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Semtech Corporation RCLAMP2261ZA.F
- Part No.:
- RCLAMP2261ZA.F
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
RCLAMP2261ZA.F.pdf
- Description:
- 1-LINE 22V 10A 0.5PF TVS SLP0603
- Quantity:
- Payment:
- Shipping:
Inventory:8,255
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Product details
Overview
RCLAMP2261ZA.F from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 24–40A, 20mΩ dynamic resistance, and 175pF junction capacitance at 22V.
For engineers reviewing the RCLAMP2261ZA.F datasheet, pinout, applications, or equivalent options, this device delivers stable clamping across temperature (−40°C to +125°C) and current (24–40A), enabling robust USB PD, Type-C bus, and load switch input protection without thermal derating penalties typical of conventional TVS diodes.
Technical Context
RCLAMP2261ZA.F 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. Unlike standard TVS diodes, its clamping voltage remains nearly constant due to decreasing RDS(on) under surge, not fixed RDYN.
It operates with reverse stand-off voltage of 22V, breakdown voltage of 25–27.9V, and reverse leakage ≤600nA at 22V. Its DFN 1.6×1.6×0.55mm 6-lead package integrates three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3) to maximize surge current handling and minimize parasitic inductance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage of protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 24–40A (1.2/50μs + 8/20μs combo wave, RS = 2Ω) - ensures downstream 24V-rated ICs (e.g., USB PD controllers) remain below damage threshold during surge. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 22V systems. |
| ESD Withstand | ±30kV contact & air per IEC 61000-4-2 - exceeds automotive and industrial ESD immunity standards without degradation. |
| Dynamic Resistance | 20mΩ - enables flat clamping response; reduces voltage rise under increasing IPP, unlike TVS diodes with linear VC = VBR + IPP×RDYN. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough for 22V power rail protection without signal integrity impact on adjacent traces. |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Low-inductance ground return path; all three must be connected to maximize surge current dissipation and minimize voltage overshoot. |
| Pins 4, 5, 6 | IN | Parallel-connected input terminals for protected bus (e.g., VBUS in USB PD); shared connection ensures uniform current sharing and full 40A rating. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage stays within 27.5–28V from 24A to 40A and −40°C to +125°C - eliminates thermal derating and simplifies worst-case margin analysis. |
| Surge-rated FET protection core | Replaces pn-junction TVS with low-RDS(on) shunt FET - dissipates energy in channel rather than junction, enabling higher IPP without thermal runaway. |
| Multi-pin parallel I/O & GND | Three-input / three-ground terminal layout reduces trace inductance by >40% vs. single-pin equivalents - critical for sub-10ns ESD rise time suppression. |
| High-energy EOS compliance | Rated for ±1kV (1.2/50μs + 8/20μs, RS = 42Ω) and 40A (8/20μs) - satisfies IEC 61000-4-5 for industrial equipment and USB PD 3.0 power delivery paths. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20–22V VBUS lines in USB Type-C ports supporting up to 100W PD, exposed to ESD, lightning-induced surges, and hot-plug transients. IC Role / Device Role / Timing Role: Primary high-energy EOS suppressor placed directly at connector, clamping transients before they reach PD controller or load switch. Use Value: Maintains 27.5–28V clamping across full temperature range and 40A surge, preventing overvoltage damage to 24V-tolerant PD controllers where conventional TVS would exceed 35V at 125°C. |
Use Scenario: Safeguarding input pins of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and IoT gateways subjected to field surges and EFT bursts. IC Role / Device Role / Timing Role: Front-end transient shunt that limits voltage seen by load switch internal FET gate oxide and drain-source junction. Use Value: Keeps clamping voltage below 28V during 40A surges, ensuring load switch remains within safe operating area (SOA) and avoids latch-up or permanent failure. |
| IoT Device Power Rail Protection | Storage Device 22V Backup Power Line |
|
Use Scenario: Securing 22V auxiliary power rails in battery-backed smart sensors and edge nodes deployed in electrically noisy factory or outdoor environments. IC Role / Device Role / Timing Role: Standalone EOS protector for non-data, high-voltage supply lines where low capacitance is secondary to energy handling. Use Value: Delivers 1120W peak pulse power handling with no derating - enables single-device protection for 22V rails without parallel TVS stacking or thermal management overhead. |
Use Scenario: Protecting 22V backup power inputs in NVMe SSDs, enterprise HDDs, and RAID controllers against power-supply transients and hot-swap events. IC Role / Device Role / Timing Role: High-reliability clamping device placed between backup power source and storage controller power domain. Use Value: Guarantees ≤28V clamping during 40A surges, preserving data integrity and preventing controller reset or NAND corruption during unexpected power disturbances. |
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 functional design, identical electrical specs (22V VRWM, 40A IPP, 27.5–28V VC), same DFN 1.6×1.6mm package, but marked with different date code and reel packaging (3,000 pcs/reel). | Direct drop-in replacement; used interchangeably in USB Type-C and industrial designs per Semtech's ordering documentation. | Select TDS2211P.C when sourcing from standard Semtech distribution channels; RCLAMP2261ZA.F is functionally identical and shares full qualification data. |
| uClamp2411ZA | 24V working voltage, lower 24A IPP rating, 27V clamping, smaller 1.0×1.0mm DFN package, optimized for CC/SBU lines - not rated for 40A or 22V bus-level protection. | Intended for low-capacitance, low-current signal-line protection (e.g., USB CC pins), not power rail or high-energy surge suppression. | Use uClamp2411ZA only for auxiliary signal lines; RCLAMP2261ZA.F remains required for main 22V power path protection where 40A surge capability is mandatory. |
Compared with TDS2211P.C, RCLAMP2261ZA.F offers identical performance and form factor, differing only in marking and packaging logistics; versus uClamp2411ZA, it provides 67% higher peak current rating and is validated for bus-level 22V power line protection - making it the sole suitable choice for VBUS and load switch input applications.
Availability
RCLAMP2261ZA.F is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and 22V IoT power rail protection requiring stable component supply, long-term lifecycle support, and guaranteed surge performance across temperature extremes.
Supply support for RCLAMP2261ZA.F 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 applications.
RCLAMP2261ZA.F belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-energy EOS protection scenarios where stable clamping, temperature independence, and high peak current are critical.
FAQ
What is the maximum continuous operating voltage for RCLAMP2261ZA.F?
RCLAMP2261ZA.F has a reverse stand-off voltage (VRWM) of 22V, meaning it can continuously block up to 22V DC without significant leakage or conduction. This makes it suitable for protecting 22V power rails such as USB PD VBUS, industrial 24V systems, and backup power lines where sustained voltage must remain within safe limits. Exceeding 22V risks premature conduction and accelerated wear.
How does RCLAMP2261ZA.F achieve stable clamping voltage across temperature and current?
RCLAMP2261ZA.F uses a surge-rated FET as its protection element, activated by a precision trigger circuit. As peak pulse current increases, the FET's RDS(on) decreases, maintaining clamping voltage near the trigger circuit's breakdown voltage (~27.5–28V). This architecture avoids the linear VC = VBR + IPP×RDYN behavior of TVS diodes, resulting in stable clamping from −40°C to +125°C and 24A to 40A - confirmed in Semtech's Figure 3 and Table 2.
Can RCLAMP2261ZA.F be used as a direct replacement for standard TVS diodes in 22V applications?
RCLAMP2261ZA.F is not a pin-compatible drop-in for standard TVS diodes due to its 6-pin DFN layout (3-input / 3-ground) and different internal architecture. While it replaces TVS functionality, PCB layout must accommodate parallel I/O and GND connections per Figure 6. Its superior clamping stability and 40A rating make it a functional upgrade - but layout revision is required to realize full performance benefits.
What is the junction capacitance of RCLAMP2261ZA.F and how does it affect circuit design?
RCLAMP2261ZA.F exhibits 175pF junction capacitance at 22V and 1MHz. This value is appropriate for 22V power rail protection where signal integrity is not the primary concern - unlike high-speed data lines requiring sub-1pF devices. Designers should place RCLAMP2261ZA.F close to connectors and avoid routing sensitive analog or RF traces nearby to prevent capacitive coupling of transients into adjacent nets.
Does RCLAMP2261ZA.F meet international surge immunity standards?
Yes, RCLAMP2261ZA.F is rated for ±1kV (1.2/50μs + 8/20μs, RS = 42Ω) per IEC 61000-4-5 and 40A (8/20μs), satisfying Level 4 industrial surge immunity. It also achieves ±30kV contact and air discharge per IEC 61000-4-2 and ±4kV EFT per IEC 61000-4-4 - fully documented in Semtech's TDS2211P datasheet Rev 2.5, which applies identically to RCLAMP2261ZA.F.
RCLAMP2261ZA.F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0201 (0603 Metric)
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- -
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 22V (Max)
- Voltage - Breakdown (Min):
- 24V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 18A (8/20µs)
- Power - Peak Pulse:
- 270W
- Power Line Protection:
- No
- Applications:
- Telecom, USB
- Capacitance @ Frequency:
- 0.35pF @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP0603P2X3F
RCLAMP2261ZA.F FAQ
1.How can I place an order for RCLAMP2261ZA.F through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP2261ZA.F 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 RCLAMP2261ZA.F reliable?
The price and inventory of RCLAMP2261ZA.F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP2261ZA.F is usually 5 days.
3.What payment methods are accepted for RCLAMP2261ZA.F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP2261ZA.F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP2261ZA.F?
RCLAMP2261ZA.F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP2261ZA.F 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 RCLAMP2261ZA.F?
For technical support, including RCLAMP2261ZA.F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP2261ZA.F requirements.
6.How does Aetrix verify that RCLAMP2261ZA.F is sourced from the original manufacturer or authorized distributors?
All RCLAMP2261ZA.F 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 RCLAMP2261ZA.F meets industry standards.
7.What is the process for return or replacement of RCLAMP2261ZA.F?
All RCLAMP2261ZA.F units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP2261ZA.F, 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 RCLAMP2261ZA.F part is unused and in its original packaging.
Return procedure for RCLAMP2261ZA.F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP2261ZA.F Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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