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Semtech Corporation SC2595STRT
- Part No.:
- SC2595STRT
- Manufacturer:
- Semtech Corporation
- Category:
- Special Purpose Regulators
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
SC2595STRT.pdf
- Description:
- IC REG LDO DDR 1OUT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,601
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Product details
Overview
SC2595STRT 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 stable 27.5–28V clamping across temperature and current range. It protects USB PD and Type-C VBus inputs in industrial and portable electronics.
For engineers reviewing the SC2595STRT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability under surge, low dynamic resistance (20 mΩ), junction capacitance (175 pF), and DFN 1.6×1.6mm package compatibility with high-density USB PD layouts.
Technical Context
The SC2595STRT 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-27.5–28V at 24A and 40A-due to decreasing RDS(on) under surge conditions.
It operates over –40°C to +125°C, maintains <600 nA reverse leakage at 22V, and exhibits stable 175 pF junction capacitance at 1 MHz and 22V bias. Its functional architecture enables robust protection for unsymmetrical lines per IEC 61000-4-5 (±1kV, 1.2/50μs + 8/20μs, RS = 42Ω).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22 V - matches nominal USB PD VBus up to 20V with 2V margin for transients |
| Clamping Voltage | 27.5–28 V at 40A (8/20μs) - ensures protected ICs (e.g., PD controllers) remain below damage threshold |
| Peak Pulse Current | 40 A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity requirements |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds industrial and consumer ESD immunity standards |
| Dynamic Resistance | 20 mΩ - enables low-voltage drop during high-current surge conduction |
| Junction Capacitance | 175 pF at 22V, 1 MHz - compatible with DC/low-frequency bus protection without signal integrity impact |
| Package | DFN 1.6 × 1.6 × 0.55 mm, 6-lead - supports compact placement near USB Type-C connectors |
Pinout & Package
SC2595STRT is housed in a Pb-free, RoHS-compliant DFN 1.6 mm × 1.6 mm × 0.55 mm package with exposed thermal pad not required (energy dissipated in silicon). All six terminals are electrically active: three GND pins (1–3) and three IN pins (4–6), requiring parallel connection for full 40A rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to minimize inductance and maximize current handling |
| 4, 5, 6 | IN | Input terminal for protected line (e.g., VBus); parallel connection ensures uniform current sharing and full 40A capability |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage | 27.5–28 V across 24–40A and –40°C to +125°C - eliminates derating concerns in thermally demanding environments |
| FET-based shunt architecture | Replaces PN-junction TVS with low-RDS(on) switch - avoids linear VC = VBR + IPP×RDYN rise seen in diode-based devices |
| High EFT immunity | ±4 kV per IEC 61000-4-4 (5/50 ns, 5 kHz & 100 kHz) - protects against repetitive burst noise in industrial control systems |
| Low leakage | <600 nA at 22 V - prevents measurable power loss in always-on battery-powered IoT nodes |
| UL 94V-0 molding compound | Flame-retardant encapsulation - satisfies safety compliance for enclosed industrial and medical equipment |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting the VBus line of a USB Type-C port supporting up to 20V/5A PD negotiation in notebooks and docking stations. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at the connector to clamp lightning-induced surges and ESD before reaching the PD controller. Use Value: Maintains 27.5–28V clamping across temperature and current, preventing overvoltage damage to sensitive PD ICs where traditional TVS would exceed safe limits at elevated ambient. |
Use Scenario: Safeguarding the input of an industrial-grade load switch (e.g., HS2950P) in remote metering or robotics systems exposed to field surges. IC Role / Device Role / Timing Role: Primary EOS protection device shunting transient energy away from the load switch's internal FET drain-source path. Use Value: Limits clamping voltage to ≤28V, staying well below typical 30–40V FET breakdown thresholds and avoiding destructive gate oxide stress during 1.2/50μs surges. |
| IoT Edge Node Power Bus Protection | Storage Device DC Power Rail Protection |
|
Use Scenario: Securing the 22V-rated auxiliary power rail of a battery-backed smart sensor node deployed in unshielded outdoor enclosures. IC Role / Device Role / Timing Role: Standalone EOS protector on the main DC input, coordinated with upstream fuse and downstream LDO. Use Value: Delivers ±30kV ESD immunity and 40A surge handling while consuming only 600 nA leakage-critical for multi-year battery life in low-duty-cycle deployments. |
Use Scenario: Protecting the 22V supply rail of NVMe SSD modules or enterprise HDD backplanes subject to hot-swap transients and system-level ESD. IC Role / Device Role / Timing Role: High-energy transient suppressor mounted adjacent to power entry connector to prevent latch-up or burnout in PMICs and flash controllers. Use Value: Stable 175 pF capacitance avoids resonance issues on long PCB traces, and constant clamping ensures consistent protection margin regardless of ambient temperature drift. |
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 1.6×1.6mm package, identical pinout and marking (T22XX), manufactured by Semtech | No functional difference; TDS2211P.C is the official Semtech orderable part number for this device | Select TDS2211P.C when direct manufacturer traceability and standard reel packaging (3,000 pcs/reel) are required |
| uClamp2411ZA | 24V working voltage, lower 24A IPP rating, higher 30V clamping, smaller 0.6×0.3mm DFN package | Targeted at CC/SBU lines-not rated for VBus-level energy; insufficient for 40A surge or 22V continuous bus protection | Use uClamp2411ZA only for auxiliary signal-line protection; not a functional substitute for SC2595STRT in power-rail roles |
Compared with TDS2211P.C (identical specification) and uClamp2411ZA (lower energy rating), SC2595STRT provides verified 40A surge capacity and 22V working voltage essential for USB PD VBus and industrial load switch inputs-making it the only suitable choice for high-energy, high-voltage DC rail protection.
Availability
SC2595STRT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch interfaces, and IoT edge node power buses requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for SC2595STRT 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.
The SC2595STRT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-energy, temperature-critical DC power rail protection applications.
FAQ
What is the maximum operating temperature range for SC2595STRT?
The SC2595STRT is rated for continuous operation from –40°C to +125°C. Its clamping voltage remains stable across this full range, with no degradation in 27.5–28V performance at 40A surge current. This makes SC2595STRT suitable for under-hood automotive accessories, industrial motor drives, and sealed outdoor IoT enclosures where ambient temperatures exceed 85°C.
Does SC2595STRT require a thermal pad on the PCB?
No, SC2595STRT does not require a thermal pad. Unlike power MOSFETs or regulators, it dissipates surge energy within the silicon die rather than relying on conduction through an exposed pad. The DFN package's bottom surface is non-conductive; layout guidelines emphasize low-inductance grounding via multiple vias to pins 1–3 instead of thermal relief.
Can SC2595STRT be used to protect USB SuperSpeed differential pairs?
No, SC2595STRT is not suitable for USB SuperSpeed (TX/RX) lines. Its 175 pF junction capacitance would severely degrade signal integrity at 10 Gbps. For those lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25 pF). SC2595STRT is intended exclusively for VBus, CC, SBU, or other single-ended DC rails-not high-speed data paths.
How does SC2595STRT differ from standard TVS diodes in clamping behavior?
Standard TVS diodes exhibit rising clamping voltage with increasing peak pulse current (VC = VBR + IPP × RDYN). SC2595STRT uses a triggered FET architecture that maintains ~27.5–28V clamping from 24A to 40A-and holds that level across –40°C to +125°C. This eliminates design uncertainty caused by temperature- and current-dependent clamping drift in traditional solutions.
Is SC2595STRT pin-compatible with other Semtech TDS devices?
SC2595STRT shares the same 6-pin DFN 1.6×1.6mm footprint and pin configuration (pins 1–3 = GND, pins 4–6 = IN) with TDS2211P.C and TDS1211P. However, voltage ratings differ: TDS1211P is rated for 12V, so substituting it on a 22V rail would cause catastrophic failure. Always verify working voltage match-mechanical compatibility does not imply electrical interchangeability.
SC2595STRT 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:
- Obsolete
- Applications:
- LDO (Linear), DDR
- Voltage - Input:
- 2.5V ~ 5V
- Number of Outputs:
- 1
- Voltage - Output:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC, EDP
SC2595STRT FAQ
1.How can I place an order for SC2595STRT through Aetrix?
Please submit a Request for Quotation (RFQ) for SC2595STRT 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 SC2595STRT reliable?
The price and inventory of SC2595STRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC2595STRT is usually 5 days.
3.What payment methods are accepted for SC2595STRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC2595STRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC2595STRT?
SC2595STRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC2595STRT 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 SC2595STRT?
For technical support, including SC2595STRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC2595STRT requirements.
6.How does Aetrix verify that SC2595STRT is sourced from the original manufacturer or authorized distributors?
All SC2595STRT 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 SC2595STRT meets industry standards.
7.What is the process for return or replacement of SC2595STRT?
All SC2595STRT units undergo pre-shipment inspection (PSI). If there is an issue with SC2595STRT, 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 SC2595STRT part is unused and in its original packaging.
Return procedure for SC2595STRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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