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Taiwan Semiconductor Corporation P6SMB47
- Part No.:
- P6SMB47
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47.pdf
- Description:
- 600W, 47V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:7,058
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Product details
Overview
P6SMB47 from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, with a breakdown voltage range of 42.3–51.7 V, clamping voltage of 67.8 V at 9.2 A peak pulse current, and stand-off voltage of 38.1 V. It protects DC power rails in switching mode power supplies, adapters, and display electronics against ESD and surge events per ISO 7637-2.
For engineers reviewing the P6SMB47 datasheet, P6SMB47 pinout, P6SMB47 application, or P6SMB47 equivalent, key selection criteria include its 67.8 V clamping voltage at 9.2 A, 38.1 V working voltage, <1 µA leakage at rated VWM, 1.0 ps response time, and compliance with automotive surge standards including Pulse 1/2a/2b/3a/3b.
Technical Context
The P6SMB47 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its minimum breakdown voltage (42.3 V), entering low-impedance clamping mode to divert surge energy away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at 38.1 V).
Thermal performance is defined by RθJC = 10 °C/W and RθJA = 55 °C/W, supporting reliable operation up to TJ = 150 °C. It meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1, enabling robust reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 42.3 V / 51.7 V - defines guaranteed avalanche initiation window under 1 mA test current |
| VWM | 38.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 67.8 V at 9.2 A - peak clamped voltage during 10/1000 µs surge, limiting stress on protected ICs |
| PPPSM | 600 W - non-repetitive peak pulse power handling capability per standard waveform |
| IR @ VWM | <1 µA - ultra-low reverse leakage ensures minimal standby power loss in high-impedance circuits |
| Response time | <1.0 ps - enables suppression of fast transients before sensitive logic or analog stages are affected |
| TJ max | +150 °C - supports operation in thermally constrained environments such as enclosed power adapters |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, single-diode configuration with cathode band marking. Matte tin-plated leads comply with J-STD-002 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or low-side return path in unidirectional TVS configurations |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., +12 V rail); conducts during overvoltage to shunt current to ground |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast response | <1.0 ps turn-on enables protection against nanosecond-scale ESD and lightning-induced transients |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| ISO 7637-2 compliance | Validated for automotive Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (board-level noise) |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally compliant manufacturing |
Applications
| Switching Mode Power Supply (SMPS) | AC-DC Adapter |
|---|---|
Use Scenario: Input rectifier stage and secondary-side DC bus lines subject to line surges and load-dump transients. IC Role / Device Role: Unidirectional TVS placed across bulk capacitor or MOSFET drain-source to clamp voltage spikes. Use Value: Clamps to 67.8 V at 9.2 A, preventing overvoltage failure of 100 V-rated output capacitors and synchronous rectifiers. | Use Scenario: Low-profile wall-mounted AC-DC adapters powering consumer electronics. IC Role / Device Role: Primary-side transient suppression on bridge rectifier output or secondary-side 5–24 V rail. Use Value: DO-214AA footprint fits tight board space; 38.1 V VWM allows safe operation with 48 V nominal outputs while suppressing 600 W surges. |
| Television Power Board | Monitor Backlight Inverter |
Use Scenario: Main 12 V/24 V power distribution network feeding SoC, memory, and audio subsystems. IC Role / Device Role: Point-of-load TVS on DC input connector and internal rail branches. Use Value: 600 W rating handles repetitive surges from relay switching and EMI filter resonance without degradation. | Use Scenario: High-voltage boost converter output driving CCFL or LED backlight strings. IC Role / Device Role: Clamp diode across transformer secondary or post-regulator node to protect driver ICs. Use Value: 67.8 V clamping voltage aligns with 60–70 V typical open-circuit inverter outputs, avoiding false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ47A | Breakdown range 44.7–49.4 V; clamping voltage 64.8 V at 9.7 A; A-suffix indicates tighter VBR tolerance | Lower clamping voltage improves margin for 60 V-rated components; preferred where tighter VBR control is required | Select SMBJ47A when design requires ±5% VBR tolerance and lower VC vs. P6SMB47's ±10% range and higher clamping |
| 1.5SMC47A | Same VBR/VC specs but in larger DO-214AB (SMC) package; 1500 W rating; higher thermal mass | Used where board layout allows larger footprint and higher surge immunity is needed beyond 600 W | Choose 1.5SMC47A only if mechanical space permits and system-level testing demands >600 W single-pulse capability |
Compared with SMBJ47A and 1.5SMC47A, the P6SMB47 offers optimal balance of compact DO-214AA size, 600 W surge rating, and cost-effective protection for mid-power consumer and industrial DC rails-without requiring PCB redesign or sacrificing clamping performance.
Availability
P6SMB47 is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and television power boards requiring stable component supply, consistent parametric performance, and full traceability through J-STD-020-compliant packaging.
Supply support for P6SMB47 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, rectifiers, and MOSFETs for industrial, computing, and consumer markets.
The P6SMB47 belongs to TSC's P6SMB series of 600 W surface-mount TVS diodes designed specifically for cost-sensitive, space-constrained DC power line protection in automotive-qualified and industrial-grade applications.
FAQ
What is the breakdown voltage range of the P6SMB47?
The P6SMB47 has a guaranteed breakdown voltage range of 42.3 V to 51.7 V at 1 mA test current, measured per ANSI/IEEE C62.35. This range reflects manufacturing tolerance and ensures reliable triggering across temperature and unit-to-unit variation. The P6SMB47 maintains this specification under standard test conditions (TA = 25°C) and is validated across its full operating junction temperature range (–55°C to +150°C).
Is the P6SMB47 unidirectional or bidirectional?
The P6SMB47 is a unidirectional TVS diode, intended for DC line protection where polarity is fixed. Its cathode band marking identifies the clamping terminal, and it conducts only in reverse bias above VBR. For bidirectional AC or floating-rail applications, the P6SMB47C variant (with C suffix) must be used instead-P6SMB47 itself does not support symmetrical clamping in both directions.
What is the maximum clamping voltage of the P6SMB47 under surge conditions?
The P6SMB47 clamps to a maximum of 67.8 V when subjected to a 10/1000 µs surge waveform at 9.2 A peak pulse current. This value is specified in the Electrical Specifications table and represents worst-case voltage seen by downstream components during standardized transient events. The P6SMB47 achieves this clamping performance while maintaining <1 µA leakage at its 38.1 V stand-off voltage.
Does the P6SMB47 meet automotive surge immunity standards?
Yes, the P6SMB47 meets ISO 7637-2 requirements for Pulse 1 (inductive load dump), Pulse 2a/2b (supply disconnection and switching transients), and Pulse 3a/3b (capacitive coupling and board-level noise). These qualifications are explicitly stated in the Features section of the official Taiwan Semiconductor datasheet (Version Q2209), confirming its suitability for automotive body electronics and infotainment power supplies.
What is the thermal resistance profile of the P6SMB47?
The P6SMB47 has a junction-to-case thermal resistance (RθJC) of 10 °C/W and a junction-to-ambient resistance (RθJA) of 55 °C/W, measured in standard JEDEC low-efficiency board conditions. These values enable sustained operation up to +150 °C junction temperature and support thermal design in compact layouts typical of SMB-packaged TVS diodes. The P6SMB47's thermal performance is validated per JEDEC JESD51 standards.
P6SMB47 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):
- 38.1V
- Voltage - Breakdown (Min):
- 42.3V
- Voltage - Clamping (Max) @ Ipp:
- 67.8V
- Current - Peak Pulse (10/1000µs):
- 9.2A
- 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)
P6SMB47 FAQ
1.How can I place an order for P6SMB47 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47 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 P6SMB47 reliable?
The price and inventory of P6SMB47 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB47 is usually 5 days.
3.What payment methods are accepted for P6SMB47?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47?
P6SMB47 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47 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 P6SMB47?
For technical support, including P6SMB47 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47 requirements.
6.How does Aetrix verify that P6SMB47 is sourced from the original manufacturer or authorized distributors?
All P6SMB47 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 P6SMB47 meets industry standards.
7.What is the process for return or replacement of P6SMB47?
All P6SMB47 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47, 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 P6SMB47 part is unused and in its original packaging.
Return procedure for P6SMB47:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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