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Semtech Corporation RCLAMP2656P.TGT
- Part No.:
- RCLAMP2656P.TGT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
RCLAMP2656P.TGT.pdf
- Description:
- TVS DIODE 5VWM 20VC SLP2018P6
- Quantity:
- Payment:
- Shipping:
Inventory:6,393
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Product details
Overview
RCLAMP2656P.TGT from Semtech is a low-capacitance RailClamp® TVS array designed for ESD and surge protection of micro-USB (uUSB) interfaces. It integrates dedicated protection for VBus (26V), D+, D−, and ID pins (±5V operation), delivers <0.50pF capacitance on data lines, ±15kV IEC 61000-4-2 contact ESD protection, and 80A (8/20μs) surge capability on VBus - deployed in mobile phones and portable electronics.
For engineers reviewing the RCLAMP2656P.TGT datasheet, pinout, applications, or equivalent options, key selection criteria include low-clamping-voltage TVS performance on both data and power lines, sub-0.5pF signal-line loading, integrated multi-pin protection in SLP2018P6, and compliance with IEC 61000-4-2/4-4/4-5 standards.
Technical Context
The RCLAMP2656P.TGT implements silicon-avalanche TVS diodes in a monolithic array: one 26V unidirectional TVS on Pin 1 (VBus) with 80A surge rating and low clamping voltage; three bidirectional 5V TVS elements on Pins 2–4 (D+, D−, ID) each with ±15kV ESD rating and 0.90Ω dynamic resistance. All protected lines reference internal ground paths at Pins 5, 6, and thermal tabs.
Its architecture eliminates discrete protection components by consolidating VBus overvoltage clamping and high-speed data-line ESD suppression into a single 6-pin SLP2018P6 package. The design enforces strict signal integrity via <0.50pF junction capacitance and supports USB 2.0 and USB OTG protocols without signal degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBus Standoff Voltage | 26V - defines maximum continuous operating voltage before clamping on USB power line |
| Data Line Standoff Voltage | 5V - ensures no conduction during normal ±5V USB DP/DM/ID signaling |
| ESD Rating (IEC 61000-4-2) | ±15kV contact on D+/D−/ID; ±30kV contact on VBus - meets industrial-grade ESD immunity requirements |
| Surge Rating (IEC 61000-4-5) | 80A (8/20μs) on VBus - handles lightning-induced transients in portable device power rails |
| Junction Capacitance | <0.50pF on D+/D−/ID - preserves USB 2.0 signal integrity up to 480Mbps |
| Dynamic Resistance | 0.90Ω typical on D+/D−/ID - minimizes voltage overshoot during fast ESD events |
| Package | SLP2018P6 - 2.0 × 1.8 × 0.57 mm footprint enables ultra-compact uUSB port layout |
Pinout & Package
Package: SLP2018P6 - 6-pin leadless surface-mount package with dimensions 2.0 mm × 1.8 mm × 0.57 mm, NiPdAu lead finish, UL 94V-0 molding compound, and exposed thermal tabs connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | VBus | Input for USB 5V power rail; connects to 26V unidirectional TVS for overvoltage clamping |
| Pins 2, 3, 4 | D+, D−, ID | Bidirectional ±5V protected data/identification lines; each with <0.50pF capacitance and 0.90Ω dynamic resistance |
| Pins 5, 6 + Tabs | GND | Common return path for all TVS elements; multiple thermal tabs reduce ground inductance and improve clamping response |
Key Features
| Feature | Design Value |
|---|---|
| Integrated VBus + Data-Line Protection | Single-device replacement for 4+ discrete TVS diodes - reduces BOM count and PCB area in uUSB ports |
| Sub-0.5pF Signal-Line Loading | Preserves USB 2.0 eye diagram integrity and timing margins without equalization or re-timing |
| 80A VBus Surge Capability | Withstands IEC 61000-4-5 Level 4 surges without failure - critical for field-reliable portable charging circuits |
| 0.90Ω Dynamic Resistance | Minimizes transient-induced voltage overshoot on D+/D−/ID, protecting sensitive PHY receivers |
| Pb-Free / RoHS / Halogen-Free | Complies with global environmental regulations and reflow soldering profiles up to 260°C |
Applications
| Smartphone uUSB Port | Laptop USB OTG Interface |
|---|---|
Use Scenario: Protecting micro-USB receptacle on smartphone against ESD from user handling and surge from wall adapters. IC Role / Device Role / Timing Role: Primary ESD/surge suppressor for VBus, D+, D−, and ID lines - placed immediately adjacent to connector. Use Value: Prevents PHY damage and system lockup while maintaining full USB 2.0 bandwidth due to <0.50pF capacitance. | Use Scenario: Enabling reliable USB On-The-Go host/peripheral switching in ultrabooks with shared uUSB port. IC Role / Device Role / Timing Role: Bidirectional protection element supporting both host-mode (VBus sourcing) and peripheral-mode (VBus sinking) operation. Use Value: Eliminates need for external VBus switching circuitry by integrating 26V clamping and ±5V data-line protection in one package. |
| Tablet Charging Circuit | USB-C Adapter Negotiation Path |
Use Scenario: Safeguarding tablet's uUSB port during fast-charging events where VBus may experience 20V+ transients. IC Role / Device Role / Timing Role: High-energy surge limiter on VBus line; clamps 80A (8/20μs) transients to safe levels below SoC input tolerance. Use Value: Enables robust 5V–12V adaptive charging without derating or additional filtering components. | Use Scenario: Protecting ID pin sensing path in legacy uUSB-to-USB-C adapter cables during plug/unplug cycles. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp on ID line to prevent false detection or enumeration failure. Use Value: Ensures consistent USB OTG role negotiation under ±15kV contact discharge stress - critical for accessory interoperability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB interface protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1006-04UTG | 0.35pF max capacitance; 12V VBus standoff; 30A IEC 61000-4-5 rating | Targeted at lower-power USB peripherals with tighter capacitance budget but reduced surge margin | Select when VBus transients are limited to ≤12V and board space allows larger 1.6×1.6mm package |
| SZ1.5SMC27A | Discrete 27V unidirectional TVS; no integrated data-line protection; 100A surge rating | Requires three additional TVS devices for D+/D−/ID; suitable only for VBus-only protection retrofit | Choose only if redesigning legacy layouts without space for 6-pin array and accepting higher component count |
Compared with SP1006-04UTG and SZ1.5SMC27A, the RCLAMP2656P.TGT uniquely combines 26V VBus clamping, ±5V data-line protection, <0.50pF loading, and 80A surge handling in a single 2.0×1.8mm package - making it the only drop-in solution for compact, high-reliability uUSB ports requiring full-interface protection.
Availability
RCLAMP2656P.TGT is available at Aetrix Electronics and suitable for smartphone uUSB ports, laptop USB OTG interfaces, and tablet charging circuits requiring stable component supply, long-term lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for RCLAMP2656P.TGT 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 semiconductor company specializing in analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
The RCLAMP® product line delivers integrated TVS arrays optimized for high-speed serial interfaces including USB, HDMI, and Ethernet - engineered to replace discrete protection networks while preserving signal fidelity.
FAQ
What is the maximum operating voltage for the data-line protection channels of the RCLAMP2656P.TGT?
The RCLAMP2656P.TGT specifies a 5V standoff voltage for its D+, D−, and ID pin protection channels. This means the device remains non-conductive during normal USB 2.0 signaling (±0.3V differential swing within 0–3.6V common-mode range) and begins clamping only when transient voltages exceed ±5V. Confirmed per Electrical Characteristics table on page 3 of the preliminary datasheet.
Does the RCLAMP2656P.TGT provide protection for both USB host and peripheral modes?
Yes, the RCLAMP2656P.TGT supports USB On-The-Go (OTG) operation. Its bidirectional ±5V TVS elements on Pins 2–4 protect D+, D−, and ID regardless of directionality, while the unidirectional 26V TVS on Pin 1 clamps VBus surges whether the port is sourcing (host mode) or sinking (peripheral mode) power. This dual-mode capability is explicitly cited in the Applications section.
What is the clamping voltage of the RCLAMP2656P.TGT on the VBus pin under 80A surge conditions?
Under an 80A (8/20μs) surge pulse, the RCLAMP2656P.TGT clamps the VBus pin (Pin 1) to ≤35V, as shown in the "Clamping Voltage vs. Peak Pulse Current" curve on page 4 of the datasheet. This value ensures downstream 5V regulators and USB controllers remain within absolute maximum ratings during lightning-induced transients.
Can the RCLAMP2656P.TGT be used in USB 3.0 applications?
No, the RCLAMP2656P.TGT is not recommended for USB 3.0 SuperSpeed lanes. Its electrical characteristics and characterization are validated exclusively for USB 2.0 (480Mbps) and USB OTG protocols. The <0.50pF capacitance is sufficient for 480Mbps but insufficient to meet the stricter insertion loss and return loss requirements of 5Gbps SuperSpeed differential pairs.
How many ground connections does the RCLAMP2656P.TGT require for optimal ESD performance?
The RCLAMP2656P.TGT requires connection to ground at Pins 5 and 6 plus the two exposed thermal tabs - totaling four low-inductance ground paths. The datasheet recommends using multiple microvias to each ground node to minimize parasitic inductance, thereby reducing clamping voltage overshoot during ±15kV ESD events on D+/D−/ID lines.
RCLAMP2656P.TGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 6-UFDFN Exposed Pad
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 3
- Bidirectional Channels:
- -
- 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:
- Yes
- Applications:
- USB OTG
- Capacitance @ Frequency:
- 0.28pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP2018P6
RCLAMP2656P.TGT FAQ
1.How can I place an order for RCLAMP2656P.TGT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP2656P.TGT 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 RCLAMP2656P.TGT reliable?
The price and inventory of RCLAMP2656P.TGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP2656P.TGT is usually 5 days.
3.What payment methods are accepted for RCLAMP2656P.TGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP2656P.TGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP2656P.TGT?
RCLAMP2656P.TGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP2656P.TGT 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 RCLAMP2656P.TGT?
For technical support, including RCLAMP2656P.TGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP2656P.TGT requirements.
6.How does Aetrix verify that RCLAMP2656P.TGT is sourced from the original manufacturer or authorized distributors?
All RCLAMP2656P.TGT 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 RCLAMP2656P.TGT meets industry standards.
7.What is the process for return or replacement of RCLAMP2656P.TGT?
All RCLAMP2656P.TGT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP2656P.TGT, 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 RCLAMP2656P.TGT part is unused and in its original packaging.
Return procedure for RCLAMP2656P.TGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP2656P.TGT Tags
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