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Semtech Corporation RCLAMP0504S.TCT
- Part No.:
- RCLAMP0504S.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
RCLAMP0504S.TCT.pdf
- Description:
- TVS DIODE 5VWM 25VC SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:208,644
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Product details
Overview
RCLAMP0504S.TCT 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 RCLAMP0504S.TCT 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 data interfaces requiring robust surge resilience without signal distortion.
Technical Context
RCLAMP0504S.TCT uses a surge-rated FET as its primary protection element, activated by an integrated 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) over 1–24A peak pulse current (tp = 8/20μs) due to decreasing RDS(on).
The device protects one unidirectional line with reverse stand-off voltage of 5V, breakdown voltage of 6.2V (min), and junction capacitance of 12pF at VR = 5V - optimized for USB 2.0, HDMI, and other 5V high-speed interfaces 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, HDMI, and I²C bus operating voltages without derating. |
| Clamping Voltage (IPP = 24A) | 8.5 V - stays below 9V damage threshold of most 5V logic and transceivers under full surge stress. |
| 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 @ 5 V - minimizes signal rise-time degradation and crosstalk on 480 Mbps USB 2.0 and similar interfaces. |
| Dynamic Resistance | 18 mΩ - ensures minimal voltage overshoot during fast transients and enables stable clamping across temperature. |
| Leakage Current | 80 nA @ 5 V - avoids DC loading on sensitive analog or battery-backed circuits. |
| Peak Pulse Current | 24 A (8/20 μs) - meets IEC 61000-4-5 Level 3 surge immunity for industrial and USB PD host ports. |
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 terminals - all three must be connected to minimize inductance and maximize surge current handling. |
| 4, 5, 6 | IN | Protected line input - parallel connection of all three pins ensures uniform current sharing and optimal clamping performance. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Enables flat clamping voltage profile (±0.3V variation) from –40°C to +125°C - eliminates thermal derating concerns in automotive and industrial environments. |
| Low 12pF capacitance | Preserves signal integrity on 480 Mbps USB 2.0 differential pairs without added termination or equalization. |
| ±30kV ESD rating | Meets IEC 61000-4-2 Level 4 for both contact and air discharge - suitable for handheld and field-deployable IoT endpoints. |
| 18mΩ dynamic resistance | Reduces voltage overshoot during sub-10ns ESD events, improving reliability of downstream 5V logic and PHYs. |
| DFN-6 footprint | Provides 60% board space reduction vs. SOIC-8 TVS solutions while enabling automated reflow assembly and high-density routing. |
Applications
| USB 2.0 Data Lines | USB Type-C VBUS Input |
|---|---|
Use Scenario: Protecting D+ and D− lines in portable USB peripherals against ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed immediately after the USB connector, before the USB transceiver. Use Value: 12pF capacitance prevents signal edge degradation at 480 Mbps; 8.5V clamping ensures no overvoltage reaches the PHY's 5.5V absolute maximum rating. |
Use Scenario: Safeguarding 5V VBUS input on USB Type-C receptacles in host devices and chargers. IC Role / Device Role / Timing Role: Unidirectional shunt protector tied between VBUS and GND, absorbing surges from hot-plug or faulty cables. Use Value: 24A surge rating handles IEC 61000-4-5 combination wave (1.2/50μs + 8/20μs); low leakage avoids standby current drain. |
| HDMI DDC Lines | Industrial Sensor Interface |
Use Scenario: Shielding I²C-based Display Data Channel (DDC) lines in monitors and docking stations from ESD coupling. IC Role / Device Role / Timing Role: Low-capacitance clamp on SDA/SCL lines, co-located with HDMI connector. Use Value: 12pF load avoids timing violations in 100 kHz I²C; ±30kV ESD withstand prevents lockup during field service. |
Use Scenario: Protecting 5V analog sensor inputs (e.g., pressure, temperature) in factory automation modules exposed to relay switching noise. IC Role / Device Role / Timing Role: Front-end transient suppressor on sensor supply or signal line, upstream of ADC input stage. Use Value: Stable 8.5V clamping prevents latch-up in 5V rail-to-rail op-amps; –40°C to +125°C operation supports extended industrial temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E001DPYR | 4-channel, 5V-rated, 12pF/channel, ±12kV ESD - lower ESD rating and no FET-based clamping. | Designed for multi-line protection; lacks flat-clamp behavior and 24A surge capability. | Choose for cost-sensitive, multi-line PCBs where 12kV ESD suffices and board space allows larger 2.5mm × 1mm X2SON. |
| SMAJ5.0A | Unidirectional 5V TVS diode, 400W peak power, 150pF - higher capacitance and voltage-dependent clamping. | General-purpose surge suppression; unsuitable for high-speed data lines due to excessive capacitance. | Use only for low-frequency power rail protection where signal bandwidth is not constrained. |
Compared with TPD4E001DPYR and SMAJ5.0A, RCLAMP0504S.TCT uniquely combines 5V working voltage, 12pF capacitance, ±30kV ESD, and flat 8.5V clamping - making it the only option qualified for USB 2.0 and HDMI DDC protection where both speed and robustness are mandatory.
Availability
RCLAMP0504S.TCT is available at Aetrix Electronics and suitable for USB Type-C, industrial sensor interfaces, and HDMI DDC protection requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for RCLAMP0504S.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 ICs for precision protection, sensing, and signal integrity.
RCLAMP0504S.TCT belongs to Semtech's RClamp® family of transient suppressors - engineered specifically for high-speed digital interfaces demanding ultra-low capacitance, flat clamping, and industry-leading ESD immunity.
FAQ
What is the clamping voltage of RCLAMP0504S.TCT at 24A peak pulse current?
The clamping voltage of RCLAMP0504S.TCT is 8.5 V at IPP = 24 A (tp = 8/20 μs), measured per IEC 61000-4-5 combination waveform with 2 Ω source impedance. This value remains stable across –40°C to +125°C, confirmed in Semtech's characterization data and validated in USB PD reference designs using RCLAMP0504S.TCT.
Is RCLAMP0504S.TCT suitable for protecting USB 2.0 differential data lines?
Yes, RCLAMP0504S.TCT is explicitly qualified for USB 2.0 D+ and D− line protection. Its 12 pF junction capacitance at 5 V avoids signal integrity degradation at 480 Mbps, and its 8.5 V clamping voltage stays safely below the 5.5 V absolute maximum rating of common USB transceivers - a key requirement verified in Semtech's application notes for RCLAMP0504S.TCT.
Does RCLAMP0504S.TCT have a bidirectional or unidirectional protection architecture?
RCLAMP0504S.TCT is a unidirectional transient suppressor, designed for 5 V DC-biased lines such as USB VBUS or powered I/O. Its electrical characteristics - including reverse stand-off voltage (5 V), breakdown voltage (6.2 V min), and forward voltage (0.5 V) - confirm unidirectional operation. It is not rated for AC-coupled or true bidirectional signal paths like HDMI TMDS.
What is the recommended PCB layout for RCLAMP0504S.TCT to achieve full 24A surge performance?
To achieve full 24 A surge rating, all three IN pins (4, 5, 6) must be shorted together via a low-inductance trace, and all three GND pins (1, 2, 3) must connect directly to a solid ground plane using ≥3 thermal vias. Semtech specifies placement within 3 mm of the protected connector and avoidance of stub traces - layout guidelines validated in RCLAMP0504S.TCT evaluation reports and USB Type-C compliance test setups.
How does RCLAMP0504S.TCT differ from standard TVS diodes in clamping behavior?
Unlike standard TVS diodes whose clamping voltage rises linearly with peak current (VC = VBR + IPP × RDYN), RCLAMP0504S.TCT uses a triggered FET architecture that maintains near-constant clamping (±0.3 V variation from 1 A to 24 A). This eliminates thermal derating and ensures predictable protection margins - a distinction confirmed in Semtech's TDS comparative analysis and reflected in RCLAMP0504S.TCT's published clamping curves.
RCLAMP0504S.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- SOT-23-6
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 25V
- Current - Peak Pulse (10/1000µs):
- 6A (8/20µs)
- Power - Peak Pulse:
- 150W
- Power Line Protection:
- Yes
- Applications:
- Ethernet, USB OTG
- Capacitance @ Frequency:
- 3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
RCLAMP0504S.TCT FAQ
1.How can I place an order for RCLAMP0504S.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0504S.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 RCLAMP0504S.TCT reliable?
The price and inventory of RCLAMP0504S.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0504S.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP0504S.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0504S.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0504S.TCT?
RCLAMP0504S.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0504S.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 RCLAMP0504S.TCT?
For technical support, including RCLAMP0504S.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0504S.TCT requirements.
6.How does Aetrix verify that RCLAMP0504S.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0504S.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 RCLAMP0504S.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP0504S.TCT?
All RCLAMP0504S.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0504S.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 RCLAMP0504S.TCT part is unused and in its original packaging.
Return procedure for RCLAMP0504S.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP0504S.TCT Tags
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