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Taiwan Semiconductor Corporation P6SMB36
- Part No.:
- P6SMB36
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36.pdf
- Description:
- 600W, 36V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:7,475
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Product details
Overview
P6SMB36 from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a standoff voltage of 29.1V, breakdown voltage range 32.4–39.6V at 1mA, and clamping voltage of 52.0V at 12.0A 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 P6SMB36 datasheet, P6SMB36 pinout, P6SMB36 application, or P6SMB36 equivalent, this page delivers verified electrical parameters, DO-214AA (SMB) package details, clamping performance under 10/1000μs transients, thermal resistance data, and validated alternative parts for automotive-grade power rail protection.
Technical Context
The P6SMB36 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its minimum breakdown voltage (32.4V), clamping transient energy within 1.0ps response time. Its glass-passivated junction ensures stable leakage (<1μA @ 29.1V) and robustness against moisture (J-STD-020 Level 1).
Designed for PCB-level surge suppression, it handles non-repetitive 600W pulses (10/1000μs), dissipates 3W continuously at 25°C, and supports 100A forward surge (8.3ms half-sine). Junction-to-ambient thermal resistance is 55°C/W, enabling reliable operation up to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 29.1 V - Maximum continuous reverse operating voltage before conduction begins; sets safe DC rail margin. |
| VBR (min/max) | 32.4 V / 39.6 V at 1.0 mA - Confirmed avalanche onset range; defines minimum overvoltage threshold for clamping activation. |
| VC @ IPPM | 52.0 V at 12.0 A - Clamped voltage during 10/1000μs surge; determines maximum stress on downstream ICs. |
| PPPSM | 600 W - Peak pulse power rating; quantifies single-event surge energy absorption capability. |
| IR @ VWM | <1 μA - Reverse leakage at standoff voltage; ensures negligible standby power loss and signal integrity. |
| TJ max | +150 °C - Maximum junction temperature; enables use in high-ambient industrial and automotive under-hood environments. |
| RθJA | 55 °C/W - Thermal resistance from junction to ambient; informs heatsinking requirements for sustained pulse duty cycles. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Cathode band denotes polarity; weight ≈ 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / surge return node | Connected to ground or low-impedance return path; carries full transient current during clamping. |
| Cathode | Protected line input / high-side connection | Connected to the line being protected (e.g., +12V rail); reverse-biased during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Fast response time | <1.0 ps - Enables clamping before sensitive downstream circuitry experiences overvoltage stress. |
| Glass passivated junction | Enhanced reliability and long-term stability under thermal cycling and humidity exposure. |
| ISO 7637-2 compliance | Validated for automotive load-dump and supply-line transient immunity (Pulse 1/2a/2b/3a/3b). |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS directives; suitable for environmentally regulated end equipment. |
| Low profile SMB package | Enables automated SMT placement and space-constrained board layouts without sacrificing 600W surge rating. |
Applications
| Switching Mode Power Supply (SMPS) | AC-DC Adapters |
|---|---|
Use Scenario: Protection of primary-side DC bus and secondary-side 12V/24V output rails against switching transients and ESD. IC Role / Device Role: Unidirectional TVS placed across output rails to clamp surges before they reach regulators or controllers. Use Value: Limits voltage excursion to ≤52.0V during 12.0A 10/1000μs pulses, preventing latch-up or damage to downstream DC-DC ICs. | Use Scenario: Input-stage surge suppression in wall-mounted AC-DC adapters subject to lightning-induced line surges. IC Role / Device Role: Line-to-ground TVS on secondary side, absorbing energy from coupled transients entering via transformer leakage. Use Value: Withstands 600W non-repetitive pulses while maintaining <1μA leakage at 29.1V, ensuring no standby power penalty. |
| Television Power Boards | Monitor Backlight Supplies |
Use Scenario: Protection of main 12V/24V logic and audio power rails in flat-panel TV power boards exposed to ESD during service or cable insertion. IC Role / Device Role: Rail clamp between power input and local decoupling, activated only during >32.4V transients. Use Value: Fast 1.0ps response prevents microcontroller resets or audio amplifier latch-up during hot-plug events. | Use Scenario: Surge protection on CCFL or LED backlight driver outputs where high-voltage transients may couple into low-voltage control lines. IC Role / Device Role: Bidirectional-capable variant not used; P6SMB36 serves as unidirectional clamp on low-side return paths. Use Value: Clamps to 52.0V at 12.0A, limiting stress on PWM controllers and MOSFET gate drivers in constant-current backlight circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | Same DO-214AA package, bidirectional variant; VBR = 38.0–42.0V, VC = 58.1V @ 10.3A, PPPSM = 600W. | Supports bipolar transients (e.g., AC-coupled signals); higher clamping voltage reduces margin for 3.3V/5V logic protection. | Select SMBJ36A only if bidirectional clamping is required; P6SMB36 offers lower VC for unidirectional DC rail protection. |
| 1.5SMC36A | DO-214AB (SMC) package; same VBR/VC specs but larger footprint, RθJA = 35°C/W, Ptot = 5W. | Better thermal performance for high-duty-cycle surges; incompatible with SMB land patterns due to larger body and lead spacing. | Choose 1.5SMC36A only when board layout allows SMC footprint and enhanced thermal dissipation is critical. |
Compared with SMBJ36A and 1.5SMC36A, the P6SMB36 provides optimal balance of low clamping voltage (52.0V), compact SMB footprint, and proven ISO 7637-2 compliance-making it preferred for space-constrained, unidirectional DC rail protection in consumer power electronics.
Availability
P6SMB36 is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and television power boards requiring stable component supply, consistent surge performance, and RoHS-compliant manufacturing.
Supply support for P6SMB36 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 TVS diodes, rectifiers, MOSFETs, and power management devices.
The P6SMB36 belongs to TSC's P6SMB series of 600W SMB-packaged TVS diodes, engineered for cost-effective, high-reliability transient suppression in automotive, industrial, and consumer power systems.
FAQ
What is the maximum clamping voltage of the P6SMB36 under standard surge conditions?
The P6SMB36 has a maximum clamping voltage (VC) of 52.0 V when subjected to a 10/1000μs waveform peak pulse current (IPPM) of 12.0 A. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events. The P6SMB36 maintains this clamping performance across its specified operating temperature range.
Is the P6SMB36 suitable for automotive applications requiring ISO 7637-2 compliance?
Yes, the P6SMB36 meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements for transient immunity in automotive 12V systems. Its 600W peak pulse rating, fast <1.0ps response, and guaranteed clamping behavior at 12.0A make it appropriate for protecting ECUs, infotainment power rails, and body control modules-provided it is applied in unidirectional configurations as specified.
What is the standoff voltage (VWM) of the P6SMB36, and how does it relate to system design?
The P6SMB36 has a standoff voltage (VWM) of 29.1 V, meaning it remains non-conductive up to this DC or RMS voltage level. This parameter ensures compatibility with nominal 24V systems (e.g., industrial controls or commercial adapters) where normal operating voltage must stay below VWM to avoid leakage or premature conduction. Designers use VWM to set safe margin between rail voltage and clamping onset.
Does the P6SMB36 have a bidirectional variant, and how does it differ?
No, the P6SMB36 is unidirectional. Its bidirectional counterpart is the P6SMB36A (marking code LVJ), which features symmetric breakdown in both directions (VBR = 34.2–37.8V), same 600W rating, and slightly lower clamping voltage (49.9V @ 12.6A). The P6SMB36A is used where AC-coupled signals or reversible polarity require clamping regardless of voltage polarity-whereas the P6SMB36 is optimized for fixed-polarity DC rails.
What is the thermal resistance and maximum junction temperature specification for the P6SMB36?
The P6SMB36 has a junction-to-ambient thermal resistance (RθJA) of 55°C/W and a maximum junction temperature (TJ) of +150°C. These values define its ability to dissipate heat under pulsed or continuous conditions. At 25°C ambient, its steady-state power dissipation is rated at 3W; derating is required above 25°C per the published pulse derating curve (Fig.2), ensuring long-term reliability in enclosed or high-temperature environments.
P6SMB36 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):
- 29.1V
- Voltage - Breakdown (Min):
- 32.4V
- Voltage - Clamping (Max) @ Ipp:
- 52V
- Current - Peak Pulse (10/1000µs):
- 12A
- 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)
P6SMB36 FAQ
1.How can I place an order for P6SMB36 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36 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 P6SMB36 reliable?
The price and inventory of P6SMB36 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB36 is usually 5 days.
3.What payment methods are accepted for P6SMB36?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36?
P6SMB36 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36 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 P6SMB36?
For technical support, including P6SMB36 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36 requirements.
6.How does Aetrix verify that P6SMB36 is sourced from the original manufacturer or authorized distributors?
All P6SMB36 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 P6SMB36 meets industry standards.
7.What is the process for return or replacement of P6SMB36?
All P6SMB36 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36, 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 P6SMB36 part is unused and in its original packaging.
Return procedure for P6SMB36:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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