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Vishay General Semiconductor - Diodes Division SMCJ110CAHM3/I
- Part No.:
- SMCJ110CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ110CAHM3/I.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,206
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Product details
Overview
SMCJ110CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 110 V stand-off voltage (VWM), 177 A peak pulse current (IPPM) at 10/1000 µs, and clamps transients to ≤177 V while delivering 1500 W peak pulse power. It is halogen-free, RoHS-compliant, and AEC-Q101 qualified for automotive-grade reliability.
For engineers reviewing the SMCJ110CAHM3/I datasheet, SMCJ110CAHM3/I pinout, SMCJ110CAHM3/I application, or SMCJ110CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, 1500 W surge rating, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
The SMCJ110CAHM3/I operates as a silicon avalanche diode with symmetrical breakdown behavior in both polarities, enabling protection against voltage transients regardless of polarity-ideal for AC-coupled or floating signal lines. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM).
It uses a low-inductance SMC package optimized for fast response (<1 ns), low incremental surge resistance, and high thermal dissipation via copper pad mounting. The device derates linearly above 25 °C ambient per Figure 2, maintaining operation up to TJ = +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 110 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown. |
| VBR (Breakdown Voltage) | 122 V min / 135 V max at IT = 1 mA - Ensures reliable triggering within tight tolerance band under transient stress. |
| VC (Clamping Voltage) | ≤177 V at IPPM = 177 A - Limits downstream voltage stress during worst-case 10/1000 µs surge events. |
| PPPM (Peak Pulse Power) | 1500 W - Sustains high-energy transients without failure when mounted on 8.0 mm × 8.0 mm copper pads. |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - Minimizes standby power loss and avoids false triggering in high-impedance circuits. |
| TJ Range | –55 °C to +150 °C - Supports operation in under-hood automotive, industrial control, and outdoor telecom environments. |
| RθJA | 75 °C/W - Enables thermal design with standard PCB copper area; requires no external heatsink for typical surge duty cycles. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | One side of symmetrical avalanche junction; conducts during negative surges relative to cathode reference. |
| Cathode | Transient current entry (positive polarity) | Other side of symmetrical junction; conducts during positive surges - functionally identical to anode in bidirectional mode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units, ADAS sensors, and infotainment power rails. |
| Halogen-free & RoHS-compliant | Meets global environmental compliance requirements (Pb-free matte tin plating, JESD201 Class 2 whisker resistance). |
| MSL Level 1 | Unlimited floor life at ≤30 °C/60% RH; compatible with standard reflow profiles up to 260 °C peak. |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes voltage overshoot during surge events, reducing risk of downstream IC latch-up or damage. |
| Fast response time (<1 ns) | Engages before most ESD or lightning-induced transients fully develop, protecting high-speed interfaces. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power input pins to clamp ±100 V surges to safe levels. Use Value: Prevents permanent damage to microcontrollers and CAN transceivers during ISO 7637-2 Pulse 5a events. | Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Low-capacitance TVS shunting transient energy away from precision ADC inputs. Use Value: Maintains signal integrity and measurement accuracy in harsh factory-floor environments. |
| Telecom DC Power Interface | Consumer Device USB/Type-C Port Protection |
Use Scenario: Safeguarding PoE-powered switches and base stations from lightning-induced surges on 48 V DC feeds. IC Role / Device Role / Timing Role: Primary-level surge suppression ahead of DC-DC converters and Ethernet PHYs. Use Value: Absorbs 1500 W pulses without degradation, meeting IEC 61000-4-5 Level 4 immunity requirements. | Use Scenario: Adding robustness to USB-C receptacles exposed to user-handling ESD and hot-plug transients. IC Role / Device Role / Timing Role: Bidirectional clamping element between VBUS and ground to limit voltage excursions. Use Value: Survives >30 kV contact ESD (IEC 61000-4-2) while preserving low-leakage performance during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC110CA | Same VWM (110 V) and PPPM (1500 W), but in smaller SMA package (DO-214AC); lower IPPM (160 A) and higher VC (185 V). | Limited thermal mass reduces sustained surge capability; suitable only for lower-duty-cycle consumer applications. | Select SAC110CA only if board space is constrained and surge energy is below 100 mJ. |
| SMCJ110CAHE3/I | Identical electrical specs and package, but RoHS-compliant commercial grade (not AEC-Q101 qualified); same MSL level and termination. | Lacks automotive qualification documentation; not approved for safety-critical vehicle subsystems. | Choose SMCJ110CAHE3/I for cost-sensitive industrial or telecom designs where AEC-Q101 is not mandated. |
Compared with SAC110CA and SMCJ110CAHE3/I, the SMCJ110CAHM3/I uniquely combines AEC-Q101 qualification, halogen-free construction, and full 1500 W surge handling in the thermally robust SMC package-making it the preferred choice for automotive and high-reliability industrial deployments.
Availability
SMCJ110CAHM3/I is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feed surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SMCJ110CAHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCJ series targets high-energy transient suppression in demanding environments; its design prioritizes automotive-grade robustness, low clamping voltage, and compatibility with automated manufacturing processes.
FAQ
What does the "HM3" suffix indicate in SMCJ110CAHM3/I?
The "HM3" suffix denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. The "H" indicates AEC-Q101 compliance, "M3" specifies halogen-free matte tin plating, and "I" refers to 13-inch tape-and-reel packaging (3500 units per reel). This distinguishes SMCJ110CAHM3/I from commercial-grade variants like SMCJ110CA-E3/I.
Is SMCJ110CAHM3/I unidirectional or bidirectional?
SMCJ110CAHM3/I is a bidirectional TVS diode, as confirmed by the "CA" suffix in its part number. It provides symmetrical clamping for both positive and negative transients, with identical VBR min/max (122 V / 135 V) and VC (≤177 V) in either polarity-no polarity marking is present on the SMC package.
What is the maximum clamping voltage for SMCJ110CAHM3/I under surge conditions?
The maximum clamping voltage (VC) for SMCJ110CAHM3/I is 177 V when subjected to its rated peak pulse current (IPPM = 177 A) using a 10/1000 µs waveform. This value is measured at TA = 25 °C with the device mounted on 8.0 mm × 8.0 mm copper pads per JEDEC standards.
Can SMCJ110CAHM3/I replace SMCJ110A in a design?
No-SMCJ110CAHM3/I is bidirectional, while SMCJ110A is unidirectional. Substituting them requires verifying circuit topology: unidirectional devices require correct polarity orientation and cannot protect AC or floating nodes. Using SMCJ110CAHM3/I in place of SMCJ110A eliminates polarity concerns but may increase leakage slightly due to dual-junction structure.
What PCB layout guidance applies to SMCJ110CAHM3/I for optimal thermal performance?
For optimal thermal performance, mount SMCJ110CAHM3/I on minimum 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal, as specified in the Vishay datasheet. Use internal or external copper planes connected via multiple thermal vias to enhance heat dissipation and sustain repeated 1500 W surges without junction overheating.
SMCJ110CAHM3/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:
- -
- 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:
- 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)
SMCJ110CAHM3/I FAQ
1.How can I place an order for SMCJ110CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ110CAHM3/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 SMCJ110CAHM3/I reliable?
The price and inventory of SMCJ110CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ110CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMCJ110CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ110CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ110CAHM3/I?
SMCJ110CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ110CAHM3/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 SMCJ110CAHM3/I?
For technical support, including SMCJ110CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ110CAHM3/I requirements.
6.How does Aetrix verify that SMCJ110CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMCJ110CAHM3/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 SMCJ110CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMCJ110CAHM3/I?
All SMCJ110CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ110CAHM3/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 SMCJ110CAHM3/I part is unused and in its original packaging.
Return procedure for SMCJ110CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ110CAHM3/I Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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