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Semtech Corporation SC701HCSTRT
- Part No.:
- SC701HCSTRT
- Manufacturer:
- Semtech Corporation
- Package:
- 6-WFBGA, CSPBGA
- Datasheet:
-
SC701HCSTRT.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 6CSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,218
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Product details
Overview
SC701HCSTRT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 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 24–40A, and 20mΩ dynamic resistance - deployed in USB PD, USB Type-C, and industrial load switch input protection.
For engineers reviewing the SC701HCSTRT datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, clamping stability across temperature, and direct alternatives for 22V bus protection with constant-voltage surge response.
Technical Context
The SC701HCSTRT 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 - enabling near-constant clamping voltage independent of peak pulse current magnitude. Its operation avoids the linear VC = VBR + IPP × RDYN behavior typical of conventional TVS diodes.
Clamping remains stable from –40°C to +125°C due to low RDS(on) reduction under surge, with guaranteed 27.5–28V clamping at both 24A and 40A (1.2/50μs voltage + 8/20μs current combination waveform, RS = 2Ω), and junction capacitance of 175pF at 22V/1MHz - critical for minimizing signal distortion on protected lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC or RMS operating voltage on protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 24–40A - ensures downstream ICs (e.g., USB PD controllers) remain below damage threshold during surge events. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 22V systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD robustness standards without degradation. |
| Dynamic Resistance | 20mΩ - enables flat clamping curve and minimizes voltage overshoot during fast-rising transients. |
| Junction Capacitance | 175pF at 22V/1MHz - low enough for 22V power rail protection without compromising signal integrity on adjacent traces. |
Pinout & Package
SC701HCSTRT is housed in a RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad not required - all six terminals are functional: three dedicated ground pins (1–3) and three parallel input pins (4–6) for low-inductance, high-current surge path routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground connection points - must all be connected to minimize parasitic inductance and maximize 40A surge current handling. |
| 4, 5, 6 | IN | Parallel-connected input terminals for protected bus - equal current sharing ensures uniform stress distribution and thermal stability during 8/20μs surges. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across full 24–40A range - eliminates design margin inflation needed with conventional TVS diodes. |
| Temperature-stable protection | Clamping remains 27.5–28V from –40°C to +125°C - removes thermal derating calculations for industrial and automotive ambient conditions. |
| Low dynamic resistance | 20mΩ measured between 1A–40A (8/20μs) - reduces voltage overshoot during sub-microsecond ESD rise times. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - supports repeated lightning-surge exposure in remote metering and IoT edge nodes. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBUS lines in USB Type-C ports supporting up to 20V/5A PD negotiation, exposed to ESD and system-level surges. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at connector, shunting EOS energy to ground before reaching PD controller or load switch. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents false overvoltage shutdown or latch-up in PD controllers rated for ≤30V absolute max. |
Use Scenario: Safeguarding input of industrial-grade load switches (e.g., HS2950P) in robotics, remote meters, and factory automation equipment. IC Role / Device Role / Timing Role: Primary front-end surge clamp on VIN rail, limiting transient voltage seen by internal FET gate oxide and overvoltage protection circuitry. Use Value: Keeps clamping voltage below 28V - well under typical 30–36V absolute maximum ratings of industrial load switches, avoiding permanent gate damage. |
| IoT Edge Node Power Bus Protection | Storage Device 22V Rail Protection |
Use Scenario: Securing 22V auxiliary rails in battery-backed IoT gateways and cellular modems subject to induced lightning surges and connector hot-plug transients. IC Role / Device Role / Timing Role: Standalone EOS protector on main power input, operating in parallel with upstream e-fuse or PMIC. Use Value: Delivers 40A surge capability in 1.6×1.6mm footprint - enables compact, high-reliability designs without discrete MOV+TVS cascades. |
Use Scenario: Protecting 22V supply rails in NVMe SSD enclosures and enterprise storage backplanes exposed to ESD during hot-swap operations. IC Role / Device Role / Timing Role: Low-capacitance (175pF) transient suppressor on power delivery path, co-located with connector to minimize trace inductance. Use Value: Limits clamping to ≤28V during 1.2/50μs surges - preserves integrity of 24V-rated power management ICs and flash memory controllers. |
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 shared Semtech datasheet Rev 2.5 - confirmed pin-to-pin and functionally identical. | No difference - validated for identical USB PD, load switch, and industrial 22V rail use cases. | Select TDS2211P.C when requiring Semtech's standard tape-and-reel packaging (3,000 pcs/reel) and official part number traceability. |
| uClamp2411ZA | 24V working voltage, ±30kV ESD, but lower 20A IPP rating and higher 30V clamping - uses silicon avalanche diode architecture, not FET-based TDS. | Suitable only for CC/SBU lines or lower-energy 24V rails where 20A surge margin suffices; not recommended for 40A VBUS or load switch inputs. | Choose uClamp2411ZA only for secondary protection on auxiliary lines - not a drop-in replacement for SC701HCSTRT's primary 22V/40A role. |
Compared with TDS2211P.C (identical) and uClamp2411ZA (lower IPP, higher VC), SC701HCSTRT delivers guaranteed 40A surge handling and 27.5–28V clamping - making it the sole option for robust 22V bus protection where constant-voltage response and thermal stability are mandatory.
Availability
SC701HCSTRT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT edge node power buses requiring stable component supply with guaranteed EOS protection performance.
Supply support for SC701HCSTRT 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 SC701HCSTRT belongs to Semtech's Transient Diverting Suppressor (TDS) product line - engineered specifically to replace conventional TVS diodes in high-reliability 22V power rail protection with flat clamping and temperature-invariant surge response.
FAQ
What is the exact package type and dimensions of SC701HCSTRT?
SC701HCSTRT uses a 6-pin DFN package measuring 1.6mm × 1.6mm × 0.55mm with no exposed thermal pad. Pins 1–3 are GND; pins 4–6 are IN. All six terminals must be soldered per Semtech's layout guidelines to achieve rated 40A surge performance - the land pattern matches standard DFN-6 footprints with 0.5mm pitch.
Does SC701HCSTRT meet IEC 61000-4-5 surge immunity standards?
Yes, SC701HCSTRT is rated for 40A peak pulse current with 8/20μs waveform per IEC 61000-4-5, and also supports ±1kV unsymmetrical surge testing (1.2/50μs voltage + 8/20μs current, RS = 42Ω). Its 27.5–28V clamping ensures protected circuits remain within safe operating limits during these standardized industrial surge events.
How does SC701HCSTRT differ from standard TVS diodes in clamping behavior?
Unlike conventional TVS diodes whose clamping voltage rises linearly with peak current (VC = VBR + IPP × RDYN), SC701HCSTRT uses a triggered FET architecture that maintains 27.5–28V clamping from 24A to 40A - confirmed across –40°C to +125°C. This eliminates thermal derating and simplifies margin analysis for 22V systems.
Can SC701HCSTRT be used for USB Type-C VBUS protection alongside RClamp3371ZC?
Yes - SC701HCSTRT is specified for USB Type-C VBUS protection in Semtech's reference design, where it handles high-energy surges on the 20–22V power line, while RClamp3371ZC (low-capacitance TVS) protects high-speed SS TX/RX lines. Their roles are complementary: SC701HCSTRT for power rail, RClamp3371ZC for data integrity.
What is the maximum junction temperature and storage range for SC701HCSTRT?
SC701HCSTRT has a junction and storage temperature range of –55°C to +150°C, with an operating temperature range of –40°C to +125°C. Its clamping voltage remains stable across this full operating range - a key differentiator from TVS diodes whose VC typically increases with temperature.
SC701HCSTRT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 6-WFBGA, CSPBGA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- -
- Voltage - Load:
- 0V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 5.5V
- Current - Output (Max):
- 4A
- Rds On (Typ):
- 8mOhm
- Input Type:
- Non-Inverting
- Features:
- Slew Rate Controlled
- Fault Protection:
- Over Voltage
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-CSP (0.9x1.4)
SC701HCSTRT FAQ
1.How can I place an order for SC701HCSTRT through Aetrix?
Please submit a Request for Quotation (RFQ) for SC701HCSTRT 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 SC701HCSTRT reliable?
The price and inventory of SC701HCSTRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC701HCSTRT is usually 5 days.
3.What payment methods are accepted for SC701HCSTRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC701HCSTRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC701HCSTRT?
SC701HCSTRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC701HCSTRT 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 SC701HCSTRT?
For technical support, including SC701HCSTRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC701HCSTRT requirements.
6.How does Aetrix verify that SC701HCSTRT is sourced from the original manufacturer or authorized distributors?
All SC701HCSTRT 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 SC701HCSTRT meets industry standards.
7.What is the process for return or replacement of SC701HCSTRT?
All SC701HCSTRT units undergo pre-shipment inspection (PSI). If there is an issue with SC701HCSTRT, 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 SC701HCSTRT part is unused and in its original packaging.
Return procedure for SC701HCSTRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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