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Vishay General Semiconductor - Diodes Division 1.5SMC110A-E3/9AT
- Part No.:
- 1.5SMC110A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110A-E3/9AT.pdf
- Description:
- TVS DIODE 94VWM 152VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,797
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Product details
Overview
1.5SMC110A-E3/9AT from Vishay General Semiconductor is a unidirectional 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 = 105–116 V at 1.0 mA), clamps transients to ≤152 V at 9.9 A peak pulse current (10/1000 μs), and delivers 1500 W peak pulse power. It is used to protect MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients in industrial and automotive systems.
For engineers reviewing the 1.5SMC110A-E3/9AT datasheet, 1.5SMC110A-E3/9AT pinout, 1.5SMC110A-E3/9AT application, or 1.5SMC110A-E3/9AT equivalent, key selection criteria include standoff voltage (VWM = 94.0 V), clamping performance (VC = 152 V @ IPPM), thermal resistance (RθJA = 75 °C/W), RoHS-compliant SMC (DO-214AB) packaging, and AEC-Q101 qualification eligibility via HE3 suffix variants.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to shunt transient energy away from sensitive downstream circuitry. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1.0 μA at VWM), while the low incremental surge resistance enables rapid clamping response under 10/1000 μs waveforms.
The device is rated for 1500 W peak pulse power with 0.01% duty cycle, derated linearly above TA = 25 °C per Fig. 2, and supports operating junction temperatures from –65 °C to +150 °C. Its SMC (DO-214AB) package meets UL 94 V-0 flammability and J-STD-020 MSL Level 1 reflow requirements (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V at 1.0 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 94.0 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 152 V at 9.9 A (10/1000 μs) - clamping voltage limiting stress on protected ICs during surge events |
| PPPM | 1500 W - peak transient power handling capacity under standardized surge waveform |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, critical for PCB pad layout and power derating |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive or industrial environments |
| Package | SMC (DO-214AB) - surface-mount outline with 0.305" × 0.320" footprint, compatible with automated placement |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads; polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge (e.g., ESD event polarity reversal) |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side; initiates breakdown when reverse voltage exceeds VBR, diverting surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables protection against high-energy transients such as ISO 7637-2 Pulse 5a without external series impedance |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes voltage overshoot across protected components, preserving margin for 12 V or 24 V system ICs |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage (<1 μA) across temperature and lifetime |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without pre-baking or special handling |
| RoHS-compliant, halogen-free option available | Meets environmental compliance requirements for consumer, industrial, and automotive end equipment |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp positive-going surges. Use Value: Clamps to 152 V within nanoseconds, preventing damage to 36 V-rated DC-DC converters and microcontrollers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS connected across differential signal pair or single-ended output to ground. Use Value: Low capacitance (<100 pF typical) avoids signal integrity degradation while suppressing ±8 kV contact ESD per IEC 61000-4-2. |
| Telecom DC Power Input Protection | Consumer Equipment AC/DC Adapter Output Protection |
|
Use Scenario: Safeguarding PoE-powered switches and base stations against lightning-induced surges on 48 V DC input rails. IC Role / Device Role / Timing Role: Primary-level TVS on DC input, upstream of DC-DC regulation and hot-swap controllers. Use Value: 1500 W rating handles multi-kA induced surges; 94 V VWM allows compatibility with 48 V nominal telecom systems. |
Use Scenario: Preventing failure of USB-C PD or legacy 5 V/12 V adapter outputs due to user-induced short-circuits or plug-in transients. IC Role / Device Role / Timing Role: TVS placed at adapter output connector to absorb fast-rising transients before reaching downstream devices. Use Value: Fast response time and low VC ensure downstream USB controllers and charging ICs remain within absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A-E3/52T | Lower PPPM (600 W), same VBR range, SMB (DO-214AA) package (smaller footprint, higher RθJA) | Best suited for space-constrained, lower-energy applications where 1500 W headroom is unnecessary | Select when board area is limited and surge threat level is defined by IEC 61000-4-5 Level 3 (0.5 kV/1.0 kV) |
| 1.5KE110A-T | Through-hole TO-204AE (DO-15) package, identical electrical specs but incompatible with SMT assembly | Used in legacy designs or prototyping where manual soldering or socketing is acceptable | Choose only if SMT process is unavailable or if mechanical robustness under vibration justifies through-hole mounting |
Compared with 1.5SMC110A-E3/9AT, SMBJ110A-E3/52T trades peak power and thermal performance for compactness, while 1.5KE110A-T retains full electrical equivalence but requires PCB redesign for through-hole assembly-neither is pin-compatible, and both demand layout validation for thermal and surge path integrity.
Availability
1.5SMC110A-E3/9AT is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom DC input safeguarding requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 1.5SMC110A-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, and protection devices with emphasis on reliability, precision, and application-specific optimization.
The 1.5SMC Series was engineered for high-power, surface-mount transient suppression in harsh environments-targeting automotive, industrial, and telecom systems where robustness, repeatability, and AEC-Q101 qualification readiness are mandatory.
FAQ
What is the standoff voltage (VWM) of the 1.5SMC110A-E3/9AT?
The 1.5SMC110A-E3/9AT has a maximum reverse standoff voltage (VWM) of 94.0 V at 25 °C. This value ensures the device remains non-conductive under normal operating conditions while allowing up to 1.0 μA leakage current. It is selected to provide sufficient margin below the 110 V breakdown threshold and aligns with 96 V nominal industrial or 12 V automotive load-dump protection schemes where sustained overvoltage must be tolerated without conduction.
Is the 1.5SMC110A-E3/9AT RoHS-compliant and halogen-free?
Yes, the 1.5SMC110A-E3/9AT carries the "E3" suffix, indicating it is RoHS-compliant per EU Directive 2011/65/EU and meets Vishay's commercial-grade material specifications. It is not halogen-free; for halogen-free compliance, the "M3" suffix variant (e.g., 1.5SMC110A-M3/9AT) must be specified. Both E3 and M3 versions satisfy JESD201 Class 2 whisker resistance and J-STD-002 solderability standards.
Does the 1.5SMC110A-E3/9AT have AEC-Q101 qualification?
The base 1.5SMC110A-E3/9AT is not AEC-Q101 qualified; however, Vishay offers AEC-Q101-qualified versions under the "HE3" suffix (e.g., 1.5SMC110AHE3_A/I). These variants undergo additional stress testing including temperature cycling, HTRB, and ESD per AEC-Q101 Rev D and are marked with "HE3" and revision code (e.g., "A"). The E3 version remains suitable for commercial and industrial applications where automotive qualification is not mandated.
What is the clamping voltage (VC) of the 1.5SMC110A-E3/9AT under surge conditions?
The 1.5SMC110A-E3/9AT clamps to a maximum of 152 V when subjected to its rated 9.9 A peak pulse current (IPPM) under the standard 10/1000 μs double-exponential waveform. This clamping voltage is measured at the device terminals with recommended 8.0 mm × 8.0 mm copper pads per terminal, ensuring realistic thermal and electrical boundary conditions. It defines the upper voltage limit imposed on protected circuitry during transient events.
Can the 1.5SMC110A-E3/9AT be used in bidirectional configurations?
No-the 1.5SMC110A-E3/9AT is a unidirectional TVS diode, identifiable by its cathode band marking. For bidirectional protection, Vishay specifies the "CA" suffix (e.g., 1.5SMC110CA-E3/9AT), which provides symmetrical clamping in both polarities. Using the unidirectional 1.5SMC110A-E3/9AT in reverse-biased configurations risks permanent damage due to forward conduction during negative transients exceeding its 3.5 V forward voltage rating at 100 A.
1.5SMC110A-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:
- 1
- Bidirectional Channels:
- -
- 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)
1.5SMC110A-E3/9AT FAQ
1.How can I place an order for 1.5SMC110A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110A-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 1.5SMC110A-E3/9AT reliable?
The price and inventory of 1.5SMC110A-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 1.5SMC110A-E3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC110A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110A-E3/9AT?
1.5SMC110A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110A-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 1.5SMC110A-E3/9AT?
For technical support, including 1.5SMC110A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110A-E3/9AT requirements.
6.How does Aetrix verify that 1.5SMC110A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110A-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 1.5SMC110A-E3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC110A-E3/9AT?
All 1.5SMC110A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110A-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 1.5SMC110A-E3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC110A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC110A-E3/9AT Tags
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