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Taiwan Semiconductor Corporation 1.5SMC10A
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- Part No.:
- 1.5SMC10A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC10A.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
1.5SMC10A from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, designed for clamping ESD and surge transients in power and signal lines. It features 9.5–10.5 V breakdown voltage (VBR), 8.55 V working stand-off voltage (VWM), 14.5 V maximum clamping voltage (VC) at 10.8 A peak pulse current, and 1500 W peak pulse power rating - suitable for protecting USB ports, DC power inputs, and industrial I/O interfaces.
For engineers reviewing the 1.5SMC10A datasheet, 1.5SMC10A pinout, 1.5SMC10A application, or 1.5SMC10A equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, leakage current at operating voltage (<1 µA @ 8.55 V), thermal resistance (RθJA = 50 °C/W), and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump immunity.
Technical Context
The 1.5SMC10A operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its specified VBR range (9.5–10.5 V @ 1.0 mA). Its glass-passivated junction ensures stable breakdown and low leakage (<1 µA @ VWM), while fast response time (<1.0 ps) enables effective suppression of ESD events per IEC 61000-4-2.
Thermally, it supports operation from −55 °C to +150 °C junction temperature, with RθJC = 15 °C/W enabling efficient heat transfer to PCB copper. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements, confirming suitability for high-reliability surface-mount assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 9.5 V / 10.5 V @ 1.0 mA - defines minimum overvoltage threshold before clamping activation |
| VWM | 8.55 V - maximum continuous reverse voltage without significant leakage; sets safe operating margin below VBR |
| VC @ IPPM | 14.5 V @ 10.8 A - clamped voltage during 10/1000 µs surge; must stay below protected IC's absolute max rating |
| PPK | 1500 W - peak pulse power handling per 1 ms waveform; determines survivability under ISO 7637-2 Pulse 3b |
| IR @ VWM | <1 µA - ultra-low leakage preserves battery life and avoids false triggering in low-power circuits |
| TJ max | +150 °C - enables use in under-hood automotive or enclosed industrial enclosures without derating |
| RθJA | 50 °C/W - requires ≥1 cm² 2-oz copper pad for full 1500 W rating at TA = 25 °C |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, single-die unidirectional configuration. Cathode indicated by molded band on case end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (non-banded end) | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); conducts during forward surge (IFSM = 200 A) |
| Cathode (banded end) | Reverse breakdown terminal | Connected to protected line (e.g., VBUS or signal); avalanches when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance (±5%) and long-term reliability under thermal cycling |
| Clamping voltage ≤14.5 V @ 10.8 A | Provides ≥1.5 V margin below typical 16 V absolute max rating of 12 V logic ICs |
| Response time <1.0 ps | Suppresses sub-nanosecond ESD events (IEC 61000-4-2 Contact ±8 kV) before IC damage occurs |
| ISO 7637-2 compliant | Validated for automotive load-dump (Pulse 2b) and coupled transient (Pulse 3a/3b) immunity testing |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking; reduces manufacturing overhead |
Applications
| USB 2.0 Data Line Protection | 12 V DC Power Input Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of embedded USB peripherals against ESD and hot-plug transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between each data line and ground, with cathode tied to signal line. Use Value: Clamps ESD pulses to ≤14.5 V within <1 ps, preventing latch-up or gate oxide damage in USB transceivers rated for 3.6 V max. |
Use Scenario: Safeguarding 12 V input rails of industrial PLC modules against load dump and inductive switching surges. IC Role / Device Role / Timing Role: Mounted across input terminals (cathode to VIN, anode to GND) to shunt transients exceeding 8.55 V. Use Value: Absorbs 1500 W peak energy per ISO 7637-2 Pulse 2b, limiting rail voltage to 14.5 V and avoiding brownout or regulator shutdown. |
| Automotive Sensor Interface | RS-485 Transceiver Port |
Use Scenario: Shielding analog sensor outputs (e.g., pressure or temperature sensors) in vehicle body control modules. IC Role / Device Role / Timing Role: Placed between sensor output and microcontroller ADC input, cathode to signal line. Use Value: Limits induced transients from nearby solenoid switching to <14.5 V, preserving 12-bit ADC accuracy and preventing input-stage saturation. |
Use Scenario: Protecting differential RS-485 bus lines (A/B) in factory automation gateways exposed to motor drive noise. IC Role / Device Role / Timing Role: One 1.5SMC10A per line (cathode to A or B, anode to GND) in unidirectional configuration. Use Value: Clamps common-mode surges up to 10.8 A without degrading signal integrity; maintains >200 Mbps data rate due to low capacitance (<100 pF). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A (Bourns) | Same DO-214AA (SMB) package; 1000 W PPK, VC = 17.0 V @ 8.3 A | Lower power rating and higher clamping voltage reduce margin for 12 V systems | Select when board space constraints favor SMB footprint and surge energy is limited to ≤1000 W |
| 1.5KE10A (ON Semiconductor) | Through-hole DO-15 package; 1500 W PPK, VC = 17.0 V @ 88 A | Requires PCB through-holes; higher VC risks violating IC voltage limits in compact designs | Choose for legacy through-hole production or where manual repair accessibility is prioritized over SMT density |
Compared with SMBJ10A and 1.5KE10A, the 1.5SMC10A delivers superior clamping performance (14.5 V vs. ≥17.0 V) in a surface-mount package optimized for automated placement - critical for high-volume USB and automotive electronics where layout density and ESD margin are tightly coupled.
Availability
1.5SMC10A is available at Aetrix Electronics and suitable for USB interface protection, 12 V DC power input hardening, and RS-485 transceiver port safeguarding requiring stable component supply and full traceability.
Supply support for 1.5SMC10A 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, and rectifiers with global AEC-Q200 qualified production lines.
The 1.5SMC series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure - engineered for robustness under ISO 7637-2 and IEC 61000-4-5 stress conditions with minimal footprint.
FAQ
What is the polarity configuration of the 1.5SMC10A?
The 1.5SMC10A is a unidirectional TVS diode, with cathode identified by a molded band on the DO-214AB (SMC) package. It conducts in reverse bias above VBR and blocks up to 8.55 V in forward direction - making it suitable for DC rail protection where polarity is fixed. Unlike bidirectional variants (e.g., 1.5SMC10CA), the 1.5SMC10A does not suppress positive transients on grounded lines.
Does the 1.5SMC10A meet automotive transient immunity standards?
Yes, the 1.5SMC10A is explicitly validated to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test profiles. Its 1500 W peak pulse rating and 14.5 V clamping voltage enable reliable suppression of load-dump (Pulse 2b) and capacitive-coupled (Pulse 3b) transients in 12 V vehicle networks - confirmed in Taiwan Semiconductor's S2207 datasheet revision.
What is the maximum steady-state power dissipation for the 1.5SMC10A?
The 1.5SMC10A has a steady-state power dissipation (PD) of 6.5 W at TA = 25 °C. This value applies only to continuous DC or low-frequency AC stress - not surge events. For sustained operation, thermal design must ensure junction temperature remains ≤150 °C using PCB copper area and airflow, per the RθJA = 50 °C/W specification.
How does the 1.5SMC10A compare to the 1.5SMC10 in terms of breakdown voltage tolerance?
The 1.5SMC10A has a tighter VBR tolerance: 9.5–10.5 V (±5%) versus 1.5SMC10's 9.0–11.0 V (±10%). This narrower spread improves predictability in clamping behavior across production lots and simplifies margin analysis for safety-critical 12 V systems where overvoltage headroom is constrained.
Is the 1.5SMC10A RoHS and halogen-free compliant?
Yes, the 1.5SMC10A is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and matte tin-plated leads comply with J-STD-002 solderability standards - ensuring compatibility with lead-free reflow processes and environmental compliance for global electronics markets.
1.5SMC10A 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):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 108A
- 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)
1.5SMC10A FAQ
1.How can I place an order for 1.5SMC10A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC10A 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 1.5SMC10A reliable?
The price and inventory of 1.5SMC10A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC10A is usually 5 days.
3.What payment methods are accepted for 1.5SMC10A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC10A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC10A?
1.5SMC10A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC10A 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 1.5SMC10A?
For technical support, including 1.5SMC10A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC10A requirements.
6.How does Aetrix verify that 1.5SMC10A is sourced from the original manufacturer or authorized distributors?
All 1.5SMC10A 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 1.5SMC10A meets industry standards.
7.What is the process for return or replacement of 1.5SMC10A?
All 1.5SMC10A units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC10A, 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 1.5SMC10A part is unused and in its original packaging.
Return procedure for 1.5SMC10A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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