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Taiwan Semiconductor Corporation 1.5SMC110C
- Part No.:
- 1.5SMC110C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110C.pdf
- Description:
- 1500W, 110V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:9,634
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Product details
Overview
1.5SMC110C from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 1500W peak pulse power, 110V breakdown voltage (99–121V), and 158V maximum clamping voltage at 9.9A peak impulse current. It protects telecom and industrial power rails against ESD, lightning surges, and load-switch transients.
For engineers reviewing the 1.5SMC110C datasheet, 1.5SMC110C pinout, 1.5SMC110C application, or 1.5SMC110C equivalent, key selection criteria include working stand-off voltage (89.2V), leakage current (<1µA at VWM), clamping ratio (VC/VBR ≈ 1.43), and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive-grade surge immunity.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast response (<1.0ps) and low capacitance, enabling effective suppression of sub-nanosecond ESD events without signal distortion. Its unidirectional configuration provides asymmetric conduction-low forward voltage (~3.5V @ 50A) only in forward bias, while blocking up to 89.2V in reverse stand-off mode.
The device operates across –55°C to +150°C junction temperature, with thermal resistance RθJA = 50°C/W and RθJC = 15°C/W, supporting high-reliability placement on thermally constrained PCBs. It meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements for SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000µs) | 1500W - sustains automotive load-dump and ISO 7637-2 Pulse 5a surges without failure |
| Breakdown Voltage VBR @ IT=1mA | 99–121V - ensures reliable triggering above system nominal voltage (e.g., 72–96V DC rails) |
| Working Stand-off Voltage VWM | 89.2V - defines maximum continuous reverse operating voltage before leakage exceeds 1µA |
| Maximum Clamping Voltage VC @ IPPM=9.9A | 158V - limits protected circuit voltage during worst-case 10/1000µs surge |
| Junction Temperature Range | –55°C to +150°C - supports operation in under-hood automotive and industrial ambient environments |
| Leakage Current IR @ VWM | <1µA - prevents excessive standby power loss in always-on systems |
| Response Time | <1.0ps - clamps ESD events faster than IC input protection structures can be damaged |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, polarity indicated by cathode band. Weight: 0.210g. Moisture sensitivity level: J-STD-020 Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to lower-potential side of protected line; conducts surge current to ground when forward-biased |
| Cathode | Reverse-blocking / clamping terminal | Connects to higher-potential side (e.g., +12V rail); initiates avalanche breakdown when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated for automotive electronics immunity without external filtering components |
| RoHS & halogen-free (IEC 61249-2-21) | Meets global environmental regulations for consumer, telecom, and industrial end equipment |
| Automated placement compatibility | DO-214AB footprint and lead finish support high-yield pick-and-place and reflow soldering |
Applications
| Automotive Infotainment Power Rail | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protects 12V/24V supply inputs of head units and display modules from battery transients and alternator load dump. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp positive-going surges. Use Value: Limits clamped voltage to 158V, well below typical 36V-rated DC-DC converter input max ratings, preventing overvoltage damage. |
Use Scenario: Shields 24V digital input channels of programmable logic controllers from field-wiring induced surges and ESD. IC Role / Device Role / Timing Role: Standoff protector on dry-contact or optocoupler input side, absorbing energy before signal conditioning circuitry. Use Value: Sub-1µA leakage avoids false triggering of high-impedance input comparators; fast <1ps response preserves signal integrity. |
| Telecom Base Station DC Feeds | Smart Meter AC/DC Power Supply Input |
Use Scenario: Safeguards 48V DC power inputs of remote radio units and backhaul equipment against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level surge suppressor mounted at board edge, upstream of bulk capacitors and DC-DC stages. Use Value: 1500W rating handles multi-kA indirect lightning currents; 89.2V VWM allows margin above 48V nominal with ripple and tolerance. |
Use Scenario: Guards primary-side rectified input (≈340V DC) of switch-mode power supplies in utility meters against mains-borne transients. IC Role / Device Role / Timing Role: Secondary-stage TVS after MOV, providing precise clamping where MOV let-through voltage is too high. Use Value: 158V clamping at 9.9A enables coordination with upstream 275V MOVs, reducing stress on bridge rectifier and bulk capacitor. |
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; 110V VBR, 1000W PPK, 177V VC @ 5.6A | Lower power rating and higher clamping voltage limit use to less severe surge environments | Select when board space constraints favor SMB footprint and 1000W surge immunity suffices |
| P6SMB110CA (Littelfuse) | Bidirectional variant (CA suffix); same VBR/VC specs but symmetrical clamping for AC-coupled or floating lines | Required for differential or bipolar signal lines where reverse polarity surges occur | Choose only if bidirectional protection is needed; otherwise 1.5SMC110C offers superior unidirectional performance |
Compared with SMBJ110A and P6SMB110CA, the 1.5SMC110C delivers 50% higher peak power (1500W vs. 1000W), tighter clamping (158V vs. 177V), and DO-214AB's larger thermal mass-making it preferred for demanding automotive and industrial DC rail protection where sustained surge energy must be absorbed without derating.
Availability
1.5SMC110C is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial PLC I/O modules, and telecom base station power supplies requiring stable component supply and full ISO 7637-2 compliance.
Supply support for 1.5SMC110C 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, and power devices since 1979.
The 1.5SMC series was designed specifically for high-energy, surface-mount transient suppression in automotive, industrial, and telecom infrastructure-emphasizing robustness, repeatable clamping, and automated assembly readiness.
FAQ
What is the polarity configuration of the 1.5SMC110C?
The 1.5SMC110C is a unidirectional TVS diode, with cathode marked by a band on the DO-214AB package. It blocks up to 89.2V in reverse bias and conducts surge current to ground when reverse voltage exceeds its 99–121V breakdown range. Forward voltage is ~3.5V at 50A, confirming its intended use on positive DC rails.
Does the 1.5SMC110C meet automotive surge immunity standards?
Yes, the 1.5SMC110C is explicitly rated to meet ISO 7637-2 Pulse 1 (inductive load disconnect), Pulse 2a/2b (battery feed interruption), and Pulse 3a/3b (capacitive coupling), making it suitable for 12V/24V automotive ECUs, infotainment, and body control modules per OEM requirements.
What is the maximum clamping voltage of the 1.5SMC110C under standard test conditions?
The 1.5SMC110C has a maximum clamping voltage (VC) of 158V at 9.9A peak impulse current (IPPM) using the 10/1000µs waveform. This value is guaranteed across temperature and ensures protected downstream components see no more than 158V during worst-case surge events.
Can the 1.5SMC110C be used in bidirectional signal lines?
No-the 1.5SMC110C is unidirectional only. For bidirectional protection (e.g., RS-485, CAN, or AC lines), select the 1.5SMC110CA variant, which features symmetrical breakdown and clamping in both polarities. Using 1.5SMC110C on bidirectional paths risks forward conduction and latch-up during negative transients.
What is the thermal resistance and maximum junction temperature of the 1.5SMC110C?
The 1.5SMC110C has a junction-to-ambient thermal resistance (RθJA) of 50°C/W and junction-to-case (RθJC) of 15°C/W. Its absolute maximum junction temperature is +150°C, with operational capability from –55°C to +150°C-enabling use in engine bay, industrial enclosures, and outdoor telecom cabinets.
1.5SMC110C 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:
- -
- Bidirectional Channels:
- 1
- 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)
1.5SMC110C FAQ
1.How can I place an order for 1.5SMC110C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110C 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 1.5SMC110C reliable?
The price and inventory of 1.5SMC110C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC110C is usually 5 days.
3.What payment methods are accepted for 1.5SMC110C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110C?
1.5SMC110C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110C 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 1.5SMC110C?
For technical support, including 1.5SMC110C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110C requirements.
6.How does Aetrix verify that 1.5SMC110C is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110C 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 1.5SMC110C meets industry standards.
7.What is the process for return or replacement of 1.5SMC110C?
All 1.5SMC110C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110C, 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 1.5SMC110C part is unused and in its original packaging.
Return procedure for 1.5SMC110C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC110C Tags
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Diodes Incorporated
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