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Taiwan Semiconductor Corporation 1.5SMC100CH
- Part No.:
- 1.5SMC100CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC100CH.pdf
- Description:
- 1500W, 100V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:2,711
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Product details
Overview
1.5SMC100CH from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power lines. It delivers 1500W peak pulse power, 100V breakdown voltage (90–110V range), clamps to ≤144V at 10.9A, and features DO-214AB (SMC) package with AEC-Q101 qualification for under-hood electronics.
For engineers reviewing the 1.5SMC100CH datasheet, 1.5SMC100CH pinout, 1.5SMC100CH application, or 1.5SMC100CH equivalent, key selection criteria include unidirectional vs. bidirectional polarity (CH suffix denotes bidirectional), clamping voltage margin versus system rail, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and thermal derating above 25°C ambient.
Technical Context
The 1.5SMC100CH uses a glass-passivated silicon junction optimized for fast transient response (<1.0 ps) and low leakage (<1 µA at 81 V). Its bidirectional configuration enables symmetrical clamping on AC lines or differential buses without polarity sensitivity.
It meets ISO 7637-2 test pulses for automotive load-dump and inductive switching transients, with thermal resistance of RθJA = 50°C/W and RθJC = 15°C/W - critical for sustained surge handling in enclosed enclosures or high-temperature PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR Min/Max | 90 V / 110 V - defines minimum and maximum guaranteed breakdown threshold at 1 mA test current; ensures consistent turn-on across production lots |
| VWM | 81.0 V - maximum continuous reverse operating voltage; must exceed system nominal voltage (e.g., 72 V DC bus) to prevent leakage conduction |
| VC @ IPPM | 144 V - clamping voltage at 10.9 A peak impulse; determines worst-case overvoltage seen by protected ICs during ISO 7637-2 Pulse 5a |
| PPK | 1500 W - peak pulse power rating per 10/1000 µs waveform; defines single-event surge energy absorption capability |
| IPPM | 10.9 A - maximum non-repetitive peak current; used with VC to calculate worst-case power dissipation in TVS during transient |
| TJ Max | +150 °C - maximum junction temperature; sets upper limit for thermal design and derating curves in high-ambient environments |
| Package | DO-214AB (SMC) - industry-standard surface-mount outline with 7.11 mm × 6.22 mm footprint and 2.3 mm height; compatible with automated pick-and-place |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with two coplanar matte tin-plated leads, cathode band marking for unidirectional variants; 1.5SMC100CH is bidirectional - no polarity marking required, symmetric terminal function.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Surge current path | Both terminals serve identical clamping roles; interchangeable in circuit layout - no orientation dependency |
| Case (plastic body) | Thermal interface | No electrical connection; provides mechanical mounting and contributes to RθJA = 50°C/W via PCB copper area and solder joint thermal mass |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for engine control, ADAS, and body electronics |
| ISO 7637-2 compliant | Withstands defined load-dump (Pulse 5a), supply interruption (Pulse 2b), and coupled transients (Pulses 1, 3a, 3b) without degradation |
| Glass passivated junction | Enables stable VBR tolerance and low IR drift over lifetime; eliminates risk of metallization corrosion in humid environments |
| Fast response time <1.0 ps | Clamps before sensitive downstream components (e.g., CAN transceivers, microcontrollers) experience damaging overvoltage stress |
| Moisture sensitivity level 1 | No floor-life limitation or bake requirement prior to reflow - simplifies SMT manufacturing and inventory management |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 24 V/48 V battery-fed ECUs against load dump and alternator transients in commercial vehicles. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and LDO regulators. Use Value: Limits transient voltage to ≤144 V during ISO 7637-2 Pulse 5a (120 V, 400 ms), preventing damage to 150 V-rated MOSFETs and gate drivers. | Use Scenario: Safeguarding analog input channels (4–20 mA, 0–10 V) in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Bidirectional front-end protection element on signal lines interfacing with long cables or inductive sensors. Use Value: Symmetric clamping prevents reverse-bias damage during negative-going transients while maintaining <1 µA leakage at 81 V working voltage. |
| Telecom Line Interface | Renewable Energy Inverter Control |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs connected to outdoor telecom cabinets subject to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS placed after gas discharge tube (GDT) primary protection. Use Value: Fast <1.0 ps response complements slower GDTs by clamping residual overshoot below IC absolute maximum ratings (e.g., ±15 V for RS-485). | Use Scenario: Protecting microcontroller GPIOs and isolated gate drivers in solar inverter control boards from grid-switching transients. IC Role / Device Role / Timing Role: Localized surge suppression on auxiliary power rails (e.g., 100 V bias for SiC driver stages). Use Value: 1500 W peak power rating handles repetitive 10/1000 µs surges common in grid-tied inverters without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA | 600 W peak power, SMB package (smaller footprint), higher VC = 166 V at 6.1 A | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a compliance | Select when board space is constrained and surge energy is ≤600 W |
| 1.5KE100CA | Through-hole DO-201 package, same 1500 W rating, but slower response (~1 ns) and no AEC-Q101 qualification | Not suitable for automotive SMT production or high-reliability vibration environments | Select only for legacy through-hole designs where rework flexibility outweighs automotive qualification needs |
Compared with SMBJ100CA and 1.5KE100CA, the 1.5SMC100CH uniquely combines AEC-Q101 qualification, 1500 W capability in surface-mount form, and bidirectional symmetry - making it the preferred choice for new automotive and industrial SMT designs requiring robust, standardized surge immunity.
Availability
1.5SMC100CH is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC I/O modules, telecom line interfaces, and renewable energy inverter control requiring stable component supply and full traceability.
Supply support for 1.5SMC100CH 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-Q101-compliant production lines.
The 1.5SMC series was developed specifically for high-reliability surface-mount surge protection in automotive and industrial environments, emphasizing ISO 7637-2 compliance, thermal robustness, and automated assembly compatibility.
FAQ
What does the 'CH' suffix indicate in 1.5SMC100CH?
The 'CH' suffix in 1.5SMC100CH denotes a bidirectional configuration - meaning the device clamps symmetrically for both positive and negative transients, with no anode/cathode polarity. This is confirmed in the datasheet's "Devices for Bipolar Applications" section and distinguishes it from unidirectional 'H' variants like 1.5SMC100H.
Is 1.5SMC100CH AEC-Q101 qualified?
Yes, 1.5SMC100CH is explicitly AEC-Q101 qualified as stated in the FEATURES section of the datasheet. This qualification covers stress tests including temperature cycling, high-temperature operating life, and mechanical shock - validating its suitability for automotive under-hood and chassis applications.
What is the maximum clamping voltage of 1.5SMC100CH at its rated peak current?
The maximum clamping voltage (VC) of 1.5SMC100CH is 144 V at 10.9 A peak impulse current (IPPM), measured using the standard 10/1000 µs waveform per Fig.5 in the datasheet. This value defines the upper voltage limit imposed on protected circuits during surge events.
Can 1.5SMC100CH be used in place of unidirectional 1.5SMC100H?
No - 1.5SMC100CH is bidirectional and lacks polarity marking, while 1.5SMC100H is unidirectional with a cathode band. Substituting them requires circuit review: bidirectional use allows placement without orientation checks, but unidirectional designs rely on correct polarity for forward conduction during certain transients.
What is the working stand-off voltage (VWM) for 1.5SMC100CH?
The working stand-off voltage (VWM) for 1.5SMC100CH is 81.0 V, as specified in the Electrical Specifications table. This is the maximum DC or continuous peak voltage the device can block without exceeding 1 µA leakage current - critical for selecting appropriate overvoltage margin relative to system rail voltage.
1.5SMC100CH 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):
- 81V
- Voltage - Breakdown (Min):
- 90V
- Voltage - Clamping (Max) @ Ipp:
- 144V
- Current - Peak Pulse (10/1000µs):
- 10.9A
- 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)
1.5SMC100CH FAQ
1.How can I place an order for 1.5SMC100CH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC100CH 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 1.5SMC100CH reliable?
The price and inventory of 1.5SMC100CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC100CH is usually 5 days.
3.What payment methods are accepted for 1.5SMC100CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC100CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC100CH?
1.5SMC100CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC100CH 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 1.5SMC100CH?
For technical support, including 1.5SMC100CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC100CH requirements.
6.How does Aetrix verify that 1.5SMC100CH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC100CH 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 1.5SMC100CH meets industry standards.
7.What is the process for return or replacement of 1.5SMC100CH?
All 1.5SMC100CH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC100CH, 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 1.5SMC100CH part is unused and in its original packaging.
Return procedure for 1.5SMC100CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC100CH Tags
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