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Semtech Corporation UCLAMP2271P.TNT
- Part No.:
- UCLAMP2271P.TNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0603 (1610 Metric)
- Datasheet:
-
UCLAMP2271P.TNT.pdf
- Description:
- TVS DIODE 22VWM 55VC SGP1610N2
- Quantity:
- Payment:
- Shipping:
Inventory:14,557
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Product details
Overview
UCLAMP2271P.TNT from Semtech is a transient diverting suppressor 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, and 175pF junction capacitance - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the UCLAMP2271P.TNT datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, real-world clamping stability data across temperature and current, and direct alternative part comparisons for robust EOS protection design.
Technical Context
The UCLAMP2271P.TNT 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 (27.5–28V) across 24–40A IPP and −40°C to +125°C due to decreasing RDS(on) under surge conditions.
It operates with a 22V reverse stand-off voltage (VRWM), 25–27.9V breakdown (VBR), <600nA leakage at 22V, and 20mΩ dynamic resistance - enabling reliable protection of USB PD bus lines and load switch inputs without thermal derating penalties.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal USB PD bus voltage and protects against overvoltage up to rated stand-off level. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo waveform) - stays below typical 30V damage threshold of PD controllers and load switches. |
| ESD Rating | ±30kV contact & air (IEC 61000-4-2) - exceeds Level 4 system-level ESD immunity requirements for consumer and industrial ports. |
| Peak Pulse Current | 40A (8/20μs) - satisfies IEC 61000-4-5 Level 3 surge immunity (±1kV, RS = 42Ω) for industrial equipment interfaces. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough for DC power rail protection without affecting load switch response or PD negotiation timing. |
| Dynamic Resistance | 20mΩ - ensures minimal voltage rise under surge, enabling stable clamping independent of current magnitude. |
| Operating Temp | −40°C to +125°C - supports deployment in automotive-adjacent industrial and outdoor IoT applications without derating. |
Pinout & Package
UCLAMP2271P.TNT is housed in a RoHS-compliant, halogen-free DFN package measuring 1.6mm × 1.6mm × 0.55mm with six terminals. The compact footprint enables placement directly at USB-C connectors or load switch inputs with minimal PCB area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for 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 or load switch VIN); parallel connection of all three pins ensures uniform current sharing and full 40A rating. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based clamping architecture | Delivers flat clamping voltage (27.5–28V) across full 24–40A surge range - eliminates voltage overshoot risks seen with conventional TVS diodes. |
| Stable performance over temperature | Clamping voltage varies <0.5V from −40°C to +125°C - enables reliable protection in uncontrolled thermal environments without margin inflation. |
| Low dynamic resistance | 20mΩ RDYN minimizes IR drop during surge - preserves downstream device integrity even under worst-case 40A transients. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz) - protects against repetitive fast transients in motor-driven or switching-power industrial systems. |
| Space-efficient DFN-6 | 1.6mm × 1.6mm footprint saves >50% board area vs. SOT-23 or SOIC alternatives - critical for dense USB-C port layouts. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20–22V VBUS lines in USB-C receptacles supporting up to 100W PD negotiation. IC Role / Device Role / Timing Role: Primary EOS shunt device placed between connector and PD controller or load switch input. Use Value: Maintains clamping at ≤28V across temperature and current - prevents latch-up or gate oxide damage in PD controllers rated for 30V max. |
Use Scenario: Front-end surge suppression for industrial-grade load switches (e.g., HS2950P) powering remote sensors or actuators. IC Role / Device Role / Timing Role: Transient energy diversion path that limits voltage stress on the load switch's internal FET during lightning-induced surges. Use Value: Enables use of cost-optimized load switches without requiring oversized voltage ratings - reduces BOM cost while meeting IEC 61000-4-5 Level 3. |
| IoT Edge Device Power Input Protection | Storage Device 22V Rail Protection |
|
Use Scenario: Securing 22V auxiliary power inputs on battery-backed smart meters or gateway controllers exposed to field ESD events. IC Role / Device Role / Timing Role: First-line defense against contact ESD (±30kV) and conducted surges before LDOs or PMICs. Use Value: 175pF capacitance avoids signal integrity issues on DC rails; low leakage (<600nA) preserves battery life in always-on monitoring modes. |
Use Scenario: Protecting 22V backup or auxiliary rails in NVMe SSD enclosures or enterprise storage backplanes. IC Role / Device Role / Timing Role: High-energy transient clamp on power distribution network feeding flash controller or buffer ICs. Use Value: 1120W peak pulse power rating handles multiple surge events without degradation - extends field reliability beyond standard TVS lifetime. |
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 functional specification, same DFN-6 package, identical pinout and electrical parameters per Semtech documentation. | No functional difference; TDS2211P is the base part number; UCLAMP2271P.TNT is a variant with identical EOS protection behavior and marking code T22. | Select UCLAMP2271P.TNT for tape-and-reel procurement with Semtech's standard ordering suffix (.TNT); TDS2211P.C is alternate reel packaging. |
| SP1003-02HTG | Higher VRWM (24V), lower clamping (24.5V @ 30A), but only 30A IPP rating and ±20kV ESD - lacks flat-clamp FET architecture. | Suitable for 24V systems but not recommended where 40A surge headroom or ±30kV ESD is required; exhibits rising clamping with temperature. | Choose SP1003-02HTG only if 24V working voltage is mandatory and 40A/±30kV requirements are relaxed; UCLAMP2271P.TNT provides superior clamping stability. |
Compared with TDS2211P, UCLAMP2271P.TNT offers identical protection performance with standardized tape-and-reel packaging; versus SP1003-02HTG, it delivers 33% higher surge current capacity, 50% higher ESD rating, and thermally invariant clamping - making it the preferred choice for demanding USB PD and industrial applications.
Availability
UCLAMP2271P.TNT is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and IoT edge device power rails requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/WEEE compliance.
Supply support for UCLAMP2271P.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 analog and mixed-signal ICs for precision sensing, protection, and connectivity.
The UCLAMP2271P.TNT belongs to Semtech's Transient Diverting Suppressor (TDS) family, engineered to replace conventional TVS diodes in high-reliability 22V power rail protection where flat clamping and temperature stability are critical.
FAQ
What is the maximum clamping voltage of UCLAMP2271P.TNT at 40A surge current?
The UCLAMP2271P.TNT clamps at 27.5–28V under IEC 61000-4-5 combination waveform (1.2/50μs voltage + 8/20μs current, RS = 2Ω) at 40A peak pulse current. This value is guaranteed across −40°C to +125°C and reflects the device's FET-based architecture, which maintains near-constant clamping unlike traditional TVS diodes.
Is UCLAMP2271P.TNT pin-compatible with TDS2211P?
Yes - UCLAMP2271P.TNT shares identical pin configuration, DFN-6 package dimensions (1.6mm × 1.6mm), and terminal mapping with TDS2211P: pins 1–3 are GND, pins 4–6 are IN. Both parts require all six pins to be soldered for full 40A surge capability and optimal thermal performance.
Does UCLAMP2271P.TNT meet IEC 61000-4-2 Level 4 ESD requirements?
Yes - UCLAMP2271P.TNT is rated for ±30kV contact discharge and ±30kV air discharge per IEC 61000-4-2, exceeding Level 4 (±15kV contact / ±15kV air) by a 2× margin. This makes it suitable for external-facing USB-C ports and industrial HMI interfaces subject to frequent human interaction.
What is the junction capacitance of UCLAMP2271P.TNT and how does it affect USB PD applications?
UCLAMP2271P.TNT has a junction capacitance of 175pF at 22V and 1MHz. This value is optimized for DC power rail protection - low enough to avoid interfering with USB PD communication timing or load switch enable/disable transitions, yet high enough to provide effective low-impedance surge shunting without resonance issues.
Can UCLAMP2271P.TNT be used to protect both VBUS and CC lines in USB Type-C designs?
No - UCLAMP2271P.TNT is intended exclusively for 22V power rail (VBUS) protection. For CC and SBU lines, Semtech recommends uClamp2411ZA (24V-rated, ultra-low capacitance). Using UCLAMP2271P.TNT on CC lines would introduce excessive capacitance (>175pF), disrupting PD protocol handshaking and voltage detection.
UCLAMP2271P.TNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0603 (1610 Metric)
- Series:
- uClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 22V (Max)
- Voltage - Breakdown (Min):
- 25.5V
- Voltage - Clamping (Max) @ Ipp:
- 55V
- Current - Peak Pulse (10/1000µs):
- 25A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 165pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SGP1610N2
UCLAMP2271P.TNT FAQ
1.How can I place an order for UCLAMP2271P.TNT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP2271P.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 UCLAMP2271P.TNT reliable?
The price and inventory of UCLAMP2271P.TNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP2271P.TNT is usually 5 days.
3.What payment methods are accepted for UCLAMP2271P.TNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP2271P.TNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP2271P.TNT?
UCLAMP2271P.TNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP2271P.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 UCLAMP2271P.TNT?
For technical support, including UCLAMP2271P.TNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP2271P.TNT requirements.
6.How does Aetrix verify that UCLAMP2271P.TNT is sourced from the original manufacturer or authorized distributors?
All UCLAMP2271P.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 UCLAMP2271P.TNT meets industry standards.
7.What is the process for return or replacement of UCLAMP2271P.TNT?
All UCLAMP2271P.TNT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP2271P.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 UCLAMP2271P.TNT part is unused and in its original packaging.
Return procedure for UCLAMP2271P.TNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCLAMP2271P.TNT Tags
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