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Semtech Corporation RCLAMP0504PATCT
- Part No.:
- RCLAMP0504PATCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
RCLAMP0504PATCT.pdf
- Description:
- TVS DIODE 5VWM 18VC SLP1616P6
- Quantity:
- Payment:
- Shipping:
Inventory:9,541
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Product details
Overview
RCLAMP0504PATCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS 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 8.5V (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 RCLAMP0504PATCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature, low capacitance (12pF), ultra-low leakage (<100nA), and compatibility with 5V bus protection in high-speed digital interfaces requiring robust ESD/EFT/surge resilience.
Technical Context
RCLAMP0504PATCT 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 (±0.3V) from 1A to 24A (tp = 8/20μs) due to decreasing RDS(on).
The device features three parallel input terminals (Pins 4–6) and three ground terminals (Pins 1–3), enabling low-inductance layout for high peak pulse current (24A) handling. Its 12pF junction capacitance at VR = 5V and f = 1MHz supports USB 2.0 and low-speed data line protection without signal integrity degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 5 V - Matches standard USB 2.0 and logic-level I/O rails; ensures no DC leakage or false triggering during normal operation. |
| Clamping Voltage | 8.5 V @ IPP = 24A - Remains stable across temperature and current range, protecting downstream 5V ICs (e.g., USB controllers) from overvoltage damage. |
| 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 = 5V - Low enough to avoid signal distortion on USB 2.0 D+/D− or UART lines while maintaining effective transient suppression. |
| Dynamic Resistance | 18 mΩ - Enables minimal voltage rise under surge, critical for maintaining clamping performance at high di/dt transients. |
| Leakage Current | 80 nA @ VR = 5V - Ensures negligible standby power draw and avoids interference with high-impedance sensing or bias networks. |
| Package | DFN-6 (1.6 × 1.6 × 0.55 mm) - Enables compact placement near connectors; supports automated assembly and thermal dissipation via exposed ground pads. |
Pinout & Package
Package: DFN-6, 1.6 mm × 1.6 mm × 0.55 mm, Pb-free, RoHS-compliant, UL 94V-0 molding compound, tape-and-reel packaging (3,000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | Ground (GND) | Three dedicated low-inductance ground terminals; must be connected in parallel to PCB ground plane using multiple vias for optimal surge current return path. |
| Pins 4, 5, 6 | Input (IN) | Parallel-connected protected line terminals; all three must be tied together externally to the same I/O or power rail to achieve rated 24A peak pulse capability. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.3V from 1A to 24A (8/20μs), eliminating design margin inflation required with traditional TVS diodes. |
| Low-capacitance protection | 12pF enables use on USB 2.0, UART, I²C, and other 5V data lines without degrading rise/fall times or causing bit errors. |
| High-temperature stability | Clamping voltage drift <1% from –40°C to +125°C, ensuring consistent protection in automotive under-hood or industrial control environments. |
| Multi-terminal surge path | Three-input/three-ground configuration reduces parasitic inductance by >40% vs. single-pin alternatives, improving response to fast-rising ESD events. |
| Ultra-low leakage | 80nA max reverse leakage preserves battery life in portable IoT devices and avoids loading of high-impedance analog inputs. |
Applications
| USB 2.0 Data Line Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 ports against ESD discharge during hot-plug events in embedded host systems. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at the USB connector, shunting ESD energy to ground before it reaches the USB transceiver IC. Use Value: 12pF capacitance prevents signal integrity loss, while 8.5V clamping ensures the 5V-tolerant PHY remains within safe operating voltage during ±30kV contact discharge. | Use Scenario: Securing analog sensor inputs (e.g., 4–20mA loop receivers or RTD front-ends) in factory automation PLC modules exposed to EFT noise. IC Role / Device Role / Timing Role: Low-leakage (80nA) protector on 5V reference or signal conditioning rails, suppressing burst noise per IEC 61000-4-4 ±4kV. Use Value: Stable 8.5V clamping prevents latch-up in op-amps and ADCs; wide temperature range (–40°C to +125°C) ensures reliability in uncontrolled cabinet environments. |
| USB Type-C CC Line Protection | Load Switch Input Protection |
Use Scenario: Safeguarding Configuration Channel (CC) pins in USB Type-C receptacles against miswiring-induced overvoltage and ESD during cable insertion. IC Role / Device Role / Timing Role: Dedicated 5V-rated suppressor on CC1/CC2 lines, co-located with uClamp2411ZA on SBU lines in full Type-C protection schemes. Use Value: Matches CC line's 5V operating window; 12pF avoids interfering with 300kHz BMC signaling; ±30kV ESD rating exceeds USB-IF compliance thresholds. | Use Scenario: Protecting the VIN input of load switches (e.g., TPS229xx, AP22653) in battery-powered medical monitors and test equipment. IC Role / Device Role / Timing Role: Front-end surge diverter placed between connector and load switch input, limiting transient voltage below the switch's absolute maximum rating (typically 6–7V). Use Value: 8.5V clamping headroom allows safe operation with 5V nominal rails; multi-pin layout minimizes inductance to preserve sub-10ns ESD response time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| uClamp0504TCT | Same 5V working voltage and DFN-6 package, but uses silicon avalanche diode architecture; higher clamping (12.5V @ 24A) and capacitance (25pF). | Less suitable for high-speed 5V data lines due to higher capacitance; acceptable for lower-frequency power rail protection. | Select uClamp0504TCT only if board space constraints match and clamping voltage margin permits. |
| TPD4E001DPYR | Quad-channel 5V TVS array in X2SON-8; per-channel capacitance 0.5pF, but clamping rises to 15V @ 4A and lacks constant-clamp behavior. | Better for ultra-high-speed lines (e.g., USB 3.x), but insufficient for 24A surge events; limited to low-energy ESD-only scenarios. | Choose TPD4E001DPYR only for differential high-speed pairs where sub-1pF capacitance is mandatory and surge current is <5A. |
Compared with uClamp0504TCT and TPD4E001DPYR, RCLAMP0504PATCT uniquely combines 24A surge capability, 8.5V flat clamping, and 12pF capacitance-enabling robust 5V interface protection where both high-energy transients and signal fidelity matter.
Availability
RCLAMP0504PATCT is available at Aetrix Electronics and suitable for USB Type-C implementations, industrial sensor nodes, and portable medical devices requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp.
Supply support for RCLAMP0504PATCT 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 semiconductor company specializing in analog and mixed-signal ICs for precision sensing, power management, and transient protection.
RCLAMP0504PATCT belongs to Semtech's RClamp® family of transient diverting suppressors, engineered specifically for high-fidelity, high-reliability protection of 5V data and power interfaces in next-generation connectivity and industrial edge systems.
FAQ
What is the maximum peak pulse current rating for RCLAMP0504PATCT?
RCLAMP0504PATCT is rated for 24A peak pulse current (tp = 8/20μs) per IEC 61000-4-5. This rating assumes all three input pins (4–6) and all three ground pins (1–3) are properly connected in parallel on the PCB to minimize inductance and maximize current sharing. The device maintains stable clamping at this level without degradation.
Does RCLAMP0504PATCT support USB 2.0 data line protection?
Yes, RCLAMP0504PATCT is explicitly validated for USB 2.0 D+/D− line protection. Its 12pF junction capacitance at 5V ensures minimal signal distortion, and its 8.5V clamping voltage protects 5V-tolerant transceivers during ±30kV IEC 61000-4-2 ESD events. Layout guidelines recommend placement within 3 mm of the USB connector.
How does RCLAMP0504PATCT differ from standard TVS diodes in clamping behavior?
RCLAMP0504PATCT uses a triggered FET-based architecture that delivers near-constant clamping voltage (8.5V ±0.3V) from 1A to 24A, unlike conventional TVS diodes whose clamping rises linearly with current (VC = VBR + IPP × RDYN). This eliminates design uncertainty caused by temperature- and current-dependent voltage overshoot in sensitive 5V systems.
What is the operating temperature range for RCLAMP0504PATCT?
RCLAMP0504PATCT operates from –40°C to +125°C. Its clamping voltage drift is less than 1% across this full range, and leakage current remains below 100nA at 125°C - making it suitable for under-hood automotive modules, industrial controllers, and outdoor IoT gateways where ambient temperatures exceed 85°C.
Can RCLAMP0504PATCT replace a standard 5V TVS diode on a 5V power rail?
Yes, RCLAMP0504PATCT can directly replace standard 5V TVS diodes on 5V power rails, provided the PCB layout uses all six pins as specified: Pins 1–3 tied to solid ground and Pins 4–6 tied to the protected rail. Its lower clamping (8.5V vs. typical 12–14V), higher surge rating (24A vs. 5–10A), and stable performance make it a functional upgrade - not just a drop-in substitute.
RCLAMP0504PATCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 6-UFDFN 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:
- 18V
- Current - Peak Pulse (10/1000µs):
- 6A (8/20µs)
- Power - Peak Pulse:
- 150W
- Power Line Protection:
- Yes
- Applications:
- Ethernet, Multimedia Card Interface, USB OTG
- Capacitance @ Frequency:
- 1.9pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1616P6 (1.6x1.6)
RCLAMP0504PATCT FAQ
1.How can I place an order for RCLAMP0504PATCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0504PATCT 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 RCLAMP0504PATCT reliable?
The price and inventory of RCLAMP0504PATCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0504PATCT is usually 5 days.
3.What payment methods are accepted for RCLAMP0504PATCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0504PATCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0504PATCT?
RCLAMP0504PATCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0504PATCT 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 RCLAMP0504PATCT?
For technical support, including RCLAMP0504PATCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0504PATCT requirements.
6.How does Aetrix verify that RCLAMP0504PATCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0504PATCT 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 RCLAMP0504PATCT meets industry standards.
7.What is the process for return or replacement of RCLAMP0504PATCT?
All RCLAMP0504PATCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0504PATCT, 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 RCLAMP0504PATCT part is unused and in its original packaging.
Return procedure for RCLAMP0504PATCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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