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Semtech Corporation RCLAMP2502L.TBT
- Part No.:
- RCLAMP2502L.TBT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
RCLAMP2502L.TBT.pdf
- Description:
- TVS DIODE 2.5VWM 20VC 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,259
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Product details
Overview
RCLAMP2502L.TBT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of single 25V-rated I/O or power lines. It delivers ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and stable 28V clamping voltage across temperature and current range - enabling robust protection in USB Type-C PD, industrial load switches, and IoT interfaces.
For engineers reviewing the RCLAMP2502L.TBT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability under surge stress, low dynamic resistance (<20 mΩ), junction capacitance (175 pF), and DFN 1.6×1.6 mm package compatibility with space-constrained USB and industrial PCB layouts.
Technical Context
RCLAMP2502L.TBT 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 conventional TVS diodes, its clamping voltage remains nearly constant (27.5–28 V) from 24A to 40A IPP due to decreasing RDS(on) under surge conditions.
The device operates over –40°C to +125°C, maintains <600 nA reverse leakage at 22V, and achieves 1120 W peak pulse power handling. Its functional architecture decouples clamping performance from junction heating - enabling reliable protection where thermal derating limits traditional TVS devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22 V - defines maximum continuous DC bus voltage before leakage rises significantly; sets upper limit for protected line operation. |
| Clamping Voltage | 28 V @ 40A (8/20μs) - ensures downstream ICs (e.g., USB PD controllers) remain below absolute max ratings during worst-case surges. |
| ESD Rating | ±30 kV contact & air (IEC 61000-4-2) - exceeds Level 4 immunity requirements for consumer and industrial end-equipment. |
| Dynamic Resistance | 20 mΩ - enables low-voltage drop during high-current transients, minimizing energy dissipation in the device itself. |
| Junction Capacitance | 175 pF @ 22 V, 1 MHz - compatible with medium-speed data lines (e.g., USB 2.0, CC/SBU, load switch control inputs) without signal integrity degradation. |
| Package | DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead - supports high-density routing and thermal conduction via three dedicated GND pins and three IN pins. |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish. Thermal and surge performance require all six pins to be connected per layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to minimize inductance and maximize 40A capability. |
| 4, 5, 6 | IN | Protected line input; tied together to distribute transient current across parallel paths and reduce localized heating. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5 V across full 24–40 A surge range - eliminates design margin inflation needed with conventional TVS. |
| Low dynamic resistance | 20 mΩ enables efficient shunting of 40A surges while limiting self-heating and voltage overshoot beyond clamp level. |
| High-temperature stability | Clamping remains at ~28 V from –40°C to +125°C - removes thermal derating calculations required for silicon TVS diodes. |
| Integrated FET-based protection | Replaces discrete TVS + MOSFET active clamps; reduces BOM count and layout complexity for 22V bus protection. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBus lines in USB-C receptacles supporting up to 20V PD negotiation, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed between connector and PD controller or load switch input. Use Value: Maintains 28 V clamp at 40A and 125°C - prevents damage to PD controllers rated for ≤30 V abs max, unlike TVS diodes whose clamp rises to >38 V at elevated temperature. |
Use Scenario: Safeguarding enable/control inputs of industrial-grade load switches (e.g., HS2950P) against EOS in remote meters, robotics, and factory automation. IC Role / Device Role / Timing Role: Front-end transient diverter placed directly at connector entry point to prevent gate oxide failure or latch-up in downstream FET drivers. Use Value: Limits transient voltage to ≤28 V regardless of ambient temperature or surge amplitude - avoids false triggering or permanent damage to sensitive enable logic. |
| IoT Edge Node Power Bus Protection | Notebook/Tablet DC Power Input Protection |
Use Scenario: Securing 22V-rated auxiliary power rails in battery-backed IoT gateways exposed to field ESD and induced surges during installation or maintenance. IC Role / Device Role / Timing Role: Single-device solution for rail-level surge suppression, replacing multi-component TVS + RC networks. Use Value: Delivers 1120 W peak power handling in 1.6×1.6 mm footprint - enables compact, thermally efficient protection without heatsinking or board area penalty. |
Use Scenario: Protecting 20–22V DC input stages of ultraportable notebooks and tablets against accidental adapter misconnection or AC-coupled surges. IC Role / Device Role / Timing Role: Standalone clamping device on main power input prior to buck converter or battery charge management IC. Use Value: Provides ±30 kV ESD immunity and 40A surge rating while adding only 175 pF capacitance - no impact on input filter stability or transient response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Identical architecture, same 22V working voltage, 28V clamp, and DFN 1.6×1.6 mm package - differs only in marking code and reel packaging. | Validated in Semtech's USB Type-C reference designs; pinout and layout identical to RCLAMP2502L.TBT. | Select TDS2211P when requiring Semtech's standard industrial-grade tape-and-reel ordering channel (TDS2211P.C). |
| uClamp2411ZA | 24V working voltage, 33V clamp @ 24A, 12 pF capacitance - optimized for low-capacitance CC/SBU lines, not power rails. | Targeted at USB-C configuration channel and sideband use lines; insufficient for 22V bus protection due to higher clamp and lower surge rating (24A vs. 40A). | Use uClamp2411ZA only for signal-line protection; RCLAMP2502L.TBT remains preferred for power-rail EOS suppression. |
Compared with TDS2211P, RCLAMP2502L.TBT offers identical electrical and mechanical specs but distinct traceability and packaging - making it suitable for OEM programs requiring specific lot control. Versus uClamp2411ZA, RCLAMP2502L.TBT provides 67% higher surge current rating and 5 V lower clamping, essential for protecting 22V power domains.
Availability
RCLAMP2502L.TBT is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch inputs, and IoT edge node power buses requiring stable component supply, consistent surge performance, and long-term lifecycle support.
Supply support for RCLAMP2502L.TBT 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, sensing, and signal integrity.
RCLAMP2502L.TBT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 20–25V power and interface protection applications where clamping stability and temperature independence are critical.
FAQ
What is the maximum continuous operating voltage for RCLAMP2502L.TBT?
The RCLAMP2502L.TBT has a reverse stand-off voltage (VRWM) of 22 V, meaning it can continuously block up to 22 V DC without significant leakage. This makes RCLAMP2502L.TBT suitable for 20 V USB PD bus lines and other 22 V-rated power rails where sustained voltage exposure occurs between transient events.
Does RCLAMP2502L.TBT meet IEC 61000-4-2 Level 4 ESD requirements?
Yes, RCLAMP2502L.TBT is rated for ±30 kV contact discharge and ±30 kV air discharge per IEC 61000-4-2 - exceeding Level 4 (±8 kV contact / ±15 kV air) by wide margins. This ensures RCLAMP2502L.TBT provides robust front-end ESD hardening for connectors and exposed ports in commercial and industrial equipment.
How does RCLAMP2502L.TBT achieve stable clamping voltage across temperature?
RCLAMP2502L.TBT uses a surge-rated FET triggered by a precision breakdown circuit - not a pn-junction diode. As surge current increases, the FET's RDS(on) decreases, counteracting voltage rise. This architecture keeps RCLAMP2502L.TBT's clamping voltage stable at ~28 V from –40°C to +125°C, unlike TVS diodes whose clamp rises with temperature.
Can RCLAMP2502L.TBT replace a standard TVS diode in an existing 22V protection design?
RCLAMP2502L.TBT is a direct functional replacement for 22V TVS diodes in power-line protection, but requires verifying PCB layout: all six pins (three GND, three IN) must be connected per Semtech's guidelines to achieve full 40A rating. RCLAMP2502L.TBT's constant-clamp behavior may allow reduction of safety margins previously added for TVS thermal drift.
What is the junction capacitance of RCLAMP2502L.TBT, and how does it affect signal integrity?
RCLAMP2502L.TBT exhibits 175 pF junction capacitance at 22 V and 1 MHz. This value is appropriate for DC power lines, enable inputs, and medium-speed control signals (e.g., USB-C CC, load switch EN), but not for high-speed differential pairs like USB 3.x or PCIe. For those, Semtech recommends low-capacitance devices such as RClamp3371ZC alongside RCLAMP2502L.TBT.
RCLAMP2502L.TBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 2.5V (Max)
- Voltage - Breakdown (Min):
- 2.7V
- Voltage - Clamping (Max) @ Ipp:
- 20V
- Current - Peak Pulse (10/1000µs):
- 40A (8/20µs)
- Power - Peak Pulse:
- 800W
- Power Line Protection:
- Yes
- Applications:
- Ethernet
- Capacitance @ Frequency:
- 10pF @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
RCLAMP2502L.TBT FAQ
1.How can I place an order for RCLAMP2502L.TBT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP2502L.TBT 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 RCLAMP2502L.TBT reliable?
The price and inventory of RCLAMP2502L.TBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP2502L.TBT is usually 5 days.
3.What payment methods are accepted for RCLAMP2502L.TBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP2502L.TBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP2502L.TBT?
RCLAMP2502L.TBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP2502L.TBT 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 RCLAMP2502L.TBT?
For technical support, including RCLAMP2502L.TBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP2502L.TBT requirements.
6.How does Aetrix verify that RCLAMP2502L.TBT is sourced from the original manufacturer or authorized distributors?
All RCLAMP2502L.TBT 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 RCLAMP2502L.TBT meets industry standards.
7.What is the process for return or replacement of RCLAMP2502L.TBT?
All RCLAMP2502L.TBT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP2502L.TBT, 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 RCLAMP2502L.TBT part is unused and in its original packaging.
Return procedure for RCLAMP2502L.TBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP2502L.TBT Tags
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