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Semtech Corporation RCLAMP0504N.TCT
- Part No.:
- RCLAMP0504N.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
RCLAMP0504N.TCT.pdf
- Description:
- TVS DIODE 5VWM 17.5VC SLP2020P6
- Quantity:
- Payment:
- Shipping:
Inventory:11,335
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Product details
Overview
RCLAMP0504N.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 1.6mm × 1.6mm DFN-6 package.
For engineers reviewing the RCLAMP0504N.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature and peak current, low junction capacitance (<12pF), ultra-low leakage (<100nA), and compatibility with high-speed data lines requiring minimal signal distortion.
Technical Context
RCLAMP0504N.TCT uses a surge-rated FET as its primary protection element, activated by an integrated precision trigger circuit that initiates shunting when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across the full rated peak pulse current range due to decreasing RDS(on) under surge conditions.
The device features three input terminals (pins 4–6) and three ground terminals (pins 1–3), enabling parallel conduction paths for enhanced surge current handling. Its 12pF junction capacitance at VR = 5V and 1MHz ensures minimal impact on USB 2.0 and low-speed digital signals, while its 7.5V clamping threshold aligns with 5V rail protection requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 5 V - Maximum continuous DC operating voltage before clamping activation; matches standard USB 2.0 and logic-level I/O rails. |
| Clamping Voltage (VC) | 7.5 V @ IPP = 24 A (tp = 1.2/50μs + 8/20μs combo waveform) - Ensures protected ICs remain below absolute maximum ratings during surge events. |
| ESD Withstand | ±30 kV contact & air per IEC 61000-4-2 - Provides robust system-level ESD immunity without external shielding or layout reinforcement. |
| Junction Capacitance | 12 pF @ VR = 5 V, f = 1 MHz - Low enough to avoid signal integrity degradation on USB 2.0, UART, I²C, and SPI lines. |
| Dynamic Resistance | 20 mΩ - Enables stable clamping performance independent of surge amplitude and ambient temperature. |
| Leakage Current | 100 nA @ VRWM = 5 V - Minimizes standby power loss and avoids false triggering in battery-powered IoT endpoints. |
Pinout & Package
Package: DFN-6 (1.6 mm × 1.6 mm × 0.55 mm), Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound, tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Three dedicated ground terminals - must be connected in parallel to PCB ground plane via multiple vias to minimize inductance and maximize surge current path efficiency. |
| Pins 4, 5, 6 | IN | Three parallel input terminals - connect directly to protected line (e.g., VBUS or D+/D−); all three required for full 24A rating and optimal thermal distribution. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies <0.3V across IPP = 1–24A and –40°C to +125°C - eliminates derating calculations and enables reliable protection in thermally aggressive environments. |
| FET-based shunt topology | Surge energy dissipated in low-RDS(on) channel instead of PN junction - avoids thermal runaway and extends lifetime under repeated transients. |
| Low-capacitance design | 12pF typical at 5V bias - preserves signal rise/fall times on 480 Mbps USB 2.0 and 10 Mbps CAN/FlexRay buses without equalization. |
| High-energy surge rating | 24A peak pulse current (8/20μs) - meets IEC 61000-4-5 Level 3 (±1kV, RS = 42Ω) for industrial equipment and USB PD port protection. |
Applications
| USB Type-C Power Delivery Interface | Industrial Sensor Node Protection |
|---|---|
Use Scenario: Protecting VBUS and CC lines in USB Type-C receptacles supporting up to 20V/5A power delivery against lightning-induced surges and connector hot-plug ESD. IC Role / Device Role / Timing Role: Transient diverting suppressor placed immediately adjacent to the connector, clamping overvoltage before it reaches the USB PD controller or load switch. Use Value: Maintains 7.5V clamping at full 24A surge and across –40°C to +125°C, preventing latch-up or gate oxide damage in downstream PMICs and controllers. |
Use Scenario: Securing analog sensor inputs (e.g., 4–20mA loop receivers, RTD bridges) and digital control lines (RS-485, Modbus) in factory-floor PLC modules exposed to motor switching noise and lightning coupling. IC Role / Device Role / Timing Role: Primary front-end EOS protector on field-side I/O traces, absorbing multi-kV transients before they propagate into isolation barriers or ADC front-ends. Use Value: 20mΩ dynamic resistance and stable clamping ensure no voltage overshoot beyond 7.5V, preserving ±0.1% measurement accuracy in precision analog signal chains. |
| IoT Edge Gateway Data Lines | Automotive Body Control Module (BCM) Inputs |
Use Scenario: Shielding UART, I²C, and SPI lines connecting MCU to Wi-Fi/BLE modules, eMMC, or secure elements in battery-powered smart meters and gateway hubs. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor on bidirectional data paths, minimizing signal distortion while meeting IEC 61000-4-2 Level 4 ESD compliance. Use Value: 12pF capacitance and <100nA leakage prevent timing skew and battery drain, enabling >10-year operation in sealed outdoor deployments. |
Use Scenario: Protecting LIN bus inputs, door lock actuator drivers, and ambient light sensor interfaces in BCMs subjected to ISO 7637-2 pulse 1/2a/5a and ESD events during service access. IC Role / Device Role / Timing Role: Secondary-level surge clamp on 5V-supplied sub-circuits, complementing primary TVS arrays on main harness connectors. Use Value: Stable 7.5V clamping prevents false wake-up or reset glitches in 5V microcontrollers during vehicle cranking or load dump recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | Standard unidirectional TVS diode; 5.0V VRWM, 14.4V VC @ 24A; higher dynamic resistance (~1.2Ω); 100pF capacitance. | Higher clamping voltage risks damaging 5V logic; unsuitable for high-speed data lines due to excessive capacitance. | Select only for cost-sensitive, non-high-speed, non-temperature-critical 5V rail protection where clamping margin >9V is acceptable. |
| TPD4E05U06DQAR | Quad-channel 5V ESD array; 5.5V VRWM, 12V VC @ 4A; 0.5pF per channel; rated for IEC 61000-4-2 only (no IEC 61000-4-5 surge). | Limited to low-energy ESD; cannot handle 24A lightning surges; requires four devices for full-line protection vs. single RCLAMP0504N.TCT. | Prefer for USB 2.0 data pair (D+/D−) ESD-only protection; not a functional substitute for RCLAMP0504N.TCT's combined ESD/surge capability. |
Compared with SMAJ5.0A and TPD4E05U06DQAR, RCLAMP0504N.TCT uniquely combines 24A surge rating, 7.5V clamping, 12pF capacitance, and temperature-stable performance - making it the only single-device solution for ruggedized 5V interface protection in USB PD, industrial, and automotive edge nodes.
Availability
RCLAMP0504N.TCT is available at Aetrix Electronics and suitable for USB Type-C power delivery ports, industrial sensor interfaces, and IoT gateway data lines requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for RCLAMP0504N.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 high-performance analog and mixed-signal semiconductors for power management, protection, sensing, and connectivity.
RCLAMP0504N.TCT belongs to Semtech's RClamp® family of transient diverting suppressors, engineered specifically for high-reliability, low-clamp, low-capacitance protection of high-speed and power-sensitive interfaces in consumer, industrial, and automotive systems.
FAQ
What is the maximum peak pulse current rating for RCLAMP0504N.TCT?
RCLAMP0504N.TCT is rated for 24A peak pulse current (tp = 8/20μs) per IEC 61000-4-5, with clamping voltage maintained at 7.5V across this full range. This rating assumes all three input pins (4–6) and all three ground pins (1–3) are properly connected to minimize parasitic inductance. The device exceeds common industrial surge immunity requirements including ±1kV (RS = 42Ω) testing.
Does RCLAMP0504N.TCT support bidirectional transient suppression?
Yes, RCLAMP0504N.TCT provides symmetrical ±30kV ESD protection per IEC 61000-4-2 (contact and air) and handles both positive and negative polarity surge transients up to 24A. Its FET-based architecture ensures identical clamping behavior regardless of transient polarity, making it suitable for protecting bidirectional data lines like USB D+/D− or LIN bus signals.
How does the clamping voltage of RCLAMP0504N.TCT behave across temperature?
RCLAMP0504N.TCT exhibits exceptional thermal stability: clamping voltage remains within 7.4V–7.6V from –40°C to +125°C at IPP = 24A. This flat response is enabled by its active trigger circuit and low-RDS(on) FET, eliminating the voltage drift seen in conventional TVS diodes - critical for designs operating in uncontrolled thermal environments.
Can RCLAMP0504N.TCT be used on USB 2.0 high-speed data lines?
RCLAMP0504N.TCT is optimized for USB 2.0 data line protection: its 12pF junction capacitance at 5V bias introduces negligible signal distortion on 480 Mbps differential pairs, and its 7.5V clamping threshold safely protects 3.3V/5V transceivers without compromising eye diagram integrity. Layout best practices (short traces, symmetric routing) are recommended to preserve impedance matching.
What is the recommended PCB layout for RCLAMP0504N.TCT to achieve full 24A rating?
To achieve the full 24A rating, place RCLAMP0504N.TCT within 3 mm of the protected connector. Connect all three IN pins (4–6) to the protected trace using a single short, wide copper pour; tie all three GND pins (1–3) to a solid ground plane using ≥six 0.3mm vias. Avoid stubs or tees - use daisy-chain or star topology to minimize inductance and ensure balanced current sharing across parallel terminals.
RCLAMP0504N.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 6-UDFN Exposed Pad
- 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:
- 17.5V
- Current - Peak Pulse (10/1000µs):
- 12A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP2020P6
RCLAMP0504N.TCT FAQ
1.How can I place an order for RCLAMP0504N.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0504N.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 RCLAMP0504N.TCT reliable?
The price and inventory of RCLAMP0504N.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0504N.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP0504N.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0504N.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0504N.TCT?
RCLAMP0504N.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0504N.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 RCLAMP0504N.TCT?
For technical support, including RCLAMP0504N.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0504N.TCT requirements.
6.How does Aetrix verify that RCLAMP0504N.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0504N.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 RCLAMP0504N.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP0504N.TCT?
All RCLAMP0504N.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0504N.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 RCLAMP0504N.TCT part is unused and in its original packaging.
Return procedure for RCLAMP0504N.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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