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Taiwan Semiconductor Corporation P6SMB75A
- Part No.:
- P6SMB75A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB75A.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,414
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Product details
Overview
P6SMB75A from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a nominal breakdown voltage of 71.3–78.8 V, clamping voltage of 103 V at 6.1 A peak pulse current, and stand-off voltage of 64.1 V. It features glass-passivated junction, <1 µA reverse leakage at VWM, and sub-1 ps response time, deployed for overvoltage protection in DC power rails of switching mode power supplies.
For engineers reviewing the P6SMB75A datasheet, P6SMB75A pinout, P6SMB75A application, or P6SMB75A equivalent, key selection criteria include its DO-214AA (SMB) package compatibility, 103 V clamping performance under 10/1000 µs surge, unidirectional polarity marking, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive electronics robustness.
Technical Context
The P6SMB75A operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its minimum breakdown threshold of 71.3 V at 1 mA test current. Its clamping action limits transient energy to ≤103 V across the protected line during 6.1 A 10/1000 µs pulses, with thermal resistance RθJA = 55 °C/W enabling operation up to +150 °C junction temperature.
Designed for automated SMT placement, it uses a glass-passivated silicon junction to ensure stable VBR tolerance (±5% for 'A' grade), low capacitance (<100 pF at 0 V), and moisture sensitivity level 1 per J-STD-020 - eliminating bake requirements prior to reflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 71.3 V / 78.8 V at 1 mA - defines reliable turn-on range for overvoltage detection |
| VWM | 64.1 V - maximum continuous reverse operating voltage before leakage rises above 1 µA |
| VC @ IPPM | 103 V at 6.1 A (10/1000 µs) - peak clamped voltage seen by downstream circuitry |
| PPPSM | 600 W - non-repetitive surge power handling capability per single transient event |
| IR @ VWM | <1 µA - ensures negligible standby power loss and signal integrity in high-impedance rails |
| TJ max | +150 °C - enables use in thermally constrained environments such as enclosed power adapters |
| Package | DO-214AA (SMB) - industry-standard surface-mount outline with 0.090 g mass and J-STD-002 solderability |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode band marking for polarity identification, UL 94V-0 flammability rating, and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail in unidirectional TVS configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., +12 V input); marked by band on package body |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | 103 V max at 6.1 A pulse - limits voltage overshoot below IC absolute maximum ratings |
| Response speed | <1 ps rise time - reacts faster than most ESD events and switching transients |
| Leakage control | <1 µA at 64.1 V - avoids loading sensitive analog or low-power standby circuits |
| Automated assembly support | DO-214AA footprint with J-STD-002-compliant terminations - compatible with standard SMT pick-and-place |
| Environmental compliance | RoHS-compliant and halogen-free per IEC 61249-2-21 - meets global regulatory requirements |
Applications
| Switching Mode Power Supply (SMPS) | AC-DC Adapters |
|---|---|
Use Scenario: Protection of primary-side DC bus against load dump and inductive kickback in offline SMPS. IC Role / Device Role: Unidirectional TVS placed across bulk capacitor input to clamp surges before they reach controller ICs. Use Value: Withstands 600 W transients while limiting voltage to 103 V, preserving MOSFET and PWM controller reliability. |
Use Scenario: Input-stage surge suppression in compact wall-mounted AC-DC adapters. IC Role / Device Role: Standoff-rated TVS on secondary-side 12 V or 24 V output rail to prevent overvoltage damage to connected devices. Use Value: 64.1 V stand-off allows safe operation under normal regulation while clamping fast transients without false triggering. |
| Flat Panel TV Power Board | Industrial Monitor DC Input |
Use Scenario: Protection of main 24 V or 48 V logic supply against EFT and surge coupling from adjacent circuits. IC Role / Device Role: TVS mounted near connector entry point to shunt transient energy directly to chassis ground. Use Value: Sub-1 ps response ensures clamping occurs before transient propagates into video processing ASICs or memory interfaces. |
Use Scenario: DC input protection for industrial-grade monitors exposed to 24 V field wiring with long cable runs. IC Role / Device Role: Unidirectional suppressor on monitor's external 24 V input to meet IEC 61000-4-5 Level 3 immunity. Use Value: 103 V clamping voltage maintains margin below typical 100 V-rated input capacitors and regulators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A (ON Semiconductor) | Same DO-214AA package, identical VBR (71.3–78.8 V), but higher VC = 107 V at 6.1 A | Slightly reduced clamping margin; may require layout review if downstream ICs operate near 105 V absolute max | Select when cross-manufacturer second sourcing is required and 4 V higher clamping is acceptable |
| 1.5SMC75A (Littelfuse) | Same electrical specs and SMB package, but rated for 1.5 kW peak power (1.5SMC series), not 600 W | Higher surge rating allows extended lifetime in high-cycle industrial environments; same footprint | Prefer for applications subject to repeated surges where P6SMB75A's 600 W rating may degrade faster |
Compared with SMBJ75A and 1.5SMC75A, the P6SMB75A offers tighter VBR tolerance (±5%), lower clamping voltage (103 V vs. 107 V), and optimized cost-performance balance for consumer-grade power supplies where single-event robustness suffices.
Availability
P6SMB75A is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and flat-panel TV power boards requiring stable component supply, consistent lead-time visibility, and full traceability from wafer to shipment.
Supply support for P6SMB75A 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 P6SMB75A belongs to TSC's P6SMBx(A) family of 600 W surface-mount TVS diodes, engineered specifically for cost-sensitive, high-volume DC rail protection in power conversion systems with stringent space constraints.
FAQ
What is the breakdown voltage range of the P6SMB75A?
The P6SMB75A has a guaranteed breakdown voltage range of 71.3 V to 78.8 V at 1 mA test current, per its 'A' grade specification. This ±5% tolerance ensures predictable turn-on behavior in overvoltage protection circuits and distinguishes it from the broader-tolerance P6SMB75 (67.5–82.5 V). The P6SMB75A's tighter VBR window improves design margin consistency across production batches.
Is the P6SMB75A unidirectional or bidirectional?
The P6SMB75A is a unidirectional TVS diode, indicated by the absence of 'C' or 'CA' suffix and confirmed by its cathode-band marking and forward voltage specification (VF = 5.0 V at 50 A). It conducts only in forward bias and clamps transients in reverse bias - making it suitable for DC rail protection where polarity is fixed, unlike bidirectional variants used in AC-coupled or floating lines.
What is the maximum clamping voltage of the P6SMB75A under surge conditions?
The P6SMB75A clamps to a maximum of 103 V when subjected to a 10/1000 µs waveform with a peak pulse current of 6.1 A. This value is measured at the device terminals and represents the highest voltage downstream components will experience during a standardized surge event - critical for ensuring compatibility with 100 V-rated capacitors and controllers in the protected circuit.
Does the P6SMB75A meet automotive transient immunity standards?
Yes, the P6SMB75A meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a (sudden load removal), Pulse 2b (supply interruption), and Pulses 3a/3b (switching noise), verified per its datasheet. Its 600 W rating, fast response, and specified clamping performance make it suitable for 12 V and 24 V automotive subsystems such as infotainment power supplies and display modules.
What is the thermal resistance of the P6SMB75A in its DO-214AA package?
The P6SMB75A has a junction-to-ambient thermal resistance (RθJA) of 55 °C/W and junction-to-case resistance (RθJC) of 10 °C/W in the DO-214AA (SMB) package. These values assume standard PCB mounting with minimal copper area; actual thermal performance improves with added copper pour or thermal vias, supporting reliable operation up to its +150 °C maximum junction temperature.
P6SMB75A 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):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 6.1A
- 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)
P6SMB75A FAQ
1.How can I place an order for P6SMB75A through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB75A 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 P6SMB75A reliable?
The price and inventory of P6SMB75A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB75A is usually 5 days.
3.What payment methods are accepted for P6SMB75A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB75A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB75A?
P6SMB75A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB75A 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 P6SMB75A?
For technical support, including P6SMB75A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB75A requirements.
6.How does Aetrix verify that P6SMB75A is sourced from the original manufacturer or authorized distributors?
All P6SMB75A 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 P6SMB75A meets industry standards.
7.What is the process for return or replacement of P6SMB75A?
All P6SMB75A units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB75A, 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 P6SMB75A part is unused and in its original packaging.
Return procedure for P6SMB75A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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