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Vishay General Semiconductor - Diodes Division SMCJ110CAHM3_A/I
- Part No.:
- SMCJ110CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ110CAHM3_A/I.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,714
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Product details
Overview
SMCJ110CAHM3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for clamping voltage transients up to 177 V at 8.5 A peak pulse current (10/1000 µs), with 1500 W peak pulse power rating and 110 V standoff voltage. It protects sensitive ICs, MOSFETs, and sensor signal lines in automotive, industrial, and telecom systems against inductive switching and lightning-induced surges.
For engineers reviewing the SMCJ110CAHM3_A/I datasheet, SMCJ110CAHM3_A/I pinout, SMCJ110CAHM3_A/I application, or SMCJ110CAHM3_A/I equivalent, this device is selected for high-energy transient suppression where bidirectional clamping, AEC-Q101 qualification, halogen-free RoHS compliance, and stable clamping performance across -55 °C to +150 °C operating range are required.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures low leakage (<1.0 µA at 110 V), fast response time (<1.0 ps), and stable breakdown behavior under repetitive surge stress.
The device complies with AEC-Q101 for automotive use and meets UL 497B recognition (QVGQ2). Its thermal resistance (RθJA = 75 °C/W) and junction-to-lead resistance (RθJL = 15 °C/W) support reliable operation on standard 8.0 mm × 8.0 mm copper pads without active cooling in most embedded applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VWM) | 110 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin for 100 V nominal bus systems. |
| Breakdown Voltage (VBR) | 122 V min / 135 V max at 1 mA - Tight tolerance ensures predictable turn-on during overvoltage events. |
| Clamping Voltage (VC) | 177 V at 8.5 A (10/1000 µs) - Limits downstream voltage stress during surge; critical for protecting 150 V-rated components. |
| Peak Pulse Power (PPPM) | 1500 W - Sustains high-energy transients such as ISO 7637-2 Pulse 5a (load dump) in automotive ECUs. |
| Operating Temperature | -55 °C to +150 °C - Enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment. |
| Leakage Current (ID) | ≤1.0 µA at 110 V - Minimizes standby power loss and avoids false triggering in high-impedance sensor interfaces. |
| Package | SMC (DO-214AB) - Surface-mount footprint compatible with automated assembly; 7.75 mm × 6.22 mm body with 2.62 mm lead spacing. |
Pinout & Package
SMCJ110CAHM3_A/I uses the SMC (DO-214AB) package: a 2-terminal, non-polarized surface-mount case with no marking for bidirectional devices. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (reverse bias) | One terminal of symmetrical junction; accepts surge current in either direction during overvoltage event. |
| Cathode | Transient current exit (reverse bias) | Second terminal of symmetrical junction; completes low-impedance path to ground or rail during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - suitable for ECU, ADAS, and infotainment modules. |
| Halogen-free & RoHS-compliant | Meets IEC 61249-2-21 and JEDEC JS709C requirements - supports green manufacturing and end-of-life recycling mandates. |
| Low incremental surge resistance | Enables tighter clamping (177 V @ 8.5 A) versus competitive 1500 W TVS devices - reduces voltage overshoot on protected nodes. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns - eliminates pre-bake requirement. |
| Glass passivated junction | Improves long-term stability of VBR and leakage under thermal cycling and humidity exposure - critical for 15-year automotive service life. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver power rails against load dump and jump-start transients in body control modules. IC Role / Device Role / Timing Role: Bidirectional clamping device placed between battery rail and local regulator input. Use Value: Clamps 12 V system surges up to 177 V while maintaining ≤1.0 µA leakage - preserves low-quiescent-current design integrity. |
Use Scenario: Shielding 4–20 mA current loop inputs in PLC analog input modules from field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Primary transient suppressor across signal and return lines in two-wire sensor interface. Use Value: Symmetric clamping ensures equal protection regardless of signal polarity - eliminates need for dual unidirectional devices. |
| Telecom DC Power Feeds | Consumer Appliance Motor Control |
Use Scenario: Safeguarding PoE-powered Ethernet switch ports against lightning-induced common-mode surges on 48 V DC feeds. IC Role / Device Role / Timing Role: Secondary-level TVS on midspan injector output, coordinated with primary GDT/MOV stage. Use Value: 1500 W rating handles IEC 61000-4-5 Combination Wave (10/700 µs) energy - extends system-level surge immunity beyond basic compliance. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home vacuum cleaners and robotic mowers. IC Role / Device Role / Timing Role: Across-motor terminals to clamp commutation spikes before reaching MCU GPIO or driver ICs. Use Value: Fast response (<1 ps) and low clamping voltage prevent latch-up in 3.3 V logic - avoids firmware lockup during motor stall. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CAHM3_A/I | Lower PPPM (600 W), same VWM/VC, SMB (DO-214AA) package - 30% smaller footprint but 58% lower surge capacity. | Suitable only for low-energy transients (e.g., ESD-only environments); not rated for ISO 7637-2 Pulse 5a. | Select when board space is constrained and surge threat level is limited to IEC 61000-4-2 (±15 kV air) or lower. |
| SMCJ110AHE3_A/I | Unidirectional version; identical VWM, VBR, VC, and PPPM, but requires correct polarity placement and adds cathode marking. | Applicable only in DC-coupled, polarity-defined circuits (e.g., single-rail power supplies); cannot protect AC or differential signals. | Choose when protecting a known-polarity rail and cost optimization outweighs flexibility - no change in PCB layout needed. |
Compared with SMCJ110CAHM3_A/I, SMBJ110CAHM3_A/I trades surge robustness for compactness, while SMCJ110AHE3_A/I sacrifices bidirectional capability for simplified polarity management - neither offers drop-in replacement without circuit review.
Availability
SMCJ110CAHM3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC analog inputs, telecom PoE injectors, and consumer appliance motor controllers requiring stable component supply across multi-year production cycles.
Supply support for SMCJ110CAHM3_A/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 automotive qualification.
The SMCJ series delivers high-power transient suppression for harsh-environment applications, engineered specifically for AEC-Q101 compliance, extended temperature operation, and consistent clamping performance in safety-critical systems.
FAQ
What is the clamping voltage of SMCJ110CAHM3_A/I at its rated peak pulse current?
The SMCJ110CAHM3_A/I has a maximum clamping voltage (VC) of 177 V when subjected to an 8.5 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ110CAHM3_A/I maintains this clamping performance across its full operating temperature range.
Is SMCJ110CAHM3_A/I suitable for automotive applications?
Yes, SMCJ110CAHM3_A/I is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS modules. Its halogen-free, RoHS-compliant construction (HM3 suffix), MSL Level 1 rating, and guaranteed operation from -55 °C to +150 °C meet stringent automotive reliability requirements. The SMCJ110CAHM3_A/I is listed in Vishay's automotive-grade ordering matrix with HE3/HM3 suffixes.
How does the bidirectional configuration of SMCJ110CAHM3_A/I affect its circuit implementation?
The bidirectional configuration of SMCJ110CAHM3_A/I allows it to clamp overvoltages in both polarities without regard to orientation, making it ideal for AC-coupled lines, differential buses (e.g., RS-485), or systems where polarity reversal is possible. Unlike unidirectional variants, SMCJ110CAHM3_A/I has no cathode band marking and must be placed symmetrically across the protected nodes - simplifying layout but requiring verification of symmetrical surge coupling paths.
What is the thermal resistance of SMCJ110CAHM3_A/I, and how does it impact PCB layout?
The SMCJ110CAHM3_A/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 terminal, and RθJL of 15 °C/W. These values assume minimum recommended pad layout per Vishay's datasheet; reducing pad size increases thermal impedance and may derate surge capability. For sustained surge duty, designers should verify temperature rise using the SMCJ110CAHM3_A/I's 6.5 W steady-state power dissipation limit.
Does SMCJ110CAHM3_A/I require a heatsink for standard surge protection use?
No, SMCJ110CAHM3_A/I does not require an external heatsink for transient suppression applications because its 1500 W peak pulse power is inherently short-duration (microseconds to milliseconds), and its 6.5 W steady-state power dissipation is managed via PCB copper thermal mass. Heatsinking is unnecessary unless the device experiences frequent repetitive surges exceeding 1 Hz - in which case thermal simulation using the SMCJ110CAHM3_A/I's RθJA and RθJL values is recommended.
SMCJ110CAHM3_A/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:
- 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:
- 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_A/I FAQ
1.How can I place an order for SMCJ110CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ110CAHM3_A/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_A/I reliable?
The price and inventory of SMCJ110CAHM3_A/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_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ110CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ110CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ110CAHM3_A/I?
SMCJ110CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ110CAHM3_A/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_A/I?
For technical support, including SMCJ110CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ110CAHM3_A/I requirements.
6.How does Aetrix verify that SMCJ110CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ110CAHM3_A/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_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ110CAHM3_A/I?
All SMCJ110CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ110CAHM3_A/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_A/I part is unused and in its original packaging.
Return procedure for SMCJ110CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ110CAHM3_A/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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DESD5V0U1BB-7
Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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