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Taiwan Semiconductor Corporation 1.5SMC8.2AH
- Part No.:
- 1.5SMC8.2AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2AH.pdf
- Description:
- 1500W, 8.2V, 5%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:3,546
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Product details
Overview
1.5SMC8.2AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 7.79–8.61 V breakdown voltage (VBR), 7.02 V working stand-off voltage (VWM), 130 A peak impulse current (IPPM), 12.1 V clamping voltage (VC @ IPPM), and 1500 W peak pulse power rating - deployed in automotive infotainment power inputs and industrial sensor interface protection.
For engineers reviewing the 1.5SMC8.2AH datasheet, 1.5SMC8.2AH pinout, 1.5SMC8.2AH application, or 1.5SMC8.2AH equivalent, key selection criteria include clamping performance at 130 A surge, unidirectional polarity marking, DO-214AB package 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 1.5SMC8.2AH operates as a unidirectional avalanche diode with glass-passivated junction, enabling sub-1 ps response to ESD and lightning-induced transients. Its single-die DO-214AB construction supports automated SMT placement and meets AEC-Q101 stress qualification for automotive under-hood use.
It delivers 12.1 V clamping at 130 A (10/1000 µs waveform), with <1 µA leakage above 7.02 V and a temperature coefficient of 0.065 %/°C - ensuring stable VBR across -55 °C to +150 °C junction operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 7.79 V / 8.61 V - defines minimum and maximum voltage at which avalanche conduction begins under 10 mA test current |
| VWM | 7.02 V - maximum continuous reverse operating voltage before significant leakage occurs |
| VC @ IPPM | 12.1 V - clamped voltage seen by protected circuit during 130 A transient, limiting downstream stress |
| IPPM | 130 A - peak surge current capability per 10/1000 µs waveform, defining robustness against ISO 7637-2 Pulse 5a |
| PPK | 1500 W - peak pulse power dissipation capacity, supporting high-energy transients without failure |
| TJ max | +150 °C - maximum junction temperature, enabling operation in under-hood automotive environments |
| RθJA | 50 °C/W - thermal resistance from junction to ambient, guiding PCB copper area requirements for thermal management |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Matte tin-plated leads, RoHS and halogen-free compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return in unidirectional TVS configuration |
| Cathode | Protected line connection | Connected to the line being protected (e.g., 12 V rail); marked by band on package body |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including temperature cycling, HTRB, and mechanical shock per JESD22 standards |
| Clamping voltage ≤12.1 V @ 130 A | Ensures downstream ICs rated for 13.2 V absolute maximum are not overstressed during load dump events |
| Leakage <1 µA @ 7.02 V | Minimizes standby power loss in battery-backed systems such as telematics modules |
| Response time <1.0 ps | Protects fast-edge digital interfaces (e.g., CAN FD, LIN) before transient energy couples into logic |
| ISO 7637-2 compliant | Meets Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (switching noise) requirements |
Applications
| Automotive Power Input Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery feed to infotainment head unit exposed to load dump pulses up to 35 V and 100 ms duration. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp surges before DC-DC converter input stage. Use Value: Limits voltage to ≤12.1 V during 130 A transients, preventing overvoltage damage to buck controller ICs and LDOs. |
Use Scenario: 4–20 mA current loop transmitter connected to PLC analog input subjected to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: TVS mounted across loop terminals to shunt transients before precision op-amp input stage. Use Value: Sub-1 ps response ensures clamping occurs before 10 ns edge rates propagate into signal conditioning circuitry. |
| Telecom DC Power Feeds | Consumer USB-C Port Protection |
Use Scenario: -48 V telecom power supply feeding remote radio units, subject to lightning-induced common-mode surges on pair lines. IC Role / Device Role / Timing Role: Paired unidirectional 1.5SMC8.2AH devices (anode-to-rail, cathode-to-ground) protect each conductor in split-rail architecture. Use Value: 1500 W peak power rating sustains multiple 10/1000 µs surges without degradation, meeting Telcordia GR-1089-CORE Level 3. |
Use Scenario: VBUS line in USB-C receptacle exposed to hot-plug contact bounce and ESD events during cable insertion. IC Role / Device Role / Timing Role: TVS placed between VBUS and GND to clamp ESD strikes (IEC 61000-4-2 ±15 kV air) before USB PD controller. Use Value: 7.02 V working voltage allows full 5 V operation while clamping ±15 kV ESD to <20 V peak, preserving USB enumeration integrity. |
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 | Lower PPK = 600 W; VC = 12.5 V @ 48.2 A; DO-214AA package (smaller footprint) | Insufficient for ISO 7637-2 Pulse 5a (load dump); suitable only for IEC 61000-4-5 Level 3 (4 kV) | Select when space-constrained and surge energy is limited to <600 W |
| 1.5KE8.2A | Through-hole TO-204AE (DO-41); same VBR/VC specs but RθJA = 60 °C/W; no AEC-Q101 qualification | Not suitable for automated SMT production or automotive under-hood thermal environments | Select only for legacy through-hole designs where reflow compatibility is not required |
Compared with SMBJ8.0A and 1.5KE8.2A, the 1.5SMC8.2AH uniquely combines 1500 W surge rating, AEC-Q101 qualification, and DO-214AB SMT compatibility - making it the only option for new automotive power rail designs requiring both high-energy immunity and production scalability.
Availability
1.5SMC8.2AH is available at Aetrix Electronics and suitable for automotive infotainment power inputs, industrial 4–20 mA transmitters, telecom -48 V feeds, and consumer USB-C VBUS protection requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC8.2AH 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 distribution and AEC-Q101-qualified product lines.
The 1.5SMC series was engineered specifically for high-reliability automotive and industrial transient suppression, emphasizing robust clamping, low leakage, and SMT manufacturability in harsh thermal environments.
FAQ
What is the polarity configuration of the 1.5SMC8.2AH?
The 1.5SMC8.2AH is a unidirectional TVS diode, with cathode marked by a band on the DO-214AB package body. It conducts only when cathode voltage exceeds anode voltage by ≥7.79 V, making it suitable for DC rail protection where reverse voltage is not expected.
Does the 1.5SMC8.2AH meet AEC-Q101 requirements for automotive use?
Yes, the 1.5SMC8.2AH is explicitly AEC-Q101 qualified per the manufacturer's datasheet (Version B2207). It has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and mechanical shock - confirming suitability for automotive power and signal line protection.
What is the maximum clamping voltage of the 1.5SMC8.2AH under surge conditions?
The 1.5SMC8.2AH clamps to a maximum of 12.1 V when subjected to its rated 130 A peak impulse current (10/1000 µs waveform), as specified in the Electrical Specifications table. This value is guaranteed across the full operating temperature range.
Can the 1.5SMC8.2AH be used in bidirectional applications?
No - the 1.5SMC8.2AH is unidirectional only. For bidirectional protection, Taiwan Semiconductor specifies part numbers with "CH" or "CAH" suffixes (e.g., 1.5SMC8.2CH), which feature symmetrical breakdown in both directions and different VBR limits.
What is the thermal resistance of the 1.5SMC8.2AH, and how does it affect PCB layout?
The 1.5SMC8.2AH has a junction-to-ambient thermal resistance (RθJA) of 50 °C/W. To maintain TJ ≤150 °C under 1500 W peak pulses, PCB copper area must be sufficient to dissipate heat - typically requiring ≥100 mm² of 2 oz copper connected to both terminals via thermal vias.
1.5SMC8.2AH 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):
- 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)
1.5SMC8.2AH FAQ
1.How can I place an order for 1.5SMC8.2AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2AH 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 1.5SMC8.2AH reliable?
The price and inventory of 1.5SMC8.2AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC8.2AH is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2AH?
1.5SMC8.2AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2AH 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 1.5SMC8.2AH?
For technical support, including 1.5SMC8.2AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2AH requirements.
6.How does Aetrix verify that 1.5SMC8.2AH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2AH 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 1.5SMC8.2AH meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2AH?
All 1.5SMC8.2AH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2AH, 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 1.5SMC8.2AH part is unused and in its original packaging.
Return procedure for 1.5SMC8.2AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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