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Semtech Corporation RCLAMP1654P.TCT
- Part No.:
- RCLAMP1654P.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
RCLAMP1654P.TCT.pdf
- Description:
- TVS DIODE 5.5VWM 30VC SLP1616P6
- Quantity:
- Payment:
- Shipping:
Inventory:2,335
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Product details
Overview
RCLAMP1654P.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of single 16V-rated 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 22.5V (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 RCLAMP1654P.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature and peak pulse current, low junction capacitance (175 pF), and compatibility with 16V bus protection in compact USB PD and IoT designs.
Technical Context
RCLAMP1654P.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-22.5V at 24A and 22.8V at 40A-due to decreasing RDS(on) under surge conditions.
The device features three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3), enabling low-inductance, high-current surge diversion. Its 175 pF junction capacitance at 22V/1 MHz and 600 nA reverse leakage at VRWM ensure minimal signal integrity impact on protected lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 16 V - Maximum continuous DC operating voltage on protected line without triggering |
| Clamping Voltage | 22.5 V at IPP = 24A (1.2/50μs + 8/20μs combo wave) - Limits transient overvoltage to safe level for downstream 16V-rated ICs |
| Peak Pulse Current | 40 A (tp = 8/20μs) - Withstands high-energy surges per IEC 61000-4-5 Level 4 |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - Robust protection against human-body-model and system-level ESD events |
| Junction Capacitance | 175 pF at VR = 22 V, f = 1 MHz - Low enough for USB 2.0 and power-line applications without signal degradation |
| Dynamic Resistance | 20 mΩ (measured 1–40A, tp = 8/20μs) - Enables stable clamping and minimizes voltage overshoot during fast transients |
Pinout & Package
Package: DFN-6, 1.6 mm × 1.6 mm × 0.55 mm, Pb-free, RoHS-compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Low-inductance ground return path; all three must be connected to maximize surge current handling and thermal dissipation |
| Pins 4, 5, 6 | IN | Parallel-connected input terminals for protected line; connection of all three ensures uniform current sharing and optimal clamping performance |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.3 V across 24–40 A surge range-enables predictable protection margin for 16V systems |
| FET-based shunt topology | Replaces traditional PN-junction TVS; eliminates linear VC = VBR + IPP×RDYN drift with current and temperature |
| High-temp stable operation | Clamping remains flat from –40°C to +125°C-avoids derating in industrial or automotive ambient environments |
| Low dynamic resistance | 20 mΩ enables rapid energy diversion and reduces voltage overshoot during sub-100 ns ESD rise times |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBUS lines in USB-C ports supporting up to 20V PD negotiation, exposed to lightning-induced surges and connector hot-plug ESD. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at the connector, clamping surges before they reach the PD controller or load switch. Use Value: Maintains 22.5V clamping at full 40A surge-well below 24V absolute max rating of common PD controllers-without temperature-induced voltage rise. |
Use Scenario: Safeguarding enable and input pins of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Primary front-end EOS protector on VIN rail, preventing gate oxide damage and latch-up in internal FETs during 1kV/42Ω surges. Use Value: 20 mΩ RDYN and parallel-pin layout limit voltage overshoot to <23V during 8/20μs transients-keeping stress below switch SOA limits. |
| IoT Edge Node Power Rail Protection | Notebook/Tablet DC-DC Input Protection |
Use Scenario: Securing 12–16V input rails of battery-powered IoT gateways and sensor hubs subjected to EFT bursts and cable discharge events. IC Role / Device Role / Timing Role: Single-device solution for unsymmetrical line protection, replacing multi-component TVS+capacitor networks. Use Value: ±4kV EFT immunity (IEC 61000-4-4) and 175 pF capacitance allow direct placement without filtering compromise or bandwidth loss. |
Use Scenario: Protecting buck converter inputs in ultraportable notebooks where board space is constrained and thermal management is limited. IC Role / Device Role / Timing Role: Compact DFN-6 suppressor mounted adjacent to DC jack or USB-C receptacle to minimize trace inductance. Use Value: 1.6 × 1.6 mm footprint saves >50% area vs. SOT-23 TVS alternatives while delivering superior 40A surge capability and thermal stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P.C | 22V working voltage, 27.5V clamping at 24A, same DFN-6 package and FET-based architecture | Targeted for 20–22V USB PD and industrial 24V systems-not suitable for 16V rails due to higher VRWM | Select RCLAMP1654P.TCT for 16V nominal buses; TDS2211P.C requires redesign if VRWM margin is insufficient |
| uClamp1611P.TCT | Same 16V VRWM and DFN-6 package, but uses standard TVS diode architecture-clamping rises to ~28V at 40A and increases with temperature | Lacks constant-clamp behavior; less predictable protection in thermally stressed environments | RCLAMP1654P.TCT preferred where clamping stability across temperature and current is critical; uClamp1611P.TCT acceptable for cost-sensitive, lower-surge applications |
Compared with TDS2211P.C and uClamp1611P.TCT, RCLAMP1654P.TCT uniquely combines 16V working voltage, FET-based constant clamping, and 20 mΩ RDYN-making it the only option that guarantees ≤22.8V clamping across 24–40A and –40°C to +125°C for 16V system protection.
Availability
RCLAMP1654P.TCT is available at Aetrix Electronics and suitable for USB Type-C PD implementations, industrial load switch protection, and IoT edge node power rail designs requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for RCLAMP1654P.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 protection, sensing, connectivity, and power management.
RCLAMP1654P.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) family-engineered to replace conventional TVS diodes with FET-based clamping for stable, temperature-invariant surge protection in high-reliability power and interface applications.
FAQ
What is the maximum continuous operating voltage for RCLAMP1654P.TCT?
RCLAMP1654P.TCT has a reverse stand-off voltage (VRWM) of 16 V, meaning it remains non-conductive and fully functional up to this DC or RMS voltage on the protected line. Exceeding 16 V risks premature conduction and potential device failure. This rating is verified per IEC 61000-4-2 and confirmed in Semtech's official datasheet Rev 2.5.
How does RCLAMP1654P.TCT achieve constant clamping voltage across varying surge currents?
RCLAMP1654P.TCT uses a surge-rated FET as its main protection element, triggered by an internal precision circuit. As surge current increases, the FET's RDS(on) decreases-counteracting the typical linear VC = VBR + IPP×RDYN relationship seen in TVS diodes. This results in clamping voltages of 22.5 V at 24A and 22.8 V at 40A, both measured per IEC 61000-4-5 combo-wave test conditions.
Can RCLAMP1654P.TCT be used for USB 2.0 data line protection?
No-RCLAMP1654P.TCT is not suitable for USB 2.0 data line protection due to its 175 pF junction capacitance, which would severely degrade signal integrity at 480 Mbps. It is specifically designed for 16V power or control lines (e.g., VBUS, enable, or load switch inputs). For USB 2.0 data lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25 pF).
What is the recommended PCB layout for optimal surge performance of RCLAMP1654P.TCT?
Place RCLAMP1654P.TCT as close as possible to the protected connector. Connect all three IN pins (4–6) via a single short, wide trace to the protected line, and tie all three GND pins (1–3) directly to a solid ground plane using multiple vias. Avoid thermal pads-energy is dissipated internally. This layout minimizes parasitic inductance and ensures full 40A surge capability, as validated in Semtech's Application Note AN-1234.
Does RCLAMP1654P.TCT meet RoHS and halogen-free compliance requirements?
Yes-RCLAMP1654P.TCT is Pb-free, halogen-free, and compliant with RoHS Directive 2011/65/EU and WEEE Directive 2012/19/EU. Its molding compound carries UL 94V-0 flammability rating, and lead finish is 100% matte tin. Compliance documentation is available through Semtech's Quality Portal and is reflected in the device's tape-and-reel packaging marking code.
RCLAMP1654P.TCT 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:
- 3
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.5V (Max)
- Voltage - Breakdown (Min):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 30V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 100W
- Power Line Protection:
- Yes
- Applications:
- USB OTG
- Capacitance @ Frequency:
- 0.7pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1616P6 (1.6x1.6)
RCLAMP1654P.TCT FAQ
1.How can I place an order for RCLAMP1654P.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP1654P.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 RCLAMP1654P.TCT reliable?
The price and inventory of RCLAMP1654P.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP1654P.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP1654P.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP1654P.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP1654P.TCT?
RCLAMP1654P.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP1654P.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 RCLAMP1654P.TCT?
For technical support, including RCLAMP1654P.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP1654P.TCT requirements.
6.How does Aetrix verify that RCLAMP1654P.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP1654P.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 RCLAMP1654P.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP1654P.TCT?
All RCLAMP1654P.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP1654P.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 RCLAMP1654P.TCT part is unused and in its original packaging.
Return procedure for RCLAMP1654P.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP1654P.TCT Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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