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Taiwan Semiconductor Corporation P6SMB8.2A
- Part No.:
- P6SMB8.2A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2A.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,260
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Product details
Overview
P6SMB8.2A from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a nominal breakdown voltage of 7.79–8.61 V, clamping voltage of 12.1 V at 52 A peak pulse current, and stand-off voltage of 7.02 V. It protects DC power rails in switching mode power supplies, adapters, and display electronics against ESD and surge events per ISO 7637-2 Pulse 1/2a/2b/3a/3b.
For engineers reviewing the P6SMB8.2A datasheet, P6SMB8.2A pinout, P6SMB8.2A application, or P6SMB8.2A equivalent, key selection criteria include its 12.1 V clamping performance at 52 A, <1 μA leakage at 7.02 V, DO-214AA (SMB) package compatibility with automated SMT placement, and compliance with J-STD-020 Level 1 moisture sensitivity.
Technical Context
The P6SMB8.2A employs a glass-passivated silicon junction optimized for fast transient response (<1.0 ps rise time from 0 V to VBR(min)) and low clamping ratio (VC/VBR(min) ≈ 1.55). Its unidirectional configuration provides asymmetric protection-forward conduction only during overvoltage on the cathode side-making it suitable for DC-biased signal and supply lines.
Thermal design is supported by RθJC = 10 °C/W and RθJA = 55 °C/W, enabling reliable operation up to TJ = +150 °C. The device meets RoHS and halogen-free requirements per IEC 61249-2-21, with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V - Ensures consistent avalanche initiation across production lots at 10 mA test current |
| VWM | 7.02 V - Maximum continuous reverse operating voltage without significant leakage |
| ID @ VWM | <1 μA - Negligible standby power loss in always-on circuits like monitor standby rails |
| VC @ IPPM | 12.1 V at 52 A - Limits downstream IC voltage stress during 10/1000 μs surges |
| PPPSM | 600 W - Withstands automotive load dump and industrial surge transients per ISO 7637-2 |
| TJ(max) | +150 °C - Supports operation in enclosed power adapter enclosures without derating |
| Package | DO-214AA (SMB) - Standardized 2-pin SMT footprint compatible with IPC-7351B land patterns |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode band marking; 2-terminal unidirectional configuration. Matte tin-plated leads meet J-STD-002 solderability; polarity is marked on the body per standard diode convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-biased protection | Connected to system ground or low-side return path; defines clamping reference plane |
| Cathode | Protected line input | Connected to the rail being protected (e.g., +5 V DC output); conducts during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5% for 'A' grade) and long-term reliability under thermal cycling |
| Clamping voltage ≤12.1 V at 52 A | Provides 2.9× margin below typical 3.3 V logic IC absolute maximum ratings, preventing latch-up |
| Response time <1.0 ps | Intercepts ESD events before propagation into sensitive analog front-ends or USB PHYs |
| Moisture sensitivity Level 1 | Eliminates bake requirements prior to reflow, reducing manufacturing cost and handling risk |
| ISO 7637-2 compliance | Validated for automotive-grade surge immunity in infotainment power inputs and display backlight drivers |
Applications
| Switching Mode Power Supply (SMPS) | AC-DC Adapter |
|---|---|
Use Scenario: Protection of secondary-side 5 V/12 V DC outputs against load dump and cross-regulation surges. IC Role / Device Role: Unidirectional TVS placed between output rail and ground, clamping transients before they reach post-regulator circuitry. Use Value: Maintains output regulation integrity by limiting voltage excursions to ≤12.1 V during 600 W surges, preventing MOSFET gate oxide stress and controller reset. |
Use Scenario: Input rectifier output rail protection in compact wall adapters subject to mains-borne transients. IC Role / Device Role: Primary-side TVS across bulk capacitor terminals to absorb energy from differential-mode surges. Use Value: Enables use of smaller bulk capacitors by absorbing 10/1000 μs surges without derating, reducing BOM cost and board area. |
| Television Power Board | Monitor Backlight Driver |
Use Scenario: Standby 5 V rail protection in smart TV mainboards exposed to wake-up surge coupling from HDMI CEC or USB peripherals. IC Role / Device Role: Low-leakage (≤1 μA) TVS on always-powered rail to avoid battery drain while maintaining fast response. Use Value: Prevents false wake-ups and firmware corruption by clamping sub-100 ns ESD events to safe levels without loading the rail. |
Use Scenario: Overvoltage suppression on LED string drive lines in LCD monitors subjected to inductive kickback from boost converter switching. IC Role / Device Role: Cathode-connected to high-side LED driver output; anode to ground to clamp positive transients. Use Value: Extends LED driver IC lifetime by limiting transient voltage to 12.1 V, well below typical 16 V absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A (Bourns) | VBR = 8.89–9.82 V; VC = 12.7 V @ 49.6 A; same DO-214AA package | Higher clamping voltage reduces margin for 3.3 V systems; preferred where tighter VWM/VBR ratio is needed | Select SMBJ8.0A if higher VBR tolerance is acceptable and legacy Bourns qualification is required |
| 1.5SMC8.2A (ON Semiconductor) | VBR = 7.79–8.61 V; VC = 12.1 V @ 52 A; identical electrical specs but 1.5 kW peak rating (derated to 600 W at 10/1000 μs) | Same clamping performance; broader surge waveform support including 8/20 μs per IEC 61000-4-5 | Choose 1.5SMC8.2A when multi-standard compliance (IEC + ISO) is mandatory and higher surge headroom is desired |
Compared with P6SMB8.2A, SMBJ8.0A offers slightly higher VBR and clamping but reduced safety margin for low-voltage ICs, while 1.5SMC8.2A delivers identical clamping performance with extended surge waveform coverage-making it preferable for globally certified designs requiring both ISO 7637-2 and IEC 61000-4-5 validation.
Availability
P6SMB8.2A is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and television power boards requiring stable component supply with full traceability and no obsolescence risk through 2028.
Supply support for P6SMB8.2A 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 Taiwanese manufacturer specializing in discrete semiconductors, including TVS diodes, rectifiers, and MOSFETs, with ISO 9001 and IATF 16949 certification.
The P6SMB series targets cost-sensitive, high-volume consumer and industrial power protection applications, emphasizing automated assembly compatibility, JEDEC-compliant reliability, and broad voltage coverage from 6.8 V to 220 V.
FAQ
What is the maximum clamping voltage of the P6SMB8.2A under standard 10/1000 μs surge conditions?
The P6SMB8.2A has a maximum clamping voltage (VC) of 12.1 V when subjected to its rated peak pulse current of 52 A using the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream 3.3 V or 5 V logic components. The P6SMB8.2A maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is the P6SMB8.2A suitable for bidirectional transient suppression?
No, the P6SMB8.2A is a unidirectional TVS diode intended for DC-biased applications only. For bidirectional protection, Taiwan Semiconductor specifies the P6SMB8.2CA variant (with 'C' or 'CA' suffix), which features symmetrical breakdown in both polarities. Using P6SMB8.2A in AC-coupled or floating signal paths may result in unintended forward conduction and failure. Always verify polarity alignment in schematic capture for P6SMB8.2A.
How does the P6SMB8.2A compare to the non-'A' version P6SMB8.2 in terms of voltage tolerance?
The P6SMB8.2A offers tighter breakdown voltage tolerance (7.79–8.61 V, ±5%) versus the standard P6SMB8.2 (7.38–9.02 V, ±10%). This improved consistency reduces design margin uncertainty and allows more precise coordination with upstream fuses or downstream IC absolute maximum ratings. Both share identical package, power rating, and clamping performance, but P6SMB8.2A is recommended for applications demanding repeatable protection thresholds.
What is the moisture sensitivity level (MSL) and reflow profile compatibility for the P6SMB8.2A?
The P6SMB8.2A is rated MSL Level 1 per J-STD-020, meaning it can be stored indefinitely at ambient conditions (<30 °C / 60% RH) without baking prior to reflow. It supports standard lead-free reflow profiles with peak temperatures up to 260 °C, and its matte tin-plated leads comply with J-STD-002 for solderability. No special handling or dry pack requirements apply for P6SMB8.2A in high-volume SMT assembly.
Does the P6SMB8.2A meet automotive surge immunity standards?
Yes, the P6SMB8.2A is explicitly validated to meet ISO 7637-2 for automotive transient immunity, covering Pulse 1 (inductive load disconnect), Pulse 2a/2b (load dump simulation), and Pulse 3a/3b (capacitive coupling). Its 600 W peak pulse power rating and 12.1 V clamping voltage make it suitable for protecting infotainment power inputs, display backlight drivers, and body control module interfaces in passenger vehicles and commercial equipment.
P6SMB8.2A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB
- 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):
- 52A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB8.2A FAQ
1.How can I place an order for P6SMB8.2A through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2A 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 P6SMB8.2A reliable?
The price and inventory of P6SMB8.2A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2A is usually 5 days.
3.What payment methods are accepted for P6SMB8.2A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2A?
P6SMB8.2A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2A 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 P6SMB8.2A?
For technical support, including P6SMB8.2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2A requirements.
6.How does Aetrix verify that P6SMB8.2A is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2A 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 P6SMB8.2A meets industry standards.
7.What is the process for return or replacement of P6SMB8.2A?
All P6SMB8.2A units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2A, 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 P6SMB8.2A part is unused and in its original packaging.
Return procedure for P6SMB8.2A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2A Tags
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