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Taiwan Semiconductor Corporation 1.5SMC100CA
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- Part No.:
- 1.5SMC100CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC100CA.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
1.5SMC100CA from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 100 V working stand-off voltage (VWM), 105 V minimum breakdown voltage (VBR), 137 V maximum clamping voltage (VC) at 11.4 A peak pulse current, and 1500 W peak pulse power rating per 10/1000 µs waveform. It is used to protect Ethernet PHY interfaces, industrial I/O ports, and automotive body control modules against ESD and lightning-induced transients.
For engineers reviewing the 1.5SMC100CA datasheet, 1.5SMC100CA pinout, 1.5SMC100CA application, or 1.5SMC100CA equivalent, key selection criteria include bidirectional clamping capability, DO-214AB (SMC) package compatibility, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and leakage current ≤1 µA at 85.5 V - critical for low-power sensor nodes and always-on automotive circuits.
Technical Context
The 1.5SMC100CA employs a glass-passivated silicon junction optimized for fast transient response (<1.0 ps) and stable clamping under repetitive surge stress. Its bidirectional configuration enables symmetrical protection without polarity sensitivity, eliminating need for orientation-aware layout in differential or AC-coupled paths.
Thermal design is supported by a junction-to-case thermal resistance of 15 °C/W and junction-to-ambient of 50 °C/W, enabling reliable operation up to +150 °C ambient when mounted on ≥1 cm² copper pour. It meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85.5 V - maximum continuous DC or RMS voltage the device blocks without conduction; defines safe operating margin below clamping threshold |
| VBR (min/max) | 95 V / 105 V at 1 mA test current - verified breakdown range ensures predictable turn-on during transients |
| VC @ IPPM | 137 V at 11.4 A - clamping voltage limits downstream IC stress during 10/1000 µs surge; critical for 100 V rail protection |
| PPK | 1500 W - peak pulse power handling per standard 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 immunity |
| IR @ VWM | ≤1 µA - ultra-low leakage preserves battery life in always-on systems and avoids false triggering in high-impedance sensing circuits |
| Package | DO-214AB (SMC) - industry-standard surface-mount outline with 7.11 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place |
| TJ max | +150 °C - enables deployment in under-hood automotive environments and enclosed industrial enclosures without derating |
Pinout & Package
Package: DO-214AB (SMC), bidirectional configuration - no anode/cathode designation; terminals are symmetrical and interchangeable. Cathode band marking is omitted per bidirectional construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Bidirectional surge port | Connects to protected line (e.g., CAN_H or RS-485 A); conducts equally in both directions during overvoltage events |
| Terminal 2 | Bidirectional surge port | Connects to reference plane (e.g., ground or complementary line); completes low-impedance shunt path for transient energy |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure per J-STD-020 MSL-1 |
| ISO 7637-2 compliance | Validated for automotive load-dump and switching transient immunity (Pulse 1, 2a, 2b, 3a, 3b) without external filtering |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU - suitable for green manufacturing and export compliance |
| Matte tin-plated leads | Solderable per J-STD-002; eliminates lead-free solder wetting issues and supports reflow profiles up to 260 °C peak |
| Fast response time | <1.0 ps junction response enables clamping before sensitive ICs experience voltage overshoot beyond absolute maximum ratings |
Applications
| Automotive Body Control Module (BCM) | Industrial RS-485 Data Line |
|---|---|
Use Scenario: Protecting microcontroller I/O pins and LIN bus transceivers from load dump and alternator ripple in 12 V vehicle electrical systems. IC Role / Device Role: Bidirectional shunt clamp placed between LIN signal line and chassis ground. Use Value: Limits transient voltage to ≤137 V during ISO 7637-2 Pulse 2b (inductive switch-off), preventing latch-up or gate oxide damage in connected transceivers. |
Use Scenario: Safeguarding half-duplex RS-485 transceivers in factory automation PLCs exposed to motor drive noise and ground potential differences. IC Role / Device Role: Differential-line TVS across A–B bus pair, referenced to local signal ground. Use Value: Clamps common-mode surges up to 1500 W without degrading signal integrity - maintains >12 kV ESD immunity per IEC 61000-4-2 while preserving DC common-mode range. |
| Telecom Power Input Stage | Smart Meter AC/DC Auxiliary Supply |
Use Scenario: Secondary-side DC input protection for PoE-powered network switches subjected to lightning-induced surges on 48 V distribution lines. IC Role / Device Role: Standoff-rated TVS placed after DC-DC converter output, before load switch. Use Value: Blocks 85.5 V continuous voltage while clamping 10/1000 µs transients to 137 V - protects 100 V-rated MOSFETs and controllers without crowbar action. |
Use Scenario: Surge suppression on the 5 V auxiliary rail derived from mains-connected SMPS in utility smart meters. IC Role / Device Role: Bidirectional clamp between 5 V rail and system ground, adjacent to real-time clock and metrology ICs. Use Value: Delivers <1 µA leakage at 85.5 V, avoiding battery drain in backup-supplied RTC circuits while surviving 10 kV contact ESD per IEC 61000-4-2. |
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 (Bourns) | Same DO-214AA (SMB) package; lower PPK = 600 W; VC = 165 V @ 5.2 A | Limited to lower-energy transients (IEC 61000-4-5 Level 2); unsuitable for ISO 7637-2 Pulse 1 | Select only if board space constraints require SMB footprint and surge threat level is ≤600 W |
| SMCJ100CA (Littelfuse) | Identical DO-214AB (SMC) package; PPK = 1500 W; VC = 137 V @ 11.4 A - matches 1.5SMC100CA within ±0.5 V | Functionally interchangeable; validated for same ISO 7637-2 pulses and JEDEC moisture specs | Drop-in alternative with identical thermal and electrical performance; preferred for dual-sourcing |
Compared with SMBJ100CA, the 1.5SMC100CA delivers 2.5× higher surge power handling and tighter clamping; versus SMCJ100CA, it offers identical protection performance but with Taiwan Semiconductor's extended qualification for automotive temperature cycling and halogen-free compliance.
Availability
1.5SMC100CA is available at Aetrix Electronics and suitable for automotive electronics, industrial communications, and smart metering applications requiring stable component supply and full ISO 7637-2 compliance.
Supply support for 1.5SMC100CA 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 since 1979.
The 1.5SMC series was developed to deliver high-reliability, AEC-Q200–capable transient protection for automotive and industrial applications where robustness, low leakage, and standardized SMC packaging are mandatory.
FAQ
What does the "CA" suffix indicate in 1.5SMC100CA?
The "CA" suffix in 1.5SMC100CA denotes a bidirectional configuration - meaning the device provides symmetrical clamping in both polarities without anode/cathode orientation requirements. This differs from "A"-suffixed unidirectional parts (e.g., 1.5SMC100A), which require correct polarity placement. The 1.5SMC100CA is functionally identical to 1.5SMC100C but with tighter VBR tolerance (±5% vs. ±10%), and is validated for use in AC-coupled or differential signal paths such as CAN or RS-485.
Does 1.5SMC100CA meet automotive qualification standards?
Yes, the 1.5SMC100CA is qualified per AEC-Q200 Rev D for stress testing including temperature cycling, humidity bias, and mechanical shock. It also meets ISO 7637-2 Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance stabilization network surges). Its DO-214AB package carries J-STD-020 MSL-1 rating, supporting lead-free reflow without popcorn cracking - essential for automotive PCB assembly.
What is the maximum clamping voltage of 1.5SMC100CA under standard test conditions?
The maximum clamping voltage (VC) of 1.5SMC100CA is 137 V, measured at 11.4 A peak pulse current (IPPM) using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range (−55 °C to +150 °C) and ensures downstream components rated for 150 V absolute maximum will remain within safe operating limits during surge events.
Can 1.5SMC100CA be used in place of a unidirectional 1.5SMC100A?
No - the 1.5SMC100CA is bidirectional and lacks polarity marking, while the 1.5SMC100A is unidirectional with a cathode band. Substituting them requires circuit-level validation: 1.5SMC100CA may be used in AC or differential applications (e.g., CAN bus), but cannot replace 1.5SMC100A in DC-biased single-ended rails without verifying that reverse conduction does not disrupt bias networks or cause unintended current paths. Layout changes and functional testing are mandatory.
What is the leakage current specification for 1.5SMC100CA at its working voltage?
The 1.5SMC100CA exhibits a maximum blocking leakage current (IR) of 1 µA when biased at its working stand-off voltage (VWM) of 85.5 V, tested at 25 °C. This ultra-low leakage is maintained across −40 °C to +85 °C ambient and supports energy-sensitive designs such as battery-backed real-time clocks, wireless sensor nodes, and always-on automotive modules where standby current must remain below 5 µA.
1.5SMC100CA 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):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 11.4A
- 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)
1.5SMC100CA FAQ
1.How can I place an order for 1.5SMC100CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC100CA 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 1.5SMC100CA reliable?
The price and inventory of 1.5SMC100CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC100CA is usually 5 days.
3.What payment methods are accepted for 1.5SMC100CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC100CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC100CA?
1.5SMC100CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC100CA 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 1.5SMC100CA?
For technical support, including 1.5SMC100CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC100CA requirements.
6.How does Aetrix verify that 1.5SMC100CA is sourced from the original manufacturer or authorized distributors?
All 1.5SMC100CA 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 1.5SMC100CA meets industry standards.
7.What is the process for return or replacement of 1.5SMC100CA?
All 1.5SMC100CA units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC100CA, 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 1.5SMC100CA part is unused and in its original packaging.
Return procedure for 1.5SMC100CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC100CA Tags
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