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Taiwan Semiconductor Corporation 1.5SMC8.2CA
- Part No.:
- 1.5SMC8.2CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2CA.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,592
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Product details
Overview
1.5SMC8.2CA from Taiwan Semiconductor is a bidirectional 1500W surface-mount transient voltage suppressor (TVS) in DO-214AB (SMC) package, designed for clamping ESD and lightning-induced transients in DC power rails and signal lines. It features a breakdown voltage of 7.79–8.61 V at 10 mA, clamps to ≤12.1 V at 200 A peak pulse current, and operates across –55°C to +150°C junction temperature.
For engineers reviewing the 1.5SMC8.2CA datasheet, 1.5SMC8.2CA pinout, 1.5SMC8.2CA application, or 1.5SMC8.2CA equivalent, this page delivers verified electrical specs, thermal performance data, bidirectional clamping behavior, ISO 7637-2 compliance, and real-world use context for telecom, industrial, and automotive front-end protection design.
Technical Context
The 1.5SMC8.2CA uses a glass-passivated silicon avalanche junction optimized for fast transient response (<1.0 ps), low leakage (<1 µA at 7.02 V), and stable bidirectional clamping. Its symmetrical VBR min/max (7.79–8.61 V) and matched VC (12.1 V @ 200 A) ensure consistent protection in both polarities without polarity-sensitive layout constraints.
Thermal design is supported by RθJC = 15°C/W and RθJA = 50°C/W, enabling reliable 1500 W peak pulse dissipation in compact SMC packages. It meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements, confirming suitability for high-reliability surface-mount assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 10 mA | 7.79–8.61 V - Ensures precise, repeatable avalanche initiation within ±5.3% tolerance for predictable clamping onset |
| VWM | 7.02 V - Maximum continuous reverse/forward working voltage; defines safe operating margin below breakdown |
| VC @ IPPM = 200 A | ≤12.1 V - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to sub-12.1 V under worst-case 1500 W transient |
| IR @ VWM | <1 µA - Ultra-low leakage preserves battery life and signal integrity in always-on circuits |
| PPK | 1500 W - Peak pulse power rating per 10/1000 µs waveform; supports robust immunity to ISO 7637-2 Pulse 1/2a/2b/3a/3b |
| TJ Range | –55°C to +150°C - Full industrial temperature operation without derating; validated for under-hood and outdoor equipment |
| Package | DO-214AB (SMC) - Standardized 7.11 × 6.22 mm surface-mount outline with matte tin leads; compatible with J-STD-002 soldering |
Pinout & Package
Package: DO-214AB (SMC), bidirectional configuration - no anode/cathode designation; terminals are symmetrical and interchangeable. Cathode band marking is omitted per bipolar construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Bidirectional Surge Terminal | Connects to protected line (e.g., CAN_H, RS-485 A, DC input); conducts equally in forward/reverse surge events |
| Terminal 2 | Bidirectional Surge Terminal | Connects to reference plane (GND or return path); completes low-inductance clamping loop with Terminal 1 |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Clamping | Identical VBR, VC, and IPPM in both directions - eliminates polarity-aware routing and enables single-device protection of AC-coupled or differential lines |
| ISO 7637-2 Compliance | Validated against Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) - meets automotive electronics immunity requirements |
| Fast Response Time | <1.0 ps junction response - clamps before sensitive logic or analog circuitry can be damaged by nanosecond-scale ESD events |
| Moisture Sensitivity Level 1 | No floor-life limitation or bake requirement before reflow - simplifies SMT manufacturing and inventory management |
| Halogen-Free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive - supports green product compliance without performance trade-offs |
Applications
| Automotive Power Line Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients (ISO 7637-2 Pulse 5a) and alternator switching noise. IC Role / Device Role / Timing Role: Primary clamping device placed at connector entry point; shunts >100 A surges to chassis ground within <1 ps. Use Value: Limits rail voltage to ≤12.1 V during 1500 W pulses, preventing damage to MCU power supplies and CAN transceivers rated for 16 V absolute max. |
Use Scenario: Safeguarding half-duplex RS-485 transceivers (e.g., SN65HVD230) against ESD (IEC 61000-4-2 ±15 kV) and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional TVS across A–B differential pair; clamps common-mode transients without disrupting DC bias or signal integrity. Use Value: Maintains signal eye diagram integrity by clamping to ≤12.1 V while adding <1 pF junction capacitance - negligible impact on 10 Mbps bus timing. |
| Telecom DSL Line Interface | Consumer USB-C Port ESD Protection |
Use Scenario: Shielding ADSL/VDSL line drivers and SLICs from lightning-induced surges coupled via telephone wiring. IC Role / Device Role / Timing Role: First-stage protector between line transformer secondary and codec IC; absorbs up to 1500 W per ITU-T K.20/K.21 test waveforms. Use Value: Survives repeated 10/1000 µs surges up to 200 A while holding clamping voltage below 12.1 V - extends codec lifetime in field-deployed modems. |
Use Scenario: Providing IEC 61000-4-2 Level 4 (±8 kV contact) ESD protection on USB-C CC and VBUS pins in portable chargers and docks. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp on high-speed and power pins; placed adjacent to connector per USB-IF layout guidelines. Use Value: Delivers <1 µA leakage at 7.02 V to avoid VBUS drain, and clamps ESD strikes to ≤12.1 V - prevents latch-up in USB PD controllers like FUSB302. |
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 (Bourns) | 600 W rating, VC = 12.8 V @ 43.5 A; DO-214AA (SMB) package (smaller footprint) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or high-current lightning tests | Select when board space is constrained and peak surge energy ≤600 W suffices |
| 1.5KE8.2CA (ON Semiconductor) | Through-hole DO-15 package; same 1500 W rating but VC = 13.4 V @ 112 A; higher thermal resistance | Requires wave soldering or hand assembly; incompatible with fully SMT production flows | Select only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ8.0CA and 1.5KE8.2CA, the 1.5SMC8.2CA uniquely combines 1500 W surge capability, SMT-ready DO-214AB packaging, and sub-12.1 V clamping in a bidirectional configuration - making it optimal for high-volume automotive and industrial PCBs demanding automated assembly and robust ISO-compliant protection.
Availability
1.5SMC8.2CA is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial PLC I/O modules, telecom DSLAM line cards, and consumer USB-C power delivery designs requiring stable component supply and full ISO 7637-2 compliance.
Supply support for 1.5SMC8.2CA 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, specializing in TVS diodes, rectifiers, MOSFETs, and power management devices.
The 1.5SMC series was engineered specifically for high-power, surface-mount transient suppression in automotive, industrial, and telecom infrastructure - emphasizing reliability under repetitive surge stress, JEDEC-compliant manufacturability, and strict environmental compliance.
FAQ
What does the "CA" suffix indicate in 1.5SMC8.2CA?
The "CA" suffix denotes a bidirectional configuration: the 1.5SMC8.2CA has symmetrical avalanche characteristics in both polarities, with identical breakdown (7.79–8.61 V) and clamping (≤12.1 V) behavior regardless of voltage polarity. This eliminates the need for polarity-aware placement and enables protection of AC signals, differential buses, or ungrounded DC lines - unlike unidirectional variants (e.g., 1.5SMC8.2A) which require correct anode/cathode orientation. The 1.5SMC8.2CA achieves this using a back-to-back diode structure within a single DO-214AB package.
How does 1.5SMC8.2CA perform under repeated surge stress?
The 1.5SMC8.2CA is rated for non-repetitive 1500 W pulses per Fig.5 (10/1000 µs), but its glass-passivated junction and 150°C maximum junction temperature support limited repetitive operation when thermally managed. Derating curves (Fig.2) show ≥50% power retention at 70°C ambient; sustained repetition requires PCB copper area ≥100 mm² per terminal and airflow ≥1 m/s. For applications with >1 surge/minute, thermal simulation using RθJA = 50°C/W is recommended. The 1.5SMC8.2CA does not specify a repetitive surge rating, so each event must be treated as non-repetitive unless validated per IEC 61000-4-5.
Can 1.5SMC8.2CA be used in place of a unidirectional 1.5SMC8.2A?
Yes, the 1.5SMC8.2CA can replace the unidirectional 1.5SMC8.2A in most applications, but with key trade-offs: it offers bidirectional protection without polarity concerns, yet has slightly higher clamping voltage (12.1 V vs. 12.5 V for 1.5SMC8.2) and identical 1500 W rating. However, the 1.5SMC8.2CA's VWM is 7.02 V versus 6.63 V for 1.5SMC8.2 - providing 0.39 V more margin before conduction. No PCB changes are needed since both share DO-214AB packaging and pinout, but system-level validation of bidirectional clamping behavior (e.g., on DC rails with reverse-polarity risk) is advised before substitution.
What is the maximum allowable PCB trace length between 1.5SMC8.2CA and protected node?
To preserve <1.0 ps response and minimize inductive overshoot, PCB traces to the 1.5SMC8.2CA must be as short and wide as possible: ≤5 mm total path length (source-to-TVS-to-ground), ≥0.5 mm width, and routed over solid ground plane. Longer traces add inductance (>10 nH per 10 mm), causing voltage overshoot exceeding VC during fast transients. For 1.5SMC8.2CA protecting a 12 V rail, trace inductance >5 nH may raise clamped voltage above 15 V - defeating its 12.1 V spec. Use dedicated ground vias within 1 mm of each terminal, and avoid daisy-chaining multiple protected nodes through one 1.5SMC8.2CA.
Does 1.5SMC8.2CA meet AEC-Q200 stress testing requirements?
The 1.5SMC8.2CA is not AEC-Q200 qualified; Taiwan Semiconductor's official documentation confirms ISO 7637-2 compliance and industrial temperature range (–55°C to +150°C), but does not list AEC-Q200 test reports or qualification status. While its construction (glass passivation, matte tin leads, MSL1 rating) aligns with many AEC-Q200 requirements, formal qualification requires additional stress tests including temperature cycling, humidity bias, and mechanical shock - none of which are published for this part. For automotive safety-critical applications, consult TSC's AEC-Q200-certified alternatives (e.g., SMAJ8.0CA-Q) or perform independent qualification per customer-specific requirements.
1.5SMC8.2CA 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):
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC8.2CA FAQ
1.How can I place an order for 1.5SMC8.2CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2CA 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 1.5SMC8.2CA reliable?
The price and inventory of 1.5SMC8.2CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC8.2CA is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2CA?
1.5SMC8.2CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2CA 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 1.5SMC8.2CA?
For technical support, including 1.5SMC8.2CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2CA requirements.
6.How does Aetrix verify that 1.5SMC8.2CA is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2CA 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 1.5SMC8.2CA meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2CA?
All 1.5SMC8.2CA units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2CA, 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 1.5SMC8.2CA part is unused and in its original packaging.
Return procedure for 1.5SMC8.2CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC8.2CA Tags
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