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Taiwan Semiconductor Corporation 1.5SMC8.2CH
- Part No.:
- 1.5SMC8.2CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2CH.pdf
- Description:
- 1500W, 8.2V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:5,290
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Product details
Overview
1.5SMC8.2CH from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 1500W peak pulse power, 8.2V nominal breakdown voltage (7.38–9.02V), and 12.5V maximum clamping voltage at 200A peak impulse current. It protects automotive and industrial interfaces against ESD, load dump, and lightning-induced transients.
For engineers reviewing the 1.5SMC8.2CH datasheet, 1.5SMC8.2CH pinout, 1.5SMC8.2CH application, or 1.5SMC8.2CH equivalent, this device offers AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, sub-1ps response time, and <1µA leakage above 10V - critical for robust front-end protection in CAN, LIN, and sensor signal lines.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with clamping action triggered when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR and low leakage across temperature, while the DO-214AB package provides low thermal resistance (RθJC = 15°C/W) for reliable power dissipation during repetitive surges.
The device meets stringent automotive immunity standards including ISO 7637-2 Pulse 1 (inductive load disconnect), Pulse 2a (battery line spike), Pulse 2b (alternator load dump simulation), and Pulse 3a/3b (capacitive coupling transients). Its 0.065%/°C VBR temperature coefficient ensures predictable clamping behavior from –55°C to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPK) | 1500 W - sustains 10/1000 µs surge without failure, enabling protection of 12V/24V automotive power rails |
| Breakdown Voltage (VBR) | 7.38–9.02 V @ 10 mA - defines precise voltage threshold where clamping initiates, ensuring early suppression before downstream IC damage |
| Clamping Voltage (VC) | 12.5 V @ 200 A - limits transient voltage seen by protected circuit, staying well below typical 16V absolute max ratings of microcontrollers and transceivers |
| Working Stand-off Voltage (VWM) | 6.63 V - maximum continuous reverse voltage before leakage exceeds 1 µA, allowing safe operation on 5V–6V logic or sensor supply lines |
| Leakage Current (IR) | <1 µA @ 6.63 V - negligible standby power loss and no signal distortion in high-impedance analog or communication paths |
| Response Time | <1.0 ps - reacts faster than most semiconductor switching events, preventing voltage overshoot before protection engages |
| Junction Temperature Range | –55°C to +150°C - supports under-hood and industrial control environments without derating |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, bidirectional configuration with cathode band omitted (symmetrical terminals).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (reversible) | Bidirectional surge path | Either terminal serves as anode or cathode depending on transient polarity; no polarity marking required |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| ISO 7637-2 compliance | Passes Pulse 1 (–150V/50Ω), Pulse 2a (+100V/2Ω), Pulse 2b (+35V/50mΩ), Pulse 3a/3b (±200V) - full vehicle-level EMC immunity |
| Glass-passivated junction | Stable VBR tolerance and low IR drift over lifetime, eliminating parameter shift due to moisture or contamination |
| Moisture sensitivity level 1 | No floor life limitation or baking requirement before reflow - compatible with standard SMT assembly without special handling |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU - suitable for green manufacturing and export compliance |
Applications
| Automotive CAN Bus Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L lines in body control modules against battery transients and ESD during service. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point, shunting surge energy to ground before reaching CAN transceiver. Use Value: Maintains signal integrity by clamping to ≤12.5V while surviving repeated 1500W pulses - prevents transceiver latch-up or permanent damage. |
Use Scenario: Safeguarding 4–20mA current loop inputs in PLC analog input modules exposed to field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp across loop terminals, operating in parallel with precision shunt regulator. Use Value: Enables uninterrupted operation under ISO 7637-2 Pulse 2b (load dump) with <1µA leakage preserving loop accuracy. |
| Telecom Line Card Surge Protection | Consumer USB Port ESD Hardening |
Use Scenario: Front-end protection of Ethernet PHY or PoE-powered equipment connected to unshielded outdoor cabling. IC Role / Device Role / Timing Role: First-stage TVS on RJ45 interface, coordinated with GDT or polymer PTC for multi-level protection. Use Value: Sub-1ps response captures fast-rising lightning-induced surges before secondary protectors activate, reducing let-through energy. |
Use Scenario: ESD protection for USB 2.0 D+/D– lines in portable audio devices subjected to ±8kV contact discharge per IEC 61000-4-2. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed adjacent to USB connector, minimizing signal degradation. Use Value: Clamps ESD events to <13V while adding <0.5pF parasitic capacitance - preserves signal rise/fall times and eye diagram integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA (Bourns) | Same DO-214AA package; lower PPK = 600W; VBR = 8.89–9.82V; VC = 13.6V @ 44.1A | Lower surge rating suits consumer-grade 5V interfaces but insufficient for automotive load dump | Select when cost-sensitive designs require basic ESD/IEC 61000-4-2 protection without ISO 7637-2 compliance |
| 1.5KE8.2CA (ON Semiconductor) | Through-hole DO-15 package; PPK = 1500W; VBR = 7.79–8.61V; VC = 13.4V @ 112A | Not surface-mountable; higher thermal resistance limits repetitive surge capability | Choose only for legacy through-hole designs or prototyping where SMT assembly is unavailable |
Compared with SMBJ8.0CA and 1.5KE8.2CA, the 1.5SMC8.2CH delivers superior automotive-grade surge handling in a compact SMT footprint, with tighter VBR tolerance, lower clamping voltage, and verified ISO 7637-2 performance - making it the preferred choice for production automotive and industrial systems requiring AEC-Q101 validation.
Availability
1.5SMC8.2CH is available at Aetrix Electronics and suitable for automotive infotainment, industrial PLC I/O modules, telecom line cards, and consumer USB interface protection requiring stable component supply and long-term lifecycle support.
Supply support for 1.5SMC8.2CH 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 Taiwanese manufacturer specializing in discrete semiconductors, including TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q101 certification capabilities.
The 1.5SMC series was engineered specifically for high-reliability automotive and industrial transient suppression, emphasizing low clamping voltage, fast response, and robust packaging for harsh-environment deployment.
FAQ
What is the polarity configuration of the 1.5SMC8.2CH?
The 1.5SMC8.2CH is a bidirectional TVS diode with symmetrical terminals - neither anode nor cathode is designated, enabling use in AC-coupled or differential signal paths without orientation concerns. This differs from unidirectional variants like 1.5SMC8.2H, which require correct polarity placement relative to ground.
Does the 1.5SMC8.2CH meet AEC-Q101 requirements for automotive use?
Yes, the 1.5SMC8.2CH is explicitly AEC-Q101 qualified per the manufacturer's documentation, having passed stress tests including high-temperature reverse bias, temperature cycling, and ESD robustness - confirming suitability for under-hood and chassis-mounted automotive applications.
What is the maximum clamping voltage of the 1.5SMC8.2CH under surge conditions?
The 1.5SMC8.2CH has a maximum clamping voltage (VC) of 12.5 V at 200 A peak impulse current (10/1000 µs waveform), ensuring protected circuits remain within safe operating limits even during worst-case transients defined in ISO 7637-2.
Can the 1.5SMC8.2CH be used in place of unidirectional TVS diodes like 1.5SMC8.2H?
No - the 1.5SMC8.2CH is bidirectional and lacks polarity marking, whereas 1.5SMC8.2H is unidirectional with a cathode band. Substituting them requires verifying circuit topology: bidirectional use (e.g., differential buses) needs 1.5SMC8.2CH; single-ended grounded lines require 1.5SMC8.2H.
What is the working stand-off voltage (VWM) specification for the 1.5SMC8.2CH?
The 1.5SMC8.2CH has a working stand-off voltage (VWM) of 6.63 V, meaning it remains in high-impedance state with leakage <1 µA up to this DC or RMS voltage - ideal for protecting 5V logic rails or low-voltage sensor outputs without loading the circuit.
1.5SMC8.2CH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.63V
- Voltage - Breakdown (Min):
- 7.38V
- Voltage - Clamping (Max) @ Ipp:
- 12.5V
- Current - Peak Pulse (10/1000µs):
- 126A
- 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)
1.5SMC8.2CH FAQ
1.How can I place an order for 1.5SMC8.2CH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2CH 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 1.5SMC8.2CH reliable?
The price and inventory of 1.5SMC8.2CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC8.2CH is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2CH?
1.5SMC8.2CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2CH 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 1.5SMC8.2CH?
For technical support, including 1.5SMC8.2CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2CH requirements.
6.How does Aetrix verify that 1.5SMC8.2CH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2CH 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 1.5SMC8.2CH meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2CH?
All 1.5SMC8.2CH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2CH, 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 1.5SMC8.2CH part is unused and in its original packaging.
Return procedure for 1.5SMC8.2CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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