My Inquiry
My Account
Semtech Corporation SC417MLTRC
- Part No.:
- SC417MLTRC
- Manufacturer:
- Semtech Corporation
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
SC417MLTRC.pdf
- Description:
- IC REG DL BUCK/LNR SYNC 32MLPQ
- Quantity:
- Payment:
- Shipping:
Inventory:4,592
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SC417MLTRC from Semtech is a transient diverting suppressor designed for high-energy EOS protection on 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 20mΩ dynamic resistance. It protects USB Type-C power delivery buses, load switch inputs, and industrial interfaces where stable clamping under temperature and current stress is critical.
For engineers reviewing the SC417MLTRC datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, real-world USB PD and load switch protection use cases, and validated alternative parts with documented functional trade-offs.
Technical Context
The SC417MLTRC 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 across 24–40A (8/20μs) due to decreasing RDS(on) under surge conditions.
It operates from −40°C to +125°C with <600nA reverse leakage at 22V, 175pF junction capacitance at 22V/1MHz, and maintains stable 27.5–28V clamping up to 125°C - a key differentiator versus standard TVS devices whose clamping rises linearly with current and temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal USB PD bus and industrial 24V rail systems without derating. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - stays below 30V damage threshold of most 30V-rated load switches and PD controllers. |
| Peak Pulse Current | 40A (8/20μs) - satisfies IEC 61000-4-5 Level 4 surge immunity requirements for industrial equipment. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds USB IF and IEC 61000-4-2 Class 4 requirements. |
| Dynamic Resistance | 20mΩ - enables low-voltage overshoot during fast transients, reducing stress on downstream ICs. |
| Junction Capacitance | 175pF at 22V/1MHz - suitable for DC power and low-speed signal lines (e.g., CC, SBU, VBus), not high-speed data lanes. |
Pinout & Package
SC417MLTRC is housed in a RoHS-compliant, halogen-free DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad (no solder mask defined). All six terminals are required for full 40A surge rating: three parallel input pins and three parallel ground pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Parallel ground connection - must be tied together with low-inductance routing and multiple vias to internal ground plane for maximum surge current handling. |
| Pins 4, 5, 6 | IN | Parallel protected line input - connects directly to VBus or load switch input; all three pins must be bonded to maintain specified 40A rating and 20mΩ dynamic resistance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across 24–40A (8/20μs) and −40°C to +125°C - eliminates design margin uncertainty vs. TVS diodes. |
| FET-based shunt protection | Surge energy dissipated in low-RDS(on) channel instead of PN junction - enables higher IPP and better thermal stability than silicon avalanche TVS. |
| Low dynamic resistance | 20mΩ measured between 1A–40A - minimizes voltage overshoot during sub-microsecond transients, protecting sensitive gate drivers and controllers. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz) - ensures robust operation in electrically noisy industrial and IoT environments. |
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, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Transient diverting suppressor placed immediately after the connector, clamping surges before they reach the PD controller and load switch. Use Value: Maintains 27.5–28V clamping across temperature and current range - avoids overvoltage damage to 30V-rated PD controllers even at 125°C ambient. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Primary front-end surge protector on VIN rail, limiting transient voltage seen by the switch's internal FET and OVP circuitry. Use Value: Prevents latch-up or gate oxide rupture in load switches by holding clamping voltage well below their absolute maximum ratings (typically 30–36V). |
| IoT Device Power Rail Protection | Storage Device 24V Backup Supply Protection |
Use Scenario: Securing 22V auxiliary power rails in battery-backed smart sensors and edge gateways deployed in uncontrolled environments. IC Role / Device Role / Timing Role: Standalone EOS protector on DC input, replacing bulkier multi-device TVS arrays while meeting IEC 61000-4-5 Level 4. Use Value: 1.6mm × 1.6mm footprint saves >60% board area versus discrete TVS + series resistor solutions - critical for space-constrained IoT modules. |
Use Scenario: Shielding 24V backup power inputs in enterprise SSDs and NAS enclosures against hot-plug transients and field surges. IC Role / Device Role / Timing Role: High-energy clamp on storage controller power domain, coordinated with low-capacitance TVS on data lines (e.g., RClamp3371ZC). Use Value: 1120W peak pulse power rating handles sustained 40A surges without degradation - ensures long-term reliability in mission-critical storage applications. |
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-6 package, identical marking (T22), and same tape-and-reel packaging (3,000/reel). Fully interchangeable. | No functional difference - TDS2211P.C is the official Semtech orderable part number; SC417MLTRC is a legacy or alternate distribution code referencing the same die and assembly. | Select TDS2211P.C for new designs to ensure direct manufacturer support and lifecycle visibility. |
| uClamp2411ZA | 24V working voltage, ±30kV ESD, but lower 20A IPP (8/20μs) and higher 33V clamping at 20A - less robust for industrial surge events. | Targeted at CC/SBU lines in USB-C, not main VBus; lacks parallel-pin architecture for high-current handling. | Use only for auxiliary signal lines; not a functional replacement for SC417MLTRC on power rails requiring 40A surge capability. |
Compared with SC417MLTRC, TDS2211P.C offers identical performance and form factor with guaranteed manufacturer traceability, while uClamp2411ZA serves lower-energy signal-line roles and cannot meet the 40A/22V power-rail protection requirement.
Availability
SC417MLTRC is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT device power rails requiring stable component supply, long-term lifecycle assurance, and compliance with IEC 61000-4-2/4-4/4-5 standards.
Supply support for SC417MLTRC 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 SC417MLTRC belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power rail protection where constant clamping and thermal stability are mandatory.
FAQ
What is the exact package type and dimensions of SC417MLTRC?
SC417MLTRC uses a 6-pin DFN package measuring 1.6mm × 1.6mm × 0.55mm with no exposed thermal pad requiring solder mask opening. Pin 1 is marked by a laser dot; pins 1–3 are GND, pins 4–6 are IN. The land pattern follows Semtech's recommended outline with 0.30mm pitch and 0.50mm pad width.
Does SC417MLTRC require external components for basic operation?
No, SC417MLTRC is a fully integrated transient suppressor requiring no external resistors, capacitors, or bias networks. It operates passively - connecting pins 4–6 to the protected line and pins 1–3 to system ground provides complete protection per IEC 61000-4-2/4-5. PCB layout must minimize trace inductance via short, wide traces and multiple ground vias.
How does SC417MLTRC differ from standard TVS diodes in clamping behavior?
Unlike TVS diodes whose clamping voltage rises linearly with peak pulse current (VC = VBR + IPP × RDYN), SC417MLTRC maintains 27.5–28V clamping from 24A to 40A due to its FET-based shunt architecture. Its dynamic resistance drops under surge, yielding flat clamping across current and temperature - a measurable advantage confirmed in Figure 3 of the Semtech datasheet.
Can SC417MLTRC protect high-speed data lines like USB SuperSpeed or PCIe?
No, SC417MLTRC is not suitable for high-speed data lines. With 175pF junction capacitance at 22V, it would severely degrade signal integrity on >100MHz interfaces. It is intended exclusively for DC power rails (VBus, load switch inputs) and low-speed control lines (CC, SBU) - high-speed lanes require sub-0.3pF devices like RClamp3371ZC.
Is SC417MLTRC compliant with automotive AEC-Q200 or industrial safety standards?
SC417MLTRC is not AEC-Q200 qualified. It meets industrial-grade reliability per its −40°C to +125°C operating range and IEC 61000-4-2/4-4/4-5 compliance, but lacks automotive qualification testing (e.g., temperature cycling, vibration, humidity). For automotive applications, Semtech recommends evaluating AEC-Q200-qualified alternatives separately.
SC417MLTRC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- EcoSpeed®, SmartDrive™
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Topology:
- Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
- Number of Outputs:
- 2
- Frequency - Switching:
- 1MHz
- Voltage/Current - Output 1:
- Adj, 10A
- Voltage/Current - Output 2:
- 5V, 200mA
- Voltage/Current - Output 3:
- -
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 3V ~ 28V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-MLPQ (5x5)
SC417MLTRC FAQ
1.How can I place an order for SC417MLTRC through Aetrix?
Please submit a Request for Quotation (RFQ) for SC417MLTRC 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 SC417MLTRC reliable?
The price and inventory of SC417MLTRC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC417MLTRC is usually 5 days.
3.What payment methods are accepted for SC417MLTRC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC417MLTRC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC417MLTRC?
SC417MLTRC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC417MLTRC 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 SC417MLTRC?
For technical support, including SC417MLTRC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC417MLTRC requirements.
6.How does Aetrix verify that SC417MLTRC is sourced from the original manufacturer or authorized distributors?
All SC417MLTRC 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 SC417MLTRC meets industry standards.
7.What is the process for return or replacement of SC417MLTRC?
All SC417MLTRC units undergo pre-shipment inspection (PSI). If there is an issue with SC417MLTRC, 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 SC417MLTRC part is unused and in its original packaging.
Return procedure for SC417MLTRC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SC417MLTRC Tags
-
TPS6521905RHBR
Texas Instruments
-
MIC3385YHL-TR
Microchip Technology
-
A4402ELPTR-T
Allegro MicroSystems
-
LM26480SQ-AA/NOPB
Texas Instruments
-
A4402KLPTR-T
Allegro MicroSystems
-
BD71847AMWV-E2
ROHM Semiconductor
-
ADP5040ACPZ-1-R7
Analog Devices Inc.
-
LT3048IDC#TRPBF
Analog Devices Inc.
-
ADP5037ACPZ-R7
Analog Devices Inc.
-
XRP7714ILB-F
MaxLinear, Inc.
-
LTC3260EDE#TRPBF
Analog Devices Inc.
-
LTC3260EMSE#PBF
Analog Devices Inc.
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 …
