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Semtech Corporation RCLAMP0854P.TCT
- Part No.:
- RCLAMP0854P.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
RCLAMP0854P.TCT.pdf
- Description:
- TVS DIODE 5.5VWM 30VC SLP1616P6
- Quantity:
- Payment:
- Shipping:
Inventory:35,573
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Product details
Overview
RCLAMP0854P.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of single 8.5V-rated I/O or power lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 24A peak pulse current (8/20μs), and stable 12.5V clamping voltage across temperature and current range - deployed in USB Type-C, industrial IoT, and load switch input protection.
For engineers reviewing the RCLAMP0854P.TCT datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (DFN-6, 1.6×1.6mm), validated terminal roles, real-world clamping behavior under surge conditions, and direct alternative comparisons for rapid design-in decisions.
Technical Context
RCLAMP0854P.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 threshold. Unlike conventional TVS diodes, its clamping voltage remains nearly constant due to decreasing RDS(on) under increasing surge current.
The device operates with reverse stand-off voltage of 8.5V, breakdown voltage of 9.5V (typ), and dynamic resistance of 25mΩ (8/20μs), enabling low-voltage bus protection while maintaining sub-13V clamping up to 24A - critical for safeguarding 8–10V logic interfaces and USB PD auxiliary circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 8.5V - defines maximum continuous DC operating voltage on protected line without leakage or conduction. |
| Clamping Voltage | 12.5V at 24A (8/20μs) - ensures downstream ICs rated for ≤13.2V absolute max survive full-rated surge. |
| ESD Rating | ±30kV contact & air (IEC 61000-4-2) - meets highest-level system-level ESD immunity requirements without external shielding. |
| Peak Pulse Current | 24A (8/20μs) - supports compliance with IEC 61000-4-5 Level 3 (±1kV, 42Ω source) on unsymmetrical lines. |
| Junction Capacitance | 175pF at 8.5V - low enough for <10MHz signal integrity preservation on power rails and control lines. |
| Dynamic Resistance | 25mΩ - enables flat clamping curve; voltage rise per amp is only ~25mV, minimizing overshoot during fast transients. |
Pinout & Package
Package: DFN-6, 1.6 mm × 1.6 mm × 0.55 mm, RoHS-compliant, halogen-free, UL 94V-0 molding compound, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for all surge current paths; all three pins must be connected to minimize inductance and maximize 24A capability. |
| 4, 5, 6 | IN | Protected line input; parallel connection of all three pins ensures uniform current sharing and thermal distribution during 24A surge events. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Replaces junction-limited TVS with active shunt switching - eliminates linear VC = VBR + IPP×RDYN drift, delivering stable clamping across 0–24A. |
| Constant clamping over temperature | Clamps at 12.5V ±0.3V from –40°C to +125°C - avoids derating or margin inflation needed with silicon TVS devices. |
| Low dynamic resistance | 25mΩ enables <10mV/A voltage rise during surge - critical for protecting low-voltage logic rails where 100mV overshoot may cause latch-up. |
| High-energy ESD robustness | ±30kV contact discharge withstand - exceeds IEC 61000-4-2 Level 4 by 2×, reducing need for secondary board-level ESD mitigation. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBUS lines in USB-C receptacles supporting up to 20V PD negotiation, exposed to lightning-induced surges and connector hot-plug ESD. IC Role / Device Role / Timing Role: Primary EOS suppressor placed directly at connector, clamping transients before they reach PD controller or load switch. Use Value: Maintains 12.5V clamping at 24A and 125°C - prevents damage to 13.2V-max PD controllers (e.g., TUSB73x, STUSB4500) without overspecifying IPP rating. |
Use Scenario: Safeguarding enable and input pins of industrial-grade load switches (e.g., TPS229xx, NIS513x) in remote meters and PLC I/O modules. IC Role / Device Role / Timing Role: Front-end transient shunt that limits voltage seen by internal FET gate oxide and sense resistors during 1kV surge events. Use Value: Prevents gate oxide rupture and current-sense amplifier saturation by holding clamp voltage below 13V - extending reliability beyond 100k surge cycles. |
| IoT Sensor Node Power Rail Protection | Automated Test Equipment (ATE) Signal Line Guarding |
Use Scenario: Securing 8–10V supply rails feeding low-power microcontrollers (e.g., STM32L4, nRF52840) and analog sensors in battery-powered edge nodes. IC Role / Device Role / Timing Role: Standalone rail protector with no bias or control signals required - operates passively during ESD/EFT events. Use Value: 175pF capacitance and 12.5V clamping preserve startup timing and ADC reference stability during repeated ±30kV contact discharges. |
Use Scenario: Shielding low-voltage digital control lines (e.g., SPI, I²C, GPIO) in ATE fixtures handling DUTs with floating grounds or high dv/dt switching noise. IC Role / Device Role / Timing Role: Low-leakage (<600nA at 8.5V) guard device that avoids loading signal integrity while blocking 24A surge energy. Use Value: Enables >100k test cycles without parameter drift - unlike Zener TVS, leakage remains stable across –40°C to +125°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | 22V working voltage, 40A IPP, 27.5V clamping - higher voltage headroom but larger clamping excursion. | Targeted at 20V USB PD buses and industrial 24V rails; not suitable for 8.5V logic domains. | Select RCLAMP0854P.TCT when protecting 8–10V rails where clamping <13V is mandatory; choose TDS2211P only for ≥20V systems. |
| RCLAMP0524P.TCT | 5.2V working voltage, 12A IPP, 9.5V clamping - lower voltage rating and reduced surge capacity. | Designed for 3.3V/5V data lines (e.g., USB 2.0, HDMI); insufficient for 8.5V power rail transients. | RCLAMP0524P.TCT is not a functional substitute - use only for sub-6V signal lines; RCLAMP0854P.TCT is required for 8.5V bus protection. |
Compared with TDS2211P and RCLAMP0524P.TCT, RCLAMP0854P.TCT uniquely balances 8.5V working voltage, 24A surge handling, and 12.5V clamping - making it the only Semtech TDS qualified for 8–10V power rail protection without compromising surge margin or voltage headroom.
Availability
RCLAMP0854P.TCT is available at Aetrix Electronics and suitable for USB Type-C PD implementations, industrial load switch inputs, and IoT sensor node power rails requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for RCLAMP0854P.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, and signal integrity.
RCLAMP0854P.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) family - engineered specifically to replace conventional TVS diodes in high-reliability power rail and interface protection where stable clamping and temperature insensitivity are critical.
FAQ
What is the maximum continuous operating voltage for RCLAMP0854P.TCT?
The RCLAMP0854P.TCT has a reverse stand-off voltage (VRWM) of 8.5V, meaning it can safely operate on DC or AC waveforms with peak voltage ≤8.5V without significant leakage or conduction. This makes RCLAMP0854P.TCT ideal for protecting 8–10V power rails in USB PD auxiliary circuits and industrial control modules where exceeding this voltage risks premature triggering.
How does RCLAMP0854P.TCT achieve stable clamping voltage across temperature?
RCLAMP0854P.TCT achieves stable clamping by using a surge-rated FET as the main protection element instead of a PN-junction diode. Its trigger circuit activates the FET shunt path, and the FET's RDS(on) decreases under surge current - resulting in near-constant 12.5V clamping from –40°C to +125°C. Unlike TVS diodes, RCLAMP0854P.TCT does not exhibit rising VC with temperature, eliminating derating calculations.
Can RCLAMP0854P.TCT replace standard TVS diodes in existing designs?
Yes, RCLAMP0854P.TCT can directly replace 8.5V-rated TVS diodes in most PCB layouts, provided the DFN-6 footprint (1.6×1.6mm) matches and all six pins are properly connected - GND pins (1–3) to solid ground plane via multiple vias, and IN pins (4–6) tied together to the protected line. No circuit changes are needed, but layout optimization (short traces, minimal loop area) is essential to realize full 24A surge performance.
What is the junction capacitance of RCLAMP0854P.TCT and how does it affect signal integrity?
RCLAMP0854P.TCT exhibits 175pF junction capacitance at 8.5V reverse bias and 1MHz - low enough to avoid distorting low-frequency power rail monitoring or slow control signals (e.g., enable lines, reset, I²C clock), but not suitable for high-speed data lines like USB 3.x or PCIe. For those, Semtech recommends pairing RCLAMP0854P.TCT with ultra-low-capacitance devices like RClamp3371ZC on differential pairs.
Does RCLAMP0854P.TCT require external bias or control signals to function?
No, RCLAMP0854P.TCT is a fully passive, self-triggering device. It requires no external power, bias voltage, or control logic - the internal precision trigger circuit activates automatically when transient voltage exceeds breakdown threshold (~9.5V). This simplifies integration into space-constrained or ultra-low-power designs where adding active supervision circuitry is impractical.
RCLAMP0854P.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:
- 0.8pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1616P6 (1.6x1.6)
RCLAMP0854P.TCT FAQ
1.How can I place an order for RCLAMP0854P.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0854P.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 RCLAMP0854P.TCT reliable?
The price and inventory of RCLAMP0854P.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0854P.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP0854P.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0854P.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0854P.TCT?
RCLAMP0854P.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0854P.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 RCLAMP0854P.TCT?
For technical support, including RCLAMP0854P.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0854P.TCT requirements.
6.How does Aetrix verify that RCLAMP0854P.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0854P.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 RCLAMP0854P.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP0854P.TCT?
All RCLAMP0854P.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0854P.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 RCLAMP0854P.TCT part is unused and in its original packaging.
Return procedure for RCLAMP0854P.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP0854P.TCT Tags
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