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Vishay General Semiconductor - Diodes Division SMCJ110AHM3_A/H
- Part No.:
- SMCJ110AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ110AHM3_A/H.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,095
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Product details
Overview
SMCJ110AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 110 V standoff voltage (VWM), 177 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) under 10/1000 µs waveform. It protects MOSFETs, ICs, and sensor signal lines in automotive power systems and industrial control interfaces.
For engineers reviewing the SMCJ110AHM3_A/H datasheet, SMCJ110AHM3_A/H pinout, SMCJ110AHM3_A/H application, or SMCJ110AHM3_A/H equivalent, key selection criteria include clamping voltage (VC = 177 V), temperature coefficient of breakdown voltage (+0.107 %/°C), AEC-Q101 qualification status, and halogen-free RoHS-compliant construction per HM3 suffix.
Technical Context
This TVS diode operates as a unidirectional clamping device with a cathode-band-marked polarity, leveraging glass-passivated junction technology for stable avalanche breakdown. Its 122–135 V breakdown voltage range (VBR at IT = 1 mA) ensures precise triggering above 110 V standoff while maintaining low leakage (<1.0 µA at VWM).
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation up to +150 °C junction temperature. The device meets MSL level 1 (260 °C reflow peak) and is qualified to AEC-Q101 for automotive-grade reliability.
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 - guaranteed avalanche onset range for reliable overvoltage detection |
| VC @ IPPM | 177 V - clamped voltage during 177 A transient, limiting downstream stress |
| PPPM | 1500 W - peak surge energy handling capability under standardized 10/1000 µs waveform |
| ID @ VWM | <1.0 µA - ultra-low leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - enables use in under-hood automotive and industrial environments |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal requirement |
Pinout & Package
SMCJ110AHM3_A/H uses the SMC (DO-214AB) package: molded plastic case with matte tin-plated leads, 0.305–0.320 inch length, 0.220–0.246 inch width, and cathode band marking on the anode-side end. Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal per Vishay specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | High-impedance input node for transient sensing | Connects to protected line; avalanche conduction occurs from cathode to anode during overvoltage |
| Anode (unmarked end) | Reference/return path | Typically tied to ground or low-impedance return; completes clamping current path during surge events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements |
| Halogen-free & RoHS-compliant (HM3) | Meets IEC 61249-2-21 and JESD201 Class 2 whisker resistance standards |
| Low incremental surge resistance | Enables tighter clamping (VC/VBR ratio = 1.31) versus competing TVS devices |
| MSL Level 1 moisture sensitivity | Allows standard SMT reflow without baking; peak temperature tolerance up to 260 °C |
| Glass passivated junction | Ensures long-term stability of VBR and leakage across temperature and lifetime |
Applications
| Automotive Power Distribution | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load-dump transients (ISO 7637-2 Pulse 5a) and alternator overshoot. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between power rail and ground, triggered within nanoseconds of overvoltage onset. Use Value: Limits voltage to ≤177 V during 177 A surges, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Safeguarding gate drivers and current-sense amplifiers in variable-frequency drives exposed to IGBT switching noise and inductive kickback. IC Role / Device Role / Timing Role: Standoff-rated TVS on DC bus and signal inputs, absorbing repetitive 1500 W pulses without degradation. Use Value: Maintains <1.0 µA leakage at 110 V, avoiding false triggering in precision analog feedback paths. |
| Telecom Line Interface Protection | Automotive Sensor Signal Conditioning |
Use Scenario: Shielding Ethernet PHYs and RS-485 transceivers from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on differential pairs, coordinated with secondary GDT or polymer PTC for staged protection. Use Value: 177 V clamping voltage aligns with 100BASE-TX common-mode immunity thresholds and avoids data corruption. | Use Scenario: Guarding LIN bus nodes and pressure/temperature sensor outputs against ESD and cable discharge events in vehicle cabins. IC Role / Device Role / Timing Role: Low-capacitance unidirectional suppressor on single-ended analog or digital lines, referenced to chassis ground. Use Value: 0.107 %/°C VBR tempco ensures consistent clamping across -40 °C to +125 °C ambient ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ110AHE3/A | Lower PPPM (400 W), smaller SMA package, same VWM and VBR range | Not suitable for ISO 7637-2 Pulse 5a; limited to lower-energy ESD/lightning secondary protection | Select when board space is constrained and surge energy does not exceed 400 W |
| SMCJ110AHE3_A/H | Same electrical specs but commercial-grade (E3), non-AEC-Q101, non-halogen-free | Lacks automotive qualification and halogen-free compliance; acceptable for industrial/commercial use only | Select for cost-sensitive non-automotive designs where AEC-Q101 and HM3 are not required |
Compared with SMCJ110AHM3_A/H, SMAJ110AHE3/A offers footprint reduction at the expense of surge capacity, while SMCJ110AHE3_A/H provides identical protection performance without automotive qualification or halogen-free assurance-making the HM3 variant essential for Tier-1 automotive supply chains.
Availability
SMCJ110AHM3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive inputs, telecom line interface protection, and automotive sensor signal conditioning requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMCJ110AHM3_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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series targets high-energy transient suppression in harsh environments, with design focus on automotive, industrial, and telecom infrastructure where robustness, thermal stability, and regulatory compliance are mandatory.
FAQ
What is the clamping voltage of SMCJ110AHM3_A/H at its rated peak pulse current?
The SMCJ110AHM3_A/H has a maximum clamping voltage (VC) of 177 V when subjected to its rated peak pulse current (IPPM) of 177 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ110AHM3_A/H maintains this clamping performance across its qualified operating temperature range.
Is SMCJ110AHM3_A/H qualified for automotive applications?
Yes, SMCJ110AHM3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" and documentation in datasheet 88394. This qualification covers stress tests including HTGB, HTRB, TCT, and ESD, validating suitability for automotive powertrain, body electronics, and ADAS subsystems. The SMCJ110AHM3_A/H meets all requirements for deployment in vehicles without additional qualification.
What does the "HM3" suffix indicate in SMCJ110AHM3_A/H?
The "HM3" suffix in SMCJ110AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade E3/M3 versions and confirms compliance with JESD201 Class 2 whisker resistance, UL 94 V-0 flammability, and automotive reliability standards. The SMCJ110AHM3_A/H is therefore specified for high-reliability automotive and industrial deployments.
How does the thermal resistance of SMCJ110AHM3_A/H affect PCB layout?
The SMCJ110AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W, which requires adherence to Vishay's recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad layout per terminal to achieve rated power dissipation. Deviating from this layout increases thermal impedance, reducing safe operating area and potentially causing premature failure under repeated surges. The SMCJ110AHM3_A/H must be placed with adequate copper pour and no thermal relief on mounting pads.
Can SMCJ110AHM3_A/H be used in bidirectional configurations?
No, SMCJ110AHM3_A/H is a unidirectional TVS diode, indicated by the "A" (not "CA") suffix and cathode band marking. Bidirectional operation requires the CA variant (e.g., SMCJ110CA), which lacks polarity marking and conducts symmetrically. Using SMCJ110AHM3_A/H in bidirectional applications would result in forward conduction on one half-cycle, causing failure. Always match the SMCJ110AHM3_A/H polarity to system grounding topology.
SMCJ110AHM3_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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ110AHM3_A/H FAQ
1.How can I place an order for SMCJ110AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ110AHM3_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 SMCJ110AHM3_A/H reliable?
The price and inventory of SMCJ110AHM3_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 SMCJ110AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ110AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ110AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ110AHM3_A/H?
SMCJ110AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ110AHM3_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 SMCJ110AHM3_A/H?
For technical support, including SMCJ110AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ110AHM3_A/H requirements.
6.How does Aetrix verify that SMCJ110AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ110AHM3_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 SMCJ110AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ110AHM3_A/H?
All SMCJ110AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ110AHM3_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 SMCJ110AHM3_A/H part is unused and in its original packaging.
Return procedure for SMCJ110AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ110AHM3_A/H Tags
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