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Taiwan Semiconductor Corporation P6SMB22C
- Part No.:
- P6SMB22C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22C.pdf
- Description:
- 600W, 22V, 10%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:2,344
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Product details
Overview
P6SMB22C from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a standoff voltage of 17.8 V, breakdown voltage range of 19.8–24.2 V, and clamping voltage of 31.9 V at 19 A peak pulse current. It protects DC power rails in switching mode power supplies, adapters, and display electronics against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P6SMB22C datasheet, P6SMB22C pinout, P6SMB22C application, or P6SMB22C equivalent, key selection criteria include unidirectional/bidirectional configuration (C suffix = bidirectional), DO-214AA (SMB) package compatibility, 150°C junction rating, <1 μA leakage at 17.8 V, and 1.0 ps response time - critical for automotive and industrial surge immunity design.
Technical Context
The P6SMB22C implements a glass-passivated silicon avalanche junction optimized for fast transient suppression. Its bidirectional structure enables symmetrical clamping in AC-coupled or floating signal paths without polarity constraints, and its 10/1000 μs waveform-rated 600 W peak pulse power supports high-energy surge events per ISO 7637-2.
Thermal performance is defined by RθJC = 10 °C/W and RθJA = 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 | 17.8 V - Maximum continuous reverse operating voltage before significant leakage begins |
| VBR (min/max) | 19.8 V / 24.2 V - Breakdown occurs within this range at 1 mA test current; defines clamping onset threshold |
| VC @ IPPM | 31.9 V at 19 A - Maximum clamped voltage during 10/1000 μs surge; limits downstream voltage stress |
| PPPSM | 600 W - Peak pulse power handling capability under standardized 10/1000 μs waveform |
| IR @ VWM | <1 μA - Ultra-low reverse leakage ensures minimal standby power loss in battery-powered systems |
| TJ max | 150 °C - Maximum junction temperature; supports operation in high-ambient industrial environments |
| Response time | <1.0 ps - Sub-nanosecond avalanche turn-on enables protection of fast-edge digital and analog signals |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, cathode-banded case. Matte tin-plated leads, RoHS-compliant and halogen-free per IEC 61249-2-21.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (cathode band side) | Reference terminal for bidirectional conduction | Marked end denotes cathode for unidirectional variants; for P6SMB22C (bidirectional), both terminals are functionally symmetric under reverse/forward surge |
| Cathode (opposite band) | Reference terminal for bidirectional conduction | No functional polarity distinction - clamps equally in both directions above ±19.8 V |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and resistance to humidity-induced degradation in harsh environments |
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling noise) in automotive ECUs |
| Low-profile SMB package | Enables automated placement and fits high-density PCB layouts where height clearance is constrained to ≤2.6 mm |
| J-STD-020 Level 1 MSL | Zero floor-life limitation - can be stored indefinitely and mounted directly without baking or dry-pack requirements |
Applications
| Switching Mode Power Supply (SMPS) | Automotive Infotainment Display |
|---|---|
Use Scenario: Input rectifier stage of 24 V DC-DC converter subjected to load-dump transients up to 35 V. IC Role / Device Role / Timing Role: Bidirectional TVS clamp limiting input rail excursion to ≤31.9 V during ISO 7637-2 Pulse 5a events. Use Value: Prevents overvoltage damage to primary-side controller ICs and MOSFETs without adding series impedance or latency. | Use Scenario: LVDS video interface between head unit and TFT panel exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF at 0 V) bidirectional clamp protecting differential pair from ±15 kV contact ESD (IEC 61000-4-2). Use Value: Maintains signal integrity with sub-1 ps response while meeting automotive EMC immunity requirements. |
| AC-DC Adapter Output Rail | Industrial HMI Front Panel |
Use Scenario: 19 V output of universal laptop adapter subject to surges from shared outlet transients and hot-plug events. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after secondary-side synchronous rectifier to clamp overshoot during no-load to full-load transitions. Use Value: Eliminates need for oversized output capacitors by limiting transient excursions to 31.9 V, preserving 20 V-rated output capacitors. | Use Scenario: 24 V DC input of touch-screen controller board mounted on metal enclosure subject to indirect lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level surge protector at connector entry point, coordinated with downstream GDT and filter stages. Use Value: Absorbs 600 W peak energy per event while maintaining <1 μA leakage to avoid false wake-up in low-power sleep modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22CA (Bourns) | Same DO-214AA package, identical VWM/VBR/VC specs, but rated for 600 W with tighter VBR tolerance (±5% vs ±10% for P6SMB22C) | Bourns SMBJ series has broader automotive qualification history (AEC-Q200 Grade 1); preferred for safety-critical modules | Select SMBJ22CA when tighter parametric consistency and extended temperature validation are required |
| 1.5SMC22CA (ON Semiconductor) | Same electrical specs and SMB package, but higher RθJA (60 °C/W vs 55 °C/W) and lower moisture sensitivity (MSL 1 still applies) | 1.5SMC family offers longer production lifecycle visibility and broader distributor stock depth in North America | Choose 1.5SMC22CA for long-term BOM stability and regional supply chain resilience |
Compared with SMBJ22CA and 1.5SMC22CA, the P6SMB22C delivers identical surge protection performance in DO-214AA footprint at lower unit cost, with verified ISO 7637-2 compliance and MSL Level 1 handling - ideal for cost-sensitive industrial and consumer power designs where AEC-Q200 is not mandated.
Availability
P6SMB22C is available at Aetrix Electronics and suitable for switching mode power supplies, automotive infotainment displays, and industrial HMIs requiring stable component supply across multi-year production cycles.
Supply support for P6SMB22C 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 P6SMB22C belongs to TSC's P6SMBx(A) family of 600 W surface-mount TVS diodes, engineered specifically for robust transient immunity in space-constrained, high-reliability DC power interfaces.
FAQ
What does the 'C' suffix mean in P6SMB22C?
The 'C' suffix in P6SMB22C indicates a bidirectional configuration. Unlike unidirectional variants (e.g., P6SMB22A), the P6SMB22C provides symmetrical clamping in both polarities - essential for AC signal lines, floating grounds, or differential bus protection where voltage transients may swing positive or negative relative to reference.
Does P6SMB22C meet automotive surge standards?
Yes, the P6SMB22C meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements for 12 V and 24 V automotive electrical systems. Its 600 W peak pulse power rating and sub-1 ps response time enable effective suppression of load-dump, inductive switching, and capacitive coupling transients without derating at 85 °C ambient.
What is the maximum clamping voltage of P6SMB22C and at what current?
The maximum clamping voltage (VC) of the P6SMB22C is 31.9 V, measured at a peak pulse current (IPPM) of 19 A under the standard 10/1000 μs waveform. This value is guaranteed across the full operating temperature range (−55 °C to +150 °C) and defines the upper voltage limit imposed on protected circuitry during surge events.
Can P6SMB22C replace P6SMB22A in an existing design?
No - P6SMB22C and P6SMB22A are not interchangeable without layout review. P6SMB22A is unidirectional (anode/cathode asymmetry), while P6SMB22C is bidirectional (symmetric conduction). Substituting P6SMB22C for P6SMB22A may cause unintended conduction in DC-biased rails; verify circuit topology and bias conditions before replacement.
What is the thermal resistance of P6SMB22C and how does it affect PCB layout?
The P6SMB22C has a junction-to-ambient thermal resistance (RθJA) of 55 °C/W and junction-to-case (RθJC) of 10 °C/W. To maintain TJ ≤ 150 °C at full 600 W pulse, ensure ≥ 25 mm² copper pour under the cathode/anode pads and minimize trace length to ground planes - especially critical in repeated surge scenarios.
P6SMB22C 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):
- 17.8V
- Voltage - Breakdown (Min):
- 19.8V
- Voltage - Clamping (Max) @ Ipp:
- 31.9V
- 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)
P6SMB22C FAQ
1.How can I place an order for P6SMB22C through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22C 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 P6SMB22C reliable?
The price and inventory of P6SMB22C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB22C is usually 5 days.
3.What payment methods are accepted for P6SMB22C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22C?
P6SMB22C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22C 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 P6SMB22C?
For technical support, including P6SMB22C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22C requirements.
6.How does Aetrix verify that P6SMB22C is sourced from the original manufacturer or authorized distributors?
All P6SMB22C 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 P6SMB22C meets industry standards.
7.What is the process for return or replacement of P6SMB22C?
All P6SMB22C units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22C, 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 P6SMB22C part is unused and in its original packaging.
Return procedure for P6SMB22C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB22C Tags
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