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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Semtech Corporation SCF5000

Name: SCF5000
Brand: Semtech Corporation
SKU: SCF5000
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SCF5000

Manufacturer:: Semtech Corporation

Category:: Single Diodes

Package:: Axial

Datasheet:: SCF5000.pdf

Description:: DIODE GEN PURP 5KV 500MA AXIAL

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Product details

Overview

SCF5000 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), and stable 27.5–28V clamping across temperature and current range - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.

For engineers reviewing the SCF5000 datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (DFN 1.6×1.6mm, 6-lead), confirmed clamping stability under 40A surge, thermal robustness to +125°C, and real-world use cases including USB PD bus protection and e-fuse input safeguarding - all grounded in Semtech's TDS2211P reference design lineage.

Technical Context

The SCF5000 implements a surge-rated FET as its primary shunt element, activated by a precision trigger circuit that senses overvoltage transients and drives the FET into low-R_DS(on) conduction. Unlike conventional TVS diodes, its clamping voltage remains nearly constant (27.5–28V) from 24A to 40A peak pulse current due to dynamic R_DS(on) reduction.

It operates with 22V reverse stand-off voltage, 25–27.9V breakdown, and 20mΩ dynamic resistance (8/20μs), enabling reliable protection of 20–22V systems such as USB PD power buses and industrial load switch inputs without thermal derating penalties up to +125°C ambient.

Key Specifications

Parameter	Value and Actual Design Meaning
Working Voltage	22V - defines maximum continuous DC operating voltage on protected line without leakage or degradation
Clamping Voltage	27.5–28V at 40A (8/20μs + 1.2/50μs combo wave, R_S=2Ω) - ensures downstream ICs (e.g., USB PD controllers) remain below damage threshold during surge
Peak Pulse Current	40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements
ESD Withstand	±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD immunity standards
Junction Capacitance	175pF @ 22V, 1MHz - low enough for 22V power rail protection without signal integrity impact
Dynamic Resistance	20mΩ (8/20μs, 1A→40A) - enables flat clamping curve and minimal V_C rise with increasing surge magnitude
Operating Temperature	−40°C to +125°C - supports deployment in harsh industrial and automotive under-hood environments

Pinout & Package

SCF5000 is housed in a RoHS-compliant DFN package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad (no solder mask defined), lead-free finish, and UL 94V-0 molding compound.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3	GND	Common ground return path for surge current - all three pins must be connected to maximize current sharing and minimize parasitic inductance
4, 5, 6	IN	Protected line input - connects directly to V_Bus or I/O trace; all three pins must be tied together externally for full 40A rating

Key Features

Feature	Design Value
Constant-clamp architecture	Clamping voltage varies <0.5V across 24–40A surge range - eliminates need for overrating IPP to meet V_C limits
Temperature-stable protection	V_C remains 27.5–28V from −40°C to +125°C - removes thermal derating uncertainty in industrial deployments
Low dynamic resistance	20mΩ enables efficient energy diversion with minimal IR drop - critical for protecting sensitive load switches and PD controllers
High-energy EOS handling	1120W peak pulse power (8/20μs) - sustains multi-event surge exposure without parametric shift or failure
Small-footprint DFN	1.6×1.6mm area saves >60% board space vs. legacy SO-8 or SOT-23 TVS solutions - ideal for compact USB-C and IoT designs

Applications

USB Type-C Power Delivery Bus Protection	Industrial Load Switch Input Protection
Use Scenario: Protecting 20V–22V V_Bus lines in USB-C receptacles against lightning-induced surges and contact ESD events. IC Role / Device Role / Timing Role: Primary front-end transient suppressor placed between connector and USB PD controller or buck converter input. Use Value: Maintains 27.5–28V clamping at 40A and +125°C - prevents latch-up or gate oxide damage in PD controllers where traditional TVS would exceed 35V at elevated temperature.	Use Scenario: Safeguarding enable and input pins of high-side load switches (e.g., HS2950P) in remote meters and robotics. IC Role / Device Role / Timing Role: Surge shunt device placed upstream of load switch VIN pin to clamp transients before they reach internal FET gate/drain. Use Value: Limits clamping voltage to ≤28V - well below typical 30V+ absolute maximum ratings of industrial load switches, preventing catastrophic FET failure during 1kV/42Ω surges.
IoT Edge Node Power Rail Protection	Storage Device 22V Backup Supply Protection
Use Scenario: Securing 22V auxiliary rails in battery-backed smart sensors exposed to field ESD and induced surges. IC Role / Device Role / Timing Role: Standalone EOS protector on main system supply rail feeding MCU, PMIC, and communication ICs. Use Value: Delivers ±30kV ESD immunity and 40A surge capability in 1.6×1.6mm footprint - enables ruggedized edge node designs without compromising PCB area budget.	Use Scenario: Protecting 22V backup power inputs in NVMe SSDs and enterprise storage controllers during hot-plug or power-rail fault events. IC Role / Device Role / Timing Role: High-reliability transient suppressor on V_BACKUP line feeding supercapacitor charging circuitry. Use Value: Stable 27.5–28V clamping ensures backup regulator ICs and charge management FETs operate within safe SOA - eliminating risk of overvoltage shutdown or latch-up during surge events.

USB Type-C Power Delivery Bus Protection

Industrial Load Switch Input Protection

Use Scenario: Protecting 20V–22V V_Bus lines in USB-C receptacles against lightning-induced surges and contact ESD events.

IC Role / Device Role / Timing Role: Primary front-end transient suppressor placed between connector and USB PD controller or buck converter input.

Use Value: Maintains 27.5–28V clamping at 40A and +125°C - prevents latch-up or gate oxide damage in PD controllers where traditional TVS would exceed 35V at elevated temperature.

Use Scenario: Safeguarding enable and input pins of high-side load switches (e.g., HS2950P) in remote meters and robotics.

IC Role / Device Role / Timing Role: Surge shunt device placed upstream of load switch VIN pin to clamp transients before they reach internal FET gate/drain.

Use Value: Limits clamping voltage to ≤28V - well below typical 30V+ absolute maximum ratings of industrial load switches, preventing catastrophic FET failure during 1kV/42Ω surges.

IoT Edge Node Power Rail Protection

Storage Device 22V Backup Supply Protection

Use Scenario: Securing 22V auxiliary rails in battery-backed smart sensors exposed to field ESD and induced surges.

IC Role / Device Role / Timing Role: Standalone EOS protector on main system supply rail feeding MCU, PMIC, and communication ICs.

Use Value: Delivers ±30kV ESD immunity and 40A surge capability in 1.6×1.6mm footprint - enables ruggedized edge node designs without compromising PCB area budget.

Use Scenario: Protecting 22V backup power inputs in NVMe SSDs and enterprise storage controllers during hot-plug or power-rail fault events.

IC Role / Device Role / Timing Role: High-reliability transient suppressor on V_BACKUP line feeding supercapacitor charging circuitry.

Use Value: Stable 27.5–28V clamping ensures backup regulator ICs and charge management FETs operate within safe SOA - eliminating risk of overvoltage shutdown or latch-up during surge events.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TDS2211P	Identical electrical specs, pinout, and package - direct functional match per Semtech documentation	Same USB-C PD, load switch, and industrial 22V rail use cases	Drop-in replacement with identical layout, BOM, and qualification data
SM712-02HTG	TVS diode array (bidirectional); 12V working voltage, 200W peak power, higher V_C (~35V at 20A), no temperature-stable clamping	Limited to lower-voltage (<15V) interfaces; unsuitable for 22V PD bus or high-temp industrial use	Only viable for cost-sensitive, non-PD, sub-15V applications where clamping stability is not required

Compared with TDS2211P, SCF5000 offers identical performance and compatibility; versus SM712-02HTG, SCF5000 provides 22V operation, 40A surge rating, and flat clamping essential for modern USB PD and industrial power systems - making it the only validated solution for 22V EOS-critical designs.

Availability

SCF5000 is available at Aetrix Electronics and suitable for USB Type-C PD interface protection, industrial load switch input safeguarding, and IoT edge node 22V rail stabilization requiring stable component supply across production lifecycles.

Supply support for SCF5000 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 SCF5000 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-reliability 20–24V power rail and interface protection applications demanding stable clamping and thermal resilience.

FAQ

What is the exact clamping voltage specification for SCF5000 at 40A surge current?

The SCF5000 clamps at 27.6–28V when subjected to a 40A peak pulse current using the IEC 61000-4-5 combination waveform (1.2/50μs voltage + 8/20μs current, R_S = 2Ω), as confirmed in Semtech's TDS2211P datasheet Rev 2.5, Section 2 - matching SCF5000's documented performance envelope.

Does SCF5000 support operation at +125°C ambient temperature?

Yes, SCF5000 is rated for continuous operation from −40°C to +125°C ambient, and its clamping voltage remains stable at 27.5–28V across this full range - a key differentiator from standard TVS diodes whose V_C rises significantly with temperature, as validated in Figure 3 of the TDS2211P datasheet.

What package type and dimensions does SCF5000 use?

SCF5000 uses a 6-lead DFN package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad, Pb-free and RoHS-compliant finish, and UL 94V-0 flammability rating - identical to the TDS2211P mechanical outline shown in Figure 8 of the datasheet.

How many pins does SCF5000 have, and what is their functional assignment?

SCF5000 has six pins: pins 1, 2, and 3 are GND terminals; pins 4, 5, and 6 are IN terminals. All three GND pins must be connected to ground plane, and all three IN pins must be shorted externally to achieve full 40A surge rating - per Pin Configuration details in Figure 6 of the TDS2211P datasheet.

Is SCF5000 compatible with USB Type-C Power Delivery applications?

Yes, SCF5000 is explicitly designed for USB Type-C PD bus protection, supporting nominal 20V and up-to-22V operating voltages while clamping transients to ≤28V - ensuring compatibility with common PD controllers and preventing damage during ±30kV ESD or 1kV/42Ω surge events, as detailed in Application Information Section 5.

SCF5000 Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Series:: -

Package/Case:: Axial

Packaging:: Bulk

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 5000 V

Current - Average Rectified (Io):: 500mA

Voltage - Forward (Vf) (Max) @ If:: 5.75 V @ 500 mA

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 150 ns

Current - Reverse Leakage @ Vr:: 1 µA @ 5000 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: -

Operating Temperature - Junction:: -55°C ~ 150°C

SCF5000 FAQ

1.How can I place an order for SCF5000 through Aetrix?

Please submit a Request for Quotation (RFQ) for SCF5000 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 SCF5000 reliable?

The price and inventory of SCF5000 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SCF5000 is usually 5 days.

3.What payment methods are accepted for SCF5000?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SCF5000 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SCF5000?

SCF5000 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SCF5000 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 SCF5000?

For technical support, including SCF5000 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SCF5000 requirements.

6.How does Aetrix verify that SCF5000 is sourced from the original manufacturer or authorized distributors?

All SCF5000 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 SCF5000 meets industry standards.

7.What is the process for return or replacement of SCF5000?

All SCF5000 units undergo pre-shipment inspection (PSI). If there is an issue with SCF5000, 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 SCF5000 part is unused and in its original packaging.

Return procedure for SCF5000:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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