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Taiwan Semiconductor Corporation P6SMB56CA
- Part No.:
- P6SMB56CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB56CA.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,913
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Product details
Overview
P6SMB56CA from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, with a minimum breakdown voltage of 53.2 V, maximum clamping voltage of 77.0 V at 8.1 A peak pulse current, and stand-off voltage of 47.8 V. It protects DC power rails in switching mode power supplies, adapters, and display electronics against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P6SMB56CA datasheet, P6SMB56CA pinout, P6SMB56CA application, or P6SMB56CA equivalent, key selection criteria include bidirectional clamping capability, 77.0 V max VC under 10/1000 µs surge, <1 µA reverse leakage at 47.8 V, 150 °C junction rating, and DO-214AA mechanical compatibility with automated SMT assembly.
Technical Context
The P6SMB56CA implements a glass-passivated silicon avalanche junction optimized for fast transient suppression, with typical response time <1.0 ps from 0 V to VBR(min). Its bipolar configuration enables symmetrical clamping in both directions without external polarity management.
Thermally, it features RθJC = 10 °C/W and RθJA = 55 °C/W, supporting continuous operation up to 150 °C junction temperature. It meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V - Ensures reliable avalanche conduction onset within defined tolerance band at 1 mA test current |
| VWM | 47.8 V - Maximum continuous reverse working voltage before significant leakage begins |
| VC@IPPM | 77.0 V at 8.1 A - Peak clamped voltage during 10/1000 µs surge, defining protected circuit's worst-case overvoltage |
| PPPSM | 600 W - Non-repetitive peak pulse power handling per standard waveform, enabling robust ESD/surge immunity |
| IR @ VWM | <1 µA - Ultra-low leakage preserves efficiency in high-impedance bias or sensing circuits |
| TJ(max) | +150 °C - Enables use in thermally constrained environments such as enclosed power adapters or automotive under-hood modules |
| Package | DO-214AA (SMB) - Standardized surface-mount outline with 0.090 g mass and UL 94V-0 molding compound |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability; polarity indicated by band on cathode end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Transient return path for negative surges | Completes bidirectional clamping loop; connects to ground or low-side rail in symmetric protection schemes |
| Cathode (banded end) | Transient return path for positive surges | Connects to protected line; band orientation confirms polarity during manual inspection and automated optical recognition |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating DC lines without external diode pairing |
| Glass-passivated junction | Improves long-term reliability and stability of VBR under thermal cycling and humidity stress |
| ISO 7637-2 compliance | Validated performance against automotive-level load dump and inductive switch-off transients (Pulse 1/2a/2b/3a/3b) |
| Fast response time | <1.0 ps rise-to-VBR ensures suppression before sensitive downstream components experience overstress |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive for environmentally compliant manufacturing and end-of-life processing |
Applications
| Switching Mode Power Supply (SMPS) | AC-DC Adapter |
|---|---|
Use Scenario: Input rectifier output rail subjected to line-induced surges and MOSFET switching noise. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across bulk capacitor to clamp differential-mode spikes. Use Value: Limits peak rail voltage to ≤77.0 V during 10/1000 µs transients, preventing overvoltage failure of primary-side controller and bulk capacitor. | Use Scenario: Secondary-side 12 V or 19 V DC output exposed to cable discharge events and load-dump coupling. IC Role / Device Role / Timing Role: Bidirectional TVS connected between output and ground to absorb both positive and negative polarity transients. Use Value: Maintains output regulation integrity by clamping surges within ±77.0 V envelope while drawing <1 µA leakage at nominal 47.8 V operating point. |
| Television Power Board | Monitor Backlight Inverter |
Use Scenario: Main 24 V or 48 V logic supply feeding microcontroller and display driver ICs. IC Role / Device Role / Timing Role: Primary overvoltage protection device located at board entry point before DC-DC converters. Use Value: Withstands repetitive 600 W surges without degradation, ensuring sustained immunity across product lifetime in consumer-grade TV applications. | Use Scenario: High-voltage CCFL or LED backlight driver output susceptible to arc-induced transients. IC Role / Device Role / Timing Role: Clamping element across transformer secondary or LED string to limit flyback voltage overshoot. Use Value: Fast <1.0 ps response prevents gate oxide damage in driver MOSFETs; DO-214AA footprint allows placement near high-dV/dt nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ56CA | Same DO-214AA package, identical VBR range (53.2–58.8 V), but rated for 600 W per JEDEC standards with tighter VC spec (77.0 V vs. 79.0 V typical) | Designed for broader industrial temperature range (-65 °C to +150 °C) versus P6SMB56CA's -55 °C to +150 °C | Select SMBJ56CA when extended low-temperature operation or tighter clamping consistency is required |
| 1.5SMC56CA | Larger DO-214AB (SMC) package; same electrical specs but higher thermal mass (RθJA = 40 °C/W vs. 55 °C/W) and 1.5 kW peak power rating | Used where PCB space permits larger footprint and higher surge margin is needed beyond 600 W | Choose 1.5SMC56CA for high-reliability industrial systems requiring derated surge headroom or improved thermal dissipation |
Compared with SMBJ56CA and 1.5SMC56CA, the P6SMB56CA offers optimal balance of compact DO-214AA footprint, certified ISO 7637-2 compliance, and cost-effective 600 W surge handling-making it ideal for space-constrained consumer power electronics where exact 77.0 V clamping and <1 µA leakage are design-critical.
Availability
P6SMB56CA is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and television power boards requiring stable component supply and consistent surge immunity performance.
Supply support for P6SMB56CA 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 power management, protection, and signal conditioning devices.
The P6SMB56CA belongs to TSC's P6SMBx(A) series of surface-mount TVS diodes, engineered specifically for cost-sensitive, high-volume consumer and industrial power supply protection with emphasis on automated assembly compatibility and international transient immunity standards.
FAQ
What is the clamping voltage of the P6SMB56CA under a 10/1000 µs surge?
The P6SMB56CA has a maximum clamping voltage (VC) of 77.0 V when subjected to its rated peak pulse current of 8.1 A using the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events. The P6SMB56CA maintains this clamping performance consistently across its qualified operating temperature range.
Is the P6SMB56CA unidirectional or bidirectional?
The P6SMB56CA is a bidirectional transient voltage suppressor, indicated by the "CA" suffix per Taiwan Semiconductor's naming convention. It provides symmetrical clamping in both polarities, making it suitable for protecting AC-coupled signals or floating DC rails without requiring external polarity configuration. Electrical characteristics-including VBR, VC, and IPPM-apply identically in either direction.
What package type does the P6SMB56CA use, and is it compatible with standard SMT processes?
The P6SMB56CA uses the DO-214AA (SMB) surface-mount package, featuring matte tin-plated leads that meet J-STD-002 solderability requirements. Its low-profile construction and defined pad layout support high-yield automated placement and reflow soldering. The device is rated MSL Level 1 per J-STD-020, meaning it can be stored indefinitely at ambient conditions without baking prior to assembly.
Does the P6SMB56CA comply with automotive transient immunity standards?
Yes, the P6SMB56CA meets ISO 7637-2 requirements for Pulse 1, 2a, 2b, 3a, and 3b waveforms-standardized tests for electrical disturbances in automotive 12 V and 24 V systems. This compliance is explicitly stated in Taiwan Semiconductor's datasheet and verified through characterization per the standard's test methodology, confirming suitability for infotainment, body control, and accessory power modules.
What is the maximum junction temperature rating for the P6SMB56CA?
The P6SMB56CA has a maximum junction temperature (TJ) rating of +150 °C, with an operational storage temperature range of -55 °C to +150 °C. This rating supports use in thermally demanding environments such as enclosed power adapters or high-density PCB layouts. Thermal performance is characterized by RθJC = 10 °C/W and RθJA = 55 °C/W, enabling accurate thermal modeling in system-level designs involving the P6SMB56CA.
P6SMB56CA 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 8.1A
- 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)
P6SMB56CA FAQ
1.How can I place an order for P6SMB56CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB56CA 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 P6SMB56CA reliable?
The price and inventory of P6SMB56CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB56CA is usually 5 days.
3.What payment methods are accepted for P6SMB56CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB56CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB56CA?
P6SMB56CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB56CA 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 P6SMB56CA?
For technical support, including P6SMB56CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB56CA requirements.
6.How does Aetrix verify that P6SMB56CA is sourced from the original manufacturer or authorized distributors?
All P6SMB56CA 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 P6SMB56CA meets industry standards.
7.What is the process for return or replacement of P6SMB56CA?
All P6SMB56CA units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB56CA, 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 P6SMB56CA part is unused and in its original packaging.
Return procedure for P6SMB56CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB56CA Tags
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