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Semtech Corporation RCLAMP10012PQTCT
- Part No.:
- RCLAMP10012PQTCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 5-DFN
- Datasheet:
-
RCLAMP10012PQTCT.pdf
- Description:
- TVS DIODE 30VWM 5-DFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
RCLAMP10012PQTCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and ultra-low 20mΩ dynamic resistance. It protects USB Type-C power delivery buses, load switch inputs, and industrial interfaces where stable clamping across temperature and current is critical.
For engineers reviewing the RCLAMP10012PQTCT datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, real-world USB PD and load switch protection use cases, and validated alternative parts with documented functional trade-offs.
Technical Context
RCLAMP10012PQTCT implements a surge-rated FET shunt architecture activated by a precision trigger circuit - not a conventional pn-junction TVS diode - enabling near-constant clamping voltage over 24–40A pulse range and −40°C to +125°C operating temperature. Its 20mΩ dynamic resistance ensures minimal voltage rise under surge, unlike TVS devices whose clamping scales linearly with IPP × RDYN.
The device integrates three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3) in a monolithic DFN-6 package, requiring all six pins to be connected for full 40A rating. Its 175pF junction capacitance at 22V is optimized for power-line (not high-speed data-line) protection, distinguishing it from sub-0.25pF RClamp variants used on USB SS lanes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - supports USB PD bus operation up to 20V nominal with 2V margin before clamping activation. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - remains stable across temperature and current, limiting stress on downstream 24V-rated load switches or PD controllers. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD endpoints. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD requirements without derating. |
| Dynamic Resistance | 20mΩ - enables low-voltage-drop shunting, reducing thermal stress and improving reliability vs. TVS diodes with fixed RDYN >1Ω. |
| Junction Capacitance | 175pF at 22V, 1MHz - suitable for power/bus line protection; not intended for high-speed signal lines (e.g., USB SS, PCIe). |
| Package | DFN 1.6 × 1.6 × 0.55 mm, 6-lead - enables compact placement adjacent to connectors with minimal PCB area (<2.56 mm²). |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Low-inductance ground return path; all three must be connected to maximize surge current handling and minimize voltage overshoot. |
| Pins 4, 5, 6 | IN | Parallel-connected input terminals for protected bus (e.g., VBUS); all three required to achieve rated 40A peak pulse current capability. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Replaces traditional TVS diodes with active clamping - clamping voltage stays flat across 24–40A and −40°C to +125°C, eliminating thermal runaway risk. |
| Ultra-low dynamic resistance | 20mΩ measured between 1A and 40A pulses - minimizes IR drop during surge, preserving voltage margin for downstream 24V-rated ICs. |
| Triple-terminal input & ground | Three parallel IN pins (4–6) and three GND pins (1–3) reduce trace inductance and distribute current, enabling full 40A rating without hot-spotting. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - supports repeated exposure to ±1kV/42Ω surges per IEC 61000-4-5 without degradation. |
| Low leakage & stable capacitance | 600nA max reverse leakage at 22V; 175pF capacitance stable over −40°C to +125°C - ensures consistent protection behavior in wide-temperature environments. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting the VBUS line in USB Type-C ports supporting up to 20V/5A PD, exposed to ESD events and lightning-induced surges. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at the connector, clamping surges before they reach the PD controller or e-fuse. Use Value: Maintains 27.5–28V clamping across 40A and −40°C to +125°C, preventing damage to 24V-rated PD controllers that would fail above 30V. |
Use Scenario: Safeguarding the input of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation systems. IC Role / Device Role / Timing Role: Primary EOS protection element on the VIN rail, absorbing 8/20μs surges before internal FET gate oxide breakdown occurs. Use Value: Limits voltage seen by the load switch's input stage to ≤28V during 40A transients, extending lifetime and avoiding field failures in ungrounded installations. |
| IoT Device Power Rail Protection | Storage Device DC Power Interface |
Use Scenario: Securing 22V-rated power inputs on battery-backed IoT gateways and edge nodes deployed in electrically noisy environments. IC Role / Device Role / Timing Role: Standalone EOS protector on main DC input, coordinated with upstream fusing and downstream LDOs. Use Value: Delivers ±30kV ESD immunity and 40A surge handling in <2.56 mm² footprint - critical for space-constrained, thermally isolated enclosures. |
Use Scenario: Protecting SATA or NVMe storage module power inputs against hot-plug transients and board-level ESD during rack insertion. IC Role / Device Role / Timing Role: Front-end transient suppressor on +12V or +19V supply rails feeding SSD controllers and PMICs. Use Value: Stable 27.5–28V clamping prevents latch-up or overvoltage shutdown in storage controllers rated for 30V absolute maximum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P.C | Identical electrical specs, same DFN-6 package, identical pinout and marking code T22 - direct Semtech-recommended replacement with same production lot traceability. | No functional difference; used interchangeably in USB PD and industrial designs per Semtech documentation. | Select when sourcing from Semtech-authorized channels with full compliance documentation and long-term availability assurance. |
| SMAJ22A | Standard unidirectional TVS diode; 22V standoff, 35.5V clamping at 15.5A (8/20μs), 1.5Ω dynamic resistance - higher clamping, lower current rating, no temperature stability. | Suitable only for lower-energy surges; cannot maintain safe clamping for 40A events or elevated ambient temperatures. | Choose only for cost-sensitive, non-critical 22V lines where 35.5V clamping is acceptable and peak currents remain <15A. |
Compared with RCLAMP10012PQTCT, TDS2211P.C offers identical performance and supply-chain continuity, while SMAJ22A trades clamping stability and surge capacity for lower unit cost - making it viable only in thermally benign, low-peak-current applications.
Availability
RCLAMP10012PQTCT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch protection, and IoT device power rail hardening requiring stable component supply and guaranteed long-term manufacturability.
Supply support for RCLAMP10012PQTCT 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
Semtech Corporation is a U.S.-based fabless semiconductor company specializing in high-performance analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
RCLAMP10012PQTCT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power-line protection applications demanding flat clamping and wide-temperature stability.
FAQ
What is the primary circuit role of RCLAMP10012PQTCT in a USB Type-C design?
RCLAMP10012PQTCT serves as the front-end transient diverting suppressor on the VBUS line, clamping ESD and surge events to ≤28V before they reach the USB PD controller or e-fuse. Its FET-based architecture ensures this clamping voltage remains stable across 40A pulses and −40°C to +125°C, unlike TVS diodes whose clamping rises with current and temperature. RCLAMP10012PQTCT is explicitly recommended by Semtech for USB Type-C PD bus protection in its application diagrams.
Does RCLAMP10012PQTCT require external components to function?
No, RCLAMP10012PQTCT is a fully self-contained transient suppressor requiring no external resistors, capacitors, or bias networks. Its integrated trigger circuit and shunt FET operate autonomously upon detecting overvoltage. However, optimal PCB layout - including short, wide traces connecting all three IN pins (4–6) and all three GND pins (1–3) with multiple vias to ground - is essential to achieve the rated 40A performance. RCLAMP10012PQTCT functions correctly as a standalone device when placed within 2 mm of the protected connector.
How does RCLAMP10012PQTCT differ from standard TVS diodes like SMAJ22A?
RCLAMP10012PQTCT uses an active FET shunt architecture with a precision trigger circuit, delivering flat 27.5–28V clamping across 24–40A and −40°C to +125°C. In contrast, SMAJ22A is a passive pn-junction TVS diode with 35.5V clamping at 15.5A and rising clamping voltage at higher currents or temperatures. RCLAMP10012PQTCT's 20mΩ dynamic resistance versus SMAJ22A's ~1.5Ω enables superior energy handling and thermal stability. RCLAMP10012PQTCT is not a drop-in replacement but a higher-performance upgrade for critical 22V lines.
Can RCLAMP10012PQTCT be used on high-speed data lines such as USB SuperSpeed or PCIe?
No, RCLAMP10012PQTCT is not suitable for high-speed data lines. Its 175pF junction capacitance at 22V is optimized for power/bus line protection, not signal integrity. For USB SuperSpeed (TX/RX), DP/DM, or PCIe lanes, Semtech specifies low-capacitance devices like RClamp3371ZC (<0.25pF). Using RCLAMP10012PQTCT on data lines would cause severe signal attenuation and jitter. RCLAMP10012PQTCT is strictly intended for 22V power rails and robust I/O lines where capacitance is not a constraint.
What is the significance of the triple-pin configuration (pins 4–6 and 1–3) on RCLAMP10012PQTCT?
The triple-input (pins 4–6) and triple-ground (pins 1–3) configuration reduces parasitic inductance and distributes surge current across multiple bond wires and package leads, enabling the full 40A (8/20μs) rating. Connecting fewer than all three IN or GND pins degrades peak current capability and increases clamping voltage due to added inductance. This design is validated in Semtech's layout guidelines and functional diagrams - RCLAMP10012PQTCT must be used with all six pins soldered to achieve its published specifications.
RCLAMP10012PQTCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 5-DFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 25V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- Ethernet
- Capacitance @ Frequency:
- 1.4pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-DFN (2x1)
RCLAMP10012PQTCT FAQ
1.How can I place an order for RCLAMP10012PQTCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP10012PQTCT 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 RCLAMP10012PQTCT reliable?
The price and inventory of RCLAMP10012PQTCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP10012PQTCT is usually 5 days.
3.What payment methods are accepted for RCLAMP10012PQTCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP10012PQTCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP10012PQTCT?
RCLAMP10012PQTCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP10012PQTCT 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 RCLAMP10012PQTCT?
For technical support, including RCLAMP10012PQTCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP10012PQTCT requirements.
6.How does Aetrix verify that RCLAMP10012PQTCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP10012PQTCT 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 RCLAMP10012PQTCT meets industry standards.
7.What is the process for return or replacement of RCLAMP10012PQTCT?
All RCLAMP10012PQTCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP10012PQTCT, 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 RCLAMP10012PQTCT part is unused and in its original packaging.
Return procedure for RCLAMP10012PQTCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP10012PQTCT Tags
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Diodes Incorporated
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