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Vishay General Semiconductor - Diodes Division SMCJ110AHM3/I
- Part No.:
- SMCJ110AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ110AHM3/I.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,943
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Product details
Overview
SMCJ110AHM3/I 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). It clamps transients to 177 V at rated surge, features glass-passivated junction, AEC-Q101 qualification, and operates from –55 °C to +150 °C.
For engineers reviewing the SMCJ110AHM3/I datasheet, SMCJ110AHM3/I pinout, SMCJ110AHM3/I application, or SMCJ110AHM3/I equivalent, key selection criteria include unidirectional polarity, 110 V stand-off rating, 1500 W surge capability, SMC package thermal performance (RθJA = 75 °C/W), and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This TVS diode uses an avalanche breakdown mechanism to clamp transient overvoltages within nanoseconds, limiting voltage across protected circuitry during ESD, lightning-induced surges, or inductive switching events. Its low incremental surge resistance and fast response time ensure minimal let-through energy to downstream ICs or MOSFETs.
The device is rated for non-repetitive 10/1000 μs waveform surges up to 1500 W, derated linearly above 25 °C ambient per Fig. 2, and mounted on 8.0 mm × 8.0 mm copper pads per JEDEC standard layout. Polarity is marked by cathode band; no marking on bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR min/max | 122 V / 135 V at IT = 1 mA - Verified breakdown threshold range ensures consistent turn-on behavior across production lots. |
| VC @ IPPM | 177 V - Clamped voltage during full 1500 W surge; determines maximum stress imposed on protected load. |
| PPPM | 1500 W - Peak pulse power handling for 10/1000 μs waveform; defines single-event surge immunity level. |
| IPPM | 177 A - Corresponding peak current at VC = 177 V; used to size PCB trace fusing and upstream protection. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial enclosures. |
| RθJA | 75 °C/W - Thermal resistance junction-to-ambient on standard pad layout; informs thermal derating in confined spaces. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, MSL Level 1, UL 94 V-0 molding compound. Cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional configuration | Connected to ground or reference node; carries surge current to earth during clamping event. |
| Cathode | High-side connection; marked with band | Connected to protected line (e.g., power rail or signal); voltage referenced to anode during transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics including engine control units and ADAS sensors where reliability under thermal cycling and vibration is critical. |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental regulations and supports lead-free reflow soldering without compromising mechanical or electrical performance. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection margin for sensitive CMOS inputs. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life before reflow; eliminates baking requirement and reduces manufacturing overhead. |
| Glass passivated chip junction | Enhances long-term stability and leakage performance over temperature and lifetime versus epoxy-passivated alternatives. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients in passenger vehicles. IC Role / Device Role / Timing Role: Primary clamping element placed between battery rail and point-of-load regulator input. Use Value: Withstands 1500 W surges while clamping to ≤177 V, preventing damage to downstream DC/DC converters and microcontrollers. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors exposed to ESD in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on 4–20 mA or 0–10 V output lines. Use Value: Sub-1 ns response ensures sensor signal integrity remains intact during ±8 kV contact ESD events per IEC 61000-4-2. |
| Telecom DC Power Input Protection | Consumer Device USB Power Path Protection |
Use Scenario: Front-end surge suppression on -48 V telecom rectifier outputs feeding base station RF modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed after bulk filter capacitor to absorb lightning-induced surges. Use Value: 110 V VWM provides sufficient margin above nominal -48 V rail while enabling robust 1500 W surge handling. | Use Scenario: Overvoltage protection on USB-C VBUS lines in portable speakers or docking stations. IC Role / Device Role / Timing Role: Standoff-rated clamping device between input connector and USB PD controller. Use Value: Halogen-free HM3 construction supports consumer safety standards; 177 V clamping prevents latch-up in USB interface ICs during hot-plug transients. |
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/A | Lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W), same VWM and VBR range | Not suitable for 1500 W surge environments; limited to lower-energy interfaces like RS-485 or CAN | Select only when board space is constrained and surge threat level is ≤400 W. |
| SMCJ110A-M3/57T | Same electrical specs and SMC package, but commercial-grade (non-AEC-Q101), M3 suffix (halogen-free, RoHS), 7" tape/reel packaging | Lacks automotive qualification; acceptable for industrial or telecom where AEC-Q101 is not mandated | Choose for cost-sensitive non-automotive designs requiring identical surge performance and footprint. |
Compared with SMCJ110AHM3/I, SMAJ110AHE3/A offers reduced surge capacity in a smaller package, while SMCJ110A-M3/57T delivers identical protection without automotive qualification-enabling trade-offs between reliability assurance, physical size, and application compliance requirements.
Availability
SMCJ110AHM3/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power supplies, and consumer USB-C power path designs requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ110AHM3/I 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; it was engineered for automotive, industrial, and telecom systems demanding AEC-Q101 validation, high PPPM, and stable clamping under thermal stress.
FAQ
What is the clamping voltage of the SMCJ110AHM3/I under full-rated surge conditions?
The SMCJ110AHM3/I clamps to 177 V when subjected to its maximum rated 10/1000 μs surge current of 177 A, corresponding to 1500 W peak pulse power. This value is measured per JEDEC standard test conditions with specified mounting pad layout and is guaranteed across the full operating temperature range.
Is the SMCJ110AHM3/I suitable for automotive applications?
Yes, the SMCJ110AHM3/I is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction. It is explicitly rated for automotive use in engine control, body electronics, and ADAS subsystems where sustained operation from –55 °C to +150 °C and resistance to thermal cycling are required.
How does the SMCJ110AHM3/I differ from bidirectional variants like SMCJ110CA?
The SMCJ110AHM3/I is unidirectional with cathode marking and conducts only in reverse bias during clamping; SMCJ110CA is bidirectional, symmetrical, and lacks polarity marking. The unidirectional version offers lower leakage at VWM and is preferred for DC rails, while bidirectional types suit AC-coupled or floating signal lines.
What is the thermal resistance of the SMCJ110AHM3/I, and how does it affect layout design?
The SMCJ110AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per JEDEC standard. To maintain TJ ≤ 150 °C under 6.5 W steady-state dissipation, PCB copper area and airflow must be sized accordingly-undersized pads increase thermal impedance and risk premature failure.
Does the SMCJ110AHM3/I require special handling or moisture sensitivity precautions?
No-SMCJ110AHM3/I is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and requires no baking prior to reflow. Its moisture-resistant molding compound and robust SMC package enable direct placement into standard SMT assembly processes without humidity control constraints.
SMCJ110AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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/I FAQ
1.How can I place an order for SMCJ110AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ110AHM3/I 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/I reliable?
The price and inventory of SMCJ110AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ110AHM3/I is usually 5 days.
3.What payment methods are accepted for SMCJ110AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ110AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ110AHM3/I?
SMCJ110AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ110AHM3/I 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/I?
For technical support, including SMCJ110AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ110AHM3/I requirements.
6.How does Aetrix verify that SMCJ110AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMCJ110AHM3/I 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/I meets industry standards.
7.What is the process for return or replacement of SMCJ110AHM3/I?
All SMCJ110AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ110AHM3/I, 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/I part is unused and in its original packaging.
Return procedure for SMCJ110AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ110AHM3/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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