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Vishay General Semiconductor - Diodes Division 1.5SMC110CA-E3/9AT
- Part No.:
- 1.5SMC110CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110CA-E3/9AT.pdf
- Description:
- TVS DIODE 94VWM 152VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,138
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Product details
Overview
1.5SMC110CA-E3/9AT from Vishay General Semiconductor is a bidirectional surface-mount 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 widely deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5SMC110CA-E3/9AT datasheet, 1.5SMC110CA-E3/9AT pinout, 1.5SMC110CA-E3/9AT application, or 1.5SMC110CA-E3/9AT equivalent, key selection criteria include bidirectional clamping capability, SMC (DO-214AB) package compatibility, 152 V maximum clamping voltage at rated IPPM, and AEC-Q101 qualification eligibility via HE3/HM3 variants.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes. Its bidirectional architecture ensures symmetrical clamping in both polarities without polarity marking on the case.
The device delivers 1500 W peak pulse power under standardized 10/1000 µs waveform conditions with 0.01% duty cycle, and maintains stable performance up to 150 °C junction temperature. Thermal resistance is 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-leads), supporting reliable operation on standard PCB copper pads (8.0 mm × 8.0 mm per terminal).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V at 1 mA test current - defines precise voltage threshold where avalanche conduction begins in both directions |
| VWM | 94.0 V - maximum continuous reverse stand-off voltage before leakage exceeds 1 µA; sets safe operating margin below clamping |
| VC @ IPPM | 152 V at 9.9 A - clamping voltage during full 1500 W transient event; determines protected circuit's maximum stress level |
| PPPM | 1500 W - peak pulse power handling with 10/1000 µs waveform; validates suitability for automotive load-dump and telecom surge standards |
| IPPM | 9.9 A - peak pulse current corresponding to 1500 W clamping; used to size PCB trace width and verify layout survivability |
| TJ range | -65 °C to +150 °C - enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (260 °C reflow peak), RoHS-compliant (E3 suffix). Bidirectional configuration has no polarity marking; both terminals are electrically symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient conduction path | Both terminals function identically; no cathode band marking required - simplifies layout and eliminates orientation errors during assembly |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 µs) | Validates compliance with ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Level 4 surge immunity requirements |
| Clamping voltage ≤152 V at 9.9 A | Ensures downstream 100 V-rated ICs (e.g., CAN transceivers, microcontrollers) remain within absolute maximum ratings during transients |
| Glass-passivated junction | Provides stable, repeatable avalanche characteristics over lifetime and temperature; eliminates parameter drift seen in epoxy-passivated devices |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile use (peak 260 °C) without baking - reduces manufacturing overhead |
| AEC-Q101 qualification option | HE3/HM3 variants support automotive-grade reliability validation (HTOL, TCT, ESD) for engine control, ADAS, and body electronics |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog sensor inputs (e.g., pressure, temperature) in engine control units exposed to load dump and alternator ripple. IC Role / Device Role: Bidirectional TVS placed at connector interface to clamp ±100 V transients before reaching precision ADC front-end. Use Value: Prevents latch-up or permanent damage to 12-bit SAR ADCs and op-amps by limiting input voltage to ≤152 V during 1500 W surges. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers subjected to field-wiring induced surges. IC Role / Device Role: Primary transient suppressor on dry-contact input lines, mounted directly at DIN-rail terminal block entry point. Use Value: Maintains functional safety integrity by ensuring input logic remains valid (no false triggering) during 1 kV/500 A surge events per IEC 61000-4-5. |
| Telecom Power Feeding | Consumer USB Port Protection |
Use Scenario: Overvoltage protection on -48 V DC power feeds in remote radio head (RRH) base stations vulnerable to lightning coupling. IC Role / Device Role: Bidirectional clamp on DC power rail upstream of DC/DC converter, absorbing common-mode surges between power and ground. Use Value: Enables uninterrupted operation during 10/1000 µs surges up to 1500 W without derating or thermal shutdown of downstream PMICs. |
Use Scenario: Secondary-level protection on VBUS line of USB 2.0 host ports in smart home hubs exposed to ESD and hot-plug transients. IC Role / Device Role: Fast-response TVS placed after primary fuse and upstream of USB switch IC to limit VBUS excursion during ±8 kV contact ESD. Use Value: Limits VBUS overshoot to ≤152 V, preventing damage to USB PHY transceivers rated for 6 V absolute maximum while maintaining data integrity. |
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 | Same VBR range (105–116 V) and bidirectional design, but lower PPPM = 600 W in SMB (DO-214AA) package | Targeted at space-constrained consumer electronics with lower surge exposure; insufficient for automotive load dump | Select when board area is critical and surge energy is limited to <600 W (e.g., USB-C PD auxiliary rails) |
| 1.5KE110CA | Through-hole TO-204AE (DO-15) package, identical electrical specs (VBR, VC, PPPM), higher RθJA = 100 °C/W | Used in legacy industrial power supplies where manual assembly or high-reliability through-hole mounting is required | Choose for repairability, high-vibration environments, or when SMT process capability is unavailable |
Compared with SMBJ110CA and 1.5KE110CA, the 1.5SMC110CA-E3/9AT provides optimal balance of 1500 W surge capacity, SMC footprint efficiency, and automotive-ready qualification path - making it the preferred choice for new designs requiring high-energy transient resilience in compact surface-mount layouts.
Availability
1.5SMC110CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom power feeding circuits, and consumer USB port protection requiring stable component supply and long-term manufacturability.
Supply support for 1.5SMC110CA-E3/9AT 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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The 1.5SMC Series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness against ESD, lightning, and inductive switching is non-negotiable.
FAQ
What is the clamping voltage of the 1.5SMC110CA-E3/9AT under full-rated surge current?
The 1.5SMC110CA-E3/9AT exhibits a maximum clamping voltage (VC) of 152 V when subjected to its rated peak pulse current (IPPM) of 9.9 A using the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88303 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The 1.5SMC110CA-E3/9AT maintains this clamping performance across its full operating temperature range.
Is the 1.5SMC110CA-E3/9AT suitable for automotive applications?
The 1.5SMC110CA-E3/9AT itself is RoHS-compliant commercial-grade (E3 suffix), but Vishay offers AEC-Q101 qualified versions under HE3 and HM3 ordering codes (e.g., 1.5SMC110CAHE3_A). These qualified variants undergo extended reliability testing including HTOL, TCT, and ESD, making them suitable for engine control, ADAS, and body electronics. The 1.5SMC110CA-E3/9AT serves as the baseline platform for such automotive derivatives.
What does the "CA" suffix indicate in 1.5SMC110CA-E3/9AT?
The "CA" suffix in 1.5SMC110CA-E3/9AT denotes a bidirectional Transient Voltage Suppressor configuration. Unlike unidirectional "A" parts, CA devices provide symmetrical clamping in both polarities - essential for protecting AC-coupled signal lines or DC rails where polarity reversal may occur. No cathode band marking is present on the SMC package, confirming its bidirectional nature. The 1.5SMC110CA-E3/9AT leverages this symmetry to simplify layout and eliminate orientation-dependent assembly errors.
How does the 1.5SMC110CA-E3/9AT compare to the 1.5SMC110A-E3/9AT?
The 1.5SMC110CA-E3/9AT is bidirectional, while the 1.5SMC110A-E3/9AT is unidirectional - meaning the latter has a marked cathode band and conducts only in reverse bias. Their breakdown voltages (105–116 V), clamping (152 V), and peak power (1500 W) are identical, but the unidirectional version allows forward conduction and requires correct polarity placement. The 1.5SMC110CA-E3/9AT is preferred for AC or polarity-agnostic DC protection, whereas the "A" variant suits DC rails with defined ground reference.
What is the thermal resistance of the 1.5SMC110CA-E3/9AT, and how does it affect PCB layout?
The 1.5SMC110CA-E3/9AT 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 15 °C/W junction-to-leads (RθJL). This means that under 6.5 W steady-state dissipation, junction temperature rise above ambient will be ~488 °C without heatsinking - confirming that the device is intended for transient-only operation. For reliable performance, PCB layout must adhere to the recommended pad dimensions and avoid excessive copper isolation around the SMC footprint. The 1.5SMC110CA-E3/9AT relies on short-duration pulse energy absorption, not continuous thermal management.
1.5SMC110CA-E3/9AT 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-E3/9AT FAQ
1.How can I place an order for 1.5SMC110CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110CA-E3/9AT 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-E3/9AT reliable?
The price and inventory of 1.5SMC110CA-E3/9AT 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-E3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC110CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110CA-E3/9AT?
1.5SMC110CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110CA-E3/9AT 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-E3/9AT?
For technical support, including 1.5SMC110CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110CA-E3/9AT requirements.
6.How does Aetrix verify that 1.5SMC110CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110CA-E3/9AT 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-E3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC110CA-E3/9AT?
All 1.5SMC110CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110CA-E3/9AT, 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-E3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC110CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC110CA-E3/9AT Tags
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