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Taiwan Semiconductor Corporation P6SMB36CA
- Part No.:
- P6SMB36CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36CA.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,990
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Product details
Overview
P6SMB36CA from Taiwan Semiconductor is a bidirectional 600W surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a standoff voltage of 30.8 V, breakdown voltage range of 34.2–37.8 V at 1 mA, clamping voltage of 49.9 V at 12.6 A peak pulse current, and operates across –55°C to +150°C junction temperature.
For engineers reviewing the P6SMB36CA datasheet, P6SMB36CA pinout, P6SMB36CA application, or P6SMB36CA equivalent, this device is selected for high-energy surge immunity in automotive power supplies, industrial SMPS inputs, and consumer electronics interfaces where bidirectional transient suppression with low leakage (<1 µA @ 30.8 V) and fast sub-nanosecond response is required.
Technical Context
The P6SMB36CA implements a glass-passivated silicon avalanche junction optimized for unidirectional or bidirectional clamping per ISO 7637-2 Pulse 1/2a/2b/3a/3b waveforms. Its DO-214AA (SMB) package enables automated placement and provides 10°C/W junction-to-case thermal resistance for reliable power dissipation during repetitive transients.
Electrical behavior is defined by tightly controlled VBR min/max (34.2 V / 37.8 V), low temperature coefficient (0.099 %/°C), and guaranteed clamping performance (VC = 49.9 V @ IPPM = 12.6 A, 10/1000 µs waveform), ensuring predictable protection margins in 24–48 V system rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30.8 V - Maximum continuous reverse working voltage before significant leakage; sets upper limit for normal operating rail voltage. |
| VBR (min/max) | 34.2 V / 37.8 V - Breakdown occurs within this range at 1 mA test current; defines onset of clamping action. |
| VC @ IPPM | 49.9 V @ 12.6 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected downstream circuitry. |
| PPPM | 600 W - Peak pulse power handling capability; supports high-energy transients without failure. |
| ID @ VWM | <1 µA - Reverse leakage at rated standoff voltage; ensures minimal standby power loss and signal integrity. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or enclosed industrial environments. |
| RθJA | 55 °C/W - Junction-to-ambient thermal resistance; informs PCB copper area requirements for thermal management. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, bidirectional configuration with cathode band omitted (symmetrical terminals). Matte tin-plated leads, RoHS and halogen-free compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction terminals | No polarity marking required; identical clamping behavior in both directions; connects across protected line and return path. |
Key Features
| Feature | Design Value |
|---|---|
| ISO 7637-2 compliance | Validated against Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), enabling drop-in use in automotive ECUs and body control modules. |
| Fast response time | <1.0 ps rise time from 0 V to VBR min ensures clamping initiates before sensitive ICs experience overstress during ESD or lightning-induced surges. |
| Low IR leakage | <1 µA @ 30.8 V minimizes quiescent current draw in battery-backed or energy-harvesting systems and avoids false triggering in high-impedance sensing nodes. |
| DO-214AA mechanical robustness | UL 94V-0 molding compound and JESD201 Class 2 whisker resistance ensure long-term reliability in reflow-soldered industrial assemblies subject to thermal cycling. |
Applications
| Automotive Power Distribution | Industrial SMPS Input Stage |
|---|---|
Use Scenario: Protection of 24 V battery-fed control units against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Bidirectional TVS placed across main power input to clamp surges before DC-DC converters and microcontrollers. Use Value: Withstands 600 W pulses and clamps to 49.9 V, keeping downstream 36 V-rated components within safe operating area during 120 V/50 ms load dump events. |
Use Scenario: Input rail protection in 48 V telecom rectifiers and programmable logic controller (PLC) power supplies. IC Role / Device Role / Timing Role: Primary surge suppressor on AC-DC front-end, coordinated with MOVs and filter inductors. Use Value: Low 0.099 %/°C VBR drift ensures stable clamping threshold across –40°C to +85°C ambient, critical for outdoor cabinet deployments. |
| Consumer Display Power Rails | USB-C PD Port Protection |
Use Scenario: Overvoltage safeguard on 12–19 V backlight and logic rails in LCD/LED monitors and TVs. IC Role / Device Role / Timing Role: Secondary-level TVS after bulk filtering, guarding against ESD and hot-swap transients. Use Value: Sub-1 µA leakage preserves standby efficiency; DO-214AA footprint allows dense layout near connectors and display drivers. |
Use Scenario: Bidirectional surge suppression on VBUS line of USB-C ports supporting up to 20 V PD profiles. IC Role / Device Role / Timing Role: Line-to-ground TVS placed immediately adjacent to port connector to shunt fast transients before protection ICs. Use Value: 49.9 V clamping ensures compatibility with 20 V PD3.1 specifications while maintaining margin below 50 V absolute maximum ratings of common PD controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA (Bourns) | Same DO-214AA package, identical 36 V nominal rating, but higher VC = 58.1 V @ 10.3 A; 10% lower PPPM derating above 75°C. | Marginally higher clamping voltage reduces protection headroom for 36 V-rated loads; preferred where higher surge repetition rate is expected. | Select SMBJ36CA if board-level thermal management exceeds 75°C ambient or if legacy Bourns qualification is mandated. |
| 1.5SMC36CA (ON Semiconductor) | Same 36 V rating and DO-214AB (SMC) package; larger footprint (7.11 × 6.22 mm vs. 4.57 × 3.94 mm); VC = 58.1 V @ 10.3 A; higher IFSM = 200 A. | Larger SMC package offers better thermal mass but requires PCB redesign; suited for high-reliability industrial mains-connected equipment. | Choose 1.5SMC36CA only when higher single-pulse surge tolerance (200 A IFSM) is required and board space permits SMC footprint. |
Compared with SMBJ36CA and 1.5SMC36CA, the P6SMB36CA delivers tighter VBR tolerance (±5.3%), lower clamping voltage (49.9 V), and smaller DO-214AA footprint-making it optimal for space-constrained 24–48 V automotive and consumer power designs requiring precise, low-leakage protection.
Availability
P6SMB36CA is available at Aetrix Electronics and suitable for automotive electronic control units, industrial switch-mode power supplies, and consumer display power rails requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB36CA 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 since 1979.
The P6SMB36CA belongs to TSC's P6SMB series of 600 W SMB-packaged TVS diodes engineered for cost-sensitive, high-volume automotive and industrial surge protection where ISO 7637-2 compliance and tight parametric control are mandatory.
FAQ
What is the maximum clamping voltage of the P6SMB36CA under standard test conditions?
The P6SMB36CA has a maximum clamping voltage (VC) of 49.9 V when subjected to a 10/1000 µs peak pulse current of 12.6 A. This value is measured at TA = 25°C and represents the highest voltage the device allows across its terminals during surge conduction, directly defining the protection level for downstream components. The P6SMB36CA maintains this clamping performance across its full operating temperature range.
Is the P6SMB36CA suitable for bidirectional transient suppression?
Yes, the P6SMB36CA is explicitly designed for bidirectional operation, as indicated by the "CA" suffix per TSC documentation. Its symmetrical avalanche junction provides identical breakdown and clamping characteristics in both forward and reverse directions, making it ideal for protecting AC-coupled signals or ungrounded DC buses where polarity reversal may occur. No external polarity marking is present on the DO-214AA package.
What is the standoff voltage (VWM) rating for the P6SMB36CA?
The P6SMB36CA has a maximum working peak reverse voltage (VWM) of 30.8 V. This is the highest continuous DC or RMS voltage that can be applied across the device without exceeding 1 µA leakage current. It is derived from the device's 36 V nominal breakdown rating and ensures reliable operation in 24 V and 30 V nominal systems while preserving sufficient margin before clamping initiates.
Does the P6SMB36CA meet automotive surge immunity standards?
Yes, the P6SMB36CA meets ISO 7637-2 requirements for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), as confirmed in TSC's official datasheet. Its 600 W peak pulse power rating, low clamping voltage, and specified response time make it suitable for front-end protection in automotive ECUs, body control modules, and infotainment power supplies.
What is the thermal resistance specification for the P6SMB36CA?
The P6SMB36CA has a junction-to-ambient thermal resistance (RθJA) of 55 °C/W and a junction-to-case thermal resistance (RθJC) of 10 °C/W, both measured under standard JEDEC conditions. These values inform PCB layout decisions-such as minimum copper pour area and via count-to maintain junction temperature below 150 °C during repeated surge events, especially in enclosed or high-ambient-temperature environments.
P6SMB36CA 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:
- -
- Bidirectional Channels:
- 1
- 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)
P6SMB36CA FAQ
1.How can I place an order for P6SMB36CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36CA 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 P6SMB36CA reliable?
The price and inventory of P6SMB36CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB36CA is usually 5 days.
3.What payment methods are accepted for P6SMB36CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36CA?
P6SMB36CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36CA 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 P6SMB36CA?
For technical support, including P6SMB36CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36CA requirements.
6.How does Aetrix verify that P6SMB36CA is sourced from the original manufacturer or authorized distributors?
All P6SMB36CA 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 P6SMB36CA meets industry standards.
7.What is the process for return or replacement of P6SMB36CA?
All P6SMB36CA units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36CA, 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 P6SMB36CA part is unused and in its original packaging.
Return procedure for P6SMB36CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB36CA Tags
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