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Semtech Corporation SC4215JSETRT
- Part No.:
- SC4215JSETRT
- Manufacturer:
- Semtech Corporation
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
SC4215JSETRT.pdf
- Description:
- IC REG LIN POS ADJ 2A 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,492
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Product details
Overview
SC4215JSETRT from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines. It delivers ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and a stable 27.5–28V clamping voltage across temperature and current range. Used in USB Type-C PD input protection, it replaces conventional TVS diodes where low, flat clamping is critical.
For engineers reviewing the SC4215JSETRT datasheet, pinout, applications, or equivalent options, key selection criteria include its constant-clamp FET architecture, DFN 1.6×1.6mm 6-lead package, 22V working voltage, 175pF junction capacitance, and suitability for industrial load switch input protection and USB PD bus safeguarding.
Technical Context
The SC4215JSETRT uses a surge-rated MOSFET as the primary shunt element, activated by an integrated precision trigger circuit that senses overvoltage events. Unlike standard TVS diodes, its clamping voltage remains nearly constant-27.5–28V-across 24A to 40A peak pulse currents and from −40°C to +125°C.
This behavior stems from the FET's ultra-low dynamic resistance (20mΩ) and decreasing RDS(on) under surge, enabling voltage clamping near the trigger circuit's breakdown (~27V). The device protects one unidirectional line with bidirectional ESD capability and operates with <600nA reverse leakage at 22V.
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) - Remains stable across temperature and current, protecting downstream ICs below their 30V damage threshold. |
| Peak Pulse Current | 40A (8/20μs) - Meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD interfaces. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - Eliminates need for external ESD staging in compact USB-C connectors. |
| Junction Capacitance | 175pF at 22V, 1MHz - Low enough for 20V power rail protection without signal integrity impact on adjacent traces. |
| Dynamic Resistance | 20mΩ - Enables flat clamping by minimizing IR drop increase under rising surge current. |
| Package | DFN 1.6mm × 1.6mm × 0.55mm, 6-lead - Enables high-density placement near USB-C receptacles or load switch inputs. |
Pinout & Package
SC4215JSETRT is housed in a Pb-free, RoHS-compliant DFN 1.6mm × 1.6mm × 0.55mm 6-lead package with exposed thermal pad (not electrically connected). Pin 1 is marked by a laser dot; all GND pins must be soldered for full 40A surge rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path; all three pins must be connected to minimize inductance and maximize surge current handling. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS or load switch VIN); parallel connection ensures uniform current sharing and thermal distribution. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp FET architecture | Clamping voltage stays within 27.5–28V from 24A to 40A and −40°C to +125°C-no derating needed for temperature or surge level. |
| High-energy EOS protection | 1120W peak pulse power (8/20μs) enables compliance with IEC 61000-4-5 ±1kV (RS = 42Ω) for industrial equipment. |
| Low dynamic resistance | 20mΩ measured between 1A–40A (8/20μs) ensures minimal voltage overshoot during fast-rising transients. |
| Ultra-low leakage | <600nA at 22V reverse bias minimizes standby power loss in always-on industrial or IoT power rails. |
| Small-footprint DFN | 1.6mm × 1.6mm area saves >50% board space vs. SO-8 or SOT-23 TVS solutions while maintaining 40A rating. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting the VBUS line of a USB-C port supporting up to 20V/5A PD negotiation against lightning surges and connector ESD. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at the connector, clamping transients before they reach the PD controller or DC-DC converter. Use Value: Maintains 27.5–28V clamping across temperature-prevents false OVP trips and avoids overdesigning with higher-voltage TVS devices. |
Use Scenario: Safeguarding the input of high-side load switches (e.g., HS2950P) in remote meters, robotics, and factory automation systems. IC Role / Device Role / Timing Role: Front-end transient suppressor that limits voltage stress on the load switch's internal MOSFET during 40A surge events. Use Value: Prevents gate oxide damage and latch-up by holding clamp voltage well below the switch's absolute maximum VDS rating. |
| IoT Device Power Rail Protection | Notebook/Tablet Main Power Input |
|
Use Scenario: Securing 12–24V input rails in battery-powered edge sensors and wireless gateways exposed to field ESD and induced surges. IC Role / Device Role / Timing Role: Single-component solution replacing multi-stage TVS+MOV networks, reducing BOM count and layout complexity. Use Value: 175pF capacitance avoids filtering interference on supply lines, while ±30kV ESD rating exceeds IEC 61000-4-2 Level 4 requirements. |
Use Scenario: Protecting the main system power input (e.g., barrel jack or USB-C PD port) in portable computing devices operating up to 20V. IC Role / Device Role / Timing Role: First-line defense against user-handling ESD and accidental short-to-VBUS events during hot-plug operations. Use Value: Stable clamping ensures no voltage excursion breaches the 25–30V tolerance of PMICs and buck controllers in the power tree. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Same die, identical electrical specs and package - direct manufacturer-recommended replacement for SC4215JSETRT. | No functional difference; used interchangeably in Semtech reference designs for USB-C PD. | Select when sourcing from Semtech-authorized channels with full traceability and lifecycle support. |
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V VC @ 12.3A (8/20μs), 300pF capacitance, SO-201 package. | Higher clamping voltage increases risk of downstream IC damage; larger footprint and higher leakage (>1μA). | Choose only if legacy design requires SO-201 footprint compatibility and lower cost outweighs clamping performance. |
Compared with TDS2211P and SMAJ22A, SC4215JSETRT offers identical performance to TDS2211P but may differ in marking or reel packaging; versus SMAJ22A, it provides 8V lower clamping, 40% lower capacitance, and 3× higher surge rating in half the area-critical for space-constrained USB-C and industrial PD designs.
Availability
SC4215JSETRT is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and IoT device power rails requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for SC4215JSETRT 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 connectivity.
SC4215JSETRT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability power and interface protection where flat clamping and thermal stability are mandatory.
FAQ
What is the primary function of SC4215JSETRT in a circuit?
The SC4215JSETRT functions as a high-energy transient suppressor for 22V power or I/O lines. It uses a triggered FET architecture to clamp voltage spikes-such as ESD, lightning surges, or EOS events-to a stable 27.5–28V level, protecting downstream components like USB PD controllers or load switches. Its design eliminates the voltage rise with current seen in standard TVS diodes.
Does SC4215JSETRT require external bias or control signals to operate?
No, SC4215JSETRT is fully passive and self-triggering. It contains an integrated precision trigger circuit that activates the internal shunt FET automatically when the input voltage exceeds its breakdown threshold (~27V). No external power, enable pin, or configuration is needed-SC4215JSETRT operates immediately upon installation.
Can SC4215JSETRT be used on bidirectional data lines like USB DP/DM?
No, SC4215JSETRT is designed exclusively for unidirectional power or single-ended I/O line protection (e.g., VBUS, load switch input). Its pinout and internal architecture do not support differential or AC-coupled signal paths. For DP/DM or SS lines, Semtech recommends low-capacitance TVS devices such as RClamp3371ZC-not SC4215JSETRT.
How does SC4215JSETRT's clamping performance compare to standard TVS diodes at elevated temperatures?
Unlike standard TVS diodes-whose clamping voltage rises significantly with temperature-SC4215JSETRT maintains 27.5–28V clamping from −40°C to +125°C. This stability is confirmed in its datasheet curves and results from its FET-based architecture, making SC4215JSETRT especially reliable in thermally demanding environments like industrial enclosures or notebook power stages.
Is the thermal pad on the SC4215JSETRT DFN package electrically connected?
No, the exposed pad on the bottom of the SC4215JSETRT's DFN package is not electrically connected-it serves only as a mechanical anchor and aids in soldering reliability. All six signal/ground terminals are located on the periphery (pins 1–6), and the pad should be soldered to a non-functional copper pour or left unconnected per Semtech's layout guidelines.
SC4215JSETRT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable (Fixed)
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.5V (0.5V)
- Voltage - Output (Max):
- 5.6V
- Voltage Dropout (Max):
- 0.4V @ 2A
- Current - Output:
- 2A
- Current - Quiescent (Iq):
- 50 µA
- Current - Supply (Max):
- 3 mA
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Soft Start
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC, EDP
SC4215JSETRT FAQ
1.How can I place an order for SC4215JSETRT through Aetrix?
Please submit a Request for Quotation (RFQ) for SC4215JSETRT 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 SC4215JSETRT reliable?
The price and inventory of SC4215JSETRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC4215JSETRT is usually 5 days.
3.What payment methods are accepted for SC4215JSETRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC4215JSETRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC4215JSETRT?
SC4215JSETRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC4215JSETRT 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 SC4215JSETRT?
For technical support, including SC4215JSETRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC4215JSETRT requirements.
6.How does Aetrix verify that SC4215JSETRT is sourced from the original manufacturer or authorized distributors?
All SC4215JSETRT 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 SC4215JSETRT meets industry standards.
7.What is the process for return or replacement of SC4215JSETRT?
All SC4215JSETRT units undergo pre-shipment inspection (PSI). If there is an issue with SC4215JSETRT, 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 SC4215JSETRT part is unused and in its original packaging.
Return procedure for SC4215JSETRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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