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Vishay General Semiconductor - Diodes Division SMCG110CAHE3/9AT
- Part No.:
- SMCG110CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG110CAHE3/9AT.pdf
- Description:
- TVS DIODE 110VWM 177VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,712
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Product details
Overview
SMCG110CAHE3/9AT 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 110 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), clamping voltage of 177 V at 8.5 A IPPM, and AEC-Q101 qualification for automotive electronics.
For engineers reviewing the SMCG110CAHE3/9AT datasheet, SMCG110CAHE3/9AT pinout, SMCG110CAHE3/9AT application, or SMCG110CAHE3/9AT equivalent, key selection criteria include bidirectional clamping performance, 177 V VC under 10/1000 µs surge, MSL Level 1 reflow compatibility, and RoHS-compliant AEC-Q101 qualification for harsh-environment deployment.
Technical Context
This device operates as a voltage-clamped crowbar during transients, with symmetrical breakdown behavior in both directions due to its bidirectional construction. Its glass-passivated junction ensures stable VBR (122–135 V) and low incremental surge resistance, enabling consistent clamping across repeated surges.
The SMCG110CAHE3/9AT leverages the DO-215AB gull-wing surface-mount package for automated placement and thermal reliability, with RθJA = 75 °C/W and RθJL = 15 °C/W. It meets UL 497B recognition and supports operation from –55 °C to +150 °C junction temperature.
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 - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 177 V - Clamped voltage at 8.5 A peak pulse current (10/1000 µs), limiting downstream stress |
| PPPM | 1500 W - Peak surge power handling capability under standardized waveform, critical for IEC 61000-4-5 compliance |
| ID @ VWM | 1.0 µA - Reverse leakage at rated stand-off voltage, ensuring minimal standby power loss |
| TJ max. | +150 °C - Maximum junction temperature rating, supporting under-hood automotive use without derating |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMCG (DO-215AB) - Surface-mount gull-wing package with matte tin-plated leads, MSL Level 1 (260 °C peak reflow), UL 94 V-0 molding compound, and AEC-Q101 qualification. No polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Provides symmetrical conduction path during positive or negative voltage excursions beyond VBR |
| Cathode | Transient return path (bidirectional) | Electrically identical to Anode in CA devices; no functional polarity distinction in circuit layout |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| 1500 W PPPM rating | Supports robust immunity against IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 kV line-to-ground) surges |
| Glass-passivated junction | Ensures long-term parameter stability and low leakage drift over temperature and lifetime |
| MSL Level 1 rating | Allows direct placement into standard lead-free reflow profiles without baking or special handling |
| UL 497B recognition | Validates suitability for telecom and industrial interface protection per safety standards |
Applications
| Automotive Sensor Interfaces | Industrial CAN Bus Lines |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and sensor supply rails in engine control units and body modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector entry point to shunt transients before reaching protected ICs. Use Value: Withstands 177 V clamping at 8.5 A and AEC-Q101 qualification, ensuring reliable operation in under-hood environments up to +125 °C ambient. | Use Scenario: Safeguarding differential CAN_H/CAN_L pairs in factory automation controllers subjected to EFT and surge events. IC Role / Device Role / Timing Role: Bidirectional suppression element placed across differential pair to clamp common-mode transients while preserving signal integrity. Use Value: Symmetrical VBR (122–135 V) and low clamping ratio (VC/VBR ≈ 1.4) minimize distortion of 1 Mbps CAN signals during surge events. |
| Telecom Line Interface Cards | Consumer Power Adapter Inputs |
Use Scenario: Input-stage protection on DSL or Ethernet PHY interfaces where lightning-induced surges couple onto twisted-pair lines. IC Role / Device Role / Timing Role: First-line defense suppressing common-mode surges before front-end transformers and PHY ICs. Use Value: 1500 W PPPM and UL 497B recognition enable compliance with GR-1089-CORE and ITU-T K.21 requirements. | Use Scenario: Secondary-side overvoltage protection on 12 V/24 V DC outputs of wall adapters used in smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Fast-response clamping device placed after DC-DC converter output to prevent damage from output capacitor failure or feedback loop faults. Use Value: 1.0 µA ID at 110 V VWM ensures negligible standby current draw, preserving energy efficiency certifications like DOE Level VI. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ110CA | Same VWM (110 V) and bidirectional configuration, but lower PPPM (400 W) and larger SMA (DO-214AC) package | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 | Select when board space allows larger footprint and surge requirements are ≤400 W |
| SMCJ110CA | Identical VWM and PPPM (1500 W), but uses SMC (DO-214AB) package with higher RθJA (85 °C/W) and no AEC-Q101 qualification | Not qualified for automotive; requires larger copper pads for thermal management | Select for industrial or telecom use where AEC-Q101 is not required and DO-214AB is preferred |
Compared with SMAJ110CA and SMCJ110CA, the SMCG110CAHE3/9AT delivers equivalent 110 V bidirectional clamping with superior automotive qualification, tighter thermal resistance (RθJA = 75 °C/W), and optimized gull-wing geometry for high-density PCB layouts-making it the preferred choice for space-constrained, mission-critical automotive and industrial designs.
Availability
SMCG110CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus hardening, and telecom line interface applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMCG110CAHE3/9AT 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, precision, and automotive-grade qualification.
The SMCG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power, bidirectional transient suppression in automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and 1500 W surge handling are mandatory.
FAQ
What is the clamping voltage of the SMCG110CAHE3/9AT under a 10/1000 µs surge?
The SMCG110CAHE3/9AT has a maximum clamping voltage (VC) of 177 V at 8.5 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events, ensuring downstream ICs remain within safe operating limits.
Is the SMCG110CAHE3/9AT suitable for automotive applications?
Yes, the SMCG110CAHE3/9AT 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 sensor interfaces where reliability under thermal and electrical stress is critical.
Does the SMCG110CAHE3/9AT have polarity markings on the package?
No, the SMCG110CAHE3/9AT does not feature polarity markings because it is a bidirectional TVS diode. Unlike unidirectional variants (e.g., SMCG110A), the CA suffix indicates symmetrical breakdown behavior-both terminals serve as interchangeable anode/cathode paths, eliminating the need for orientation-specific placement during assembly.
What is the thermal resistance of the SMCG110CAHE3/9AT?
The SMCG110CAHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead resistance (RθJL) of 15 °C/W, measured on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad layout. These values enable effective heat dissipation during repetitive surge events and support sustained operation at elevated ambient temperatures.
How does the SMCG110CAHE3/9AT differ from the SMCG110A variant?
The SMCG110CAHE3/9AT is bidirectional with symmetrical clamping in both polarities, while the SMCG110A is unidirectional and features a cathode band marking. The CA version supports AC-coupled or floating lines without polarity concerns, whereas the A version requires correct orientation and offers forward voltage drop (VF = 3.5 V at 100 A) not applicable to the CA type. Both share identical VWM (110 V) and PPPM (1500 W).
SMCG110CAHE3/9AT 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):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 177V
- Current - Peak Pulse (10/1000µs):
- 8.5A
- 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)
SMCG110CAHE3/9AT FAQ
1.How can I place an order for SMCG110CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG110CAHE3/9AT 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 SMCG110CAHE3/9AT reliable?
The price and inventory of SMCG110CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG110CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG110CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG110CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG110CAHE3/9AT?
SMCG110CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG110CAHE3/9AT 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 SMCG110CAHE3/9AT?
For technical support, including SMCG110CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG110CAHE3/9AT requirements.
6.How does Aetrix verify that SMCG110CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG110CAHE3/9AT 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 SMCG110CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG110CAHE3/9AT?
All SMCG110CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG110CAHE3/9AT, 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 SMCG110CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG110CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG110CAHE3/9AT Tags
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