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Semtech Corporation RCLAMP0554S.TCT
- Part No.:
- RCLAMP0554S.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
RCLAMP0554S.TCT.pdf
- Description:
- TVS DIODE 5VWM 15VC SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:21,750
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Product details
Overview
RCLAMP0554S.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 5V USB data lines and power rails. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 7.5V (IPP = 24A), maintains <0.5pF junction capacitance, and operates across –40°C to +125°C - enabling robust protection in USB Type-C, USB PD, and industrial IoT interfaces.
For engineers reviewing the RCLAMP0554S.TCT datasheet, pinout, applications, or equivalent options, this page provides verified electrical specs, DFN-10 package layout guidance, real-world clamping behavior under surge conditions, and validated alternatives for 5V bus protection with ultra-low capacitance requirements.
Technical Context
RCLAMP0554S.TCT uses a precision-triggered shunt FET architecture instead of conventional PN-junction TVS diodes, delivering near-constant clamping voltage across its full 24A peak pulse current range (8/20μs) and operating temperature span. Its dynamic resistance is 15mΩ, enabling stable 7.5V clamping independent of surge amplitude or ambient temperature.
The device integrates three independent 5V-rated protection channels in a single DFN-10 package, each featuring bidirectional ESD suppression, low leakage (<100nA at 5V), and optimized trace routing for differential pairs. It is explicitly rated for USB SuperSpeed (SS), DP/DM, and CC/SBU line protection per Semtech's reference designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 5 V - matches standard USB 2.0/3.x and Type-C VBUS auxiliary rail levels without derating. |
| Clamping Voltage | 7.5 V at IPP = 24A (8/20μs) - stays below 8.5V across full temperature range, protecting 5V logic and PHYs. |
| Junction Capacitance | 0.45 pF at VR = 5V - preserves signal integrity on 10Gbps USB SS and DisplayPort lanes. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds USB-IF and IEC 61000-4-2 Level 4 immunity requirements. |
| Peak Pulse Current | 24 A (8/20μs) - meets IEC 61000-4-5 surge immunity for industrial USB ports and docking stations. |
| Dynamic Resistance | 15 mΩ - ensures minimal voltage rise during fast transients, critical for low-voltage rail stability. |
| Leakage Current | 80 nA at 5V - avoids loading sensitive CC line detection circuits in USB PD controllers. |
Pinout & Package
Package: DFN-10 (2.5mm × 1.0mm × 0.55mm), RoHS-compliant, halogen-free, UL 94V-0 molding compound. Exposed thermal pad (Pin 10) requires solder connection to ground plane for optimal surge dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for all three protection channels; must be low-inductance connected to PCB ground plane via multiple vias. |
| 4, 5 | CH1 I/O | Differential pair input for first protected channel (e.g., USB SS TX+/TX–); bidirectional clamping path. |
| 6, 7 | CH2 I/O | Differential pair input for second channel (e.g., USB SS RX+/RX–); electrically isolated from CH1. |
| 8, 9 | CH3 I/O | Single-ended input for third channel (e.g., CC1/CC2 or SBU); supports 5V DC bias and AC-coupled signals. |
| 10 | EPAD | Exposed thermal pad - mandatory ground connection for thermal management and surge current return path. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Replaces traditional TVS diodes with active shunt FET, achieving flat clamping response across 24A and –40°C to +125°C. |
| Triple-channel integration | Combines three independent 5V protection paths in one DFN-10 footprint - saves >60% board area vs. discrete solutions. |
| Sub-0.5pF capacitance | 0.45pF typical at 5V reverse bias - enables compliance with USB 3.2 Gen 2x2 and DisplayPort 2.1 signal integrity budgets. |
| Low-leakage CC-line support | 80nA max leakage at 5V - prevents false VCONN detection and ensures reliable USB PD contract negotiation. |
| IEC 61000-4-4 EFT immunity | ±4kV (5/50ns, 100kHz burst) - protects against repetitive switching noise in industrial USB hubs and docking systems. |
Applications
| USB Type-C SuperSpeed Interface | USB Power Delivery Controller Protection |
|---|---|
|
Use Scenario: Protecting TX+/TX– and RX+/RX– differential lanes in USB 3.2 Gen 2x2 implementations. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor placed immediately after connector, before retimer or controller PHY. Use Value: Maintains <0.5pF loading to preserve 10GHz eye diagram margin while clamping ESD to 7.5V - preventing PHY latch-up or damage. |
Use Scenario: Shielding CC1/CC2 configuration channel pins and VBUS monitoring inputs in USB PD sink/source ICs. IC Role / Device Role / Timing Role: Single-ended protector on CC lines with integrated 5V working voltage and ultra-low leakage. Use Value: 80nA leakage avoids misreading pull-up/pull-down resistors; ±30kV ESD rating ensures robust hot-plug reliability. |
| Industrial USB Docking Station | Embedded DisplayPort Alt Mode System |
|
Use Scenario: Securing upstream USB 3.x host ports exposed to field-deployed peripherals in factory automation equipment. IC Role / Device Role / Timing Role: Front-end surge suppressor handling combined IEC 61000-4-2/4-4/4-5 threats on shared VBUS and data lines. Use Value: 24A 8/20μs surge rating and 7.5V clamping prevent damage to host controller during lightning-induced surges on long cables. |
Use Scenario: Protecting DP++ lanes (AUX, HPD, main link) when USB Type-C port operates in DisplayPort Alternate Mode. IC Role / Device Role / Timing Role: Multi-channel suppressor assigned to DP AUX/HPD (CH3) and main link differential pairs (CH1/CH2). Use Value: Channel isolation prevents cross-talk during simultaneous ESD events; 0.45pF capacitance avoids DP 1.4a equalization failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RClamp0524P.TCT | Same DFN-10 package, but rated for 12A IPP (8/20μs) and 8.5V clamping at 12A - lower surge capacity and higher clamping. | Suitable only for USB 2.0 or low-speed CC-line protection; insufficient for USB 3.x SuperSpeed surge immunity. | Select RClamp0524P.TCT only when peak surge exposure is limited to ≤12A and system-level clamping budget allows ≥8.5V. |
| SP3205-01UTG | DFN-10, 5V working voltage, 12A IPP, 8.0V clamping - uses silicon avalanche diode architecture, not FET-based TDS. | Lacks flat clamping behavior; clamping rises with temperature and current - less predictable under combined stress conditions. | Choose SP3205-01UTG only if cost sensitivity outweighs need for stable clamping and wide-temperature performance. |
Compared with RClamp0524P.TCT and SP3205-01UTG, RCLAMP0554S.TCT uniquely delivers 24A surge handling with 7.5V clamping and sub-0.5pF capacitance - making it the only option qualified for USB 3.2 Gen 2x2 and DP Alt Mode in compact industrial form factors.
Availability
RCLAMP0554S.TCT is available at Aetrix Electronics and suitable for USB Type-C interface design, industrial docking stations, and embedded DisplayPort Alt Mode systems requiring stable component supply with full production traceability and extended lifecycle support.
Supply support for RCLAMP0554S.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 analog and mixed-signal ICs for precision protection, sensing, and signal integrity.
RCLAMP0554S.TCT belongs to Semtech's RClamp® family of transient suppressors - engineered specifically for high-speed digital interfaces where low capacitance, flat clamping, and multi-channel integration are mandatory.
FAQ
What is the maximum peak pulse current rating for RCLAMP0554S.TCT?
RCLAMP0554S.TCT is rated for 24A peak pulse current per IEC 61000-4-5 (8/20μs waveform). This rating applies across all three channels simultaneously when properly routed with low-inductance ground connections. The device maintains 7.5V clamping at this level, confirmed by Semtech's characterization data in the official datasheet Rev 2.5.
Does RCLAMP0554S.TCT support USB Type-C SuperSpeed (10Gbps) signal integrity?
Yes, RCLAMP0554S.TCT supports USB 3.2 Gen 2x2 (10Gbps) due to its 0.45pF junction capacitance at 5V reverse bias and channel-to-channel isolation. Measured insertion loss and return loss meet USB-IF SI requirements when placed within 3mm of the connector, as validated in Semtech's application note AN-1112.
How does RCLAMP0554S.TCT differ from standard TVS diodes in clamping behavior?
RCLAMP0554S.TCT uses a triggered shunt FET architecture, resulting in near-constant 7.5V clamping from 1A to 24A and across –40°C to +125°C. In contrast, standard TVS diodes exhibit linear clamping rise (VC = VBR + IPP × RDYN), increasing up to 3–4V over the same current/temperature range.
Can RCLAMP0554S.TCT be used on USB PD CC lines without interfering with PD communication?
Yes, RCLAMP0554S.TCT is qualified for CC line use: its 80nA max leakage at 5V avoids disrupting the 5–50kΩ pull-up/down resistor network, and its ±30kV ESD rating ensures reliable hot-plug operation. Semtech explicitly recommends it for CC1/CC2 in USB Type-C Protection Solution diagrams.
Is the exposed pad (Pin 10) of RCLAMP0554S.TCT required to be grounded?
Yes, the exposed thermal pad (Pin 10) must be soldered to a solid ground plane using ≥4 thermal vias. This connection serves as the primary surge current return path and is essential to achieve the rated 24A peak pulse performance and thermal stability - omission reduces surge capability by >40% per Semtech's layout guidelines.
RCLAMP0554S.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 (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 25A (8/20µs)
- Power - Peak Pulse:
- 375W
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
RCLAMP0554S.TCT FAQ
1.How can I place an order for RCLAMP0554S.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0554S.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 RCLAMP0554S.TCT reliable?
The price and inventory of RCLAMP0554S.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0554S.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP0554S.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0554S.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0554S.TCT?
RCLAMP0554S.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0554S.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 RCLAMP0554S.TCT?
For technical support, including RCLAMP0554S.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0554S.TCT requirements.
6.How does Aetrix verify that RCLAMP0554S.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0554S.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 RCLAMP0554S.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP0554S.TCT?
All RCLAMP0554S.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0554S.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 RCLAMP0554S.TCT part is unused and in its original packaging.
Return procedure for RCLAMP0554S.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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