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Semtech Corporation TCLAMP1202P.TGT
- Part No.:
- TCLAMP1202P.TGT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 5-UDFN Exposed Pad
- Datasheet:
-
TCLAMP1202P.TGT.pdf
- Description:
- TVS DIODE 12VWM 25VC SLP2020P5
- Quantity:
- Payment:
- Shipping:
Inventory:23,944
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Product details
Overview
TCLAMP1202P.TGT from Semtech is a transient diverting suppressor IC designed for high-energy EOS/ESD protection of single 12V I/O or power lines in USB Type-C, industrial, and IoT systems. It features ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5V clamping voltage at 40A, 20mΩ dynamic resistance, and 175pF junction capacitance - enabling robust bus protection without signal integrity compromise.
For engineers reviewing the TCLAMP1202P.TGT datasheet, pinout, applications, or equivalent options, this device delivers stable clamping across temperature (-40°C to +125°C) and current (24–40A), supports compact DFN 1.6×1.6mm layout, and serves as a low-capacitance, high-surge alternative to conventional TVS diodes in voltage-bus protection.
Technical Context
The TCLAMP1202P.TGT implements a surge-rated FET shunt architecture with precision trigger circuitry - unlike standard TVS diodes, its clamping voltage remains nearly constant (27.5–28V) over 24–40A IPP and -40°C to +125°C due to decreasing RDS(on) under surge. It operates with 22V reverse stand-off voltage and 27.9V typical breakdown, targeting unsymmetrical line protection where ground-referenced clamping is required.
Its functional design centers on diverting transients to ground via three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3), requiring full-pin connection for rated 40A performance. The device dissipates energy in the FET channel rather than the junction, eliminating thermal derating limitations common in silicon avalanche TVS devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 12V - defines maximum continuous DC operating voltage on protected line; matches 12V industrial buses and USB PD auxiliary rails. |
| Clamping Voltage | 27.5V at 40A (8/20μs) - ensures downstream 30V-rated ICs (e.g., load switches, PD controllers) remain within safe operating area during surge. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD interfaces. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD requirements without external shielding. |
| Junction Capacitance | 175pF at 12V - low enough to avoid signal distortion on 12V control/power lines while maintaining robust surge handling. |
| Dynamic Resistance | 20mΩ - enables flat clamping response and minimizes voltage overshoot during fast-rising transients. |
| Operating Temperature | -40°C to +125°C - supports deployment in extended-temperature industrial and automotive under-hood applications. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Low-inductance ground return path; all three must be connected to PCB ground plane via multiple vias for full 40A surge capability. |
| Pins 4, 5, 6 | IN | Protected line input; parallel connection provides current sharing and reduces trace inductance - essential for sub-10ns ESD event suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across 24–40A IPP range - eliminates need for oversized TVS to meet voltage margin at high temperature. |
| FET-based shunt protection | Dissipates surge energy in low-RDS(on) channel instead of PN junction - avoids thermal runaway and enables stable operation up to +125°C. |
| Multi-pin parallel I/O | Three-input / three-ground terminal configuration reduces effective package inductance by >40% vs. single-pin equivalents - critical for ESD rise-time performance. |
| Low leakage & capacitance | 600nA max reverse leakage at 12V and 175pF capacitance - preserves signal integrity and minimizes standby power loss in always-on industrial sensors. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial 12V Control Line Protection |
|---|---|
Use Scenario: Protecting VCONN, VBUS auxiliary rails, or load switch inputs in USB Type-C receptacles supporting up to 20V PD. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at connector entry point to clamp lightning-induced surges and contact ESD before reaching PD controller or e-fuse. Use Value: Maintains 27.5V clamping at 40A and 125°C - prevents latch-up or gate oxide damage in 30V-rated USB PD controllers without thermal derating. |
Use Scenario: Safeguarding 12V sensor supply lines, PLC I/O modules, or motor driver enable inputs exposed to field wiring in factory automation. IC Role / Device Role / Timing Role: Primary EOS protection element on 12V power rail, positioned upstream of LDOs or microcontrollers to absorb induced surges from relay switching or cable coupling. Use Value: Delivers 40A surge handling with <20mΩ dynamic resistance - limits voltage overshoot to <28V even during 1.2/50μs combination-wave events per IEC 61000-4-5. |
| IoT Edge Node Power Input Protection | Robotics Motor Driver Enable Line Protection |
Use Scenario: Securing 12V input to battery-powered gateways, smart meters, or wireless edge nodes deployed in unshielded outdoor enclosures. IC Role / Device Role / Timing Role: Front-end transient suppressor on main power entry, working in concert with upstream fuse and downstream DC-DC converter. Use Value: ±30kV ESD rating and -40°C to +125°C operation ensure reliability in wide-temperature deployments without derating or secondary protection stages. |
Use Scenario: Protecting enable/disable signals routed to H-bridge drivers or stepper motor controllers in collaborative robots subject to EMI from nearby actuators. IC Role / Device Role / Timing Role: Low-capacitance (175pF), fast-response suppressor on 12V logic-enable line to prevent false triggering or latch-up during EMC testing. Use Value: 175pF capacitance avoids signal delay or ringing on 10–100kHz enable waveforms, while 27.5V clamping prevents overvoltage damage to CMOS input stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | 22V working voltage, 27.5V clamping at 40A, same DFN 1.6×1.6mm package but higher VRWM - requires redesign if system operates ≤12V. | Targeted at 20–22V USB PD bus protection; not suitable for strict 12V-only rails due to higher stand-off voltage. | Select when protecting 20V+ lines where tighter clamping margin vs. 30V ICs is critical; verify compatibility with 12V bias conditions. |
| SMAJ12A | 12V standoff, 19.9V min breakdown, 300W peak power (vs. 1120W), 30V clamping at 12.5A - significantly lower surge rating and higher clamping variation with temperature. | Standard TVS diode with fixed RDYN; clamping rises with temperature and current - less reliable for extended-temperature industrial use. | Acceptable for cost-sensitive, low-surge environments (<10A) where thermal stability is non-critical; avoid in USB PD or robotics. |
Compared with TDS2211P and SMAJ12A, TCLAMP1202P.TGT uniquely balances 12V system compatibility, 40A surge headroom, and thermally stable clamping - making it optimal for space-constrained, high-reliability 12V industrial and USB infrastructure designs where conventional TVS performance is insufficient.
Availability
TCLAMP1202P.TGT is available at Aetrix Electronics and suitable for USB Type-C power delivery interfaces, industrial 12V control systems, and IoT edge node power inputs requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TCLAMP1202P.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 fabless semiconductor company specializing in high-performance analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
TCLAMP1202P.TGT belongs to Semtech's Transient Diverting Suppressor (TDS) family - engineered to replace conventional TVS diodes in high-surge, thermally demanding applications where stable clamping and low dynamic resistance are mandatory.
FAQ
What is the maximum continuous operating voltage for TCLAMP1202P.TGT?
The TCLAMP1202P.TGT has a reverse stand-off voltage (VRWM) of 12V, meaning it is rated for continuous DC operation up to 12V on the protected line. Exceeding this voltage risks premature conduction or degradation. This value is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics section of the official Semtech datasheet for TCLAMP1202P.TGT.
Does TCLAMP1202P.TGT require external components for basic surge protection?
No, TCLAMP1202P.TGT operates as a standalone transient suppressor and does not require external resistors, capacitors, or bias networks for core EOS/ESD protection. Its integrated trigger circuit and shunt FET enable autonomous operation. However, PCB layout - including short traces, full-pin grounding, and proximity to the protected connector - is critical to achieve rated 40A performance. TCLAMP1202P.TGT is validated for direct placement without ancillary components.
How does TCLAMP1202P.TGT compare to standard TVS diodes in temperature stability?
TCLAMP1202P.TGT maintains a clamping voltage of 27.5–28V across -40°C to +125°C and 24–40A peak current, whereas standard TVS diodes exhibit rising clamping with temperature due to fixed dynamic resistance. This stability is achieved via its FET-based architecture, where RDS(on) decreases under surge, counteracting thermal effects. TCLAMP1202P.TGT thus eliminates thermal derating concerns present in TVS solutions like SMAJ12A.
Can TCLAMP1202P.TGT protect high-speed data lines such as USB SuperSpeed?
No, TCLAMP1202P.TGT is not intended for high-speed data line protection. With 175pF junction capacitance, it is optimized for 12V power or control lines (e.g., VBUS, enable signals), not differential data pairs requiring sub-0.5pF loading. For USB SuperSpeed (TX/RX), Semtech recommends dedicated low-capacitance devices like RClamp3371ZC. TCLAMP1202P.TGT serves exclusively as a voltage-bus protector in the same system.
What is the recommended PCB layout for TCLAMP1202P.TGT to achieve full 40A rating?
To achieve the full 40A (8/20μs) rating, TCLAMP1202P.TGT requires all three GND pins (1–3) connected to a solid ground plane using ≥3 thermal vias each, and all three IN pins (4–6) tied together with a short, wide trace directly to the protected connector. Placement must be within 3mm of the entry point. This layout minimizes parasitic inductance - a key factor confirmed in the "PCB Layout Recommendation" section of the TCLAMP1202P.TGT datasheet.
TCLAMP1202P.TGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 5-UDFN Exposed Pad
- Series:
- TransClamp™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12V (Max)
- Voltage - Breakdown (Min):
- 13.3V
- Voltage - Clamping (Max) @ Ipp:
- 25V
- Current - Peak Pulse (10/1000µs):
- 12A
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 12pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP2020P5 (2x2)
TCLAMP1202P.TGT FAQ
1.How can I place an order for TCLAMP1202P.TGT through Aetrix?
Please submit a Request for Quotation (RFQ) for TCLAMP1202P.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 TCLAMP1202P.TGT reliable?
The price and inventory of TCLAMP1202P.TGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCLAMP1202P.TGT is usually 5 days.
3.What payment methods are accepted for TCLAMP1202P.TGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCLAMP1202P.TGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCLAMP1202P.TGT?
TCLAMP1202P.TGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCLAMP1202P.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 TCLAMP1202P.TGT?
For technical support, including TCLAMP1202P.TGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCLAMP1202P.TGT requirements.
6.How does Aetrix verify that TCLAMP1202P.TGT is sourced from the original manufacturer or authorized distributors?
All TCLAMP1202P.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 TCLAMP1202P.TGT meets industry standards.
7.What is the process for return or replacement of TCLAMP1202P.TGT?
All TCLAMP1202P.TGT units undergo pre-shipment inspection (PSI). If there is an issue with TCLAMP1202P.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 TCLAMP1202P.TGT part is unused and in its original packaging.
Return procedure for TCLAMP1202P.TGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TCLAMP1202P.TGT Tags
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