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Semtech Corporation SCPA05F
- Part No.:
- SCPA05F
- Manufacturer:
- Semtech Corporation
- Category:
- Diode Arrays
- Package:
- Module
- Datasheet:
-
SCPA05F.pdf
- Description:
- DIODE ARRAY GEN PURP 50V 7.5A
- Quantity:
- Payment:
- Shipping:
Inventory:8,839
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Product details
Overview
SCPA05F from Semtech is a Transient Diverting Suppressor designed for single-line 5V EOS protection in high-reliability I/O and power bus applications. It delivers ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), constant 7.5V clamping voltage up to 40A, and operates from −40°C to +125°C. It protects USB Type-C CC/SBU lines, industrial sensor interfaces, and low-voltage load switch inputs.
For engineers reviewing the SCPA05F datasheet, pinout, applications, or equivalent options, key selection criteria include its 5V working voltage, ultra-low dynamic resistance (15 mΩ), 120 pF junction capacitance at 5V, stable clamping across temperature, and DFN 1.0×1.0×0.5mm 6-pin package optimized for space-constrained USB PD and IoT designs.
Technical Context
The SCPA05F uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events. Unlike conventional TVS diodes, its clamping voltage remains nearly constant (7.5V) across the full 1–40A peak pulse current range due to the FET's collapsing RDS(on).
It features a three-terminal shunt architecture with dedicated IN (pins 4–6) and GND (pins 1–3) groups, enabling robust 40A surge handling via parallel pin conduction. Its 120 pF capacitance at 5V reverse bias ensures minimal signal distortion on low-speed control lines like USB CC/SBU and industrial GPIOs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 5 V - Matches standard USB PD CC line nominal voltage; prevents false triggering during normal operation. |
| Clamping Voltage (VC) | 7.5 V @ 40A (8/20μs) - Remains stable across temperature and current; stays below 8.5 V threshold of most 5V logic and PMICs. |
| Peak Pulse Current (IPP) | 40 A (8/20μs) - Meets IEC 61000-4-5 Level 4 surge immunity for industrial and USB PD applications. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - Exceeds automotive and industrial ESD requirements without derating. |
| Junction Capacitance (CJ) | 120 pF @ 5 V, 1 MHz - Low enough for USB CC/SBU and industrial control lines; avoids signal integrity issues. |
| Dynamic Resistance (RDYN) | 15 mΩ - Enables flat clamping curve; reduces voltage overshoot during fast transients compared to TVS diodes. |
| Operating Temperature | −40°C to +125°C - Fully specified performance across automotive under-hood and industrial ambient ranges. |
Pinout & Package
SCPA05F is housed in a Pb-free, RoHS-compliant DFN package measuring 1.0 mm × 1.0 mm × 0.5 mm with 6 leads and UL 94V-0 molding compound. The package includes exposed thermal pad (non-electrical) and laser-marked pin 1 indicator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return path; all three must be connected to maximize surge current sharing and minimize parasitic inductance. |
| Pins 4, 5, 6 | IN | Protected line input; parallel connection enables 40A rating; requires direct routing from connector to device with minimal trace length. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | 7.5 V clamping maintained from 1A to 40A and −40°C to +125°C - eliminates design margin uncertainty vs. TVS diodes. |
| Ultra-low dynamic resistance | 15 mΩ - minimizes IR drop during surge, enabling tighter voltage compliance for 5V-sensitive controllers. |
| Low leakage & high temp stability | <200 nA @ 5 V, −40°C to +125°C - prevents battery drain in always-on IoT nodes and maintains protection integrity at extremes. |
| Space-optimized footprint | 1.0 mm × 1.0 mm - saves >50% board area vs. legacy SO-8 or SOT-23 TVS solutions for same 40A rating. |
| USB Type-C CC/SBU optimized | 5 V VRWM, 120 pF CJ, ±30 kV ESD - meets USB-IF spec requirements for CC line protection without external RC filtering. |
Applications
| USB Type-C CC Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting USB Type-C Configuration Channel (CC) pins against ESD and lightning-induced surges in portable chargers and host adapters. IC Role / Device Role / Timing Role: Shunt-based transient suppressor placed directly at the USB-C receptacle, clamping transients before they reach the CC controller IC. Use Value: Prevents latch-up or permanent damage to 5V-tolerant CC logic while maintaining <120 pF loading to preserve USB PD negotiation timing integrity. |
Use Scenario: Safeguarding analog/digital sensor inputs (e.g., 4–20 mA loop receivers, RS-485 transceivers) in factory automation panels exposed to relay switching noise. IC Role / Device Role / Timing Role: Primary front-end EOS protector on low-voltage signal lines interfacing with field wiring harnesses. Use Value: Ensures uninterrupted operation under repeated ±1 kV surge events (IEC 61000-4-5) without parameter drift or degradation over 10+ years. |
| Load Switch Input Protection | IoT Device Power Rail Clamping |
Use Scenario: Shielding the VIN pin of 5V-input load switches (e.g., TPS229xx, AP22653) in smart meters and PoE-powered edge devices. IC Role / Device Role / Timing Role: Secondary protection stage downstream of bulk TVS, limiting clamping voltage to prevent internal FET avalanche failure. Use Value: Extends load switch lifetime by holding clamped voltage ≤7.5 V - well below typical 8.5 V absolute maximum VIN rating. |
Use Scenario: Securing 5V system rails in battery-backed wireless sensors subjected to ESD during handling and installation in harsh environments. IC Role / Device Role / Timing Role: Standalone rail clamp on main 5V supply feeding MCU, RF SoC, and peripherals. Use Value: Delivers 40A surge capability with zero derating at +85°C ambient - critical for sealed enclosures with limited airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| uClamp0501P.TCT | 5V VRWM, 12 pF CJ, 12A IPP, 12V clamping - lower capacitance but 3× lower surge rating. | Better for high-speed data lines (e.g., USB 2.0 DM/DP); insufficient for 40A industrial surge standards. | Select uClamp0501P.TCT only when signal bandwidth >100 MHz and surge threat is ESD-only (not lightning). |
| TDS5011P | 5V VRWM, 7.5V clamping, 40A IPP, 130 pF CJ - identical electrical specs but larger 1.6×1.6 mm DFN package. | Same protection performance; occupies 2.56× more PCB area - unsuitable for ultra-compact USB-C connectors. | Choose TDS5011P only if thermal dissipation demands larger copper pour or rework tolerance is prioritized over miniaturization. |
Compared with uClamp0501P.TCT and TDS5011P, SCPA05F uniquely combines 40A surge capability, 7.5V clamping, and 1.0×1.0 mm footprint - making it the only option for space-constrained 5V systems requiring full IEC 61000-4-5 Level 4 compliance without layout compromise.
Availability
SCPA05F is available at Aetrix Electronics and suitable for USB Type-C implementations, industrial sensor nodes, and IoT power rail protection requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for SCPA05F 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 high-performance analog and mixed-signal ICs for precision protection, sensing, and connectivity.
The SCPA05F belongs to Semtech's Transient Diverting Suppressor (TDS) family, engineered to replace conventional TVS diodes in applications demanding flat clamping, high surge endurance, and temperature-stable performance - especially in USB PD, industrial IoT, and automotive body electronics.
FAQ
What is the maximum clamping voltage of SCPA05F at 40A surge current?
The SCPA05F clamps at 7.5 V under 40A (8/20μs) peak pulse current per IEC 61000-4-5. This value is guaranteed across −40°C to +125°C and remains stable due to its FET-based shunt architecture - unlike TVS diodes whose clamping rises linearly with current. The 7.5 V clamping ensures compatibility with 5V logic rails and USB PD CC controllers.
Does SCPA05F require a thermal pad on the PCB?
No, SCPA05F does not require a thermal pad. Its DFN 1.0×1.0×0.5 mm package dissipates surge energy through its low-RDS(on) FET structure rather than junction heating, and the datasheet explicitly states "no thermal pad is needed." Instead, robust grounding via all three GND pins (1–3) and short, wide traces to the ground plane are essential for optimal 40A surge performance.
Can SCPA05F be used on USB 2.0 data lines (D+/D−)?
No, SCPA05F is not recommended for USB 2.0 D+/D− lines. Its 120 pF junction capacitance at 5V would severely degrade signal integrity and fail USB 2.0 eye diagram requirements. For D+/D− protection, Semtech recommends low-capacitance devices like RClamp0524P (0.35 pF). SCPA05F is optimized for low-speed, high-reliability lines such as USB CC, SBU, and industrial GPIOs.
How does SCPA05F differ from standard TVS diodes in surge response?
SCPA05F uses a triggered FET shunt instead of a pn-junction avalanche structure. This yields near-constant 7.5 V clamping from 1A to 40A and −40°C to +125°C, whereas TVS diodes exhibit rising clamping (e.g., VC = VBR + IPP × RDYN). SCPA05F's 15 mΩ dynamic resistance also lowers voltage overshoot during sub-100 ns ESD events, improving system-level robustness beyond what standard TVS diodes achieve.
Is SCPA05F compatible with lead-free reflow soldering profiles?
Yes, SCPA05F is fully compatible with standard IPC/JEDEC J-STD-020D lead-free reflow profiles, including peak temperatures up to 260°C. Its Pb-free, halogen-free construction and UL 94V-0 molding compound meet RoHS/WEEE requirements. The device's small 1.0×1.0 mm footprint also supports fine-pitch stencil printing and automated optical inspection (AOI) in high-volume manufacturing.
SCPA05F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Diode Configuration:
- -
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io) (per Diode):
- 7.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 50 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- -
SCPA05F FAQ
1.How can I place an order for SCPA05F through Aetrix?
Please submit a Request for Quotation (RFQ) for SCPA05F 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 SCPA05F reliable?
The price and inventory of SCPA05F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SCPA05F is usually 5 days.
3.What payment methods are accepted for SCPA05F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SCPA05F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SCPA05F?
SCPA05F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SCPA05F 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 SCPA05F?
For technical support, including SCPA05F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SCPA05F requirements.
6.How does Aetrix verify that SCPA05F is sourced from the original manufacturer or authorized distributors?
All SCPA05F 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 SCPA05F meets industry standards.
7.What is the process for return or replacement of SCPA05F?
All SCPA05F units undergo pre-shipment inspection (PSI). If there is an issue with SCPA05F, 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 SCPA05F part is unused and in its original packaging.
Return procedure for SCPA05F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SCPA05F Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
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