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Taiwan Semiconductor Corporation 1.5SMC8.2H
- Part No.:
- 1.5SMC8.2H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2H.pdf
- Description:
- 1500W, 8.2V, 10%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:7,474
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Product details
Overview
1.5SMC8.2H from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 7.38–9.02 V breakdown voltage (VBR), 6.63 V working stand-off voltage (VWM), 12.5 V maximum clamping voltage (VC) at 200 A peak pulse current, and 1500 W peak pulse power rating - enabling robust ESD and lightning surge immunity in automotive and industrial interfaces.
For engineers reviewing the 1.5SMC8.2H datasheet, 1.5SMC8.2H pinout, 1.5SMC8.2H application, or 1.5SMC8.2H equivalent, key selection criteria include clamping performance under 10/1000 µs surge, unidirectional polarity marking, DO-214AB package thermal resistance (RθJC = 15 °C/W), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The 1.5SMC8.2H operates as a unidirectional avalanche diode with glass-passivated junction, delivering sub-1 ps response to transients. Its clamping behavior is defined by a 10/1000 µs double-exponential waveform per IEC 61000-4-5 and ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance.
Thermally, it supports continuous operation up to TJ = 150 °C with RθJA = 50 °C/W and RθJC = 15 °C/W, and exhibits <1 µA blocking leakage above 10 V - critical for low-power sensor and CAN bus line protection where standby current must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 7.38 V / 9.02 V - defines guaranteed avalanche conduction onset across production lot; ensures consistent triggering above 6.63 V system rail. |
| VWM | 6.63 V - maximum continuous reverse voltage before significant leakage; matches 5 V or 6 V logic/system rails with margin. |
| VC @ IPPM | 12.5 V @ 200 A - peak clamped voltage during 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPK | 1500 W - peak pulse power handling per single transient; supports automotive load-dump and ISO 7637-2 Pulse 5a. |
| IR @ VWM | <1 µA - ultra-low leakage at rated stand-off; preserves battery life in always-on automotive modules. |
| TJ max | 150 °C - maximum junction temperature; enables placement near heat sources in engine control units. |
| Package | DO-214AB (SMC) - industry-standard SMT outline with 0.210 g mass; compatible with automated pick-and-place and reflow profiles. |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with matte tin-plated leads, cathode band marking for unidirectional polarity, UL 94V-0 flammability rating, and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); conducts during forward surge (IFSM = 200 A). |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., 5 V rail); initiates breakdown when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors per stress test requirements. |
| Glass passivated junction | Enhances long-term reliability and moisture resistance vs. epoxy-passivated alternatives; meets J-STD-020 Level 1 MSL. |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (line impedance transients) without degradation. |
| Fast response time | <1.0 ps - enables clamping before sensitive CMOS inputs reach destructive voltage thresholds. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive; suitable for green manufacturing and export-controlled programs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 5 V supply lines in engine control units (ECUs) against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC and GND to clamp surges before they reach microcontroller LDOs and CAN transceivers. Use Value: Limits clamped voltage to 12.5 V during 200 A surge, preventing latch-up or gate oxide damage in downstream 5 V logic. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: TVS on 0–10 V or 4–20 mA signal lines to absorb ESD events and switching noise from nearby solenoids or relays. Use Value: Sub-1 ps response ensures clamping occurs before sensor amplifier input stages exceed absolute maximum ratings. |
| Telecom Line Surge Suppression | Consumer USB Port ESD Protection |
Use Scenario: Safeguarding Ethernet PHY power pins and bias rails in PoE-powered switches and routers. IC Role / Device Role / Timing Role: Primary TVS on +3.3 V or +5 V auxiliary rails feeding magnetics and PHY ICs. Use Value: 1500 W peak power rating handles multiple 10/1000 µs surges per IEC 61000-4-5 Level 4 without parametric shift. | Use Scenario: Front-end protection for USB 2.0 data lines and VBUS in portable media players and docking stations. IC Role / Device Role / Timing Role: Unidirectional clamping device on VBUS (5 V) rail to absorb contact ESD per IEC 61000-4-2 ±15 kV air discharge. Use Value: 6.63 V VWM allows full 5 V operation while 12.5 V VC prevents USB transceiver damage during ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | 600 W rating, 8.0 V nominal VBR, DO-214AA package (smaller footprint, higher RθJA = 65 °C/W) | Limited to lower-energy transients; not rated for ISO 7637-2 Pulse 5a or automotive load dump. | Select when board space is constrained and surge energy remains below 600 W. |
| 1.5KE8.2C | Through-hole TO-204AA (DO-41), 1500 W, bidirectional, slower thermal response due to leadframe construction | Requires PCB mounting change; lacks AEC-Q101 qualification and SMT process compatibility. | Choose only for legacy through-hole designs where rework to SMT is impractical. |
Compared with SMBJ8.0A and 1.5KE8.2C, the 1.5SMC8.2H uniquely combines AEC-Q101 qualification, DO-214AB SMT compatibility, 1500 W capability, and ISO 7637-2 compliance - making it the preferred choice for new automotive and industrial designs requiring high-reliability surface-mount surge suppression.
Availability
1.5SMC8.2H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom line surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for 1.5SMC8.2H 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 validation capabilities.
The 1.5SMC series is engineered for high-energy transient suppression in automotive and industrial environments, emphasizing rugged packaging, fast clamping, and standardized SMT integration for ECU, body control, and factory automation systems.
FAQ
What is the polarity configuration of the 1.5SMC8.2H?
The 1.5SMC8.2H is a unidirectional TVS diode, with cathode marked by a band on the DO-214AB package. It conducts in forward direction (anode-to-cathode) during positive surges and avalanches in reverse to clamp overvoltages on protected lines - unlike bidirectional variants such as 1.5SMC8.2AH which suppress surges in both directions.
Does the 1.5SMC8.2H meet automotive qualification standards?
Yes, the 1.5SMC8.2H is AEC-Q101 qualified and compliant with ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test waveforms - confirming its suitability for use in automotive electronic control units, infotainment systems, and ADAS modules where transient immunity is mission-critical.
What is the maximum clamping voltage of the 1.5SMC8.2H under surge conditions?
The 1.5SMC8.2H has a maximum clamping voltage (VC) of 12.5 V at 200 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is guaranteed across temperature and production lot, ensuring predictable overvoltage limiting for downstream 5 V or 6 V ICs.
How does the 1.5SMC8.2H compare to the 1.5SMC8.2AH variant?
The 1.5SMC8.2AH is the bidirectional version with symmetric breakdown (7.79–8.61 V), while the 1.5SMC8.2H is unidirectional (7.38–9.02 V). The 1.5SMC8.2H offers tighter VBR tolerance and lower VC (12.5 V vs. 12.1 V), but only protects against reverse-polarity transients - making it ideal for DC power rail applications where polarity is fixed.
What thermal performance metrics apply to the 1.5SMC8.2H in PCB layout?
The 1.5SMC8.2H has a junction-to-case thermal resistance (RθJC) of 15 °C/W and junction-to-ambient (RθJA) of 50 °C/W. For reliable operation at full 1500 W pulse rating, ensure adequate copper pour under the cathode/anode pads and avoid thermal isolation - especially in enclosed automotive enclosures exceeding 85 °C ambient.
1.5SMC8.2H 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:
- 1
- Bidirectional Channels:
- -
- 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)
1.5SMC8.2H FAQ
1.How can I place an order for 1.5SMC8.2H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2H 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 1.5SMC8.2H reliable?
The price and inventory of 1.5SMC8.2H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC8.2H is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2H?
1.5SMC8.2H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2H 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 1.5SMC8.2H?
For technical support, including 1.5SMC8.2H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2H requirements.
6.How does Aetrix verify that 1.5SMC8.2H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2H 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 1.5SMC8.2H meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2H?
All 1.5SMC8.2H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2H, 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 1.5SMC8.2H part is unused and in its original packaging.
Return procedure for 1.5SMC8.2H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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