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Taiwan Semiconductor Corporation 1.5SMC82C
- Part No.:
- 1.5SMC82C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82C.pdf
- Description:
- 1500W, 82V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:4,970
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Product details
Overview
1.5SMC82C from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 1500W peak pulse power, 82V breakdown voltage (77.9–86.1V), and clamping voltage of 113V at 13.9A. It protects telecom and industrial interfaces against ESD, lightning surges, and load-switch transients.
For engineers reviewing the 1.5SMC82C datasheet, 1.5SMC82C pinout, 1.5SMC82C application, or 1.5SMC82C equivalent, key selection criteria include bidirectional clamping capability, 113V VC@IPPM, 1μA [email protected], ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and DO-214AB thermal performance (RθJA = 50°C/W).
Technical Context
The 1.5SMC82C employs a glass-passivated silicon junction optimized for fast transient response (<1.0 ps) and low leakage (<1 μA at 70.1 V). Its bidirectional configuration enables symmetrical clamping in AC-coupled or floating signal lines without polarity constraints.
Designed per ANSI/IEEE C62.35, it delivers 1500 W peak pulse power under 10/1000 μs waveform, with thermal derating above 25°C (RθJC = 15°C/W, RθJA = 50°C/W) and moisture sensitivity level 1 per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 77.9 V / 86.1 V - ensures reliable conduction onset across manufacturing tolerance and temperature |
| VWM | 70.1 V - maximum continuous reverse operating voltage before significant leakage |
| VC@IPPM | 113 V at 13.9 A - clamped voltage during worst-case 10/1000 μs surge, defining protected circuit stress |
| PPK | 1500 W - peak surge energy handling per single non-repetitive event |
| IR@VWM | <1 μA - minimal standby leakage, critical for low-power sensor or battery-backed circuits |
| TJ max | +150 °C - supports operation in high-ambient industrial environments |
| Package | DO-214AB (SMC) - surface-mount footprint compatible with automated assembly and 0.21 g mass |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with matte tin-plated leads, UL 94V-0 rating, polarity indicated by cathode band (bidirectional operation renders band non-functional but retained for marking consistency).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction terminals | No functional polarity; either terminal serves as input/output for transient suppression in AC or floating paths |
| Cathode band marking | Manufacturing orientation indicator | Retained for legacy compatibility but electrically irrelevant in 1.5SMC82C bidirectional configuration |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR over life and improved humidity resistance vs. epoxy-passivated alternatives |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated protection for automotive and industrial 12 V/24 V supply lines against real-world conducted transients |
| Fast response time <1.0 ps | Clamps ESD events before sensitive ICs experience overstress, meeting IEC 61000-4-2 Level 4 |
| Moisture sensitivity level 1 | Zero bake requirement before reflow, reducing manufacturing cost and process complexity |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU directives for environmentally constrained applications |
Applications
| Automotive Infotainment Interface | Industrial RS-485 Transceiver Protection |
|---|---|
Use Scenario: Protecting CAN-FD and LVDS video links in head units exposed to load dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pairs and power rails to clamp ±100 V surges without polarity biasing. Use Value: 113 V clamping ensures transceivers remain below absolute maximum ratings during ISO 7637-2 Pulse 5a (load dump), preventing latch-up or permanent damage. | Use Scenario: Safeguarding half-duplex RS-485 nodes in factory automation PLCs subjected to motor switching noise and ground bounce. IC Role / Device Role / Timing Role: Placed line-to-line and line-to-ground on A/B bus terminals to suppress common-mode and differential-mode surges up to 1 kV. Use Value: 1500 W peak power rating sustains multiple 10/1000 μs surges without degradation, extending field reliability beyond 10 years. |
| Telecom DSL Line Card | Smart Meter AC Power Input |
Use Scenario: Shielding ADSL/VDSL line drivers from lightning-induced surges entering via outdoor copper pairs. IC Role / Device Role / Timing Role: Bidirectional TVS connected between tip/ring and ground, operating in conjunction with gas discharge tubes for staged protection. Use Value: 70.1 V working voltage allows normal 48–56 V DC bias while clamping induced transients to 113 V, preserving xDSL signal integrity. | Use Scenario: Protecting metering SoCs and isolated power supplies from surges on 230 VAC mains inputs during grid switching events. IC Role / Device Role / Timing Role: Used in parallel with MOVs on L-N and L/N-GND paths to handle fast-rising transients that MOVs cannot suppress alone. Use Value: Sub-1 ps response captures high-frequency components missed by slower protectors, reducing failure rate in IEC 61000-4-5 Level 4 testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85CA (Bourns) | Same DO-214AA package, 85 V VBR (min 79.8 V), 1000 W PPK, higher RθJA (60°C/W) | Lower surge rating limits use in high-energy industrial environments | Select when board space is constrained to SMB footprint and 1000 W suffices |
| SMCJ85CA (Littelfuse) | DO-214AB package, identical 85 V VBR range, 1500 W PPK, but 1.5× higher IR (1.5 μA @ VWM) | Slightly higher leakage may affect ultra-low-power metering sleep modes | Prefer when sourcing flexibility is needed and leakage margin permits |
Compared with 1.5SMC82C, SMBJ85CA offers smaller footprint but reduced surge capacity, while SMCJ85CA matches power and package but trades off leakage performance-making 1.5SMC82C optimal for high-energy, low-leakage industrial designs.
Availability
1.5SMC82C is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial RS-485 networks, and telecom DSL line cards requiring stable component supply, long-term lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for 1.5SMC82C 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, serving global industrial, automotive, and consumer markets since 1979.
The 1.5SMC series targets high-reliability transient suppression in harsh environments, emphasizing ISO 7637-2 compliance, low leakage, and robust thermal performance for mission-critical interface protection.
FAQ
What does the 'C' suffix indicate in 1.5SMC82C?
The 'C' suffix in 1.5SMC82C denotes bidirectional configuration, meaning the device provides symmetrical clamping for both positive and negative transients without polarity dependence. This distinguishes it from unidirectional variants like 1.5SMC82A and enables use in AC-coupled or floating signal paths where voltage polarity reverses. The 1.5SMC82C maintains identical electrical specs-including 77.9–86.1 V VBR, 70.1 V VWM, and 113 V VC-as its unidirectional counterparts but operates equivalently in either direction.
Is 1.5SMC82C compliant with automotive transient standards?
Yes, 1.5SMC82C meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a (sudden load removal), Pulse 2b (supply interruption), Pulse 3a (capacitive coupled noise), and Pulse 3b (power line spikes), making it suitable for 12 V and 24 V automotive subsystems. Its 1500 W peak pulse power, 113 V clamping voltage, and fast <1.0 ps response ensure robust protection against real-world vehicle electrical disturbances. The 1.5SMC82C is not AEC-Q200 qualified, so system-level validation is required for safety-critical applications.
What is the maximum clamping voltage of 1.5SMC82C under surge conditions?
The maximum clamping voltage (VC) of 1.5SMC82C is 113 V at 13.9 A peak impulse current (IPPM), measured under the standard 10/1000 μs double-exponential surge waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The 1.5SMC82C achieves this clamping performance while maintaining low leakage (<1 μA at 70.1 V) and thermal stability up to +150 °C junction temperature.
Can 1.5SMC82C be used in place of 1.5SMC82A?
No-1.5SMC82C and 1.5SMC82A are functionally distinct: 1.5SMC82C is bidirectional, while 1.5SMC82A is unidirectional. Swapping them requires verifying circuit topology; using 1.5SMC82C in a unidirectional design introduces no harm but adds unnecessary symmetry, whereas substituting 1.5SMC82A for 1.5SMC82C in an AC or floating path risks incomplete protection. Both share identical DO-214AB packaging and key parameters (VBR, VC, PPK), but polarity awareness remains essential. Always confirm schematic intent before replacement.
What is the thermal resistance profile of 1.5SMC82C?
1.5SMC82C has a junction-to-case thermal resistance (RθJC) of 15°C/W and junction-to-ambient thermal resistance (RθJA) of 50°C/W under standard JEDEC test conditions. These values enable effective heat dissipation during repetitive surge events and support operation up to +150°C junction temperature. PCB layout significantly impacts actual RθJA-using minimum 100 mm² copper pour per pad reduces thermal impedance by ~20%. The 1.5SMC82C's RθJA is confirmed per JEDEC JESD51-2 and validated in Taiwan Semiconductor's S2207 datasheet revision.
1.5SMC82C 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):
- 66.4V
- Voltage - Breakdown (Min):
- 73.8V
- Voltage - Clamping (Max) @ Ipp:
- 118V
- Current - Peak Pulse (10/1000µs):
- 13A
- 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)
1.5SMC82C FAQ
1.How can I place an order for 1.5SMC82C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82C 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 1.5SMC82C reliable?
The price and inventory of 1.5SMC82C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC82C is usually 5 days.
3.What payment methods are accepted for 1.5SMC82C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82C?
1.5SMC82C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82C 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 1.5SMC82C?
For technical support, including 1.5SMC82C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82C requirements.
6.How does Aetrix verify that 1.5SMC82C is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82C 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 1.5SMC82C meets industry standards.
7.What is the process for return or replacement of 1.5SMC82C?
All 1.5SMC82C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82C, 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 1.5SMC82C part is unused and in its original packaging.
Return procedure for 1.5SMC82C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC82C Tags
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