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Taiwan Semiconductor Corporation P6SMB24A
- Part No.:
- P6SMB24A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24A.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,194
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Product details
Overview
P6SMB24A from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a standoff voltage of 20.5V, breakdown voltage range of 22.8V–25.2V at 1mA, and clamping voltage of 33.2V at 19A peak pulse current. 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 P6SMB24A datasheet, P6SMB24A pinout, P6SMB24A application, or P6SMB24A equivalent, key selection criteria include unidirectional polarity, DO-214AA (SMB) package compatibility, 150°C junction rating, sub-1μA leakage at VWM, and verified clamping performance under 10/1000μs transients.
Technical Context
The P6SMB24A employs a glass-passivated silicon junction optimized for fast transient response (<1.0ps rise time from 0V to VBR min) and low capacitance. Its thermal design supports 10°C/W junction-to-case resistance and operates across –55°C to +150°C ambient, with derating above 25°C per Fig.2.
It delivers 600W non-repetitive peak pulse power (10/1000μs waveform), withstands 100A forward surge (8.3ms half-sine), and maintains <1μA reverse leakage at 20.5V standoff-critical for low-power standby circuits and high-reliability industrial power inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 20.5 V - Maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VBR (min/max) | 22.8 V / 25.2 V @ 1 mA - Confirmed breakdown threshold range ensuring reliable turn-on during overvoltage |
| VC @ IPPM | 33.2 V @ 19 A - Clamped voltage during 10/1000μs surge, limiting downstream IC stress |
| PPPSM | 600 W - Peak pulse power handling capacity for automotive and industrial surge immunity |
| IR @ VWM | <1 μA - Ultra-low leakage preserves battery life and signal integrity in always-on systems |
| TJ max | +150 °C - Enables operation in thermally constrained PCB layouts near power converters |
| Package | DO-214AA (SMB) - Standardized surface-mount outline compatible with automated pick-and-place |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band; weight ≈ 0.090 g; UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to protected circuit ground or low-side return path |
| Cathode | Current exit point in forward bias; high-impedance terminal in reverse standoff | Connected to line/voltage rail being protected; cathode band marks this terminal on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR and low leakage over temperature and lifetime |
| ISO 7637-2 compliance | Validated immunity to automotive load dump and inductive switching transients (Pulse 1/2a/2b/3a/3b) |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; supports standard SMT assembly without preconditioning |
| Halogen-free & RoHS compliant | Fulfills environmental compliance for EU, China RoHS, and JEITA standards |
| Fast response time | <1.0 ps from 0 V to VBR min enables protection of high-speed digital interfaces and sensitive analog front-ends |
Applications
| Switching Mode Power Supply (SMPS) | AC-DC Adapter |
|---|---|
Use Scenario: Input rectifier stage and DC bus lines exposed to line surges and inductive kickback. IC Role / Device Role: Unidirectional TVS clamp placed between input rail and ground to shunt transient energy. Use Value: Limits voltage excursion to ≤33.2V during 600W 10/1000μs pulses, preventing MOSFET gate oxide failure and controller latch-up. | Use Scenario: Secondary-side DC output lines subject to hot-plug and cable discharge events. IC Role / Device Role: Output rail protector downstream of regulation, guarding USB/5V logic rails. Use Value: Sub-1μA leakage at 20.5V ensures no impact on light-load efficiency; SMB footprint fits compact adapter PCBs. |
| Television Power Board | Monitor Backlight Inverter |
Use Scenario: Main 24V/12V distribution net feeding audio amplifiers, tuners, and microcontrollers. IC Role / Device Role: Primary overvoltage clamp on main DC bus, coordinated with upstream fusing. Use Value: 150°C TJ rating sustains reliability in enclosed chassis with limited airflow and ambient up to 85°C. | Use Scenario: High-voltage boost converter output driving CCFL or LED strings. IC Role / Device Role: Transient suppressor across transformer secondary or inverter output capacitor. Use Value: 33.2V clamping prevents overvoltage damage to PWM controllers and gate drivers during lamp strike transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | Same DO-214AA package, identical VWM/VBR/VC specs, but from STMicroelectronics; RθJA = 50°C/W vs. 55°C/W | No functional difference in clamping or surge rating; minor thermal margin advantage in high-density layouts | Select SMBJ24A if prefer ST's qualification data or require tighter thermal resistance |
| 1.5SMC24A | Larger DO-214AB (SMC) package; same electrical specs but higher PPPSM = 1500W; 1.5× footprint area | Used where board space allows larger package for enhanced thermal mass and higher single-pulse robustness | Choose 1.5SMC24A only when 1500W pulse handling is required and SMB footprint is insufficient |
Compared with SMBJ24A and 1.5SMC24A, the P6SMB24A offers optimal balance of 600W surge capability, minimal SMB footprint, and ultra-low leakage-making it ideal for space-constrained, thermally moderate applications like consumer power boards and display subsystems.
Availability
P6SMB24A 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.
Supply support for P6SMB24A 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 P6SMB24A belongs to TSC's P6SMB series of 600W SMB-packaged TVS diodes, engineered specifically for cost-sensitive, high-volume surge protection in power conversion and interface circuits.
FAQ
What is the polarity configuration of the P6SMB24A?
The P6SMB24A is a unidirectional TVS diode, meaning it conducts only in reverse breakdown (cathode positive relative to anode) and blocks voltage in the forward direction. Polarity is marked by a cathode band on the DO-214AA body. This configuration is used where DC rail polarity is fixed and only negative-going transients or positive surges on the protected line require clamping-unlike bidirectional variants (e.g., P6SMB24CA) that protect both polarities.
Does the P6SMB24A meet automotive surge immunity standards?
Yes, the P6SMB24A meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a (sudden load removal), Pulse 2b (supply interruption), Pulse 3a (capacitive coupled noise), and Pulse 3b (ground noise). Its 600W 10/1000μs rating and verified clamping behavior make it suitable for 12V/24V automotive subsystems such as infotainment power rails and body control modules-provided layout and grounding follow best practices for transient suppression.
What is the maximum peak pulse current the P6SMB24A can handle?
The P6SMB24A has a maximum peak pulse current (IPPM) of 19 A under the standard 10/1000μs waveform. This value is derived from its 600W peak pulse power rating and 33.2V clamping voltage (IPPM = PPPSM / VC). Exceeding this current-even briefly-may cause permanent degradation or thermal runaway, so system-level surge modeling must ensure worst-case transients stay within this limit.
How does the P6SMB24A compare to the P6SMB24 (non-A) variant?
The P6SMB24A offers tighter breakdown voltage tolerance (22.8V–25.2V) versus the P6SMB24 (21.6V–26.4V), resulting in more predictable clamping onset and reduced risk of premature conduction. Both share identical package, power rating, and thermal specs-but the "A" suffix denotes improved VBR uniformity, making P6SMB24A preferred for designs requiring precise overvoltage thresholds, such as regulated 24V industrial sensors or medical power supplies.
Is the P6SMB24A halogen-free and RoHS compliant?
Yes, the P6SMB24A is certified halogen-free per IEC 61249-2-21 and RoHS compliant per EU Directive 2011/65/EU. The molding compound contains no brominated flame retardants (BFRs), chlorinated flame retardants (CFRs), antimony trioxide, or phosphorus-based flame retardants above threshold limits. This ensures compatibility with lead-free reflow profiles and meets environmental requirements for global electronics manufacturing and end-of-life disposal.
P6SMB24A 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):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 19A
- 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)
P6SMB24A FAQ
1.How can I place an order for P6SMB24A through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24A 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 P6SMB24A reliable?
The price and inventory of P6SMB24A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB24A is usually 5 days.
3.What payment methods are accepted for P6SMB24A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24A?
P6SMB24A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24A 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 P6SMB24A?
For technical support, including P6SMB24A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24A requirements.
6.How does Aetrix verify that P6SMB24A is sourced from the original manufacturer or authorized distributors?
All P6SMB24A 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 P6SMB24A meets industry standards.
7.What is the process for return or replacement of P6SMB24A?
All P6SMB24A units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24A, 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 P6SMB24A part is unused and in its original packaging.
Return procedure for P6SMB24A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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