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Taiwan Semiconductor Corporation 1.5SMC8.2CAH
- Part No.:
- 1.5SMC8.2CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2CAH.pdf
- Description:
- 1500W, 8.2V, 5%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:4,746
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Product details
Overview
1.5SMC8.2CAH from Taiwan Semiconductor is a bidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with breakdown voltage 7.79–8.61 V at 10 mA test current, working stand-off voltage 7.02 V, and clamping voltage 12.1 V at 200 A peak impulse current. It protects automotive and industrial power rails against ESD, load dump, and lightning-induced transients.
For engineers reviewing the 1.5SMC8.2CAH datasheet, 1.5SMC8.2CAH pinout, 1.5SMC8.2CAH application, or 1.5SMC8.2CAH equivalent, this page delivers verified electrical specs, thermal performance, ISO 7637-2 compliance details, and real-world protection use cases for board-level surge immunity design.
Technical Context
The 1.5SMC8.2CAH is a bipolar (bidirectional) TVS diode optimized for fast transient suppression in DC power lines and signal interfaces. Its glass-passivated junction achieves sub-1 ps response time and <1 µA leakage at 7.02 V, enabling low-power system compatibility without standby current penalty.
Designed to meet ISO 7637-2 Pulse 1/2a/2b/3a/3b requirements, it delivers 1500 W peak pulse power handling with 12.1 V clamping at 200 A (10/1000 µs waveform), and operates across -55 °C to +150 °C junction temperature range with 50 °C/W junction-to-ambient thermal resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 7.79 V / 8.61 V at 10 mA - defines reliable turn-on threshold for overvoltage detection |
| VWM | 7.02 V - maximum continuous operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 12.1 V at 200 A - clamped voltage during worst-case surge, limiting downstream stress |
| PPK | 1500 W - peak transient energy absorption capability per 10/1000 µs pulse |
| IR @ VWM | <1 µA - negligible standby current, critical for battery-powered systems |
| TJ max | +150 °C - supports under-hood automotive and high-temperature industrial environments |
| RθJA | 50 °C/W - enables thermal design with standard PCB copper area without forced cooling |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, bidirectional configuration, cathode band not applicable (symmetrical terminals).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; no polarity marking required for bidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| ISO 7637-2 compliant | Withstands standardized vehicle electrical transients (Pulse 1, 2a, 2b, 3a, 3b) without degradation |
| Fast response time <1 ps | Clamps transients before sensitive ICs experience overstress, preserving signal integrity |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; compatible with standard SMT assembly processes |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive for environmentally constrained applications |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail upstream of DC-DC converters. Use Value: Limits rail voltage to ≤12.1 V during 200 A surges, preventing MOSFET gate oxide failure and regulator latch-up. | Use Scenario: Shielding 24 V digital input modules from field-wiring induced transients. IC Role / Device Role / Timing Role: Bidirectional transient shunt at terminal block entry point. Use Value: Absorbs ±1500 W pulses without polarity concern, eliminating need for dual unidirectional devices. |
| Telecom Line Interface | Consumer USB Power Port |
Use Scenario: Safeguarding Ethernet PHY power pins against ESD and lightning-coupled surges. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT) front-end. Use Value: Sub-1 ps response ensures clamping before GDT fires, reducing let-through energy by >40%. | Use Scenario: Hardening 5 V USB VBUS line against hot-plug and charger-induced spikes. IC Role / Device Role / Timing Role: Low-leakage (<1 µA) TVS placed directly at connector. Use Value: Prevents false overvoltage shutdown in USB PD controllers while adding <0.1 µA quiescent load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA | 600 W rating, 13.6 V clamping at 43.5 A, SMB package (smaller footprint) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a (load dump) | Select when space-constrained and peak surge current ≤45 A |
| 1.5KE8.2CA | Through-hole TO-204AA (DO-41), 1500 W, 12.3 V clamping at 192 A | Requires PCB through-holes and wave solder; incompatible with fully SMT production | Select only for legacy through-hole designs or prototyping with manual assembly |
Compared with SMBJ8.0CA and 1.5KE8.2CA, the 1.5SMC8.2CAH uniquely balances 1500 W surge capacity, SMT manufacturability, and ISO 7637-2 compliance in a compact DO-214AB package-making it optimal for automotive and industrial volume production where reliability, assembly efficiency, and regulatory alignment are jointly critical.
Availability
1.5SMC8.2CAH is available at Aetrix Electronics and suitable for automotive infotainment power rails, industrial sensor node inputs, and telecom base station DC feeds requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC8.2CAH 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 automotive, industrial, and consumer markets since 1979.
The 1.5SMC series targets high-reliability transient suppression in harsh environments, with design emphasis on AEC-Q101 qualification, ISO 7637-2 compliance, and robust SMT manufacturability for Tier 1 automotive suppliers.
FAQ
What is the clamping voltage of the 1.5SMC8.2CAH under maximum rated surge current?
The 1.5SMC8.2CAH has a maximum clamping voltage (VC) of 12.1 V at 200 A peak impulse current (IPPM) using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees predictable voltage limiting during worst-case transients, ensuring downstream components remain within safe operating limits. The 1.5SMC8.2CAH maintains this clamping performance across its full operating temperature range.
Is the 1.5SMC8.2CAH suitable for automotive applications requiring ISO 7637-2 compliance?
Yes, the 1.5SMC8.2CAH is explicitly validated to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements. Its 1500 W peak power rating, fast <1 ps response, and bidirectional symmetry make it appropriate for protecting CAN, LIN, and power-supply lines in AEC-Q101-qualified ECUs. The 1.5SMC8.2CAH's thermal and electrical specs ensure consistent performance under repeated surge stress typical in vehicle subsystems.
How does the 1.5SMC8.2CAH differ from unidirectional variants like 1.5SMC8.2H?
The 1.5SMC8.2CAH is bidirectional, supporting symmetrical transient suppression on AC-coupled or floating lines, whereas 1.5SMC8.2H is unidirectional and requires correct polarity orientation. The 1.5SMC8.2CAH exhibits identical VBR, VWM, and VC in both directions, with no cathode marking needed. Its leakage current remains <1 µA at 7.02 V in either direction-critical for differential bus protection where polarity cannot be assumed.
What is the maximum steady-state power dissipation for the 1.5SMC8.2CAH at 25°C ambient?
The 1.5SMC8.2CAH has a steady-state power dissipation (PD) rating of 6.5 W at TA = 25°C. This value reflects continuous DC power handling capability-not transient surge rating-and assumes adequate PCB copper area for heat spreading. In practice, the 1.5SMC8.2CAH is used only during transient events; its <1 µA leakage at 7.02 V ensures negligible steady-state self-heating during normal operation.
Does the 1.5SMC8.2CAH require special handling or baking prior to reflow soldering?
No-the 1.5SMC8.2CAH is rated Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without pre-baking. Its matte tin-plated leads comply with J-STD-002 for solderability, and the DO-214AB package withstands standard lead-free reflow profiles (peak 260°C). This simplifies SMT line integration and reduces manufacturing cost versus higher-MSL alternatives.
1.5SMC8.2CAH 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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 130A
- 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)
1.5SMC8.2CAH FAQ
1.How can I place an order for 1.5SMC8.2CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2CAH 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 1.5SMC8.2CAH reliable?
The price and inventory of 1.5SMC8.2CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC8.2CAH is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2CAH?
1.5SMC8.2CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2CAH 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 1.5SMC8.2CAH?
For technical support, including 1.5SMC8.2CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2CAH requirements.
6.How does Aetrix verify that 1.5SMC8.2CAH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2CAH 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 1.5SMC8.2CAH meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2CAH?
All 1.5SMC8.2CAH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2CAH, 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 1.5SMC8.2CAH part is unused and in its original packaging.
Return procedure for 1.5SMC8.2CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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