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Taiwan Semiconductor Corporation 1.5SMC110
- Part No.:
- 1.5SMC110
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110.pdf
- Description:
- 1500W, 110V, 10%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:9,417
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Product details
Overview
1.5SMC110 from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 1500W peak pulse power, 99–121V breakdown voltage (VBR), and 158V maximum clamping voltage (VC) at 9.9A peak impulse current. It protects DC power rails and signal lines in telecom infrastructure and industrial control systems against ESD, lightning-induced surges, and load-switching transients.
For engineers reviewing the 1.5SMC110 datasheet, 1.5SMC110 pinout, 1.5SMC110 application, or 1.5SMC110 equivalent, this page delivers verified electrical specs, thermal resistance data (RθJA = 50°C/W), clamping performance under 10/1000μs waveform, ISO 7637-2 compliance, and real-world design context for surge immunity validation.
Technical Context
This unidirectional TVS operates with a glass-passivated junction and exhibits fast response time (<1.0 ps), low leakage (<1 μA at 89.2 V), and a temperature coefficient of VBR of 0.107%/°C. Its clamping behavior is defined per ANSI/IEEE C62.35, with non-repetitive 10/1000μs surge capability derated above 25°C ambient per Fig.2.
The device is optimized for single-die, high-energy transient suppression in DC-biased circuits. It supports steady-state power dissipation of 6.5 W at 25°C, with junction temperature range from –55°C to +150°C and moisture sensitivity level 1 per J-STD-020 - enabling standard reflow assembly without baking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 99 V / 121 V at 1.0 mA test current - defines reliable turn-on threshold across production lot and temperature |
| VWM | 89.2 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 158 V at 9.9 A - clamped voltage during 10/1000μs surge, limiting downstream IC stress |
| PPK | 1500 W - peak pulse power handling per single non-repetitive event, per Fig.5 waveform |
| RθJA | 50 °C/W - junction-to-ambient thermal resistance, critical for PCB copper area and airflow planning |
| IR @ VWM | <1 μA - ensures minimal standby current draw in battery-backed or low-power systems |
| TJ max | +150 °C - maximum junction temperature, supporting operation in enclosed industrial enclosures |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, polarity indicated by cathode band. Weight: 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction (e.g., during surge clamp in bidirectional configuration with external circuitry) | Not used in standard unidirectional TVS operation; tied to ground or low-impedance return path in protected line |
| Cathode | Protected line connection (cathode connected to line under protection, anode to ground) | Defines clamping direction: reverse-biased during overvoltage; conducts when VLINE exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR and low leakage over lifetime and humidity exposure, meeting JESD201 Class 2 whisker resistance |
| Clamping voltage ≤158 V at 9.9 A | Provides predictable overvoltage ceiling for 24/48 V DC systems, enabling robust interface IC selection (e.g., RS-485 transceivers rated to 160 V) |
| ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance | Validates suitability for automotive and industrial vehicle subsystems subject to conducted transients on power lines |
| Moisture sensitivity level 1 | Eliminates pre-bake requirement prior to reflow, reducing manufacturing cost and cycle time |
| UL 94V-0 molding compound | Meets flammability safety requirements for enclosed power supplies and telecom equipment |
Applications
| Industrial PLC I/O Protection | Telecom Power Supply Input |
|---|---|
Use Scenario: Protecting 24 V DC digital input modules in programmable logic controllers from inductive kickback and field-wiring transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input terminal and ground, clamping surges before they reach optocoupler or MCU GPIO. Use Value: Limits voltage to ≤158 V during 1 kV/50 Ω surge events, preserving isolation barrier integrity and preventing false triggering. | Use Scenario: Safeguarding primary-side DC bus (e.g., 48 V telecom rectifier output) against lightning-induced surges entering via distribution cabling. IC Role / Device Role / Timing Role: Front-end transient suppressor mounted directly at connector entry point, shunting energy before upstream DC-DC converters. Use Value: Absorbs 1500 W peak energy within 1000 μs, maintaining bus stability and avoiding brownout or shutdown of downstream loads. |
| Automotive Body Control Module | Factory Automation Sensor Interface |
Use Scenario: Protecting LIN bus or switched 12 V supply lines in body electronics exposed to ISO 7637-2 Pulse 2b (load dump) and Pulse 5b (alternator surge). IC Role / Device Role / Timing Role: Unidirectional TVS on each protected line, referenced to chassis ground, with VWM > 13.5 V nominal system voltage. Use Value: Withstands 89.2 V working stand-off and clamps to 158 V, ensuring compatibility with 12 V automotive architecture while surviving 100 V transients. | Use Scenario: Shielding analog 4–20 mA current loop inputs in industrial sensors from ESD and cable-coupled noise in noisy factory environments. IC Role / Device Role / Timing Role: TVS placed across loop terminals (line-to-line or line-to-ground), suppressing common-mode and differential transients. Use Value: Sub-1 μA leakage at 89.2 V prevents interference with precision current measurement, while 158 V clamping protects op-amp front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A (Bourns) | Same DO-214AA (SMB) package; lower PPK = 600 W; VC = 177 V @ 3.4 A | Lower energy handling limits use to lower-tier surge classes (IEC 61000-4-5 Level 2) | Select SMBJ110A only if system-level testing confirms 600 W suffices and board space favors smaller SMB footprint. |
| 1.5KE110A (ON Semiconductor) | Through-hole DO-201 package; same 1500 W rating; VC = 177 V @ 8.5 A; higher RθJA (~65°C/W) | Requires through-hole assembly; unsuitable for fully SMT designs or high-density layouts | Choose 1.5KE110A only when legacy through-hole compatibility or higher mechanical robustness is prioritized over automated placement. |
Compared with SMBJ110A and 1.5KE110A, the 1.5SMC110 offers superior energy density in surface-mount form, tighter clamping (158 V vs. ≥177 V), and lower thermal resistance - making it optimal for compact, high-reliability DC power rail protection where layout and thermal management are constrained.
Availability
1.5SMC110 is available at Aetrix Electronics and suitable for industrial PLC I/O protection, telecom power supply input hardening, and automotive body control module surge immunity requiring stable component supply and full traceability.
Supply support for 1.5SMC110 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q200 qualified product lines.
The 1.5SMC series targets high-energy, surface-mount transient suppression in industrial, telecom, and automotive applications - designed for automated assembly, ISO 7637-2 compliance, and long-term reliability under thermal cycling and humidity stress.
FAQ
What is the maximum clamping voltage of the 1.5SMC110 under standard test conditions?
The 1.5SMC110 has a maximum clamping voltage (VC) of 158 V when subjected to its rated peak impulse current of 9.9 A using the 10/1000 μs waveform per ANSI/IEEE C62.35. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream components remain within absolute maximum ratings.
Is the 1.5SMC110 suitable for bidirectional transient suppression?
No, the 1.5SMC110 is a unidirectional TVS diode. For bidirectional operation, select the 1.5SMC110A variant (marked FZJ), which provides symmetrical clamping in both polarities. The 1.5SMC110 must be installed with cathode toward the line under protection and anode to ground; reverse polarity connection will cause forward conduction and failure under normal bias.
What is the working stand-off voltage (VWM) specification for the 1.5SMC110?
The 1.5SMC110 has a working stand-off voltage (VWM) of 89.2 V, meaning it remains in high-impedance state up to this DC or RMS voltage level. Leakage current stays below 1 μA at this voltage, making it suitable for protecting 72–80 V DC systems such as 48 V telecom buses with margin, while avoiding false triggering during normal operation.
Does the 1.5SMC110 meet automotive transient standards?
Yes, the 1.5SMC110 meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements - covering key automotive transients including supply disconnection, load dump simulation, and capacitive coupling noise. Its 1500 W rating and 158 V clamping support robust protection in body control modules and infotainment power rails, though full AEC-Q200 qualification requires verification of the specific reel lot.
What is the thermal resistance profile of the 1.5SMC110, and how does it impact PCB layout?
The 1.5SMC110 has a junction-to-ambient thermal resistance (RθJA) of 50°C/W and junction-to-case (RθJC) of 15°C/W. To maintain TJ ≤ 150°C under 1500 W pulses, PCB layout must include ≥100 mm² of 2-oz copper connected to both terminals, with thermal vias to inner/ground planes. Insufficient copper area risks localized overheating and parametric shift after repeated surges.
1.5SMC110 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 89.2V
- Voltage - Breakdown (Min):
- 99V
- Voltage - Clamping (Max) @ Ipp:
- 158V
- Current - Peak Pulse (10/1000µs):
- 9.9A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC110 FAQ
1.How can I place an order for 1.5SMC110 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110 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 1.5SMC110 reliable?
The price and inventory of 1.5SMC110 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC110 is usually 5 days.
3.What payment methods are accepted for 1.5SMC110?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110?
1.5SMC110 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110 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 1.5SMC110?
For technical support, including 1.5SMC110 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110 requirements.
6.How does Aetrix verify that 1.5SMC110 is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110 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 1.5SMC110 meets industry standards.
7.What is the process for return or replacement of 1.5SMC110?
All 1.5SMC110 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110, 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 1.5SMC110 part is unused and in its original packaging.
Return procedure for 1.5SMC110:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC110 Tags
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