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Semtech Corporation RCLAMP0544P.N
- Part No.:
- RCLAMP0544P.N
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 10-UFDFN
- Datasheet:
-
RCLAMP0544P.N.pdf
- Description:
- 4-LINE 5V 0.16PF TYP. 5A SMF2510
- Quantity:
- Payment:
- Shipping:
Inventory:4,170
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Product details
Overview
RCLAMP0544P.N from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and stable 27.5–28V clamping across temperature and current range - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the RCLAMP0544P.N datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, real-world clamping behavior vs. conventional TVS, and validated alternatives for 22V bus protection in USB PD, IoT, and industrial equipment designs.
Technical Context
RCLAMP0544P.N 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 standard 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 with <20mΩ dynamic resistance, 175pF junction capacitance at 22V/1MHz, and reverse leakage ≤600nA at VRWM = 22V - enabling robust protection without thermal derating penalties seen in junction-based TVS devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal USB PD bus and industrial 24V rail systems without derating. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo wave) - stays below 29V across full temp and current range, protecting 30V-tolerant controllers. |
| ESD Rating | ±30kV contact & air per IEC 61000-4-2 - exceeds Level 4 requirements for handheld and portable electronics interfaces. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 3 surge immunity for industrial equipment inputs. |
| Junction Capacitance | 175pF at 22V/1MHz - low enough for DC power rails and medium-speed control lines; not suitable for >100MHz signal paths. |
| Dynamic Resistance | 20mΩ - enables flat clamping curve and minimizes voltage overshoot during fast-rising transients. |
| Package | DFN 1.6mm × 1.6mm × 0.55mm, 6-lead - saves >50% board area vs. SO-8 TVS solutions while supporting high-current PCB routing. |
Pinout & Package
Package: DFN-6 (1.6mm × 1.6mm × 0.55mm), RoHS-compliant, Pb-free, UL 94V-0 molding compound. Thermal pad not required - energy dissipated in silicon FET structure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for all surge current paths; must be connected with low-inductance vias to internal ground plane. |
| 4, 5, 6 | IN | Parallel-connected input terminals for protected line (e.g., VBUS); all three pins must be routed together to maximize 40A capability. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Eliminates voltage rise with increasing IPP - clamping stays fixed at ~27.6V from 24A to 40A, unlike TVS diodes whose VC = VBR + IPP×RDYN. |
| Stable clamping over temperature | Clamping voltage varies <0.5V from –40°C to +125°C - avoids design margin inflation needed for conventional TVS with +0.1V/°C drift. |
| Low dynamic resistance | 20mΩ measured between 1A–40A (8/20μs) - reduces overshoot during sub-100ns ESD events and improves system-level immunity margin. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - supports repeated surges in industrial environments without parameter shift or degradation. |
| Integrated trigger circuit | Activates shunt FET precisely at VBR ≈27.9V - ensures no false triggering during normal 22V bus operation or ripple. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Front-End Protection |
|---|---|
|
Use Scenario: Protecting VBUS lines in USB-C receptacles handling up to 20V/5A PD negotiation, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed directly at connector, clamping transients before reaching PD controller ICs (e.g., TUSB73x, STUSB4500). Use Value: Maintains 27.6V clamping at 40A and 125°C - prevents damage to 30V-rated PD controllers where conventional TVS would exceed 38V at same conditions. |
Use Scenario: Safeguarding enable and input pins of industrial-grade load switches (e.g., HS2950P, TPS229xx) in remote meters and robotics. IC Role / Device Role / Timing Role: High-current transient diverter placed between connector and load switch VIN/EN pins, limiting voltage stress during surge events. Use Value: Keeps clamping voltage below 29V across full operating temperature - protects internal FET gate oxide and OVP comparators without requiring external crowbar circuits. |
| IoT Device DC Power Rail Protection | Storage Device 24V Backup Supply Protection |
|
Use Scenario: Securing 22V auxiliary power inputs in battery-backed smart sensors and edge gateways subject to field ESD and induced surges. IC Role / Device Role / Timing Role: Single-component, low-capacitance (<200pF) protector for always-on DC rails feeding PMICs and microcontrollers. Use Value: Delivers 40A surge handling in 1.6mm² footprint - eliminates need for parallel TVS arrays and associated layout complexity or parasitic inductance issues. |
Use Scenario: Protecting 24V backup supply lines in NVMe SSD enclosures and enterprise storage controllers against hot-swap transients and ESD. IC Role / Device Role / Timing Role: Standalone EOS suppressor on VCC_BKUP rail, coordinated with low-capacitance RClamp3371ZC on data lanes. Use Value: Provides consistent 27.5V clamping independent of ambient temperature - ensures reliable backup power integrity during extended operation in server chassis (>70°C ambient). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V VC @ 12.3A (8/20μs); higher clamping, no temperature stability. | Higher clamping voltage increases risk of downstream IC damage at elevated temperatures; requires larger layout area. | Select only if cost sensitivity outweighs clamping performance and thermal margin requirements. |
| TDS2211P | Same FET-based TDS architecture, identical 22V working voltage and 40A rating; differs only in marking code and reel packaging (TDS2211P.C vs. RCLAMP0544P.N). | No functional difference - both are Semtech's production variants of the same die and package; RCLAMP0544P.N is the commercial-grade marking. | Direct functional match; RCLAMP0544P.N and TDS2211P share identical electrical specs, pinout, and thermal behavior. |
Compared with SMAJ22A, RCLAMP0544P.N delivers 8V lower clamping at full surge current and stable performance across –40°C to +125°C, while TDS2211P is a functionally identical variant differing only in part marking and tape/reel configuration - making it a seamless drop-in alternative.
Availability
RCLAMP0544P.N is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and IoT 22V power rail protection requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for RCLAMP0544P.N 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.
RCLAMP0544P.N belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power and interface protection applications where stable clamping and thermal resilience are critical.
FAQ
What is the maximum continuous operating voltage for RCLAMP0544P.N?
RCLAMP0544P.N has a reverse stand-off voltage (VRWM) of 22V - meaning it can continuously block up to 22V DC or RMS without conduction. This matches USB PD 20V nominal and industrial 24V systems with appropriate safety margin. Exceeding 22V risks premature triggering or leakage increase. The device is rated for 22V working voltage per IEC 61000-4-5 and Semtech's published absolute maximum ratings.
How does RCLAMP0544P.N differ from standard TVS diodes in clamping behavior?
RCLAMP0544P.N uses a triggered FET shunt instead of a pn-junction, resulting in near-constant clamping voltage (27.5–28V) across its full 24–40A surge range and –40°C to +125°C temperature span. Standard TVS diodes exhibit linear VC = VBR + IPP × RDYN, causing clamping to rise sharply with current and temperature - RCLAMP0544P.N avoids this entirely, delivering predictable protection margins.
Can RCLAMP0544P.N be used on high-speed data lines like USB SuperSpeed or PCIe?
No - RCLAMP0544P.N has 175pF junction capacitance at 22V, which is too high for signal integrity on >1Gbps differential lines. It is intended exclusively for DC power rails and medium-speed control lines (e.g., enable, fault, or I²C). For USB SS, DP/DM, or PCIe lanes, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25pF) alongside RCLAMP0544P.N in hybrid protection schemes.
What is the recommended PCB layout for optimal surge performance of RCLAMP0544P.N?
All three IN pins (4,5,6) must be tied together with a single short, wide trace to the protected line; all three GND pins (1,2,3) must connect via multiple low-inductance vias to an internal ground plane. Place RCLAMP0544P.N within 3mm of the connector. Avoid thermal pads - energy is dissipated in the silicon FET, not the package. Layout directly follows Semtech's Figure 7 guidelines in the TDS2211P datasheet, applicable to RCLAMP0544P.N.
Is RCLAMP0544P.N compatible with lead-free reflow processes?
Yes - RCLAMP0544P.N is RoHS-compliant, halogen-free, and qualified for standard JEDEC J-STD-020 lead-free reflow profiles (peak temperature up to 260°C). Its DFN-6 package uses lead-free terminal finish and UL 94V-0 molding compound, supporting automated SMT assembly without reliability concerns.
RCLAMP0544P.N Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 10-UFDFN
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 4
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 5.5V
- Voltage - Clamping (Max) @ Ipp:
- 6.5V
- Current - Peak Pulse (10/1000µs):
- 6.5A (8/20µs)
- Power - Peak Pulse:
- 42W
- Power Line Protection:
- No
- Applications:
- HDMI, USB
- Capacitance @ Frequency:
- 190pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (2.5x1)
RCLAMP0544P.N FAQ
1.How can I place an order for RCLAMP0544P.N through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0544P.N 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 RCLAMP0544P.N reliable?
The price and inventory of RCLAMP0544P.N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0544P.N is usually 5 days.
3.What payment methods are accepted for RCLAMP0544P.N?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0544P.N transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0544P.N?
RCLAMP0544P.N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0544P.N 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 RCLAMP0544P.N?
For technical support, including RCLAMP0544P.N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0544P.N requirements.
6.How does Aetrix verify that RCLAMP0544P.N is sourced from the original manufacturer or authorized distributors?
All RCLAMP0544P.N 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 RCLAMP0544P.N meets industry standards.
7.What is the process for return or replacement of RCLAMP0544P.N?
All RCLAMP0544P.N units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0544P.N, 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 RCLAMP0544P.N part is unused and in its original packaging.
Return procedure for RCLAMP0544P.N:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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