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Vishay General Semiconductor - Diodes Division SMCJ110AHE3_A/H
- Part No.:
- SMCJ110AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ110AHE3_A/H.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,664
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Product details
Overview
SMCJ110AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) in SMC (DO-214AB) package, featuring 110 V standoff voltage (VWM), 122–135 V breakdown voltage (VBR at 1 mA), and 1500 W peak pulse power (10/1000 μs). It clamps transients to ≤177 V at 8.5 A peak surge current and operates from –55 °C to +150 °C, designed for automotive-grade ESD and surge protection on power rails and signal lines.
For engineers reviewing the SMCJ110AHE3_A/H datasheet, SMCJ110AHE3_A/H pinout, SMCJ110AHE3_A/H application, or SMCJ110AHE3_A/H equivalent, this device is selected for high-reliability overvoltage protection where AEC-Q101 qualification, low clamping voltage, and 1500 W surge capability are required - especially in automotive power modules, industrial sensor interfaces, and DC bus protection circuits.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ps) and low incremental surge resistance, enabling effective suppression of inductive switching spikes and lightning-induced transients. Its unidirectional polarity (cathode-banded) supports DC-biased rail protection with minimal leakage (≤1.0 μA at VWM) and stable thermal performance (RθJA = 75 °C/W).
The SMCJ110AHE3_A/H is rated for 200 A non-repetitive forward surge (8.3 ms half-sine) and meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow compatibility. Its AEC-Q101 qualification confirms suitability for automotive under-hood and powertrain applications requiring extended temperature operation and long-term reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping begins; sets safe DC bias margin for 12 V–48 V systems. |
| VBR (min/max) | 122 V / 135 V at 1 mA - Confirmed breakdown range ensures predictable turn-on across production lot and temperature. |
| VC @ IPPM | 177 V at 8.5 A - Clamping voltage defines worst-case voltage seen by protected IC during 1500 W transient event. |
| PPPM | 1500 W (10/1000 μs) - Peak surge power rating determines survivability against ISO 7637-2 Pulse 1/2/5a and IEC 61000-4-5 Level 4 surges. |
| IFSM | 200 A (8.3 ms) - Forward surge rating supports robustness against battery reverse-connection or load dump events. |
| TJ max | +150 °C - Junction temperature limit enables use in engine control units and power inverters without derating. |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal design support. |
Pinout & Package
SMCJ110AHE3_A/H is housed in an SMC (DO-214AB) package: a rectangular, low-profile, surface-mount case with matte tin-plated leads, compliant with J-STD-002 solderability and JESD 22-B102 whisker testing. Polarity is indicated by a cathode band on the unidirectional device.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal under forward bias | Connected to lower-potential side (e.g., ground or return path); enables conduction during positive transients on cathode side. |
| Cathode | Current exit terminal under forward bias; marked with band | Connected to protected line (e.g., 110 V rail); clamps voltage when transient exceeds VBR by shunting current to anode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including powertrain, body control, and ADAS modules per stress test requirements. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under humidity and thermal cycling (JEDEC JESD22-A101). |
| MSL Level 1 (260 °C) | Enables standard lead-free reflow assembly without moisture sensitivity concerns or baking requirements. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage stress on downstream MOSFETs or controllers during surge events. |
| 1500 W peak pulse power | Supports compliance with ISO 16750-2 and IEC 61000-4-5 for harsh automotive and industrial environments. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 110 V DC bus in electric power steering (EPS) or battery management system (BMS) modules from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between high-side switch output and ground to clamp positive surges before they reach gate drivers or MCU inputs. Use Value: Limits transient voltage to ≤177 V, preventing latch-up or oxide breakdown in 120 V-rated SiC MOSFET drivers and isolated CAN transceivers. |
Use Scenario: Safeguarding analog front-end (AFE) inputs of pressure or temperature sensors in factory automation PLCs exposed to relay coil kickback. IC Role / Device Role / Timing Role: Standoff-connected TVS on sensor supply line (VSUPPLY), conducting only during >122 V excursions to divert energy away from precision op-amps. Use Value: Maintains <1.0 μA leakage at 110 V, preserving sensor offset accuracy while surviving repeated 1 kV/500 A surge pulses per IEC 61000-4-5. |
| Telecom DC Power Feeding Protection | Renewable Energy Inverter DC Link Protection |
Use Scenario: Shielding PoE++ (IEEE 802.3bt Type 4) midspan injectors from induced surges on 57 V–110 V DC feeding lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC feed path upstream of DC-DC converters, triggered within picoseconds of transient onset. Use Value: Achieves <10 ns response time and 177 V clamping, ensuring downstream PMICs and Ethernet PHYs remain within absolute maximum ratings. |
Use Scenario: Guarding DC link capacitors and IGBT gate drivers in solar string inverters subjected to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Parallel-mounted TVS across DC+ and DC− rails to absorb differential-mode energy from surge generators or grid faults. Use Value: Withstands 200 A single-half-sine surge (8.3 ms), enabling compliance with UL 1741 SA and IEC 62109-1 fault ride-through requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ110A | Same VWM (110 V), but lower PPPM (400 W) and higher VC (193 V); SMC package not AEC-Q101 qualified. | Restricted to commercial-grade consumer or office equipment; unsuitable for automotive or industrial surge immunity certification. | Select only if cost-sensitive, non-automotive designs require basic 110 V clamping with reduced surge margin. |
| ON Semiconductor 1.5SMC110A | Identical VWM, VBR, and PPPM, but rated only to +125 °C TJ max and lacks AEC-Q101 documentation. | Not validated for under-hood automotive use; requires additional qualification testing for automotive OEM programs. | Acceptable for industrial controls where ambient temperature stays below 105 °C and AEC-Q101 is not mandated. |
Compared with Littelfuse SMAJ110A and ON Semi 1.5SMC110A, the SMCJ110AHE3_A/H delivers higher surge robustness (1500 W vs. 400 W or same 1500 W without AEC-Q101), tighter clamping (177 V vs. 193 V), and certified automotive reliability - making it the preferred choice for safety-critical 110 V rail protection.
Availability
SMCJ110AHE3_A/H is available at Aetrix Electronics and suitable for automotive power modules, industrial sensor interfaces, telecom DC feeding systems, and renewable energy inverter DC links requiring stable component supply, AEC-Q101 traceability, and 1500 W surge immunity.
Supply support for SMCJ110AHE3_A/H 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, efficiency, and application-specific optimization.
The SMCJ series was developed for high-energy transient suppression in demanding automotive and industrial environments, combining AEC-Q101 qualification, DO-214AB thermal performance, and precise VBR control for consistent clamping behavior.
FAQ
What is the clamping voltage of the SMCJ110AHE3_A/H at its rated peak pulse current?
The SMCJ110AHE3_A/H has a maximum clamping voltage (VC) of 177 V at its specified peak pulse current (IPPM) of 8.5 A, measured using a 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during a full-power transient event and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2. The SMCJ110AHE3_A/H maintains this clamping performance across its operating temperature range.
Is the SMCJ110AHE3_A/H AEC-Q101 qualified, and what does that mean for automotive use?
Yes, the SMCJ110AHE3_A/H is explicitly AEC-Q101 qualified, as noted in the Vishay datasheet footnote (1) on page 3 and ordering information table. This qualification validates its reliability under automotive stress conditions including temperature cycling, humidity, mechanical shock, and accelerated life testing. For automotive applications, the SMCJ110AHE3_A/H can be deployed in powertrain, chassis, and body electronics without additional component-level qualification, supporting compliance with ISO/TS 16949 and OEM part approval processes.
What is the standoff voltage (VWM) and why is it critical for selecting the SMCJ110AHE3_A/H?
The standoff voltage (VWM) of the SMCJ110AHE3_A/H is 110 V - the maximum DC or continuous reverse voltage the device can withstand without entering breakdown. This parameter must exceed the normal operating voltage of the protected line by at least 10–20 % to prevent leakage or premature conduction. For example, the SMCJ110AHE3_A/H is correctly applied on 90–100 V nominal DC rails (e.g., 48 V systems with boost stages or 110 V telecom feeds), ensuring stable operation during steady-state while remaining ready to clamp transients above 122 V.
Does the SMCJ110AHE3_A/H have polarity marking, and how is it oriented in circuit layout?
Yes, the SMCJ110AHE3_A/H is unidirectional and features a visible cathode band on the SMC (DO-214AB) package body. In circuit layout, the banded end connects to the line being protected (e.g., 110 V rail), while the unbanded end connects to ground or the lower-potential reference. This orientation ensures the device remains reverse-biased during normal operation and conducts only during positive overvoltage events, protecting downstream components from excessive voltage stress.
What is the thermal resistance and how does it affect PCB layout for the SMCJ110AHE3_A/H?
The SMCJ110AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as defined in the Vishay datasheet. To maintain safe junction temperatures under sustained power dissipation or repeated surges, PCB layout must replicate this pad area and ensure adequate copper pour connectivity. Reducing pad size increases RθJA, risking thermal runaway during high-duty-cycle transients - a key design consideration for the SMCJ110AHE3_A/H in high-reliability applications.
SMCJ110AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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 (SMCJ)
SMCJ110AHE3_A/H FAQ
1.How can I place an order for SMCJ110AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ110AHE3_A/H 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 SMCJ110AHE3_A/H reliable?
The price and inventory of SMCJ110AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ110AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ110AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ110AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ110AHE3_A/H?
SMCJ110AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ110AHE3_A/H 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 SMCJ110AHE3_A/H?
For technical support, including SMCJ110AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ110AHE3_A/H requirements.
6.How does Aetrix verify that SMCJ110AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ110AHE3_A/H 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 SMCJ110AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ110AHE3_A/H?
All SMCJ110AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ110AHE3_A/H, 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 SMCJ110AHE3_A/H part is unused and in its original packaging.
Return procedure for SMCJ110AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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