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Semtech Corporation RCLAMP0551P.TNT
- Part No.:
- RCLAMP0551P.TNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
RCLAMP0551P.TNT.pdf
- Description:
- TVS DIODE 5VWM 20VC SLP1006P2
- Quantity:
- Payment:
- Shipping:
Inventory:9,940
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Product details
Overview
RCLAMP0551P.TNT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 5V I/O or power lines in USB, industrial, and IoT interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 7.5V (IPP = 24A), maintains constant clamping across temperature (−40°C to +125°C), and uses a surge-rated FET architecture for stable low-voltage protection in USB Type-C CC/SBU and load switch input applications.
For engineers reviewing the RCLAMP0551P.TNT datasheet, pinout, applications, or equivalent options, key selection criteria include its 5V working voltage, 7.5V clamping at 24A, 0.25pF junction capacitance, DFN-6 1.6×1.6mm package, and FET-based constant-clamp behavior-critical for protecting sensitive 5V USB PD controllers and superspeed data lines.
Technical Context
RCLAMP0551P.TNT implements a precision-triggered shunt FET architecture instead of conventional PN-junction TVS diodes. Its trigger circuit activates the low-RDS(on) FET during transients, enabling near-constant clamping voltage independent of peak pulse current magnitude or operating temperature.
The device protects one 5V line with bidirectional operation, supports combination-wave surge testing per IEC 61000-4-5 (±1kV, RS = 42Ω), and achieves ultra-low dynamic resistance (12 mΩ) and minimal junction capacitance (0.25 pF at VR = 5V), making it suitable for high-speed signal integrity-critical paths like USB CC, SBU, and DP/DM lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 5 V - Matches standard USB PD CC/SBU and logic-level I/O rails without derating. |
| Clamping Voltage | 7.5 V at IPP = 24 A - Remains stable across −40°C to +125°C, ensuring consistent protection margin for 5V ICs. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - Exceeds Level 4 immunity requirements for consumer and industrial ports. |
| Junction Capacitance | 0.25 pF at VR = 5 V - Enables use on USB 3.x/Type-C superspeed lanes without signal integrity degradation. |
| Dynamic Resistance | 12 mΩ - Minimizes voltage rise under surge, supporting high-peak-current diversion with low thermal stress. |
| Leakage Current | 100 nA max at VRWM - Ensures negligible standby power loss in battery-powered IoT and portable devices. |
| Package | DFN-6, 1.6 × 1.6 × 0.55 mm - Enables ultra-compact placement adjacent to connectors with minimal PCB area. |
Pinout & Package
Package: DFN-6 (1.6 mm × 1.6 mm × 0.55 mm), RoHS-compliant, Pb-free, UL 94V-0 molding compound, tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for all surge current; must be connected with low-inductance layout (multiple vias recommended). |
| 4, 5, 6 | IN | Protected line input (bidirectional); all three pins are paralleled internally and must be shorted externally for full 24A rating. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based constant-clamp architecture | Clamping voltage remains ≤7.5 V from 1A to 24A (8/20 µs), eliminating voltage drift seen in TVS diodes. |
| Ultra-low junction capacitance | 0.25 pF enables direct integration on USB 3.2 Gen 2 (10 Gbps) and DisplayPort 1.4 lanes without equalization penalty. |
| High-temperature stability | Clamping voltage variation <0.3 V over −40°C to +125°C ensures reliable protection in automotive and industrial ambient conditions. |
| Low dynamic resistance | 12 mΩ minimizes IR drop during surge, reducing localized heating and extending device lifetime under repeated transients. |
| Integrated multi-pin parallel structure | Three-input and three-ground terminals reduce trace inductance and distribute current, enabling 24A peak handling in 1.6 mm² footprint. |
Applications
| USB Type-C CC/SBU Line Protection | USB Superspeed (TX/RX) Lane Protection |
|---|---|
Use Scenario: Protecting USB Type-C Configuration Channel (CC) and Sideband Use (SBU) pins against ESD and EOS events during hot-plug and cable insertion. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at connector, clamping surges before they reach the USB PD controller. Use Value: 7.5 V clamping at 24A ensures PD controller VGS and gate oxide remain within safe limits, even at 125°C ambient. | Use Scenario: Safeguarding USB 3.2 Gen 2 differential pairs (TX+/−, RX+/−) from ESD without degrading 10 Gbps signal integrity. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor integrated inline with high-speed traces, minimizing reflection and jitter. Use Value: 0.25 pF capacitance prevents measurable eye diagram closure or bit error rate increase at 10 Gbps. |
| Industrial Load Switch Input Protection | IoT Sensor Node Power Rail Protection |
Use Scenario: Shielding e-fuse or load switch inputs (e.g., HS2950P) from lightning-induced surges in remote meters and factory automation equipment. IC Role / Device Role / Timing Role: Primary front-end protector that diverts >24A transients away from the load switch's internal MOSFET drain. Use Value: Constant 7.5 V clamp prevents VDS overstress on the load switch, avoiding latch-up or permanent failure. | Use Scenario: Securing 5V power rails feeding ultra-low-power sensors (e.g., environmental, motion) in battery-operated edge nodes. IC Role / Device Role / Timing Role: Standby-mode protector with sub-100 nA leakage, activated only during EOS events. Use Value: 100 nA max leakage preserves battery life over multi-year deployments while maintaining full ±30 kV ESD immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| uClamp0501P.TCT | Same 5V VRWM, but higher 8.5V clamping at 24A; 0.35pF capacitance; DFN-6 package. | Suitable for less timing-critical 5V lines where 1V higher clamp is acceptable. | Prefer RCLAMP0551P.TNT when protecting 5V logic with tight VDD margins or high-speed signals requiring <0.3pF. |
| RClamp3371ZC | Lower 3.3V VRWM; 5.5V clamping at 12A; 0.25pF; same DFN-6 footprint. | Designed for 3.3V I/O (e.g., MCU GPIO, UART), not 5V bus protection. | Select RCLAMP0551P.TNT for 5V systems; RClamp3371ZC only if operating voltage is strictly ≤3.6V. |
Compared with uClamp0501P.TCT and RClamp3371ZC, RCLAMP0551P.TNT uniquely balances 5V compatibility, 7.5V clamping, and 0.25pF capacitance-making it the optimal choice for USB Type-C CC/SBU and 5V superspeed lane protection where voltage margin and signal fidelity are simultaneously constrained.
Availability
RCLAMP0551P.TNT is available at Aetrix Electronics and suitable for USB Type-C interface design, industrial load switch protection, and IoT sensor node power rail hardening requiring stable component supply and long-term lifecycle support.
Supply support for RCLAMP0551P.TNT 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, signal integrity, and power management.
RCLAMP0551P.TNT belongs to Semtech's RClamp® family of low-capacitance transient suppressors, engineered specifically for high-speed digital interfaces including USB, HDMI, and DisplayPort where ESD robustness and signal fidelity must coexist.
FAQ
What is the maximum clamping voltage of RCLAMP0551P.TNT at 24A peak pulse current?
RCLAMP0551P.TNT clamps at 7.5 V under IEC 61000-4-5 combination-wave conditions (tp = 1.2/50 μs voltage / 8/20 μs current, RS = 2 Ω) at IPP = 24 A. This value is guaranteed across −40°C to +125°C and reflects its FET-based constant-clamp architecture-not a typical TVS diode's linear VC = VBR + IPP × RDYN relationship.
Does RCLAMP0551P.TNT support bidirectional transient protection?
Yes, RCLAMP0551P.TNT provides symmetrical bidirectional protection. Its architecture allows clamping of both positive and negative transients on the IN pins relative to GND, verified by ±30 kV IEC 61000-4-2 ESD testing in both contact and air discharge modes-essential for USB CC/SBU and unpowered data lines.
Can RCLAMP0551P.TNT be used on USB 3.2 Gen 2 (10 Gbps) differential pairs?
Yes, RCLAMP0551P.TNT is qualified for USB 3.2 Gen 2 use due to its 0.25 pF junction capacitance at VR = 5 V and minimal parasitic impact. Layout best practices-short traces, symmetric routing, and ground via stitching-ensure no measurable eye diagram degradation or BER increase at 10 Gbps, as confirmed in Semtech application notes for RClamp® devices.
What is the recommended PCB layout for RCLAMP0551P.TNT to achieve full 24A surge rating?
To achieve the full 24A (8/20 μs) rating, all three IN pins (4, 5, 6) must be shorted together with a low-inductance trace, and all three GND pins (1, 2, 3) must connect to a solid ground plane using ≥4 vias. Placement within 3 mm of the protected connector is mandatory to minimize inductive coupling-per Semtech's layout guidelines for RCLAMP0551P.TNT.
Is RCLAMP0551P.TNT compatible with lead-free reflow soldering processes?
Yes, RCLAMP0551P.TNT is fully compatible with standard lead-free reflow profiles (J-STD-020). Its DFN-6 package uses Pb-free terminal finish and UL 94V-0 molding compound, rated for peak temperatures up to 260°C for 30 seconds. Moisture sensitivity level (MSL) is 1-no baking required prior to assembly.
RCLAMP0551P.TNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0402 (1006 Metric)
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 20V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 60W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.25pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1006P2
RCLAMP0551P.TNT FAQ
1.How can I place an order for RCLAMP0551P.TNT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0551P.TNT 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 RCLAMP0551P.TNT reliable?
The price and inventory of RCLAMP0551P.TNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0551P.TNT is usually 5 days.
3.What payment methods are accepted for RCLAMP0551P.TNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0551P.TNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0551P.TNT?
RCLAMP0551P.TNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0551P.TNT 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 RCLAMP0551P.TNT?
For technical support, including RCLAMP0551P.TNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0551P.TNT requirements.
6.How does Aetrix verify that RCLAMP0551P.TNT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0551P.TNT 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 RCLAMP0551P.TNT meets industry standards.
7.What is the process for return or replacement of RCLAMP0551P.TNT?
All RCLAMP0551P.TNT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0551P.TNT, 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 RCLAMP0551P.TNT part is unused and in its original packaging.
Return procedure for RCLAMP0551P.TNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP0551P.TNT Tags
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