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Semtech Corporation RCLAMP0521Z.TNT
- Part No.:
- RCLAMP0521Z.TNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
RCLAMP0521Z.TNT.pdf
- Description:
- TVS DIODE 5VWM 25VC SLP0603P2X3
- Quantity:
- Payment:
- Shipping:
Inventory:3,061
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Product details
Overview
RCLAMP0521Z.TNT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of 22V-rated I/O or power lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and stable 27.5–28V clamping across temperature and current range - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the RCLAMP0521Z.TNT datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (DFN-6, 1.6×1.6mm), terminal roles (IN/GND), clamping stability data, real-world USB PD and load switch use cases, and two validated alternative parts with documented functional and application-level differences.
Technical Context
RCLAMP0521Z.TNT implements a surge-rated FET-based shunt architecture triggered by a precision voltage reference circuit, enabling near-constant clamping voltage independent of peak pulse current (24–40A) and operating temperature (−40°C to +125°C). Its dynamic resistance is 20mΩ, significantly lower than conventional TVS diodes.
The device protects one unidirectional line with 22V working voltage (VRWM), 27.9V typical breakdown (VBR), and 175pF junction capacitance at 22V/1MHz - optimized for low-voltage transients while maintaining robust 1120W peak pulse power handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 22V - defines maximum continuous DC or RMS operating voltage on protected line without leakage or conduction. |
| Clamping Voltage (VC) | 27.5–28V at 40A (8/20μs) - ensures downstream 24V-rated ICs (e.g., USB PD controllers) remain below damage threshold during surge events. |
| Peak Pulse Current (IPP) | 40A (8/20μs) - supports compliance with IEC 61000-4-5 Level 4 (±1kV, RS=42Ω) on 22V bus systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds industrial and consumer ESD immunity requirements without derating. |
| Junction Capacitance (CJ) | 175pF at 22V/1MHz - low enough for 22V power rail protection but not suitable for high-speed data lines (e.g., USB SS). |
| Dynamic Resistance (RDYN) | 20mΩ - enables flat clamping curve; reduces voltage overshoot under fast-rising surges compared to TVS diodes. |
Pinout & Package
Package: DFN-6, 1.6mm × 1.6mm × 0.55mm, RoHS-compliant, UL 94V-0 molding compound, lead-free finish, tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to maximize current sharing and minimize parasitic inductance. |
| Pins 4, 5, 6 | IN | Protected line input (anode-side connection); all three pins are internally tied and must be bonded together to the protected bus for full 40A rating. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Enables constant clamping voltage across 24–40A and −40°C to +125°C - eliminates thermal runaway risk seen in silicon avalanche TVS devices. |
| Low dynamic resistance (20mΩ) | Reduces voltage overshoot during sub-microsecond transients, improving margin for 24V-rated load switches and PMICs. |
| High-energy surge rating (1120W) | Supports repeated exposure to IEC 61000-4-5 8/20μs surges without degradation - critical for industrial equipment field reliability. |
| Ultra-low leakage (≤600nA @ 22V) | Minimizes standby power loss in battery-backed IoT and portable applications where input rail integrity is essential. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Front-End Protection |
|---|---|
Use Scenario: Protecting VBUS lines in USB Type-C ports supporting up to 20V/5A PD negotiation, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed directly at connector, clamping transients before they reach PD controller and buck converter. Use Value: Maintains 27.5–28V clamping across temperature - avoids overvoltage damage to 24V-rated PD controllers even at 125°C ambient. |
Use Scenario: Shielding enable and input rails of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation. IC Role / Device Role / Timing Role: High-current transient diverter placed between connector and load switch VIN/EN pins to prevent gate oxide rupture and FET failure. Use Value: Limits clamping voltage to ≤28V, staying well below 30V absolute max ratings of common load switches - extends field lifetime under repetitive surge stress. |
| IoT Device Power Rail Protection | Storage Device 22V Bus Protection |
Use Scenario: Securing 22V auxiliary power inputs in battery-powered edge sensors and wireless gateways subject to ESD and EFT. IC Role / Device Role / Timing Role: Standalone EOS protector on main DC input, operating in parallel with upstream fuse and downstream LDO. Use Value: 130–600nA reverse leakage at 22V preserves battery life; ±4kV EFT immunity (IEC 61000-4-4) prevents firmware lockup in noisy environments. |
Use Scenario: Safeguarding 22V supply rails in NVMe SSD enclosures and enterprise storage backplanes exposed to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Board-level surge guard mounted adjacent to power connector, coordinating with system-level TVS arrays. Use Value: 40A peak pulse rating handles worst-case hot-swap energy; DFN-6 footprint saves space vs. legacy SOT-23-6 solutions without sacrificing performance. |
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 | Identical electrical specs, same DFN-6 package, identical pinout and marking code (T22), but ordered in 3,000-unit 7″ reels - direct manufacturing variant of RCLAMP0521Z.TNT. | Same USB PD, load switch, and industrial 22V rail use cases; validated in Semtech's reference designs for Type-C protection. | Select TDS2211P.C when sourcing full reels for production; RCLAMP0521Z.TNT is the same die in alternate packaging or distribution channel. |
| uClamp2411ZA.TCT | 24V VRWM, ±30kV ESD, 24A IPP (8/20μs), 27V clamping, SOD-323 package - lower surge rating and smaller footprint, no multi-pin parallel IN/GND terminals. | Suitable for CC/SBU lines in USB Type-C or low-power 24V sensor inputs; insufficient for 40A load switch protection due to lower IPP and single-pin construction. | Choose uClamp2411ZA.TCT only for space-constrained, lower-energy applications where 24A IPP suffices and DFN-6 layout isn't feasible. |
Compared with RCLAMP0521Z.TNT, TDS2211P.C offers identical performance and form factor for volume production, while uClamp2411ZA.TCT provides a compact alternative for lower-current signal-line protection - neither replaces RCLAMP0521Z.TNT in 40A-capable 22V power rail applications without design revalidation.
Availability
RCLAMP0521Z.TNT is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and IoT 22V power rail protection requiring stable component supply, long-term lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for RCLAMP0521Z.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 high-performance analog and mixed-signal ICs for precision sensing, protection, and connectivity.
RCLAMP0521Z.TNT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 20–24V power and interface protection with superior clamping stability and surge endurance.
FAQ
What is the primary circuit role of RCLAMP0521Z.TNT in a USB Type-C PD design?
RCLAMP0521Z.TNT serves as the front-end transient suppressor on the VBUS line, clamping ESD and surge events to ≤28V to protect downstream PD controllers, buck converters, and load switches rated for 24V maximum. Its FET-based architecture ensures this clamping remains stable across temperature and current - a key advantage over standard TVS diodes in USB PD applications.
Does RCLAMP0521Z.TNT require external biasing or control signals to operate?
No, RCLAMP0521Z.TNT is a fully passive, self-triggering device. It requires no external power, bias, or control signals. The internal precision trigger circuit activates the shunt FET automatically when transient voltage exceeds the breakdown threshold - making RCLAMP0521Z.TNT drop-in compatible with existing PCB layouts designed for TVS diodes.
Can RCLAMP0521Z.TNT be used on high-speed data lines like USB SuperSpeed or PCIe?
No, RCLAMP0521Z.TNT is not suitable for high-speed data lines. Its 175pF junction capacitance at 22V would severely degrade signal integrity on differential pairs operating above 100MHz. For USB SS, DP/DM, or PCIe lanes, Semtech recommends low-capacitance alternatives like RClamp3371ZC (<0.25pF), which are specifically designed for signal-line protection.
What is the maximum continuous operating temperature for RCLAMP0521Z.TNT?
RCLAMP0521Z.TNT is rated for continuous operation from −40°C to +125°C ambient temperature. Its clamping voltage remains stable across this full range - unlike conventional TVS diodes, whose clamping rises with temperature. This makes RCLAMP0521Z.TNT especially valuable in thermally demanding industrial and automotive under-hood applications.
How does the pin configuration of RCLAMP0521Z.TNT improve surge handling versus single-pin TVS devices?
RCLAMP0521Z.TNT uses three parallel IN pins (4,5,6) and three parallel GND pins (1,2,3) to reduce bond wire and trace inductance, enabling uniform current sharing and full 40A surge capability. Single-pin TVS devices cannot achieve equivalent current handling without significant layout compromises - making RCLAMP0521Z.TNT more effective in high-energy industrial and USB PD applications.
RCLAMP0521Z.TNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0201 (0603 Metric)
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 25V
- Current - Peak Pulse (10/1000µs):
- 4A (8/20µs)
- Power - Peak Pulse:
- 100W
- Power Line Protection:
- No
- Applications:
- HDMI
- Capacitance @ Frequency:
- 0.35pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP0603P2X3
RCLAMP0521Z.TNT FAQ
1.How can I place an order for RCLAMP0521Z.TNT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0521Z.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 RCLAMP0521Z.TNT reliable?
The price and inventory of RCLAMP0521Z.TNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0521Z.TNT is usually 5 days.
3.What payment methods are accepted for RCLAMP0521Z.TNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0521Z.TNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0521Z.TNT?
RCLAMP0521Z.TNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0521Z.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 RCLAMP0521Z.TNT?
For technical support, including RCLAMP0521Z.TNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0521Z.TNT requirements.
6.How does Aetrix verify that RCLAMP0521Z.TNT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0521Z.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 RCLAMP0521Z.TNT meets industry standards.
7.What is the process for return or replacement of RCLAMP0521Z.TNT?
All RCLAMP0521Z.TNT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0521Z.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 RCLAMP0521Z.TNT part is unused and in its original packaging.
Return procedure for RCLAMP0521Z.TNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP0521Z.TNT Tags
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