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Taiwan Semiconductor Corporation 1.5SMC110CH
- Part No.:
- 1.5SMC110CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110CH.pdf
- Description:
- 1500W, 110V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:8,823
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Product details
Overview
1.5SMC110CH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It features a 110V breakdown voltage (VBR = 99–121 V), 1500 W peak pulse power rating, 158 V maximum clamping voltage at 9.9 A peak impulse current, and DO-214AB (SMC) package with AEC-Q101 qualification - used in automotive infotainment power rail protection.
For engineers reviewing the 1.5SMC110CH datasheet, 1.5SMC110CH pinout, 1.5SMC110CH application, or 1.5SMC110CH equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, leakage current ≤1 µA at 89.2 V, and thermal resistance (RθJA = 50 °C/W) for board-level thermal design.
Technical Context
This TVS diode operates as a unidirectional clamping device with a glass-passivated junction and fast response time (<1.0 ps). Its electrical behavior follows the IEEE C62.35 standard, with breakdown tested using 30 ms square-wave pulses and clamping validated per the 10/1000 µs waveform defined by R.E.A.
The 1.5SMC110CH is rated for junction temperatures from –55 °C to +150 °C, supports 200 A non-repetitive forward surge (IFSM), and exhibits a temperature coefficient of VBR of 0.107 %/°C - critical for stable overvoltage protection across automotive ambient ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 99 V / 121 V - defines reliable turn-on threshold range under 1 mA test current; ensures consistent clamping onset across production units |
| VWM | 89.2 V - maximum continuous reverse operating voltage; sets safe DC bias margin before leakage rises significantly |
| VC@IPPM | 158 V at 9.9 A - peak clamped voltage during 10/1000 µs surge; determines protected circuit's maximum transient stress level |
| PPK | 1500 W - peak pulse power handling per single 1 ms event; enables robust immunity against load dump and ESD events |
| IR@VWM | ≤1 µA - ultra-low reverse leakage at working voltage; minimizes standby power loss in battery-backed systems |
| RθJA | 50 °C/W - junction-to-ambient thermal resistance; informs PCB copper area requirements for sustained surge duty cycles |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, polarity indicated by cathode band. Weight: 0.210 g. UL 94V-0 compliant molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage return path; forms clamping loop with cathode during reverse surge |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12 V supply rail); conducts avalanche current to anode when VAK exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use including engine control modules and body electronics requiring zero-failure reliability |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupled noise) without degradation |
| Glass passivated junction | Enhances long-term stability and moisture resistance vs. epoxy-passivated alternatives; supports J-STD-020 Level 1 MSL |
| Fast response time | <1.0 ps - limits voltage overshoot during nanosecond-scale ESD events (IEC 61000-4-2), protecting downstream ICs before damage occurs |
| Low clamping ratio | VC/VBR ≈ 1.34 - tight clamping margin reduces stress on protected MOSFETs, regulators, and CAN transceivers |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V supply inputs in automotive head units against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between power rail and chassis ground to shunt surge energy away from DC-DC converters and microcontrollers. Use Value: Clamps to 158 V within nanoseconds, limiting downstream voltage stress below 16 V-rated component thresholds while surviving repeated ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff protector on 24 V dry-contact inputs, absorbing inductive kickback from solenoid drivers and relay coils. Use Value: Blocks ≤1 µA at 89.2 V standby, eliminating false triggering; clamps 9.9 A transients to 158 V, preserving optocoupler and FPGA I/O integrity. |
| Telecom Line Interface Protection | Consumer Power Adapter Output Protection |
Use Scenario: Shielding Ethernet PHY power pins and auxiliary rails in PoE-powered switches from lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS on 3.3 V/5 V bias rails feeding magnetics and PHY ICs, coordinated with primary GDT/MOV stages. Use Value: Sub-1 ps response captures fast-rising edge of induced surges; 1500 W rating handles residual energy passing through front-end filtering. |
Use Scenario: Securing 12 V output of wall-mounted AC/DC adapters used in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Final-stage overvoltage limiter on regulated output, preventing latch-up or burnout of connected SoCs during capacitor failure or feedback loop loss. Use Value: 89.2 V VWM allows full regulation margin; 158 V VC ensures connected devices remain within absolute maximum ratings even during worst-case fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A | DO-214AA (SMB) package; lower PPK = 600 W; VC = 177 V @ 5.3 A | Lower surge capacity suits consumer-grade 12 V rails but insufficient for automotive load dump | Select when space-constrained layouts require smaller footprint and surge energy is limited to <600 W |
| 1.5KE110A | DO-201AE (Axial) through-hole; same VBR/VC specs; PPK = 1500 W; no AEC-Q101 qualification | Lacks automotive qualification and surface-mount compatibility; higher RθJA (~65 °C/W) | Use only in non-automotive industrial equipment where manual assembly and legacy footprint are acceptable |
Compared with SMBJ110A and 1.5KE110A, the 1.5SMC110CH uniquely combines AEC-Q101 qualification, SMC package for automated placement, and full 1500 W capability - making it the preferred choice for automotive and high-reliability surface-mount designs where both regulatory compliance and surge margin are mandatory.
Availability
1.5SMC110CH is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial PLC I/O modules, and telecom power interface circuits requiring stable component supply, AEC-Q101 traceability, and DO-214AB packaging.
Supply support for 1.5SMC110CH 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 MOSFETs for industrial and automotive markets.
The 1.5SMC series was developed specifically for high-power, surface-mount transient suppression in harsh environments - emphasizing AEC-Q101 reliability, ISO 7637-2 compliance, and tight parametric distribution across voltage grades like 1.5SMC110CH.
FAQ
What is the polarity configuration of the 1.5SMC110CH?
The 1.5SMC110CH is a unidirectional TVS diode with cathode-band marking indicating the high-side terminal. When reverse-biased above its 99–121 V breakdown range, it conducts avalanche current from cathode to anode, clamping transients on positive rails. It must not be used in bidirectional configurations unless paired with a complementary device.
Does the 1.5SMC110CH meet automotive qualification standards?
Yes, the 1.5SMC110CH is AEC-Q101 qualified and explicitly tested per automotive stress requirements including temperature cycling, highly accelerated life testing (HALT), and ESD robustness. Its qualification supports deployment in engine control units, body control modules, and ADAS power domains where zero latent failure is mandated.
What is the maximum clamping voltage of the 1.5SMC110CH under surge conditions?
The 1.5SMC110CH has a maximum clamping voltage (VC) of 158 V at 9.9 A peak impulse current (IPPM) under the standardized 10/1000 µs waveform. This value is guaranteed across temperature and production lots, ensuring predictable protection margins for downstream 16 V-rated components.
How does the 1.5SMC110CH compare to the 1.5SMC110AH variant?
The 1.5SMC110AH offers tighter breakdown voltage tolerance (105–116 V vs. 99–121 V for 1.5SMC110CH) and slightly lower clamping voltage (152 V vs. 158 V). The 1.5SMC110CH provides broader VBR coverage ideal for cost-sensitive applications where nominal 110 V operation allows margin for manufacturing spread and aging drift.
Is the 1.5SMC110CH compatible with lead-free reflow soldering processes?
Yes, the 1.5SMC110CH uses matte tin-plated leads compliant with J-STD-002 solderability standards and rated for lead-free reflow profiles up to 260 °C peak temperature. Its DO-214AB package meets IPC/JEDEC J-STD-020 moisture sensitivity level 1, allowing unlimited floor life without dry-pack requirements.
1.5SMC110CH 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC110CH FAQ
1.How can I place an order for 1.5SMC110CH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110CH 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 1.5SMC110CH reliable?
The price and inventory of 1.5SMC110CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC110CH is usually 5 days.
3.What payment methods are accepted for 1.5SMC110CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110CH?
1.5SMC110CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110CH 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 1.5SMC110CH?
For technical support, including 1.5SMC110CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110CH requirements.
6.How does Aetrix verify that 1.5SMC110CH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110CH 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 1.5SMC110CH meets industry standards.
7.What is the process for return or replacement of 1.5SMC110CH?
All 1.5SMC110CH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110CH, 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 1.5SMC110CH part is unused and in its original packaging.
Return procedure for 1.5SMC110CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC110CH Tags
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