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Semtech Corporation RCLAMP0544M.TBT
- Part No.:
- RCLAMP0544M.TBT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
RCLAMP0544M.TBT.pdf
- Description:
- TVS DIODE 5VWM 20VC 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:8,023
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Product details
Overview
RCLAMP0544M.TBT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or data lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, 175pF junction capacitance, and DFN 1.6×1.6×0.55mm 6-lead package - deployed in USB Type-C PD input protection.
For engineers reviewing the RCLAMP0544M.TBT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature and current, low dynamic resistance (20mΩ), minimal leakage (<600nA at 22V), and compatibility with industrial surge standards (±1kV, 1.2/50μs + 8/20μs).
Technical Context
RCLAMP0544M.TBT uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant (27.5–28V) from 24A to 40A due to decreasing RDS(on) under surge conditions.
The device operates over –40°C to +125°C, maintains stable clamping across temperature (±0.5V variation), and achieves <20mΩ dynamic resistance measured between 1A and 40A (8/20μs). Its 175pF capacitance at 22V/1MHz supports high-speed bus protection without signal integrity degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage on protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo waveform) - ensures downstream ICs (e.g., USB PD controllers) remain below damage threshold during surge events. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge requirements for 22V systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD immunity requirements for external connectors. |
| Junction Capacitance | 175pF at 22V/1MHz - low enough to avoid signal distortion on 22V power rails or slow-speed control lines. |
| Dynamic Resistance | 20mΩ - enables near-constant clamping by minimizing IR drop increase under rising surge current. |
| Reverse Leakage | ≤600nA at 22V - negligible power loss and thermal impact in always-on 22V supply monitoring applications. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, Pb-free, RoHS-compliant, UL 94V-0 molding compound. Exposed pad not present; thermal dissipation occurs through copper traces and vias to internal ground planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for surge current; all three pins must be connected to maximize current sharing and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS in USB PD); parallel connection of all three pins ensures uniform current distribution and full 40A rating. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Replaces traditional TVS diodes with active shunt switching, delivering flat clamping vs. current and temperature - critical for 22V PD bus reliability. |
| Constant clamping architecture | 27.5–28V clamping across 24–40A and –40°C to +125°C - eliminates derating concerns in thermally constrained industrial enclosures. |
| High-energy surge handling | 1120W peak pulse power (8/20μs) - sustains repeated lightning-induced transients without parametric shift or failure. |
| Low dynamic resistance | 20mΩ - reduces voltage overshoot during fast-rising surges (e.g., EFT bursts), improving protection margin for sensitive load switches. |
| Compact DFN footprint | 1.6×1.6mm area - saves >60% board space versus SO-8 or SOT-23 alternatives while maintaining full 40A capability. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20–22V VBUS lines in USB-C receptacles exposed to ESD, lightning surges, and hot-plug transients. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at connector, clamping transients before they reach PD controller or e-fuse. Use Value: Maintains 27.5–28V clamping at full 40A even at 125°C - prevents false overvoltage shutdown and ensures PD negotiation continuity. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote meters and robotics. IC Role / Device Role / Timing Role: Front-end surge limiter that limits voltage stress on the switch's internal FET gate oxide and drain-source junction. Use Value: Enables use of cost-optimized load switches rated only to 30V by holding clamped voltage safely below their absolute max ratings. |
| IoT Device Power Rail Protection | Storage Device 22V Bus Protection |
|
Use Scenario: Securing 22V auxiliary power inputs in battery-backed IoT gateways subjected to field ESD and induced surges. IC Role / Device Role / Timing Role: Standalone transient suppressor on main DC input rail, coordinated with upstream fuse and downstream LDO. Use Value: 175pF capacitance avoids destabilizing wide-input LDOs; low leakage preserves battery life during long sleep cycles. |
Use Scenario: Protecting 22V backup power supplies in enterprise SSDs and NAS enclosures against AC-line coupled surges. IC Role / Device Role / Timing Role: High-reliability clamping device placed at power entry point, preceding bulk capacitors and PMICs. Use Value: 40A rating handles worst-case IEC 61000-4-5 coupling into chassis-grounded enclosures; RoHS/UL 94V-0 compliance meets storage safety standards. |
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 | Same die, identical electrical specs, same DFN 1.6×1.6mm package; differs only in tape-and-reel packaging (3,000 pcs/reel vs. RCLAMP0544M.TBT's unspecified reel count). | Functionally interchangeable in all PCB layouts and protection circuits; no design change required. | Select TDS2211P.C when volume procurement or standard Semtech reel logistics are prioritized. |
| uClamp2411ZA | 24V working voltage, lower 24A peak pulse rating, higher 32V clamping at 24A, and smaller 1.0×0.6mm 2-pin SOD-523 package. | Suitable for CC/SBU lines in USB-C, not for 22V VBUS - insufficient surge rating and clamping margin for power rail use. | Choose uClamp2411ZA only for auxiliary signal-line protection where space is critical and energy levels are lower. |
Compared with TDS2211P.C, RCLAMP0544M.TBT offers identical protection performance but may differ in traceability or lot-level documentation; compared with uClamp2411ZA, RCLAMP0544M.TBT provides 67% higher surge current capacity and 5V lower clamping - essential for 22V power rail integrity.
Availability
RCLAMP0544M.TBT is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and 22V IoT power rail protection requiring stable component supply, consistent surge performance, and long-term lifecycle support.
Supply support for RCLAMP0544M.TBT 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.
RCLAMP0544M.TBT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-voltage, high-energy EOS protection applications where clamping stability and temperature independence are critical.
FAQ
What is the maximum continuous operating voltage for RCLAMP0544M.TBT?
RCLAMP0544M.TBT has a reverse stand-off voltage (VRWM) of 22V, meaning it can reliably block up to 22V DC or RMS AC continuously without significant leakage or conduction. This makes RCLAMP0544M.TBT ideal for protecting 20–22V power rails such as USB PD VBUS, where exceeding this voltage triggers clamping action.
How does RCLAMP0544M.TBT achieve stable clamping voltage across temperature?
RCLAMP0544M.TBT uses a surge-rated FET and precision trigger circuit instead of a pn-junction diode. As surge current increases, the FET's RDS(on) decreases, counteracting IR rise - resulting in clamping voltage variation of less than ±0.5V from –40°C to +125°C. This behavior is confirmed in the RCLAMP0544M.TBT datasheet's clamping vs. temperature curves.
Can RCLAMP0544M.TBT replace standard TVS diodes in 22V applications?
Yes - RCLAMP0544M.TBT is specifically designed as a superior alternative to conventional TVS diodes in 22V systems. Unlike TVS devices whose clamping rises linearly with current and temperature, RCLAMP0544M.TBT maintains 27.5–28V clamping across 24–40A and full temperature range, offering tighter protection margins for sensitive PD controllers and load switches.
What is the recommended PCB layout for optimal performance of RCLAMP0544M.TBT?
Place RCLAMP0544M.TBT as close as possible to the protected connector. Connect all three IN pins (4,5,6) via a single short, wide trace to the protected line, and tie all three GND pins (1,2,3) directly to a solid ground plane using multiple vias. Avoid stubs or splits - this minimizes inductance and ensures full 40A surge current sharing across pins in RCLAMP0544M.TBT.
Is RCLAMP0544M.TBT compliant with industry surge and ESD standards?
Yes - RCLAMP0544M.TBT meets IEC 61000-4-2 (±30kV contact/air), IEC 61000-4-4 (±4kV EFT), and IEC 61000-4-5 (40A, 8/20μs; ±1kV, 1.2/50μs + 8/20μs combo wave). These certifications are validated in the official RCLAMP0544M.TBT datasheet and make it suitable for industrial, computing, and USB-C infrastructure designs.
RCLAMP0544M.TBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 20V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 125W
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.7pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
RCLAMP0544M.TBT FAQ
1.How can I place an order for RCLAMP0544M.TBT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0544M.TBT 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 RCLAMP0544M.TBT reliable?
The price and inventory of RCLAMP0544M.TBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0544M.TBT is usually 5 days.
3.What payment methods are accepted for RCLAMP0544M.TBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0544M.TBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0544M.TBT?
RCLAMP0544M.TBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0544M.TBT 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 RCLAMP0544M.TBT?
For technical support, including RCLAMP0544M.TBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0544M.TBT requirements.
6.How does Aetrix verify that RCLAMP0544M.TBT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0544M.TBT 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 RCLAMP0544M.TBT meets industry standards.
7.What is the process for return or replacement of RCLAMP0544M.TBT?
All RCLAMP0544M.TBT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0544M.TBT, 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 RCLAMP0544M.TBT part is unused and in its original packaging.
Return procedure for RCLAMP0544M.TBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP0544M.TBT Tags
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