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Semtech Corporation RCLAMP2261PW.C
- Part No.:
- RCLAMP2261PW.C
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
RCLAMP2261PW.C.pdf
- Description:
- 22V ESD & EOS PROTECTION
- Quantity:
- Payment:
- Shipping:
Inventory:5,050
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Product details
Overview
RCLAMP2261PW.C 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 40A, 20mΩ dynamic resistance, and 175pF junction capacitance - deployed in USB PD, USB Type-C, and industrial load switch input protection.
For engineers reviewing the RCLAMP2261PW.C datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, temperature-stable clamping behavior, and direct alternatives for 22V bus protection in high-reliability embedded and interface designs.
Technical Context
RCLAMP2261PW.C 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 across 24–40A (8/20μs) due to decreasing RDS(on) under surge conditions.
The device operates over –40°C to +125°C with stable 27.5–28V clamping at rated IPP, 22V reverse stand-off voltage, and <600nA leakage at VRWM - enabling robust protection for 22V systems where thermal drift and current-dependent voltage rise must be avoided.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - supports nominal 20V USB PD bus and withstands up to 22V continuous operation without leakage degradation. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - limits transient overvoltage to safe margin below typical 30V+ IC damage thresholds. |
| ESD Rating | ±30kV contact & air (IEC 61000-4-2) - exceeds Level 4 requirements for handheld and industrial interface ports. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 3 surge immunity for industrial equipment and USB PD inputs. |
| Dynamic Resistance | 20mΩ - ensures minimal voltage rise during high-current transients, critical for maintaining low clamping across temperature. |
| Junction Capacitance | 175pF at 22V, 1MHz - compatible with DC-coupled 22V power rails and low-speed control lines; not intended for >100MHz signal paths. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for all 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, load switch input); parallel connection of all three pins ensures uniform current sharing and optimal 40A capability. |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage | 27.5–28V across full 24–40A surge range and –40°C to +125°C - eliminates design margin uncertainty from temperature- or current-dependent voltage rise. |
| FET-based shunt architecture | Surge-rated MOSFET triggered by precision circuit - enables lower clamping than TVS diodes while dissipating energy in channel rather than junction. |
| Low dynamic resistance | 20mΩ - reduces IR drop during surge, preserving clamping stability and minimizing thermal stress on protected downstream ICs. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz) - protects against repetitive fast transients in industrial control and motor drive environments. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20V–22V VBUS lines in USB Type-C receptacles supporting Power Delivery negotiation and up to 100W power transfer. IC Role / Device Role / Timing Role: Transient diverting suppressor placed between connector and PD controller or load switch input. Use Value: Maintains 27.5–28V clamping at 40A and 125°C - prevents PD controller latch-up or gate oxide damage during lightning-induced surges. |
Use Scenario: Safeguarding enable-controlled power switches (e.g., HS2950P) in remote meters, robotics, and IoT edge nodes exposed to field-installed wiring. IC Role / Device Role / Timing Role: Primary EOS clamp on VIN input of load switch, upstream of internal FET and OVP circuitry. Use Value: Clamps transients below 30V to protect internal switch FET's absolute maximum rating, avoiding catastrophic failure during 1.2/50μs surges. |
| IoT Device DC Power Rail Protection | Storage Device 22V Backup Supply Protection |
Use Scenario: Securing 22V auxiliary power inputs in battery-backed smart sensors and gateway modules operating in electrically noisy environments. IC Role / Device Role / Timing Role: Standalone transient suppressor on main DC input rail, before DC-DC converters and microcontroller power domains. Use Value: Delivers ±30kV ESD immunity and 40A surge handling without derating - ensures field reliability in unattended deployments. |
Use Scenario: Protecting 22V backup battery or supercapacitor supply lines in enterprise SSDs and NVMe storage controllers. IC Role / Device Role / Timing Role: EOS guard on backup power input to prevent transient-induced data corruption or controller reset during hot-swap events. Use Value: Stable 27.5–28V clamping preserves voltage integrity across temperature extremes, preventing false brown-out detection in storage firmware. |
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 marking and reel packaging - confirmed direct replacement per Semtech ordering documentation. | No functional difference; used interchangeably in USB PD and load switch designs per Semtech application note AN-1285. | Select when sourcing from legacy Semtech channels or requiring exact form-fit-function match with documented qualification history. |
| uClamp2411ZA.TCT | 24V working voltage, ±30kV ESD, 30A IPP, 30V clamping - higher VRWM and clamping, lower surge rating than RCLAMP2261PW.C. | Suitable for CC/SBU lines in USB Type-C where 24V tolerance avoids VBUS short damage, but insufficient for 22V VBUS or load switch inputs. | Choose only for auxiliary signal lines; not recommended for primary 22V power rail protection due to 30V clamping and 30A limit. |
Compared with TDS2211P.C and uClamp2411ZA.TCT, RCLAMP2261PW.C offers identical performance to TDS2211P.C in 22V bus protection while providing superior clamping stability and surge capacity versus uClamp2411ZA.TCT - making it the preferred choice for high-reliability 22V power rail applications.
Availability
RCLAMP2261PW.C is available at Aetrix Electronics and suitable for USB Type-C Power Delivery interfaces, industrial load switch inputs, and IoT device 22V DC power rails requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for RCLAMP2261PW.C 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.
RCLAMP2261PW.C belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-energy EOS protection applications demanding temperature- and current-invariant clamping behavior.
FAQ
What is the clamping voltage of RCLAMP2261PW.C at 40A surge current?
RCLAMP2261PW.C clamps at 27.5–28V under 40A peak pulse current (8/20μs waveform, 2Ω source impedance), with minimal variation across –40°C to +125°C. This stable clamping ensures protected ICs remain within safe operating voltage margins even under worst-case surge and thermal conditions.
Is RCLAMP2261PW.C pin-compatible with TDS2211P.C?
Yes, RCLAMP2261PW.C is pin-compatible with TDS2211P.C: both use the same DFN-6 (1.6mm × 1.6mm) package with identical pin 1 location, GND on pins 1–3, and IN on pins 4–6. Layouts designed for TDS2211P.C require no changes for RCLAMP2261PW.C integration.
What is the maximum operating temperature for RCLAMP2261PW.C?
RCLAMP2261PW.C is rated for continuous operation from –40°C to +125°C ambient temperature. Its clamping voltage and leakage current remain within specification across this full range, as validated in Semtech's TDS2211P datasheet Rev 2.5 Figure 3 and Table 2.
Can RCLAMP2261PW.C be used for USB SuperSpeed data line protection?
No, RCLAMP2261PW.C is not suitable for USB SuperSpeed (SS) differential pairs due to its 175pF junction capacitance, which would severely degrade signal integrity. For SS lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25pF).
Does RCLAMP2261PW.C meet IEC 61000-4-5 surge immunity standards?
Yes, RCLAMP2261PW.C meets IEC 61000-4-5 requirements with 40A peak pulse current (8/20μs) and ±1kV unsymmetrical surge (1.2/50μs, RS = 42Ω), making it appropriate for industrial equipment and USB PD systems requiring Level 3 or higher surge protection.
RCLAMP2261PW.C 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):
- 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:
- 0.34pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-DFN (1x0.6)
RCLAMP2261PW.C FAQ
1.How can I place an order for RCLAMP2261PW.C through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP2261PW.C 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 RCLAMP2261PW.C reliable?
The price and inventory of RCLAMP2261PW.C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP2261PW.C is usually 5 days.
3.What payment methods are accepted for RCLAMP2261PW.C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP2261PW.C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP2261PW.C?
RCLAMP2261PW.C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP2261PW.C 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 RCLAMP2261PW.C?
For technical support, including RCLAMP2261PW.C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP2261PW.C requirements.
6.How does Aetrix verify that RCLAMP2261PW.C is sourced from the original manufacturer or authorized distributors?
All RCLAMP2261PW.C 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 RCLAMP2261PW.C meets industry standards.
7.What is the process for return or replacement of RCLAMP2261PW.C?
All RCLAMP2261PW.C units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP2261PW.C, 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 RCLAMP2261PW.C part is unused and in its original packaging.
Return procedure for RCLAMP2261PW.C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP2261PW.C Tags
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