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Taiwan Semiconductor Corporation P6SMB11CA
- Part No.:
- P6SMB11CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB11CA.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,485
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Product details
Overview
P6SMB11CA from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a standoff voltage of 9.4 V, breakdown voltage range of 10.5–11.6 V at 1 mA, and clamping voltage of 15.6 V at 40 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 Pulse 1/2a/2b/3a/3b.
For engineers reviewing the P6SMB11CA datasheet, P6SMB11CA pinout, P6SMB11CA application, or P6SMB11CA equivalent, key selection criteria include bidirectional clamping capability, DO-214AA (SMB) package compatibility, 150°C junction rating, sub-1 μA leakage at 9.4 V, and verified compliance with automotive transient immunity standards.
Technical Context
The P6SMB11CA operates as a bidirectional avalanche diode, symmetrically clamping transients in both polarities without requiring external polarity management. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 μA at VWM), while its 10/1000 μs waveform-rated 600 W peak pulse power supports robust protection in harsh electrical environments.
Thermally, it features a junction-to-case resistance of 10°C/W and junction-to-ambient resistance of 55°C/W, enabling reliable operation up to 150°C junction temperature. The device meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1, supporting lead-free reflow assembly without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.4 V - Maximum continuous reverse operating voltage before clamping begins; sets safe DC rail margin for 12 V systems. |
| VBR min/max | 10.5 V / 11.6 V at IT = 1 mA - Confirmed avalanche breakdown window; ensures predictable turn-on across production lot. |
| VC @ IPPM | 15.6 V at 40 A - Clamped voltage during 10/1000 μs surge; limits downstream IC stress in 12 V supply lines. |
| PPPSM | 600 W - Peak pulse power handling per single transient; supports repeated surges when thermally managed. |
| IR @ VWM | <1 μA - Ultra-low reverse leakage; avoids unnecessary standby current drain in battery-backed or energy-sensitive designs. |
| TJ max | +150 °C - Maximum junction temperature; enables use in high-ambient industrial or under-hood automotive locations. |
| Package | DO-214AA (SMB) - Standardized surface-mount outline with 0.090 g mass; compatible with automated pick-and-place and reflow. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band (bidirectional function renders band non-polar; used only for mechanical orientation reference).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | No functional polarity - terminals interchangeable; clamps positive and negative transients equally across both directions. |
| Cathode band marking | Manufacturing orientation indicator | Non-functional for electrical behavior; aids visual alignment during placement but does not define anode/cathode in CA devices. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating rails without polarity awareness or additional components. |
| ISO 7637-2 compliance | Validated performance against automotive-level load dump and inductive switch-off transients (Pulse 1/2a/2b/3a/3b). |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage over temperature and lifetime, critical for field-reliability applications. |
| Moisture Sensitivity Level 1 | Eliminates bake requirements prior to SMT assembly, reducing process cost and avoiding thermal stress on PCB assemblies. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS directives, supporting environmentally regulated industrial and consumer product certifications. |
Applications
| Switching Mode Power Supply (SMPS) | AC-DC Adapter |
|---|---|
Use Scenario: Input rectifier stage and secondary-side DC bus in offline SMPS units exposed to line surges and cross-talk. IC Role / Device Role: Primary transient suppression element placed across bulk capacitor or post-rectifier output. Use Value: Limits voltage overshoot to ≤15.6 V during 40 A 10/1000 μs transients, protecting PWM controllers and MOSFETs rated for 20 V maximum VDS. | Use Scenario: Secondary-side 12 V output rail in universal-input wall adapters subject to ESD and fast transient bursts. IC Role / Device Role: Bidirectional TVS placed between VOUT and GND to clamp both positive and negative excursions. Use Value: Sub-1 μA leakage preserves no-load efficiency; DO-214AA footprint allows compact layout adjacent to USB-PD or legacy 5–12 V output connectors. |
| Television Power Board | Monitor Backlight Inverter |
Use Scenario: Standby 5 V and main 12/24 V rails in TV power boards subjected to hot-plug and relay bounce transients. IC Role / Device Role: Secondary protection after primary MOV, absorbing residual energy that passes through upstream filtering. Use Value: 600 W peak rating handles repetitive 10/1000 μs pulses from internal switching noise; 150°C rating sustains reliability in enclosed, thermally constrained enclosures. | Use Scenario: High-voltage boost output (≈600 V) and logic supply rails in CCFL or early LED backlight inverters. IC Role / Device Role: Local clamping on low-voltage control IC supply (e.g., 12 V bias rail) to prevent latch-up from transformer-coupled spikes. Use Value: 9.4 V VWM provides 20% margin above nominal 12 V rail while ensuring fast response (<1 ps) to nanosecond-scale coupling events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA (ON Semiconductor) | Identical DO-214AA package, same VWM/VBR/VC specs, but higher typical IR (≤5 μA vs. ≤1 μA at VWM). | Suitable where ultra-low leakage is non-critical; may require verification in battery-leakage-sensitive designs. | Select SMBJ11CA if sourcing flexibility is prioritized and leakage budget allows +4 μA increase. |
| 1.5SMC11CA (Littelfuse) | Same electrical ratings but larger DO-214AB (SMC) package (2.5 mm height vs. SMB's 2.2 mm); 1.5 kW peak rating (derated to 600 W at TA = 25°C). | Requires PCB pad revision; better thermal dissipation in sustained surge scenarios but occupies more board area. | Choose 1.5SMC11CA only when thermal headroom is insufficient with SMB footprint or when legacy SMC layout exists. |
Compared with SMBJ11CA and 1.5SMC11CA, the P6SMB11CA delivers identical clamping performance in the smallest standardized SMB footprint with the lowest confirmed leakage, making it optimal for space-constrained, low-quiescent-current, and automotive-compliant designs.
Availability
P6SMB11CA 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 transient immunity, and RoHS-compliant manufacturing.
Supply support for P6SMB11CA 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 applications.
The P6SMB series belongs to TSC's high-reliability surface-mount TVS portfolio, engineered specifically for ISO 7637-2-compliant automotive and industrial power rail protection with emphasis on low leakage, tight VBR tolerance, and MSL-1 assembly readiness.
FAQ
What is the maximum clamping voltage of the P6SMB11CA under standard test conditions?
The P6SMB11CA has a maximum clamping voltage (VC) of 15.6 V when subjected to a 10/1000 μs waveform peak pulse current (IPPM) of 40 A at TA = 25°C. This value is guaranteed across production lots and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB11CA maintains this clamping performance while exhibiting <1 μA leakage at its 9.4 V standoff voltage.
Is the P6SMB11CA suitable for automotive applications?
Yes, the P6SMB11CA is explicitly validated to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient immunity requirements, making it suitable for 12 V automotive power networks including infotainment, body control, and ADAS subsystems. Its DO-214AA package, MSL-1 rating, and 150°C maximum junction temperature further support under-hood and module-integrated deployment. The P6SMB11CA is not rated for safety-critical airbag or braking functions.
How does the "CA" suffix in P6SMB11CA affect its functionality?
The "CA" suffix denotes a bidirectional configuration: the P6SMB11CA conducts and clamps symmetrically for both positive- and negative-polarity transients, eliminating the need for polarity-aware placement or dual-device solutions. Unlike unidirectional "A" variants (e.g., P6SMB11A), the P6SMB11CA has no functional anode/cathode distinction - the cathode band serves only as a mechanical orientation marker. This makes the P6SMB11CA ideal for AC-coupled, floating, or reversal-prone signal/power paths.
What is the thermal resistance profile of the P6SMB11CA?
The P6SMB11CA exhibits a junction-to-case thermal resistance (RθJC) of 10°C/W and a junction-to-ambient resistance (RθJA) of 55°C/W under standard JEDEC test conditions. These values enable effective heat dissipation during transient events, supporting continuous operation up to 150°C junction temperature. PCB copper area and airflow directly influence actual RθJA; the P6SMB11CA's low RθJC allows efficient heat transfer to heatsink pads or thermal vias when implemented.
Does the P6SMB11CA require special handling or baking before reflow soldering?
No, the P6SMB11CA is rated Moisture Sensitivity Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into standard lead-free reflow profiles without pre-bake. This eliminates moisture-related popcorning risk and reduces manufacturing overhead. The P6SMB11CA's glass-passivated chip junction and matte tin-plated leads also ensure robust solderability per J-STD-002, supporting high-yield automated assembly without flux optimization.
P6SMB11CA 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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 40A
- 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)
P6SMB11CA FAQ
1.How can I place an order for P6SMB11CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB11CA 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 P6SMB11CA reliable?
The price and inventory of P6SMB11CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB11CA is usually 5 days.
3.What payment methods are accepted for P6SMB11CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB11CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB11CA?
P6SMB11CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB11CA 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 P6SMB11CA?
For technical support, including P6SMB11CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB11CA requirements.
6.How does Aetrix verify that P6SMB11CA is sourced from the original manufacturer or authorized distributors?
All P6SMB11CA 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 P6SMB11CA meets industry standards.
7.What is the process for return or replacement of P6SMB11CA?
All P6SMB11CA units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB11CA, 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 P6SMB11CA part is unused and in its original packaging.
Return procedure for P6SMB11CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB11CA Tags
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