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Vishay General Semiconductor - Diodes Division 1.5SMC110CA-M3/9AT
- Part No.:
- 1.5SMC110CA-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110CA-M3/9AT.pdf
- Description:
- TVS DIODE 94VWM 152VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:8,539
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Product details
Overview
1.5SMC110CA-M3/9AT from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 110 V standoff voltage (VWM), and clamping voltage of 152 V at 9.9 A peak pulse current. It protects signal lines and power rails in automotive sensor interfaces and industrial I/O modules against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5SMC110CA-M3/9AT datasheet, 1.5SMC110CA-M3/9AT pinout, 1.5SMC110CA-M3/9AT application, or 1.5SMC110CA-M3/9AT equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, JEDEC-compliant thermal derating curves, MSL Level 1 reflow compatibility, and halogen-free RoHS compliance per Vishay Document 88303.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical VBR (105–116 V at 1 mA), VWM (94.0 V), and VC (152 V at 9.9 A). Its glass-passivated junction ensures stable breakdown and low leakage (<1 μA at VWM), while the SMC package provides 75 °C/W junction-to-ambient thermal resistance under standard pad layout.
Designed for repetitive surge suppression, it sustains 0.01% duty cycle pulses and meets AEC-Q101 qualification when ordered with HE3/HM3 suffixes - though the -M3/9AT variant is commercial-grade halogen-free RoHS-compliant without automotive qualification. It exhibits no polarity marking and requires no orientation during placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 94.0 V - maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry |
| VBR min/max | 105 V / 116 V at 1 mA - guaranteed breakdown threshold ensuring predictable clamping onset across production lots |
| VC @ IPPM | 152 V at 9.9 A - clamped voltage during 10/1000 μs surge; limits stress on downstream ICs to safe levels |
| PPPM | 1500 W - peak pulse power handling capability under standardized waveform; enables robust protection in harsh ESD/lightning environments |
| IPPM | 9.9 A - maximum non-repetitive peak pulse current supported; determines minimum trace width and PCB copper area needed |
| TJ max | +150 °C - maximum junction temperature; sets thermal design margin for sustained operation near ambient limits |
| RθJA | 75 °C/W - thermal resistance from junction to ambient on 8 mm × 8 mm copper pads; informs heatsinking requirements |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals conduct identically during positive or negative surges; no orientation required during PCB layout or assembly |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates need for polarity-aware routing in AC-coupled or differential signal paths |
| 1500 W peak pulse rating | Handles high-energy transients from inductive load switching or lightning surges without degradation over specified duty cycle |
| Halogen-free & RoHS-compliant (-M3) | Meets environmental compliance mandates for industrial and consumer electronics without compromising surge performance |
| MSL Level 1 moisture sensitivity | Compatible with standard reflow profiles up to 260 °C peak - no baking or special handling required prior to assembly |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1 μA) over temperature and lifetime, critical for long-term reliability |
Applications
| Automotive Sensor Interface | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends from load dump and ISO 7637-2 pulses in engine control units. IC Role / Device Role / Timing Role: Bidirectional transient clamp placed directly at connector entry point to shunt surge energy before reaching sensitive interface ICs. Use Value: Maintains signal integrity by limiting clamped voltage to 152 V while surviving repeated 10/1000 μs surges up to 9.9 A. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers exposed to relay coil flyback and field wiring transients. IC Role / Device Role / Timing Role: Primary overvoltage protection device mounted adjacent to terminal block to absorb inductive kickback before reaching optocoupler input stage. Use Value: Enables reliable operation under IEC 61000-4-4 level 4 (2 kV) surge testing due to fast response and low clamping ratio (VC/VWM = 1.62). |
| Telecom Line Card Protection | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHYs and PoE injectors from induced surges on unshielded twisted-pair cabling in building infrastructure. IC Role / Device Role / Timing Role: Secondary-level TVS deployed after gas discharge tube (GDT) primary protection to handle residual fast-rising transients. Use Value: Fast response time (<1 ns) and low incremental surge resistance ensure effective clamping even after upstream GDT arc initiation. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to microcontroller GPIOs. IC Role / Device Role / Timing Role: Localized protection at motor driver output pins to prevent latch-up or gate oxide damage in MOSFET drivers. Use Value: Withstands 200 A IFSM (unidirectional only) and supports bidirectional clamping for H-bridge configurations without polarity constraints. |
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 PPPM (600 W), same VWM (94 V), smaller SMB package (DO-214AA) | Reduced surge handling capacity; suitable only for lower-energy transients or space-constrained layouts | Select when board area is limited and surge threat level is ≤ IEC 61000-4-5 0.5 kV, not for automotive load dump |
| 1.5KE110CA | Through-hole TO-218 package, same VWM/VC, higher thermal mass but incompatible with SMT assembly | Requires wave soldering or hand-soldering; unsuitable for automated high-volume production | Choose only for legacy through-hole designs or where mechanical robustness outweighs assembly efficiency |
Compared with SMBJ110CA and 1.5KE110CA, the 1.5SMC110CA-M3/9AT delivers optimal balance of 1500 W surge capability, SMT compatibility, and halogen-free compliance - making it preferred for new automotive and industrial designs requiring automated assembly and high-reliability transient immunity.
Availability
1.5SMC110CA-M3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, telecom line cards, and consumer appliance motor controls requiring stable component supply, consistent surge performance, and halogen-free compliance.
Supply support for 1.5SMC110CA-M3/9AT 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, and protection devices with emphasis on reliability, precision, 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 repeatable clamping behavior are critical design constraints.
FAQ
What does the "CA" suffix indicate in 1.5SMC110CA-M3/9AT?
The "CA" suffix in 1.5SMC110CA-M3/9AT denotes a bidirectional configuration - meaning the device clamps symmetrically for both positive and negative voltage transients, with identical breakdown and clamping characteristics in either direction. This eliminates polarity concerns during PCB layout and makes it ideal for AC-coupled or differential signal protection where surge polarity is unpredictable.
Is 1.5SMC110CA-M3/9AT qualified to AEC-Q101?
No, the 1.5SMC110CA-M3/9AT is a commercial-grade halogen-free RoHS-compliant variant. AEC-Q101 qualification applies only to versions with HE3 or HM3 suffixes (e.g., 1.5SMC110CAHE3_A), which include additional stress testing and traceability. The -M3/9AT part meets all electrical and mechanical specs in Document 88303 but lacks automotive qualification documentation.
What is the clamping voltage of 1.5SMC110CA-M3/9AT at its rated peak pulse current?
The clamping voltage (VC) of 1.5SMC110CA-M3/9AT is 152 V measured at its peak pulse current (IPPM) of 9.9 A under the standard 10/1000 μs waveform. This value is guaranteed per Vishay Document 88303 and defines the maximum voltage imposed on protected circuitry during worst-case surge events.
Can 1.5SMC110CA-M3/9AT be used in place of a unidirectional TVS like 1.5SMC110A-M3/9AT?
No - 1.5SMC110CA-M3/9AT is bidirectional and has no cathode marking, while 1.5SMC110A-M3/9AT is unidirectional with a defined cathode band. Substituting them requires verifying circuit topology: bidirectional use is mandatory for AC signals or floating references; unidirectional parts are required where DC bias or polarity-sensitive clamping is needed, such as in power rail protection with ground-referenced loads.
What PCB pad layout is recommended for optimal thermal performance of 1.5SMC110CA-M3/9AT?
Vishay specifies a minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad area per terminal for 1.5SMC110CA-M3/9AT to achieve the rated 75 °C/W junction-to-ambient thermal resistance. Using smaller pads increases thermal impedance and reduces surge current handling capability - especially critical during repetitive pulse conditions per Figure 2 derating curves in Document 88303.
1.5SMC110CA-M3/9AT 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:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC110CA-M3/9AT FAQ
1.How can I place an order for 1.5SMC110CA-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110CA-M3/9AT 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 1.5SMC110CA-M3/9AT reliable?
The price and inventory of 1.5SMC110CA-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC110CA-M3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC110CA-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110CA-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110CA-M3/9AT?
1.5SMC110CA-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110CA-M3/9AT 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 1.5SMC110CA-M3/9AT?
For technical support, including 1.5SMC110CA-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110CA-M3/9AT requirements.
6.How does Aetrix verify that 1.5SMC110CA-M3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110CA-M3/9AT 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 1.5SMC110CA-M3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC110CA-M3/9AT?
All 1.5SMC110CA-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110CA-M3/9AT, 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 1.5SMC110CA-M3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC110CA-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC110CA-M3/9AT Tags
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