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Vishay General Semiconductor - Diodes Division 1.5SMC110CAHE3/9AT
- Part No.:
- 1.5SMC110CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110CAHE3/9AT.pdf
- Description:
- TVS DIODE 94VWM 152VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:4,172
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Product details
Overview
1.5SMC110CAHE3/9AT 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), 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 AEC-Q101 qualified and packaged in SMC (DO-214AB) for automotive-grade reliability in DC bus and sensor interface protection.
For engineers reviewing the 1.5SMC110CAHE3/9AT datasheet, 1.5SMC110CAHE3/9AT pinout, 1.5SMC110CAHE3/9AT application, or 1.5SMC110CAHE3/9AT equivalent, key selection criteria include bidirectional clamping capability, 152 V max clamping at rated IPPM, AEC-Q101 qualification status, SMC package thermal resistance (RθJL = 15 °C/W), and compliance with UL 497B surge protector classification.
Technical Context
This device implements a silicon avalanche diode structure with glass-passivated junction, enabling sub-nanosecond response to transients and low incremental surge resistance. Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating polarity sensitivity in AC-coupled or floating lines.
Rated for 1500 W peak pulse power under standardized 10/1000 µs waveform and derated above 25 °C per Fig. 2, it supports repetitive surge duty cycles up to 0.01 % and withstands 200 A unidirectional IFSM (8.3 ms half-sine), though bidirectional operation excludes forward surge rating. Thermal design relies on RθJA = 75 °C/W (on 8 mm × 8 mm copper pads) and RθJL = 15 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V at 1 mA - defines reliable avalanche initiation threshold under transient stress |
| VWM | 94.0 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 152 V at 9.9 A - clamping voltage limiting downstream component stress during 1500 W surge |
| PPPM | 1500 W (10/1000 µs) - peak transient energy absorption capacity without failure |
| TJ range | -65 °C to +150 °C - enables deployment in under-hood automotive and industrial environments |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements (HTOL, TCT, etc.) |
| Package | SMC (DO-214AB) - surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
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).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | One terminal of symmetrical avalanche junction; no polarity marking required |
| Cathode | Transient current exit (bidirectional) | Second terminal of symmetrical junction; functionally identical to Anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and leakage performance in both directions - simplifies layout on AC or floating lines |
| 1500 W peak pulse rating | Withstands high-energy surges (e.g., ISO 7637-2 Pulse 5a) without degradation when mounted per recommended pad layout |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and high-temperature operating life |
| Low clamping ratio (VC/VBR) | 1.45 (152 V / 105 V) - minimizes overvoltage stress on protected ICs compared to higher-ratio TVS devices |
| MSL Level 1 handling | Compatible with standard SMT reflow profiles up to 260 °C peak - eliminates moisture sensitivity concerns |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Primary shunt clamp placed upstream of DC-DC converters and microcontrollers. Use Value: Limits transient voltage to ≤152 V, preventing latch-up or gate oxide damage in downstream MOSFETs and PMICs. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules exposed to EFT and surge. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pair or single-ended signal line near connector. Use Value: Clamps ±152 V spikes within <1 ns, preserving signal integrity and avoiding ADC saturation or op-amp input stage damage. |
| Telecom DC Power Feeds | Consumer Equipment AC/DC Input Stage |
Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras) from induced surges on 48 V DC supply lines. IC Role / Device Role / Timing Role: Secondary-level TVS after primary MOV, absorbing residual fast-rising transients. Use Value: Provides precise 94 V standoff and 152 V clamping-tighter tolerance than MOVs-ensuring safe operation of IEEE 802.3af/at circuitry. |
Use Scenario: Overvoltage suppression on secondary-side 12–24 V rails in SMPS for smart home hubs and displays. IC Role / Device Role / Timing Role: Final-stage transient guard before LDOs and USB controllers. Use Value: Prevents system reset or brownout caused by coupling from primary-side switching noise or external ESD events. |
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 VBR (105–116 V), SMB package (smaller footprint, higher RθJA) | Not suitable for ISO 7637-2 Pulse 5a; limited to lower-energy transients (IEC 61000-4-5 Level 3) | Select when board space is constrained and surge energy is ≤600 W; verify thermal margin with RθJA = 100 °C/W. |
| 1.5KE110CA | Same VBR and PPPM, but through-hole DO-201 package - no SMT compatibility | Requires wave soldering or hand assembly; incompatible with automated SMT lines | Choose only for legacy through-hole designs or prototyping where rework flexibility outweighs production efficiency. |
Compared with SMBJ110CA and 1.5KE110CA, the 1.5SMC110CAHE3/9AT delivers automotive-grade reliability in an SMT-optimized package with superior thermal conduction (RθJL = 15 °C/W) and full AEC-Q101 validation-making it the preferred choice for volume automotive and industrial production where surge robustness and process compatibility are jointly critical.
Availability
1.5SMC110CAHE3/9AT is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, telecom power feeds, and consumer power supply secondary rails requiring stable component supply and AEC-Q101 assurance.
Supply support for 1.5SMC110CAHE3/9AT 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 high-reliability and automotive-grade solutions.
The 1.5SMC Series was developed specifically for high-power transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where 1500 W surge handling and AEC-Q101 compliance are mandatory.
FAQ
What does the "CA" suffix indicate in 1.5SMC110CAHE3/9AT?
The "CA" suffix in 1.5SMC110CAHE3/9AT denotes a bidirectional configuration - meaning the device provides symmetrical transient voltage suppression in both polarities, with identical breakdown and clamping characteristics regardless of voltage polarity applied. This eliminates the need for polarity-aware placement and makes it ideal for AC-coupled or floating signal lines where direction of surge is unpredictable.
Is 1.5SMC110CAHE3/9AT suitable for ISO 7637-2 Pulse 5a compliance testing?
Yes, 1.5SMC110CAHE3/9AT is rated for 1500 W peak pulse power with a 10/1000 µs waveform and is AEC-Q101 qualified - key requirements for surviving ISO 7637-2 Pulse 5a (load dump) transients in automotive 12 V systems. When mounted per the recommended 8 mm × 8 mm copper pad layout, it maintains clamping below 152 V at 9.9 A, ensuring downstream components remain within safe operating limits.
How does the HE3 suffix affect the specifications of 1.5SMC110CAHE3/9AT?
The HE3 suffix in 1.5SMC110CAHE3/9AT indicates RoHS-compliant construction with AEC-Q101 qualification - distinguishing it from commercial-grade E3 variants. This includes extended reliability testing (e.g., HTOL, TCT, HAST), tighter parametric screening, and traceability to automotive-grade manufacturing lots, while retaining identical electrical specs (VBR, VC, PPPM) as the base 1.5SMC110CA part.
What is the maximum allowable PCB pad size for optimal thermal performance of 1.5SMC110CAHE3/9AT?
For optimal thermal performance, 1.5SMC110CAHE3/9AT should be mounted on minimum recommended copper pads: 0.31" × 0.31" (8.0 mm × 8.0 mm) per terminal, as specified in the Vishay datasheet. Larger pads improve heat dissipation and sustain higher surge repetition rates; reducing pad area increases junction temperature rise and may derate peak pulse power beyond the published 1500 W rating.
Does 1.5SMC110CAHE3/9AT have UL recognition, and if so, what standard does it meet?
Yes, 1.5SMC110CAHE3/9AT carries Underwriters Laboratories (UL) recognition under file number E136766 for both unidirectional and bidirectional configurations, meeting UL 497B - the Standard for Safety of Protectors for Data Communications and Fire-Alarm Circuits. This certification validates its suitability for use in telecom, fire alarm, and other safety-critical signal-line protection applications.
1.5SMC110CAHE3/9AT 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:
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC110CAHE3/9AT FAQ
1.How can I place an order for 1.5SMC110CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110CAHE3/9AT 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 1.5SMC110CAHE3/9AT reliable?
The price and inventory of 1.5SMC110CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC110CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC110CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110CAHE3/9AT?
1.5SMC110CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110CAHE3/9AT 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 1.5SMC110CAHE3/9AT?
For technical support, including 1.5SMC110CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110CAHE3/9AT requirements.
6.How does Aetrix verify that 1.5SMC110CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110CAHE3/9AT 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 1.5SMC110CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC110CAHE3/9AT?
All 1.5SMC110CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110CAHE3/9AT, 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 1.5SMC110CAHE3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC110CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC110CAHE3/9AT Tags
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