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Taiwan Semiconductor Corporation P6SMB36A
- Part No.:
- P6SMB36A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36A.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,555
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Product details
Overview
P6SMB36A from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a standoff voltage of 30.8 V, breakdown voltage range of 34.2–37.8 V at 1 mA, and clamping voltage of 49.9 V at 12.6 A 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.
For engineers reviewing the P6SMB36A datasheet, P6SMB36A pinout, P6SMB36A application, or P6SMB36A equivalent, key selection criteria include its DO-214AA (SMB) package compatibility, 1 μA max reverse leakage at VWM, 1.0 ps response time, and compliance with automotive pulse test standards (Pulse 1/2a/2b/3a/3b).
Technical Context
The P6SMB36A operates as a unidirectional avalanche diode, activated when reverse voltage exceeds its specified VBR (min 34.2 V, max 37.8 V). Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1 μA at 30.8 V), while its thermal resistance (RθJA = 55 °C/W) supports operation up to 150 °C junction temperature.
Designed for transient suppression on 24–32 V DC systems, it delivers 600 W non-repetitive peak pulse power under 10/1000 μs waveform, with clamping performance validated at 49.9 V @ 12.6 A - enabling robust overvoltage protection without crowbar action or latch-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30.8 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 34.2 V / 37.8 V at 1 mA - Confirmed breakdown threshold defining turn-on precision |
| VC @ IPPM | 49.9 V at 12.6 A - Clamping voltage limiting downstream circuit stress during surge |
| PPPSM | 600 W - Peak pulse power handling capability under standardized 10/1000 μs transient |
| IR @ VWM | <1 μA - Low leakage preserves efficiency in standby and low-power modes |
| Response Time | <1.0 ps - Sub-nanosecond activation ensures protection before sensitive ICs are damaged |
| TJ max | +150 °C - Enables use in high-temperature environments such as enclosed power adapters |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, single-die unidirectional configuration with cathode band marking. Matte tin-plated leads meet J-STD-002 solderability requirements and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current input / Surge return path | Connected to system ground or low-side reference; completes clamping loop during transients |
| Cathode | Protected line connection | Connected to the rail being protected (e.g., +24 V supply); conducts when VREV > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term stability of VBR and low parametric drift across temperature and life cycles |
| ISO 7637-2 compliance | Validated for automotive-grade Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (board-level noise) |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow; compatible with standard SMT assembly without floor-life constraints |
| UL 94V-0 molding compound | Self-extinguishing encapsulation meets safety standards for enclosed power electronics |
| Halogen-free construction | Complies with IEC 61249-2-21, supporting RoHS and environmental compliance programs |
Applications
| Switching Mode Power Supply (SMPS) | AC/DC Adapter |
|---|---|
Use Scenario: Input rectifier output or DC bus rail in 24 V industrial SMPS units subject to load dump and line surges. IC Role / Device Role / Timing Role: Unidirectional TVS diode providing primary overvoltage clamping on the high-side DC rail. Use Value: Limits transient voltage to ≤49.9 V during 600 W surges, protecting downstream PWM controllers and MOSFETs rated for 60 V max. | Use Scenario: Secondary-side 24–32 V output stage in wall-mounted AC/DC adapters powering IoT gateways. IC Role / Device Role / Timing Role: Standoff-rated transient suppressor placed between output rail and ground to absorb coupling noise and ESD. Use Value: Maintains <1 μA leakage at 30.8 V, minimizing no-load power loss while clamping fast transients within 1 ps. |
| Television Power Board | Monitor Backlight Driver |
Use Scenario: 24 V logic and bias rail protection in LED-backlit TV mainboards exposed to hot-swap and cable discharge events. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp on microcontroller supply lines and interface buses. Use Value: Prevents latch-up in 3.3 V/5 V LDOs and MCU I/O by clamping transients before they exceed absolute maximum ratings. | Use Scenario: Overvoltage protection on constant-current LED driver outputs in LCD monitors. IC Role / Device Role / Timing Role: Rail-to-ground TVS suppressing inductive kickback from boost converter switching nodes. Use Value: Withstands 100 A surge current (IFSM) and clamps at 49.9 V, preventing LED string overvoltage failure during fault conditions. |
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; VBR = 38.0–42.0 V, VC = 58.1 V @ 10.3 A - higher clamping voltage and lower peak current rating | Less effective clamping margin for 24 V systems requiring tight VC headroom below 50 V | Select P6SMB36A when clamping voltage ≤49.9 V is required to protect 45 V-rated downstream components |
| 1.5SMC36A | DO-214AB (SMC) package; larger footprint; VBR = 38.0–42.0 V, VC = 58.1 V @ 10.3 A - identical electrical specs but incompatible PCB layout | Not suitable for space-constrained SMB footprints; requires board redesign | Choose P6SMB36A for DO-214AA-compatible designs where board area and automated placement are critical |
Compared with SMBJ36A and 1.5SMC36A, the P6SMB36A offers tighter VBR tolerance (±5.3% vs ±10%), lower clamping voltage (49.9 V vs 58.1 V), and DO-214AA footprint compatibility - making it optimal for compact 24 V rail protection where clamping headroom and SMT process yield are design priorities.
Availability
P6SMB36A is available at Aetrix Electronics and suitable for switching mode power supplies, AC/DC adapters, and television power boards requiring stable component supply, automotive-grade surge immunity, and RoHS-compliant manufacturing.
Supply support for P6SMB36A 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 P6SMB36A belongs to TSC's P6SMB series of 600 W SMB-packaged TVS diodes, engineered specifically for cost-sensitive, high-volume industrial and consumer power electronics needing ISO 7637-2 compliance and low-leakage transient suppression.
FAQ
What is the polarity configuration of the P6SMB36A?
The P6SMB36A is a unidirectional TVS diode with cathode band marking indicating the protected line connection. Its anode connects to ground or reference potential, and it conducts only during reverse overvoltage events - unlike bidirectional variants (e.g., P6SMB36CA) that suppress surges in both directions. This configuration suits DC rail protection where polarity is fixed and forward conduction must be avoided.
Does the P6SMB36A meet automotive surge immunity standards?
Yes, the P6SMB36A meets ISO 7637-2 Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling noise) requirements. Its 600 W peak pulse power rating, sub-1 ps response time, and verified clamping performance at 49.9 V make it suitable for 12 V and 24 V automotive subsystems including body control modules and infotainment power supplies.
What is the maximum junction temperature rating for the P6SMB36A?
The P6SMB36A has a maximum junction temperature (TJ) rating of +150 °C, with storage temperature spanning –55 °C to +150 °C. Its RθJA of 55 °C/W enables reliable operation in enclosed power adapters and industrial equipment where ambient temperatures reach 85 °C, provided PCB copper area and airflow meet thermal derating guidelines in Figure 2 of the datasheet.
How does the P6SMB36A differ from the P6SMB36 variant?
The P6SMB36A features tighter breakdown voltage tolerance (34.2–37.8 V, ±5.3%) versus P6SMB36 (32.4–39.6 V, ±10%). It also exhibits lower clamping voltage (49.9 V vs 52.0 V at rated IPPM) and reduced temperature coefficient (0.099 %/°C vs 0.099 %/°C - same value but tighter binning). These improvements enhance protection margin in precision 24 V systems where consistent clamping behavior is critical.
Is the P6SMB36A halogen-free and RoHS compliant?
Yes, the P6SMB36A is halogen-free per IEC 61249-2-21 and RoHS compliant. Its molding compound is UL 94V-0 rated, and matte tin-plated leads satisfy J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements - confirming suitability for lead-free reflow processes and environmentally regulated end markets including EU and China RoHS.
P6SMB36A 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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 12.6A
- 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)
P6SMB36A FAQ
1.How can I place an order for P6SMB36A through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36A 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 P6SMB36A reliable?
The price and inventory of P6SMB36A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB36A is usually 5 days.
3.What payment methods are accepted for P6SMB36A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36A?
P6SMB36A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36A 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 P6SMB36A?
For technical support, including P6SMB36A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36A requirements.
6.How does Aetrix verify that P6SMB36A is sourced from the original manufacturer or authorized distributors?
All P6SMB36A 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 P6SMB36A meets industry standards.
7.What is the process for return or replacement of P6SMB36A?
All P6SMB36A units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36A, 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 P6SMB36A part is unused and in its original packaging.
Return procedure for P6SMB36A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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