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Semtech Corporation RCLAMP0544T.TCT
- Part No.:
- RCLAMP0544T.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 8-XFDFN
- Datasheet:
-
RCLAMP0544T.TCT.pdf
- Description:
- TVS DIODE 5VWM 15VC SLP2010P8T
- Quantity:
- Payment:
- Shipping:
Inventory:25,580
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Product details
Overview
RCLAMP0544T.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of single 5V I/O or power lines in USB Type-C, USB PD, and industrial interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 7.5V (IPP = 24A), maintains <20mΩ dynamic resistance, and operates from –40°C to +125°C in a 1.6 × 1.6 mm DFN-6 package.
For engineers reviewing the RCLAMP0544T.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature and peak current, low leakage (<1 µA), junction capacitance (12 pF), and compatibility with 5V bus protection in compact USB-C port designs.
Technical Context
RCLAMP0544T.TCT 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 (7.5V typ.) from 1A to 24A (tp = 8/20 µs) due to decreasing RDS(on) under surge conditions.
The device protects one bidirectional line with a 5V working voltage (VRWM = 5V), 6.5V typical breakdown (VBR), and 7.5V clamping at 24A. Its 12 pF junction capacitance and <1 µA reverse leakage at 5V make it suitable for high-speed data lines where signal integrity and low loading are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 5 V - Matches standard USB 2.0/3.x and USB PD sink-side VBUS monitoring rails. |
| Clamping Voltage | 7.5 V @ IPP = 24 A (tp = 8/20 µs) - Keeps protected ICs (e.g., USB controllers) safely below 8.5 V damage threshold during surge events. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - Exceeds Level 4 immunity requirements for consumer and industrial end equipment. |
| Junction Capacitance | 12 pF @ VR = 5 V, f = 1 MHz - Low enough to avoid signal degradation on USB 2.0 differential pairs and CC lines. |
| Dynamic Resistance | 18 mΩ - Enables stable clamping and minimizes voltage overshoot during fast-rising transients (e.g., ESD). |
| Reverse Leakage | 0.5 µA @ VRWM = 5 V - Ensures negligible standby power loss and avoids false triggering in always-on interfaces. |
Pinout & Package
Package: DFN-6 (1.6 mm × 1.6 mm × 0.55 mm), RoHS-compliant, halogen-free, UL 94V-0 molding compound, tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three pins must be connected to maximize current sharing and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input (bidirectional); tied together internally and externally to handle full 24A surge across parallel paths. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Replaces traditional TVS diodes with active shunt switching, delivering flat clamping voltage across 1–24 A surge range. |
| Ultra-low dynamic resistance | 18 mΩ enables sub-0.5 V voltage rise between 1 A and 24 A, reducing stress on downstream FETs and regulators. |
| Temperature-stable clamping | Clamping voltage varies <±0.2 V from –40°C to +125°C - eliminates derating concerns in automotive or industrial thermal environments. |
| Low capacitance + low leakage synergy | 12 pF / 0.5 µA combination supports USB 2.0 eye diagram compliance while minimizing DC loading on CC/SBU lines. |
Applications
| USB Type-C Port Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBUS and CC lines in compact USB-C receptacles exposed to repeated ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at connector, clamping transients before they reach USB PD controller or multiplexer. Use Value: Prevents latch-up or gate oxide damage in 5V-tolerant PD controllers (e.g., TUSB564, CYPD3177) by limiting peak voltage to ≤7.5 V under 24A surge. |
Use Scenario: Safeguarding enable and input pins of industrial-grade load switches (e.g., TPS229xx, NX3P157) against 1 kV/42 Ω surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Front-end transient clamp on VIN or EN inputs, ensuring switch FETs remain within safe SOA during surge events. Use Value: Extends reliability of 5V-input load switches in remote meters and PLC I/O modules by maintaining clamping <8 V across full operating temperature range. |
| USB 2.0 Data Line Protection | IoT Sensor Hub Interface Protection |
Use Scenario: Shielding D+ and D− lines in embedded host devices (e.g., docking stations, smart displays) from ESD coupling via cables. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp on full-speed USB differential pair, preserving signal integrity up to 480 Mbps. Use Value: Maintains USB 2.0 eye mask compliance with only 12 pF loading and no DC bias shift, unlike Zener-based alternatives. |
Use Scenario: Hardening 5V I²C or UART lines connecting MCU to environmental sensors (e.g., BME680, SHT45) in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Standby-mode protector on sensor supply or communication lines, activated only during EOS events. Use Value: Enables >10-year field life in unattended deployments by eliminating cumulative leakage-induced drift and thermal runaway risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| uClamp0504T.TCT | Same 5V VRWM, but lower 18A IPP rating and 8.5V clamping at 18A; 10 pF capacitance. | Better suited for space-constrained, lower-energy interfaces (e.g., CC-only protection), not full VBUS surge duty. | Select uClamp0504T.TCT only if peak surge requirement is ≤18A and board layout cannot accommodate RCLAMP0544T.TCT's slightly larger thermal footprint. |
| TPD4E004DRYR | Quad-channel 5V TVS array; 12 pF/channel, 12A IPP, 14V clamping at 12A; uses silicon avalanche diode architecture. | Offers multi-line integration but lacks flat clamping - clamping rises to 14V at 12A and increases further at high temperature. | Choose TPD4E004DRYR only when protecting ≥2 independent 5V lines on same net and acceptable clamping margin is >12V. |
Compared with uClamp0504T.TCT and TPD4E004DRYR, RCLAMP0544T.TCT provides superior surge robustness (24A vs. 18A/12A), tighter clamping control (7.5V vs. 8.5V/14V), and stable performance across temperature - making it optimal for mission-critical 5V bus protection where voltage margin is tight.
Availability
RCLAMP0544T.TCT is available at Aetrix Electronics and suitable for USB Type-C port hardening, industrial load switch input protection, and IoT sensor interface safeguarding requiring stable component supply and long-term lifecycle support.
Supply support for RCLAMP0544T.TCT 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 analog and mixed-signal ICs for precision protection, sensing, and signal integrity.
RCLAMP0544T.TCT belongs to Semtech's RClamp® family of transient diverting suppressors, engineered specifically for high-reliability 5V interface protection in next-generation USB, industrial, and IoT systems.
FAQ
What is the maximum peak pulse current rating for RCLAMP0544T.TCT?
RCLAMP0544T.TCT is rated for 24 A peak pulse current (tp = 8/20 µs) per IEC 61000-4-5. This value is validated across –40°C to +125°C and corresponds to a clamping voltage of 7.5 V. The device also sustains ±1 kV (1.2/50 µs voltage waveform, 42 Ω source) for unsymmetrical line testing, confirming suitability for industrial surge immunity requirements.
How does RCLAMP0544T.TCT differ from standard TVS diodes in clamping behavior?
RCLAMP0544T.TCT uses an active FET-based shunt architecture instead of a passive PN-junction. As surge current increases from 1 A to 24 A, its dynamic resistance drops to ~18 mΩ, resulting in near-constant clamping voltage (~7.5 V). In contrast, standard TVS diodes exhibit linear clamping rise (VC = VBR + IPP × RDYN), often exceeding 12 V at full rating - a critical distinction for 5V-tolerant ICs.
Can RCLAMP0544T.TCT be used on USB 2.0 D+ and D− lines without degrading signal integrity?
Yes. RCLAMP0544T.TCT has only 12 pF junction capacitance at 5 V bias and <1 µA leakage, meeting USB 2.0 full-speed (12 Mbps) and high-speed (480 Mbps) eye diagram requirements. Its bidirectional design and symmetric clamping ensure no DC bias shift or signal asymmetry - verified in Semtech's USB Type-C reference layouts with <0.5 dB insertion loss at 240 MHz.
What is the recommended PCB layout for RCLAMP0544T.TCT to achieve full 24A surge capability?
To achieve rated 24A performance, connect all three GND pins (1, 2, 3) to a solid ground plane using ≥4 thermal vias, and tie all three IN pins (4, 5, 6) together with a short, wide trace (<3 mm) directly at the protected connector. Place RCLAMP0544T.TCT within 5 mm of the entry point - longer traces add inductance that raises clamping voltage during fast ESD events.
Is RCLAMP0544T.TCT compatible with lead-free reflow processes?
Yes. RCLAMP0544T.TCT is qualified for standard JEDEC J-STD-020D lead-free reflow profiles, including peak temperatures up to 260°C for 30 seconds. Its DFN-6 package uses matte tin (Sn) lead finish, complies with RoHS and REACH, and carries UL 94V-0 flammability rating - fully compatible with automated SMT assembly lines.
RCLAMP0544T.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 8-XFDFN
- 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):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 75W
- Power Line Protection:
- Yes
- Applications:
- HDMI
- Capacitance @ Frequency:
- 0.45pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP2010P8T
RCLAMP0544T.TCT FAQ
1.How can I place an order for RCLAMP0544T.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0544T.TCT 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 RCLAMP0544T.TCT reliable?
The price and inventory of RCLAMP0544T.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0544T.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP0544T.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0544T.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0544T.TCT?
RCLAMP0544T.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0544T.TCT 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 RCLAMP0544T.TCT?
For technical support, including RCLAMP0544T.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0544T.TCT requirements.
6.How does Aetrix verify that RCLAMP0544T.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0544T.TCT 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 RCLAMP0544T.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP0544T.TCT?
All RCLAMP0544T.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0544T.TCT, 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 RCLAMP0544T.TCT part is unused and in its original packaging.
Return procedure for RCLAMP0544T.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP0544T.TCT Tags
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