My Inquiry
My Account
Semtech Corporation RCLAMP0531TQTCT
- Part No.:
- RCLAMP0531TQTCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
RCLAMP0531TQTCT.pdf
- Description:
- TVS DIODE 5VWM 20VC SLP1006P2T
- Quantity:
- Payment:
- Shipping:
Inventory:22,387
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
RCLAMP0531TQTCT 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 voltage across temperature and current range - deployed in USB Type-C PD input protection and industrial load switch inputs.
For engineers reviewing the RCLAMP0531TQTCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability under 40A surge, low dynamic resistance (20mΩ), junction capacitance (175pF @ 22V), DFN 1.6×1.6mm package compatibility, and compliance with IEC 61000-4-2/4-4/4-5 standards.
Technical Context
The RCLAMP0531TQTCT 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 threshold. Unlike conventional TVS diodes, its clamping voltage remains nearly constant (27.5–28V) from 24A to 40A due to decreasing RDS(on) under surge conditions.
It operates over –40°C to +125°C, maintains <600nA reverse leakage at 22V, and delivers 1120W peak pulse power (8/20μs). Its functional architecture separates trigger and conduction paths, enabling superior thermal stability and lower clamping drift versus temperature compared to standard TVS devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC bus voltage it can protect without leakage or degradation. |
| Clamping Voltage | 27.5–28V @ 40A (8/20μs) - ensures protected ICs (e.g., USB PD controllers) remain below damage thresholds during worst-case surges. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD robustness requirements. |
| Junction Capacitance | 175pF @ 22V, 1MHz - compatible with medium-speed interfaces (e.g., USB 2.0, load switch control lines), not superspeed lanes. |
| Dynamic Resistance | 20mΩ - enables low-voltage drop during high-current transients, minimizing energy dissipation in the device. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1, 2, 3 | GND | Common ground connection - all three must be soldered to maximize surge current path and minimize inductance. |
| Pin 4, 5, 6 | IN | Protected line input - connected directly to VBus or power/data line; all three pins conduct surge current in parallel. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Enables near-constant clamping voltage (27.5–28V) across full 24–40A surge range - avoids voltage runaway seen in TVS diodes. |
| Low dynamic resistance | 20mΩ - reduces I²R heating during 40A surges, improving reliability and thermal margin in compact layouts. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 5kHz & 100kHz) - protects against repetitive fast transients in industrial control environments. |
| Stable performance over temperature | Clamping voltage variation <0.5V from –40°C to +125°C - eliminates derating concerns in wide-temperature deployments. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–22V VBus lines in USB-C PD ports against lightning-induced surges and connector hot-plug ESD. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed between connector and PD controller/load switch input. Use Value: Maintains clamping at ≤28V across 40A/8/20μs surges and –40°C to +125°C, preventing damage to sensitive PD ICs where TVS solutions exceed safe voltage margins. |
Use Scenario: Safeguarding enable, input, or OVP pins of industrial-grade load switches (e.g., HS2950P) exposed to field wiring transients. IC Role / Device Role / Timing Role: Front-end transient clamp on VIN or EN rail, limiting voltage seen by internal FET gate oxide and control logic. Use Value: Prevents latch-up or gate oxide rupture in load switches by holding clamped voltage below 30V even at 125°C ambient - critical for robotics and remote metering. |
| IoT Device Power Bus Protection | Storage Device 22V Rail Protection |
Use Scenario: Securing 22V auxiliary power rails in battery-backed IoT gateways subjected to ESD during field servicing or surge coupling from AC adapters. IC Role / Device Role / Timing Role: Standalone transient suppressor on main DC input before DC-DC conversion stage. Use Value: Delivers 40A surge handling in 1.6×1.6mm footprint - saves >50% board area vs. legacy SOT-23 TVS arrays while maintaining same protection level. |
Use Scenario: Protecting 22V supply rails in enterprise SSD enclosures or NVMe add-in cards exposed to system-level ESD and backplane surges. IC Role / Device Role / Timing Role: Point-of-load clamp on 22V VCC rail feeding PMICs or flash controller power domains. Use Value: 175pF capacitance avoids signal integrity impact on 22V bias rails, while ±30kV ESD rating ensures compliance with IEC 61000-4-2 Level 4 testing for storage subsystems. |
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 | Same electrical specs, identical DFN 1.6×1.6mm package, but marked "T22" and shipped in 3,000-unit 7″ reels - direct Semtech factory variant of RCLAMP0531TQTCT. | No functional difference; used interchangeably in USB-C and industrial designs per Semtech's ordering documentation. | Select TDS2211P.C for volume procurement with standard Semtech reel packaging and traceability. |
| uClamp2411ZA.TCT | 24V working voltage, ±30kV ESD, but lower 24A IPP rating and higher 30V clamping - optimized for CC/SBU lines, not main VBus. | Intended for lower-energy signal lines (e.g., USB-C CC, SBU); unsuitable for 40A VBus protection due to reduced surge capacity. | Use uClamp2411ZA.TCT only for auxiliary signal protection - not a functional replacement for RCLAMP0531TQTCT on power rails. |
Compared with TDS2211P.C, RCLAMP0531TQTCT shares identical electrical behavior and package but differs in marking and tape-and-reel configuration; versus uClamp2411ZA.TCT, RCLAMP0531TQTCT provides 67% higher peak current rating and 2.5V lower clamping - making it the sole suitable choice for 22V VBus surge protection.
Availability
RCLAMP0531TQTCT is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch inputs, and IoT device power bus protection requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for RCLAMP0531TQTCT 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.
The RCLAMP0531TQTCT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power rail protection where stable clamping and temperature insensitivity are critical.
FAQ
What is the maximum continuous operating voltage for RCLAMP0531TQTCT?
The RCLAMP0531TQTCT has a reverse stand-off voltage (VRWM) of 22V, meaning it is rated for continuous DC operation up to 22V on the protected line. Exceeding this voltage risks increased leakage current and potential degradation. This specification is confirmed in the Semtech datasheet under Electrical Characteristics, with 130–600nA leakage measured at exactly 22V.
Does RCLAMP0531TQTCT meet IEC 61000-4-5 surge immunity standards?
Yes, RCLAMP0531TQTCT is rated for 40A peak pulse current with an 8/20μs waveform per IEC 61000-4-5, and also supports ±1kV combination wave (1.2/50μs voltage, 8/20μs current, RS = 42Ω) for unsymmetrical lines. These values are explicitly listed in the Absolute Maximum Ratings and Electrical Characteristics tables of the official Semtech datasheet.
How does RCLAMP0531TQTCT differ from standard TVS diodes in clamping behavior?
RCLAMP0531TQTCT uses a surge-rated FET and precision trigger circuit instead of a pn-junction, resulting in near-constant clamping voltage (27.5–28V) from 24A to 40A and across –40°C to +125°C. Standard TVS diodes exhibit linear clamping rise (VC = VBR + IPP × RDYN) and significant temperature drift - a key distinction validated in the TDS2211P datasheet's Figure 3 clamping comparison.
What is the junction capacitance of RCLAMP0531TQTCT and where is it specified?
The junction capacitance of RCLAMP0531TQTCT is 175pF, measured at 22V reverse bias and 1MHz frequency. This value is documented in the Electrical Characteristics table of the Semtech datasheet (page 2), under "Junction Capacitance (CJ)", and is stable across temperature as shown in the Typical Characteristics plot on page 4.
Can RCLAMP0531TQTCT be used on USB SuperSpeed (SS) differential pairs?
No, RCLAMP0531TQTCT is not suitable for USB SuperSpeed (TX/RX) differential lanes due to its 175pF capacitance, which would severely degrade signal integrity. Semtech explicitly recommends low-capacitance devices like RClamp3371ZC (<0.25pF) for SS lines, while reserving RCLAMP0531TQTCT for VBus, CC, SBU, or load switch power/control rails - as stated in the Application Information section (page 5).
RCLAMP0531TQTCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0402 (1006 Metric)
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 20V
- Current - Peak Pulse (10/1000µs):
- 4A (8/20µs)
- Power - Peak Pulse:
- 80W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 0.85pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1006P2T
RCLAMP0531TQTCT FAQ
1.How can I place an order for RCLAMP0531TQTCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0531TQTCT 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 RCLAMP0531TQTCT reliable?
The price and inventory of RCLAMP0531TQTCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0531TQTCT is usually 5 days.
3.What payment methods are accepted for RCLAMP0531TQTCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0531TQTCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0531TQTCT?
RCLAMP0531TQTCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0531TQTCT 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 RCLAMP0531TQTCT?
For technical support, including RCLAMP0531TQTCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0531TQTCT requirements.
6.How does Aetrix verify that RCLAMP0531TQTCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0531TQTCT 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 RCLAMP0531TQTCT meets industry standards.
7.What is the process for return or replacement of RCLAMP0531TQTCT?
All RCLAMP0531TQTCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0531TQTCT, 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 RCLAMP0531TQTCT part is unused and in its original packaging.
Return procedure for RCLAMP0531TQTCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP0531TQTCT 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 …
