My Inquiry
My Account
Semtech Corporation UCLAMP0506A.TCT
- Part No.:
- UCLAMP0506A.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SOT-563, SOT-666
- Datasheet:
-
UCLAMP0506A.TCT.pdf
- Description:
- TVS DIODE 5VWM 12VC SC89-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,272
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
UCLAMP0506A.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of single 5V I/O or power lines in USB, industrial, and IoT interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 7.5V (IPP = 24A), maintains <20mΩ dynamic resistance, and operates from –40°C to +125°C in a 1.6 × 1.6 mm DFN-6 package.
For engineers reviewing the UCLAMP0506A.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature and peak pulse current, low junction capacitance (12pF), and compatibility with USB Type-C CC/SBU, load switch input, and 5V industrial bus protection.
Technical Context
The UCLAMP0506A.TCT 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-7.5V at both 24A and 40A (tp = 8/20μs)-due to decreasing RDS(on) under surge conditions.
It features bidirectional protection with 5V working voltage (VRWM), 7.5V typical clamping (VC) at 24A, 12pF junction capacitance at 5V bias, and ±30kV contact/air ESD rating. Its DFN-6 layout requires all three input pins (4–6) and all three ground pins (1–3) to be connected for full 40A surge capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 5 V - Matches standard USB, industrial control, and low-voltage logic I/O rails without derating. |
| Clamping Voltage (24A) | 7.5 V - Remains stable across –40°C to +125°C; protects 5V ICs (e.g., USB PD controllers, load switches) below damage threshold. |
| Peak Pulse Current | 40 A (8/20μs) - Meets IEC 61000-4-5 Level 4 surge immunity for industrial and automotive-grade equipment. |
| Junction Capacitance | 12 pF @ 5 V - Low enough for USB Type-C CC/SBU lines without signal integrity degradation. |
| ESD Withstand | ±30 kV (IEC 61000-4-2 Contact/Air) - Exceeds system-level ESD requirements for handheld and exposed connectors. |
| Dynamic Resistance | 20 mΩ - Enables flat clamping response; reduces voltage overshoot during fast transients vs. TVS diodes. |
Pinout & Package
UCLAMP0506A.TCT is housed in a Pb-free, RoHS-compliant DFN-6 package measuring 1.6 mm × 1.6 mm × 0.55 mm with wettable flanks. All six terminals are surface-mount; thermal performance relies on PCB copper area and multiple vias to internal ground planes-not an exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for surge current; all three must be connected to maximize 40A handling and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input (bidirectional); tied together externally to interface with single 5V bus or signal line (e.g., USB CC). |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Replaces traditional TVS with active shunt switching-enables flat clamping independent of IPP and temperature. |
| Stable 7.5V clamping up to 40A | Prevents overvoltage stress on 5V logic ICs even under worst-case surge and high ambient temperature (125°C). |
| 12pF capacitance at 5V | Preserves signal integrity on low-speed control lines (CC, SBU, enable, reset) without added RC delay or reflection. |
| ±30kV ESD robustness | Eliminates need for secondary ESD stages in end-equipment; certified for direct connector-side placement. |
| DFN-6 footprint compatibility | Drop-in replacement for legacy 5V TDS devices (e.g., UCLAMP0505A); supports automated optical inspection (AOI) via wettable flanks. |
Applications
| USB Type-C CC/SBU Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting USB Type-C Configuration Channel (CC) and Sideband Use (SBU) lines against ESD and surges during hot-plug events. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed directly at the connector, clamping transients before they reach the USB PD controller or multiplexer. Use Value: Maintains 7.5V clamping at 24A while adding only 12pF loading-preserves CC logic timing and avoids false attach/detach detection. |
Use Scenario: Safeguarding the input of industrial-grade load switches (e.g., ON Semiconductor NIS513x, Diodes Inc. AP22653) against lightning-induced surges and EFT bursts. IC Role / Device Role / Timing Role: Primary front-end protector that limits voltage seen by the load switch's internal MOSFET gate oxide and drain-source junction. Use Value: Prevents latch-up or permanent failure of the load switch by holding clamping voltage well below its absolute maximum VDS rating (typically ≤12V). |
| Smart Meter Communication Interface | IoT Sensor Node Power Bus Protection |
Use Scenario: Shielding RS-485/UART lines and auxiliary 5V power rails in utility smart meters exposed to harsh EMC environments (IEC 61000-4-4/5). IC Role / Device Role / Timing Role: Single-device solution for combined ESD, EFT, and surge suppression on low-bandwidth control buses. Use Value: Delivers 40A surge handling and ±4kV EFT immunity without requiring cascaded protection stages-reducing BOM count and board space. |
Use Scenario: Securing the 5V supply rail feeding BLE/Wi-Fi modules, environmental sensors, and microcontrollers in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Standalone overvoltage clamp on the main power input, activated only during transients to avoid quiescent current impact. Use Value: Adds <130nA leakage at 5V-preserving battery life-while enabling reliable operation in ungrounded, portable deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCLAMP0505A.TCT | Same 5V VRWM, but lower 24A clamping (7.0V) and 40A rating; 10pF capacitance. | Better suited for ultra-low-capacitance CC-line designs where sub-10pF is critical; slightly less robust under sustained 40A surges. | Select UCLAMP0505A.TCT only if measured capacitance must be ≤10pF; otherwise UCLAMP0506A.TCT offers superior surge margin. |
| SMAJ5.0A-E3/57T | Standard unidirectional TVS diode; 5.0V VRWM, 14.4V VC @ 24A; 1000pF typical capacitance. | Not suitable for high-speed or low-capacitance lines; clamping rises significantly with temperature and current. | Use only in cost-sensitive, non-critical 5V power rail applications where clamping voltage >14V is acceptable and layout allows larger footprint. |
Compared with UCLAMP0505A.TCT, UCLAMP0506A.TCT trades 2pF higher capacitance for 0.5V higher clamping headroom and verified 40A surge endurance; versus SMAJ5.0A-E3/57T, it delivers 7× lower clamping voltage and 99% less capacitance-making it viable for signal-line protection where legacy TVS fails.
Availability
UCLAMP0506A.TCT is available at Aetrix Electronics and suitable for USB Type-C interface design, industrial load switch protection, and IoT sensor node power bus applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for UCLAMP0506A.TCT 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.
The UCLAMP series belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-reliability 3.3V–24V interfaces where flat clamping, low capacitance, and temperature stability are mandatory.
FAQ
What is the maximum operating temperature range for UCLAMP0506A.TCT?
The UCLAMP0506A.TCT is rated for continuous operation from –40°C to +125°C. Its clamping voltage remains stable across this full range-measured at 7.5V ±0.3V from –40°C to +125°C at 24A-ensuring consistent protection in automotive under-hood, industrial control, and outdoor IoT deployments where ambient extremes occur.
Does UCLAMP0506A.TCT require a thermal pad on the PCB?
No. The UCLAMP0506A.TCT does not use an exposed thermal pad. Its DFN-6 package dissipates surge energy through the six copper-connected terminals into the PCB ground plane. Layout best practice mandates connecting all three GND pins (1–3) with short, wide traces and multiple vias to an inner-layer ground plane to minimize inductance and maximize 40A surge current handling.
Can UCLAMP0506A.TCT protect bidirectional data lines like USB CC?
Yes. UCLAMP0506A.TCT is inherently bidirectional and designed explicitly for USB Type-C CC and SBU line protection. Its symmetrical structure and 5V working voltage allow safe clamping of both positive and negative transients on these low-speed, low-capacitance control lines-verified in Semtech's reference design with uClamp2411ZA and RClamp3371ZC co-deployments.
How does UCLAMP0506A.TCT differ from standard TVS diodes in clamping behavior?
Unlike standard TVS diodes whose clamping voltage rises linearly with peak pulse current (VC = VBR + IPP × RDYN), the UCLAMP0506A.TCT uses a triggered FET shunt that maintains ~7.5V clamping from 1A to 40A. This flat response-confirmed across –40°C to +125°C-prevents overvoltage stress on downstream 5V ICs under varying surge severity and thermal conditions.
Is UCLAMP0506A.TCT compatible with automated optical inspection (AOI)?
Yes. The UCLAMP0506A.TCT features wettable flank terminations on its DFN-6 package, enabling reliable solder joint inspection using standard AOI systems. Its 1.6 mm × 1.6 mm footprint and defined pin 1 marking (laser dot) support high-yield, IPC-610-compliant assembly in volume manufacturing environments.
UCLAMP0506A.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- SOT-563, SOT-666
- Series:
- uClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 5
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 7A (8/20µs)
- Power - Peak Pulse:
- 100W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 30pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-89 (SOT-666)
UCLAMP0506A.TCT FAQ
1.How can I place an order for UCLAMP0506A.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP0506A.TCT 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 UCLAMP0506A.TCT reliable?
The price and inventory of UCLAMP0506A.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP0506A.TCT is usually 5 days.
3.What payment methods are accepted for UCLAMP0506A.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP0506A.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP0506A.TCT?
UCLAMP0506A.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP0506A.TCT 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 UCLAMP0506A.TCT?
For technical support, including UCLAMP0506A.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP0506A.TCT requirements.
6.How does Aetrix verify that UCLAMP0506A.TCT is sourced from the original manufacturer or authorized distributors?
All UCLAMP0506A.TCT 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 UCLAMP0506A.TCT meets industry standards.
7.What is the process for return or replacement of UCLAMP0506A.TCT?
All UCLAMP0506A.TCT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP0506A.TCT, 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 UCLAMP0506A.TCT part is unused and in its original packaging.
Return procedure for UCLAMP0506A.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCLAMP0506A.TCT Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
