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Semtech Corporation RCLAMP0552T.TNT
- Part No.:
- RCLAMP0552T.TNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 3-XDFN
- Datasheet:
-
RCLAMP0552T.TNT.pdf
- Description:
- TVS DIODE 5VWM 20VC SLP1006N3T
- Quantity:
- Payment:
- Shipping:
Inventory:13,243
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Product details
Overview
RCLAMP0552T.TNT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated I/O or power lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, 20mΩ dynamic resistance, and 175pF junction capacitance - deployed in USB Type-C PD input protection and industrial load switch inputs.
For engineers reviewing the RCLAMP0552T.TNT datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, real-world clamping stability across temperature and current, and direct alternatives for 22V bus protection in USB PD and IoT systems.
Technical Context
RCLAMP0552T.TNT 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 (27.5–28V) across 24–40A IPP and −40°C to +125°C due to decreasing RDS(on) under surge.
The device protects one unidirectional line with reverse stand-off voltage of 22V, breakdown voltage of 25–27.9V, and low leakage (≤600nA at 22V). Its functional architecture separates trigger and conduction paths, enabling stable clamping independent of ambient temperature - critical for USB PD controllers operating near thermal limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal USB PD bus voltage and avoids false triggering during normal operation. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo waveform) - stays below 28V across full rated current, protecting 24–30V-rated downstream ICs. |
| ESD Rating | ±30kV contact & air per IEC 61000-4-2 - exceeds industrial and consumer ESD immunity requirements without derating. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment interfaces. |
| Dynamic Resistance | 20mΩ - ensures minimal voltage rise under surge, enabling predictable clamping behavior vs. TVS diodes with fixed RDYN. |
| Junction Capacitance | 175pF at 22V, 1MHz - suitable for DC/low-speed power and control lines; not intended for high-speed data lanes. |
| Operating Temp | −40°C to +125°C - supports extended-temperature industrial and automotive under-hood applications. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish. Pin 1 marked with laser dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three pins must be connected to maximize current handling and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS in USB PD); parallel connection ensures uniform current sharing and optimal clamping performance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V from 24A to 40A - eliminates need for over-spec'ing IPP to meet voltage thresholds. |
| Temperature-stable protection | Clamping holds at ~27.6V from −40°C to +125°C - removes thermal derating calculations required for standard TVS devices. |
| Low dynamic resistance | 20mΩ enables efficient energy diversion with minimal IR drop - reduces localized heating and improves reliability under repeated surges. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - sustains multiple 40A transients without degradation in industrial environments. |
| Compact footprint | 1.6mm × 1.6mm DFN saves >50% board area vs. SOT-23 or SOIC TVS solutions - critical for space-constrained USB-C connectors and IoT modules. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting the VBUS line of a USB Type-C port supporting up to 20V/5A PD negotiation against lightning-induced surges and connector ESD events. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at the connector, shunting surge current to ground before it reaches the PD controller or load switch. Use Value: Maintains clamping at ≤28V across temperature and current - prevents damage to 30V-max PD controllers (e.g., TUSB73x, STUSB4500) where standard TVS would exceed safe thresholds at elevated temperatures. |
Use Scenario: Safeguarding the input of an industrial-grade load switch (e.g., ON Semiconductor NIS513x, TI TPS229xx) exposed to 40A surges in remote metering or robotics power rails. IC Role / Device Role / Timing Role: Primary front-end EOS protector, absorbing transient energy before it stresses the internal MOSFET gate oxide or drain-source junction. Use Value: 20mΩ dynamic resistance limits voltage overshoot to <28V even at 40A - keeps stress below the 30–35V absolute maximum rating of typical 28V-rated load switches. |
| IoT Device DC Power Input Protection | Storage Device 22V Backup Rail Protection |
|
Use Scenario: Securing the 22V auxiliary power input of a battery-backed smart sensor node subjected to EFT bursts and cable discharge events in factory automation settings. IC Role / Device Role / Timing Role: Single-line transient suppressor on the main DC input rail, coordinated with upstream fuse and downstream LDO. Use Value: ±4kV EFT immunity (IEC 61000-4-4) and stable clamping ensure uninterrupted operation during repetitive 5/50ns bursts - critical for edge AI inference nodes requiring uptime. |
Use Scenario: Protecting the 22V backup supply rail of an NVMe SSD enclosure or RAID controller during hot-plug insertion or power sequencing faults. IC Role / Device Role / Timing Role: Standby rail protector placed between bulk capacitor and backup regulator, preventing latch-up or overvoltage shutdown. Use Value: 175pF capacitance avoids signal integrity issues on low-frequency backup rails, while 22V VRWM ensures no leakage or loading during normal 22V standby operation. |
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 | Same die, identical electrical specs, same DFN-6 package - differs only in tape-and-reel packaging (3,000 pcs/reel vs. RCLAMP0552T.TNT's unspecified quantity). | Drop-in replacement for volume production; same PCB layout, thermal profile, and test conditions. | Select TDS2211P.C for automated SMT assembly requiring standard reel packaging and traceability. |
| uClamp2411ZA.TCT | 24V working voltage, lower 24A IPP rating, higher 32V clamping at 24A, smaller 1.0mm × 0.6mm DFN-2 package - optimized for CC/SBU lines, not power rails. | Not suitable for 22V VBUS protection; intended for low-capacitance, low-current signaling lines in USB-C. | Choose uClamp2411ZA.TCT only for CC/SBU or low-power auxiliary lines - never as substitute for RCLAMP0552T.TNT on main power rails. |
Compared with TDS2211P.C (identical function, packaging variant) and uClamp2411ZA.TCT (lower-voltage, lower-current, different application scope), RCLAMP0552T.TNT is uniquely specified for robust 22V power-line protection with guaranteed 40A surge handling and sub-28V clamping - making it the sole fit for USB PD VBUS and industrial 22V input stages.
Availability
RCLAMP0552T.TNT is available at Aetrix Electronics and suitable for USB Type-C PD implementations, industrial load switch inputs, and IoT 22V power rail protection requiring stable component supply, long-term lifecycle support, and consistent surge performance across temperature extremes.
Supply support for RCLAMP0552T.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 sensing, power management, and transient protection - with leadership in high-reliability EOS suppression technology.
RCLAMP0552T.TNT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-energy, temperature-critical 22V power-line protection applications where clamping stability is non-negotiable.
FAQ
What is the exact clamping voltage of RCLAMP0552T.TNT at 40A surge current?
RCLAMP0552T.TNT clamps at 27.6–28V under IEC 61000-4-5 combination waveform (1.2/50μs voltage + 8/20μs current, RS = 2Ω) at 40A peak pulse current. This value is guaranteed across −40°C to +125°C and reflects the device's constant-clamp architecture using a surge-rated FET, not a conventional TVS diode.
Is RCLAMP0552T.TNT pin-compatible with TDS2211P.C?
Yes - RCLAMP0552T.TNT and TDS2211P.C share identical DFN-6 pinout (pins 1–3 = GND, pins 4–6 = IN), mechanical dimensions (1.6mm × 1.6mm × 0.55mm), and electrical specifications. The only difference is packaging format: RCLAMP0552T.TNT is supplied in tape-and-reel per customer-specific quantity, while TDS2211P.C is standardized at 3,000 units per 7-inch reel.
Can RCLAMP0552T.TNT be used on high-speed USB SuperSpeed differential pairs?
No - RCLAMP0552T.TNT has 175pF junction capacitance, which would severely degrade signal integrity on USB 3.x/PCIe Gen2+ differential lanes. It is intended exclusively for DC power lines (e.g., VBUS) or low-speed control signals. For SuperSpeed lines, Semtech recommends RClamp3371ZC (<0.25pF) instead of RCLAMP0552T.TNT.
Does RCLAMP0552T.TNT require a thermal pad or heatsink on the PCB?
No - RCLAMP0552T.TNT dissipates surge energy primarily through conduction, not junction heating, and does not require a thermal pad. Per Semtech's layout guidelines, the device relies on low-inductance grounding via all three GND pins (1, 2, 3) and direct routing to the ground plane using multiple vias - not thermal mass.
What is the maximum continuous reverse leakage current of RCLAMP0552T.TNT at 22V?
RCLAMP0552T.TNT exhibits a maximum reverse leakage current of 600nA at VRWM = 22V and TA = 25°C, with typical values around 130nA. Leakage remains within specification across the full operating temperature range (−40°C to +125°C), ensuring minimal standby power loss in always-on IoT and storage applications.
RCLAMP0552T.TNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 3-XDFN
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 20V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 60W
- Power Line Protection:
- No
- Applications:
- HDMI
- Capacitance @ Frequency:
- 0.21pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1006N3T
RCLAMP0552T.TNT FAQ
1.How can I place an order for RCLAMP0552T.TNT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0552T.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 RCLAMP0552T.TNT reliable?
The price and inventory of RCLAMP0552T.TNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0552T.TNT is usually 5 days.
3.What payment methods are accepted for RCLAMP0552T.TNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0552T.TNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0552T.TNT?
RCLAMP0552T.TNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0552T.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 RCLAMP0552T.TNT?
For technical support, including RCLAMP0552T.TNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0552T.TNT requirements.
6.How does Aetrix verify that RCLAMP0552T.TNT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0552T.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 RCLAMP0552T.TNT meets industry standards.
7.What is the process for return or replacement of RCLAMP0552T.TNT?
All RCLAMP0552T.TNT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0552T.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 RCLAMP0552T.TNT part is unused and in its original packaging.
Return procedure for RCLAMP0552T.TNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP0552T.TNT Tags
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