when board space allows larger footprint and surge energy is ≤400 W |
| 1.5KE110CA | DO-201AE (Axial) through-hole; same VWM/VC specs but 1500 W PPPM; no AEC-Q101 qualification | Not suitable for automated SMT production or automotive qualification requirements | Choose only for legacy through-hole designs or non-automotive industrial use |
Compared with SMAJ110AHE3/57T and 1.5KE110CA, SMCG110HE3/9AT delivers identical 110 V stand-off and 1500 W surge rating in a compact, AEC-Q101-qualified surface-mount package optimized for high-reliability automotive and industrial SMT assembly - making it the preferred choice where qualification, footprint, and energy handling are jointly constrained.
Availability
SMCG110HE3/9AT is available at Aetrix Electronics and suitable for automotive ECU design, industrial CAN bus protection, and telecom power input staging requiring stable component supply and full traceability.
Supply support for SMCG110HE3/9AT 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, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade qualification.
The SMCG series was developed specifically for high-power, bi-directional transient suppression in space-constrained automotive and industrial applications - combining AEC-Q101 compliance, MSL Level 1 reflow readiness, and robust 1500 W surge capability in DO-215AB packaging.
FAQ
What is the clamping voltage of SMCG110HE3/9AT and how is it measured?
The SMCG110HE3/9AT has a maximum clamping voltage (VC) of 177 V, measured at 8.5 A peak pulse current (IPPM) under the standardized 10/1000 µs double-exponential waveform per ANSI/IEEE C62.35. This value is guaranteed across the full operating temperature range and reflects the voltage seen by downstream circuitry during surge events - critical for ensuring protected ICs remain within their absolute maximum ratings. The SMCG110HE3/9AT achieves this with low incremental surge resistance and symmetrical bi-directional structure.
Is SMCG110HE3/9AT suitable for automotive applications?
Yes, SMCG110HE3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including underhood environments. Its construction features glass-passivated junctions, JESD 201 Class 2 whisker resistance (HE3 suffix), MSL Level 1 reflow compatibility, and operational junction temperature up to +150 °C. These attributes make SMCG110HE3/9AT appropriate for engine control units, body electronics, and ADAS sensor interfaces where reliability under thermal and electrical stress is mandatory.
What does the "HE3" suffix mean in SMCG110HE3/9AT?
The "HE3" suffix in SMCG110HE3/9AT indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Unlike base "E3" parts (Class 1A), HE3 devices undergo enhanced plating process validation for long-term reliability in high-vibration, high-temperature automotive applications. The "9AT" denotes 13-inch tape-and-reel packaging with 3500 units per reel - optimized for high-volume SMT placement.
How does SMCG110HE3/9AT differ from uni-directional variants like SMCG110A?
SMCG110HE3/9AT is bi-directional (CA suffix implied by HE3 designation in this family), meaning it clamps symmetrically for both positive and negative transients with no polarity marking. In contrast, SMCG110A is uni-directional, featuring a cathode band and conducting only in reverse bias - requiring correct orientation during placement. Both share identical VWM (110 V) and PPPM (1500 W), but SMCG110HE3/9AT eliminates orientation risk and simplifies layout for AC-coupled or floating lines where polarity is undefined.
What PCB pad layout is recommended for optimal thermal and electrical performance of SMCG110HE3/9AT?
Vishay specifies a minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad area per terminal for SMCG110HE3/9AT to achieve rated 1500 W PPPM and 75 °C/W RθJA. These pads must be connected to internal ground or power planes via multiple thermal vias. Deviating from this layout reduces surge current handling and increases junction temperature - potentially derating IPPM and accelerating degradation. The SMCG110HE3/9AT datasheet Figure 2 provides exact mounting dimensions and thermal derating curves.
SMCG110HE3/9AT 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 196V
- Current - Peak Pulse (10/1000µs):
- 7.7A
- 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)
SMCG110HE3/9AT FAQ
1.How can I place an order for SMCG110HE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG110HE3/9AT 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 SMCG110HE3/9AT reliable?
The price and inventory of SMCG110HE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG110HE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG110HE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG110HE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG110HE3/9AT?
SMCG110HE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG110HE3/9AT 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 SMCG110HE3/9AT?
For technical support, including SMCG110HE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG110HE3/9AT requirements.
6.How does Aetrix verify that SMCG110HE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG110HE3/9AT 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 SMCG110HE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG110HE3/9AT?
All SMCG110HE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG110HE3/9AT, 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 SMCG110HE3/9AT part is unused and in its original packaging.
Return procedure for SMCG110HE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG110HE3/9AT Tags
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