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Semtech Corporation RCLAMP0582B.TCT
- Part No.:
- RCLAMP0582B.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SC-75, SOT-416
- Datasheet:
-
RCLAMP0582B.TCT.pdf
- Description:
- TVS DIODE 5VWM 20VC SC75
- Quantity:
- Payment:
- Shipping:
Inventory:123,934
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Product details
Overview
RCLAMP0582B.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of 22V-rated I/O or power lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and stable 27.5–28V clamping across full current and temperature range. It protects USB Type-C power delivery buses, load switch inputs, and industrial interfaces where low, temperature-invariant clamping is critical.
For engineers reviewing the RCLAMP0582B.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability over temperature, dynamic resistance ≤20 mΩ, junction capacitance of 175 pF at 22V, and DFN 1.6×1.6×0.55 mm 6-lead package compatibility with high-density USB PD and IoT layouts.
Technical Context
The RCLAMP0582B.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 - not linearly increasing - due to decreasing RDS(on) under surge conditions.
It operates across –40°C to +125°C, maintains <600 nA reverse leakage at 22V, and delivers 1120 W peak pulse power (8/20μs). Its functional architecture enables robust protection for unsymmetrical lines per IEC 61000-4-5 (±1 kV, 1.2/50 μs + 8/20 μs, RS = 42 Ω) and high-frequency EFT immunity (±4 kV, 5/50 ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22 V - matches nominal USB PD bus and industrial 24V rail systems without derating. |
| Clamping Voltage | 27.5–28 V at 40A (8/20μs) - stays within safe margin below typical 30V+ IC damage thresholds. |
| Peak Pulse Current | 40 A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial equipment. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD test requirements. |
| Junction Capacitance | 175 pF at 22 V, 1 MHz - optimized for power/data line protection without signal integrity compromise. |
| Dynamic Resistance | 20 mΩ (8/20μs, 1–40 A) - ensures minimal voltage rise during surge conduction, enabling stable clamping. |
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, tape-and-reel packaging (3,000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground terminals - all three must be connected to minimize inductance and maximize surge current handling. |
| 4, 5, 6 | IN | Protected line input - pins tied together to distribute surge current and reduce trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5 V across 1–40 A surge range and –40°C to +125°C - eliminates thermal derating uncertainty. |
| FET-based shunt protection | Replaces PN-junction TVS with <0.1 Ω effective RDS(on), reducing energy dissipation in junction and improving reliability. |
| High-energy surge rating | 1120 W peak pulse power supports repeated lightning-surge events in industrial and outdoor equipment. |
| Low-leakage design | ≤600 nA at 22 V ensures minimal standby power loss and no signal distortion on always-on power rails. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–22V USB PD power bus against ESD, lightning-induced surges, and connector hot-plug transients. IC Role / Device Role / Timing Role: Transient diverting suppressor placed between VBus and GND, acting as fast-acting shunt clamp triggered by overvoltage detection. Use Value: Maintains clamping at ≤28 V across temperature and current - prevents damage to PD controllers rated for ≤30 V absolute max. |
Use Scenario: Safeguarding enable and input pins of industrial-grade load switches (e.g., HS2950P) exposed to field wiring surges. IC Role / Device Role / Timing Role: Primary front-end protector absorbing >95% of transient energy before it reaches sensitive internal FET gate oxide. Use Value: Prevents gate-oxide rupture and latch-up in load switches by limiting stress voltage to <28 V regardless of ambient temperature. |
| IoT Edge Node Power Rail Protection | Robotic Actuator Control Interface Protection |
Use Scenario: Securing 24V DC input rails in battery-powered or PoE-powered IoT gateways operating in uncontrolled environments. IC Role / Device Role / Timing Role: Standalone EOS suppressor on main power entry point, coordinated with upstream fusing and downstream LDOs. Use Value: Enables single-device compliance with IEC 61000-4-4 (EFT ±4 kV) and IEC 61000-4-5 (surge ±1 kV) without cascaded protection stages. |
Use Scenario: Protecting motor driver enable/control lines in collaborative robots subject to cable discharge and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional shunt clamp on logic-level control signals interfacing with high-current H-bridge drivers. Use Value: Ensures control signal integrity remains intact after ±30 kV ESD events, avoiding spurious actuation or lockup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P.C | Identical electrical specs, same DFN 1.6×1.6 mm package, but marked "T22" and shipped in 7″ reel (3,000 pcs); RCLAMP0582B.TCT uses different marking and may differ in tape width or orientation. | Same USB PD, load switch, and industrial use cases; validated in identical reference designs (e.g., Figure 4 & 5 of Semtech TDS2211P datasheet). | Select TDS2211P.C when sourcing directly from Semtech distribution channels requiring standard reel configuration. |
| uClamp2411ZA.TCT | 24 V working voltage, lower 24 A peak pulse rating, higher 30 V clamping, smaller 1.0×0.6 mm 2-pin SOD-523 package - not pin-compatible. | Targeted at CC/SBU lines in USB Type-C, not main VBus; insufficient for 40 A surge or 22 V rail protection. | Use uClamp2411ZA.TCT only for auxiliary signal lines; RCLAMP0582B.TCT remains required for primary power rail protection. |
Compared with TDS2211P.C, RCLAMP0582B.TCT offers identical protection performance in the same footprint but may differ in reel logistics; versus uClamp2411ZA.TCT, it provides 67% higher surge rating and 2 V lower clamping - making it the sole suitable choice for 22V bus-level protection.
Availability
RCLAMP0582B.TCT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT edge node power rails requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/WEEE compliance.
Supply support for RCLAMP0582B.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 analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
RCLAMP0582B.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace traditional TVS diodes in high-reliability 22V power and interface protection applications where clamping stability over temperature and current is mandatory.
FAQ
What is the maximum operating temperature for RCLAMP0582B.TCT?
RCLAMP0582B.TCT is rated for continuous operation from –40°C to +125°C ambient temperature. Its clamping voltage remains stable across this full range, with measured variation of less than 0.5 V at 40 A surge - a key advantage over conventional TVS diodes whose clamping rises significantly with temperature. This makes RCLAMP0582B.TCT suitable for under-hood automotive modules and industrial enclosures without thermal derating.
Does RCLAMP0582B.TCT meet IEC 61000-4-5 surge immunity standards?
Yes, RCLAMP0582B.TCT is rated for ±1 kV (1.2/50 μs voltage waveform, 8/20 μs current waveform, RS = 42 Ω) per IEC 61000-4-5 for unsymmetrical lines, and supports up to 40 A (8/20 μs) - exceeding Level 4 requirements. Its 1120 W peak pulse power rating and constant-clamp behavior ensure reliable pass/fail performance in certified test labs without margin erosion at elevated temperatures.
Can RCLAMP0582B.TCT be used on USB SuperSpeed differential pairs?
No, RCLAMP0582B.TCT is not suitable for USB SuperSpeed (SS) TX/RX differential pairs. Its 175 pF junction capacitance would severely degrade signal integrity at 5+ Gbps. For SS lines, Semtech specifies low-capacitance devices like RClamp3371ZC (<0.25 pF). RCLAMP0582B.TCT is intended exclusively for VBus, CC, SBU, or power-rail protection where capacitance is non-critical.
What is the pin configuration and PCB layout guidance for RCLAMP0582B.TCT?
RCLAMP0582B.TCT uses a 6-pin DFN package: pins 1–3 are GND, pins 4–6 are IN. All GND pins must connect to a low-inductance ground plane via multiple vias; all IN pins must tie together with a short, wide trace. Placement must be adjacent to the protected connector - not near downstream ICs - to prevent transient coupling. No thermal pad is required, as energy is dissipated in the FET channel, not the junction.
How does RCLAMP0582B.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) - RCLAMP0582B.TCT uses a triggered FET shunt that maintains ~27.5–28 V clamping from 1 A to 40 A. Its dynamic resistance is just 20 mΩ, and clamping stays flat across –40°C to +125°C. This eliminates design uncertainty caused by thermal drift and current-dependent voltage overshoot seen in PN-junction TVS devices.
RCLAMP0582B.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- SC-75, SOT-416
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 20V
- Current - Peak Pulse (10/1000µs):
- 15A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1.2pF @ 1MHz
- Operating Temperature:
- -40°C ~ 105°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-75 (SOT523)
RCLAMP0582B.TCT FAQ
1.How can I place an order for RCLAMP0582B.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0582B.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 RCLAMP0582B.TCT reliable?
The price and inventory of RCLAMP0582B.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0582B.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP0582B.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0582B.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0582B.TCT?
RCLAMP0582B.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0582B.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 RCLAMP0582B.TCT?
For technical support, including RCLAMP0582B.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0582B.TCT requirements.
6.How does Aetrix verify that RCLAMP0582B.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0582B.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 RCLAMP0582B.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP0582B.TCT?
All RCLAMP0582B.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0582B.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 RCLAMP0582B.TCT part is unused and in its original packaging.
Return procedure for RCLAMP0582B.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP0582B.TCT Tags
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