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Vishay General Semiconductor - Diodes Division 1.5SMC110CAHM3/I
- Part No.:
- 1.5SMC110CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110CAHM3/I.pdf
- Description:
- TVS DIODE 94VWM 152VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,051
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Product details
Overview
1.5SMC110CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 110 V breakdown voltage (VBR min = 105 V, max = 116 V), 1500 W peak pulse power (10/1000 µs), clamping voltage of 152 V at 9.9 A, and operates across –65 °C to +150 °C junction temperature. It is used to protect automotive sensor interfaces, industrial I/O ports, and telecom line cards against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5SMC110CAHM3/I datasheet, 1.5SMC110CAHM3/I pinout, 1.5SMC110CAHM3/I application, or 1.5SMC110CAHM3/I equivalent, key selection criteria include bidirectional clamping behavior, SMC (DO-214AB) package compatibility, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), and compliance with UL 497B surge protector classification.
Technical Context
This device functions as a voltage-clamped shunt protector: during transient events exceeding its standoff voltage (VWM = 94.0 V), it avalanches rapidly to limit downstream voltage to ≤152 V. Its bidirectional symmetry enables use on AC-coupled or floating lines without polarity concerns.
Constructed with a glass-passivated silicon junction and housed in an SMC (DO-214AB) package, the 1.5SMC110CAHM3/I delivers low incremental surge resistance and sub-nanosecond response time. It meets J-STD-020 MSL Level 1 and is halogen-free, RoHS-compliant, and AEC-Q101 qualified per ordering suffix HM3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V - Ensures reliable avalanche initiation above normal operating voltage while maintaining margin against tolerance drift. |
| VWM | 94.0 V - Maximum continuous reverse working voltage; defines safe DC/AC operating ceiling before leakage rises significantly. |
| VC @ IPPM | 152 V at 9.9 A - Clamped voltage under 10/1000 µs surge; determines maximum stress imposed on protected ICs or MOSFETs. |
| PPPM | 1500 W - Peak pulse power handling capability; supports high-energy transients like ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 4. |
| IPPM | 9.9 A - Peak pulse current corresponding to 1500 W clamping; used to size PCB trace width and verify layout survivability. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or enclosed industrial environments. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance; informs derating requirements when mounted on standard 8 mm × 8 mm copper pads. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity assignment. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; device conducts symmetrically in both directions above VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC, differential, or floating signal paths without external polarity management circuitry. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces. |
| Halogen-free & RoHS-compliant | Meets global environmental regulations and supports lead-free reflow soldering up to 260 °C peak (MSL Level 1). |
| UL 497B recognized (QVGQ2) | Approved for use in telecom and industrial surge protection assemblies requiring certified safety compliance. |
| 1500 W peak pulse rating | Withstands high-energy transients such as lightning-induced surges (IEC 61000-4-5) and load dump spikes (ISO 7637-2). |
Applications
| Automotive Sensor Interface | Industrial Ethernet Port |
|---|---|
Use Scenario: Protecting CAN/FlexRay transceivers and analog sensor inputs (e.g., pressure, temperature) from ESD and load-dump transients in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at connector entry point to clamp fast-rising surges before they reach sensitive analog front-ends or communication ICs. Use Value: Prevents latch-up or permanent damage to microcontrollers and transceivers by limiting voltage to ≤152 V during 10/1000 µs pulses up to 9.9 A. |
Use Scenario: Safeguarding RJ45 PHY interface circuits in programmable logic controllers (PLCs) and industrial switches exposed to field wiring surges. IC Role / Device Role / Timing Role: Bidirectional TVS deployed across differential pairs (e.g., TX+/TX–, RX+/RX–) to suppress common-mode and differential-mode transients without disrupting signal integrity. Use Value: Maintains Ethernet link stability by clamping induced surges within IEEE 802.3-compliant voltage margins while surviving repetitive 1500 W pulses. |
| Telecom Line Card Protection | Consumer Power Adapter Input |
Use Scenario: Front-end surge suppression on POTS, DSL, or xPON line cards subjected to lightning-induced longitudinal surges per ITU-T K.20/K.21. IC Role / Device Role / Timing Role: Primary shunt protector located between transformer secondary and line driver IC, absorbing energy before it propagates into silicon. Use Value: Achieves UL 497B recognition and withstands multiple 1500 W transients, enabling compliance with telecom infrastructure safety standards. |
Use Scenario: Input-stage overvoltage protection in wall-mounted AC/DC adapters for smart home devices, guarding against mains-borne surges and capacitor discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after bridge rectifier but before bulk capacitor to clamp rectified surges before they overstress primary-side FETs or controllers. Use Value: Limits peak input voltage to 152 V, preventing overvoltage shutdown or failure of PWM controllers rated for ≤200 V DC input. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | Lower peak power (600 W), same VBR range (105–116 V), SMB package (smaller footprint, higher RθJA = 90 °C/W). | Not suitable for high-energy transients like ISO 7637-2 Pulse 5a; limited to consumer-grade or low-risk industrial use. | Select when board space is constrained and surge threat level is moderate (e.g., USB-powered devices). |
| 1.5KE110CA | Same 1500 W rating and VBR, but axial DO-201AE package; higher RθJA (~65 °C/W on FR4), not surface-mount compatible. | Requires through-hole assembly; unsuitable for automated SMT lines or compact PCB layouts. | Choose only for legacy through-hole designs or prototyping where rework flexibility outweighs production efficiency. |
Compared with SMBJ110CA and 1.5KE110CA, the 1.5SMC110CAHM3/I uniquely combines AEC-Q101 qualification, halogen-free compliance, SMC surface-mount form factor, and full 1500 W surge capability-making it the preferred choice for automotive and high-reliability industrial SMT applications.
Availability
1.5SMC110CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial Ethernet port hardening, and telecom line card surge suppression requiring stable component supply, long-term lifecycle support, and AEC-Q101 assurance.
Supply support for 1.5SMC110CAHM3/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 1.5SMC Series was developed to deliver high-power, surface-mount transient suppression for automotive, industrial, and telecom systems where space, thermal performance, and qualification rigor are critical design constraints.
FAQ
What does the "HM3" suffix indicate in 1.5SMC110CAHM3/I?
The HM3 suffix in 1.5SMC110CAHM3/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It confirms the device meets automotive-grade reliability testing (including temperature cycling, HTRB, and ESD), uses environmentally compliant materials, and is rated for operation up to +150 °C junction temperature-key for under-hood and industrial deployments.
Is 1.5SMC110CAHM3/I unidirectional or bidirectional?
The 1.5SMC110CAHM3/I is a bidirectional TVS diode, indicated by the "CA" suffix. It provides symmetrical clamping in both polarities, making it suitable for protecting AC-coupled lines, differential interfaces (e.g., RS-485, CAN), or floating circuits where voltage transients may swing positive or negative relative to ground.
What is the clamping voltage of 1.5SMC110CAHM3/I and why does it matter?
The clamping voltage (VC) of 1.5SMC110CAHM3/I is 152 V at 9.9 A (10/1000 µs waveform). This value represents the maximum voltage seen by downstream components during a surge event. It must be below the absolute maximum rating of protected ICs-ensuring that sensitive transceivers or microcontrollers are not subjected to destructive overvoltage stress.
Can 1.5SMC110CAHM3/I replace 1.5SMC110A in a design?
No-1.5SMC110CAHM3/I is bidirectional, whereas 1.5SMC110A is unidirectional. Substituting them requires verifying circuit topology: unidirectional devices require correct polarity placement (cathode toward positive rail), while bidirectional types eliminate polarity concerns but exhibit higher leakage at VWM. Layout and system-level surge path analysis must be repeated if swapping.
What is the thermal resistance of 1.5SMC110CAHM3/I and how does it affect layout?
The 1.5SMC110CAHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8 mm × 8 mm copper pads per terminal. This value guides PCB thermal design: larger copper areas reduce RθJA, improving surge endurance; insufficient copper may cause thermal runaway during repetitive transients or elevated ambient temperatures.
1.5SMC110CAHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 9.9A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC110CAHM3/I FAQ
1.How can I place an order for 1.5SMC110CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110CAHM3/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 1.5SMC110CAHM3/I reliable?
The price and inventory of 1.5SMC110CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC110CAHM3/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC110CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110CAHM3/I?
1.5SMC110CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110CAHM3/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 1.5SMC110CAHM3/I?
For technical support, including 1.5SMC110CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110CAHM3/I requirements.
6.How does Aetrix verify that 1.5SMC110CAHM3/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110CAHM3/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 1.5SMC110CAHM3/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC110CAHM3/I?
All 1.5SMC110CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110CAHM3/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 1.5SMC110CAHM3/I part is unused and in its original packaging.
Return procedure for 1.5SMC110CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC110CAHM3/I Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
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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