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

STMicroelectronics STPS4S200UF

Name: STPS4S200UF
Brand: STMicroelectronics
SKU: STPS4S200UF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS4S200UF

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: DO-221AA, SMB Flat Leads

Datasheet:: STPS4S200UF.pdf

Description:: DIODE SCHOTTKY 200V 4A SMBFLAT

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Inventory:16,396

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Product details

Overview

STPS4S200UF from STMicroelectronics is a 4 A average forward current, 200 V repetitive peak reverse voltage Schottky rectifier in SMB Flat Notch package, optimized for high-frequency DC-DC converters and low-voltage inverters with negligible switching losses and low conduction loss (VF(typ.) = 0.64 V at 4 A, Tj = 125 °C). It operates from -40 °C to +175 °C junction temperature and delivers <2.5 mA reverse leakage at 125 °C.

For engineers reviewing the STPS4S200UF datasheet, STPS4S200UF pinout, STPS4S200UF application, or STPS4S200UF equivalent, key selection criteria include thermal resistance (Rth(j-l) = 15 °C/W), ECOPACK2 compliance, surface-mount compatibility, and conduction loss modeling using P = 0.63 × IF(AV) + 0.020 × IF²(RMS).

Technical Context

This single-die Schottky rectifier uses platinum-silicide barrier technology to achieve low VF and minimal reverse recovery charge, eliminating switching losses typical of PN junction diodes. Its design targets continuous conduction mode (CCM) and discontinuous conduction mode (DCM) topologies in SMPS where fast turn-off and low forward drop are critical.

Thermal performance is defined by junction-to-lead resistance (15 °C/W) for SMB Flat Notch mounting, enabling reliable operation up to 175 °C junction temperature without forced cooling. The device supports surge currents up to 130 A (10 ms sinusoidal) and maintains stable leakage (<0.7 mA at 125 °C, VR = 200 V).

Key Specifications

Parameter	Value and Actual Design Meaning
IF(AV)	4 A - maximum average forward current at TL = 125 °C, defining continuous power handling in low-voltage inverters
VRRM	200 V - peak reverse blocking capability, suitable for 100–120 VAC input-derived DC rails
VF(typ.)	0.64 V @ 4 A, 125 °C - enables sub-2.6 W conduction loss at full load, reducing heatsink requirements
IR(max)	2.5 mA @ 125 °C, VR = 200 V - low leakage preserves efficiency in high-temperature battery charger standby modes
Tj(max)	+175 °C - allows operation in sealed telecom power enclosures without derating below 150 °C ambient
Rth(j-l)	15 °C/W - quantifies thermal path from die to PCB lead, guiding copper area design per footprint recommendation (2.07 mm pad width)
IFSM	130 A @ 10 ms - withstands inrush surges in home appliance motor drives without failure

Pinout & Package

STPS4S200UF is packaged in SMB Flat Notch - a surface-mount, lead-free, UL94 V0-compliant plastic case with standardized 3.3–3.95 mm body width and 5.2–5.6 mm length. Thermal pad is absent; heat transfer occurs via leads.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to low-side switch node in synchronous buck or flyback secondary; requires minimum 1.2 mm solder pad width per footprint spec
Cathode	Forward current exit / reverse voltage blocking terminal	Connected to output rail or ground return; carries full load current and must be routed with ≥0.75 mm trace width for 4 A RMS

Key Features

Feature	Design Value
Negligible switching losses	No reverse recovery time (Qrr ≈ 0), eliminating turn-off energy dissipation in 100–500 kHz DC-DC converters
High junction temperature capability	Rated Tj(max) = +175 °C enables use in thermally constrained telecom power modules without active cooling
Very small conduction losses	VF(typ.) = 0.64 V at 125 °C reduces I²R loss by >40% vs. comparable 200 V Si PN diodes
Low leakage current	IR ≤ 0.7 mA at 125 °C ensures <10 mW standby loss in battery charger hold-up circuits
ECOPACK2 compliance	Meets RoHS, halogen-free, and material declaration requirements for global industrial and consumer shipments

Applications

Inverter Systems

Lighting Power Supplies

Use Scenario: Low-voltage, high-frequency inverter stage in solar microinverters and UPS systems operating at 100–250 kHz.

IC Role / Device Role / Timing Role: Output rectifier in full-bridge or half-bridge DC-AC stage, conducting during freewheeling intervals.

Use Value: 0.64 V VF minimizes conduction loss at 4 A RMS, improving system efficiency by ≥1.2% over standard silicon diodes.

Use Scenario: Secondary-side rectification in LED driver flyback converters powering streetlights and commercial luminaires.

IC Role / Device Role / Timing Role: Synchronous rectification replacement in quasi-resonant flyback, handling 3–5 A pulsed output current.

Use Value: 175 °C Tj(max) sustains reliability under enclosed fixture temperatures exceeding 95 °C ambient.

Battery Chargers

Telecom Power Rectification

Use Scenario: AC-DC adapter for Li-ion battery packs in cordless power tools and e-bikes, requiring compact, high-efficiency output stage.

IC Role / Device Role / Timing Role: Freewheeling diode across primary-side MOSFET or secondary-side synchronous rectifier controller feedback path.

Use Value: 2.5 mA IR(max) at 125 °C prevents thermal runaway during prolonged 45 °C ambient charging cycles.

Use Scenario: +12 V and +48 V intermediate bus rectification in telecom shelf power supplies with strict 50 °C to 70 °C operating range.

IC Role / Device Role / Timing Role: OR-ing diode in redundant DC distribution, blocking reverse current while minimizing forward drop.

Use Value: Rth(j-l) = 15 °C/W enables direct PCB copper thermal coupling, eliminating discrete heatsinks in space-constrained 1U chassis.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-4EWH02-M3/5AT	Same 4 A / 200 V rating but VF = 0.72 V (typ.) at 4 A, 125 °C; Rth(j-l) = 18 °C/W	Slightly higher conduction loss; less effective thermal coupling on same PCB layout	Select when legacy Vishay footprint compatibility is required and 80 mV VF penalty is acceptable
ON Semiconductor SB420	4 A / 200 V, VF = 0.75 V (typ.) at 4 A, 25 °C; no 125 °C VF spec provided; Tj(max) = 150 °C	Limited high-temp performance; not rated for sustained 175 °C operation	Prefer only in cost-sensitive, lower-ambient applications where junction temp stays <130 °C

Compared with VS-4EWH02-M3/5AT and SB420, STPS4S200UF offers the lowest verified VF at elevated temperature and highest junction rating, making it optimal for thermally aggressive telecom and industrial inverters where long-term reliability at >150 °C is mandatory.

Availability

STPS4S200UF is available at Aetrix Electronics and suitable for inverter systems, lighting power supplies, and battery chargers requiring stable component supply with consistent SMB Flat Notch footprint and ECOPACK2 compliance.

Supply support for STPS4S200UF 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.

STPS4S200UF belongs to ST's high-efficiency power rectifier product line, engineered specifically for high-frequency, low-loss SMPS and renewable energy conversion systems where thermal robustness and conduction efficiency are critical.

FAQ

What is the maximum allowable PCB copper area under each lead for STPS4S200UF in SMB Flat Notch?

The recommended footprint specifies 2.07 mm pad width per lead with 1.20 mm spacing. For optimal thermal performance, ST recommends ≥3.0 cm² total copper area per lead (including internal layers) to achieve Rth(j-a) ≤ 50 °C/W at 25 °C ambient, per Figure 11 in DS10646 Rev 6.

Does STPS4S200UF support avalanche energy rating?

No - STPS4S200UF is not rated for repetitive or single-pulse avalanche operation. Its absolute maximum ratings define only non-repetitive surge current (IFSM = 130 A, 10 ms sinusoidal) and do not specify EAS or IAR. Designers must ensure voltage transients remain within VRRM with appropriate snubbing.

Can STPS4S200UF replace a standard PN rectifier in an existing 200 V design?

Yes - with verification of layout thermal margins. Its 0.64 V VF reduces conduction loss significantly versus a typical 1.1 V PN diode, but its higher leakage at elevated temperature requires checking standby power budgets. Also confirm that PCB footprint matches SMB Flat Notch (not SMB Flat or SMC) before substitution.

Is STPS4S200UF suitable for synchronous rectification control schemes?

No - STPS4S200UF is a passive Schottky rectifier, not a synchronous rectifier IC or MOSFET driver. It functions as a unidirectional, self-commutated device. For synchronous rectification, a dedicated gate driver (e.g., STMicroelectronics SRK1001) paired with a low-RDS(on) MOSFET is required.

STPS4S200UF Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: ECOPACK®

Package/Case:: DO-221AA, SMB Flat Leads

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 200 V

Current - Average Rectified (Io):: 4A

Voltage - Forward (Vf) (Max) @ If:: 870 mV @ 4 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 5 µA @ 200 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMBflat

Operating Temperature - Junction:: -40°C ~ 175°C

STPS4S200UF FAQ

1.How can I place an order for STPS4S200UF through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS4S200UF 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 STPS4S200UF reliable?

The price and inventory of STPS4S200UF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS4S200UF is usually 5 days.

3.What payment methods are accepted for STPS4S200UF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS4S200UF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS4S200UF?

STPS4S200UF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS4S200UF 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 STPS4S200UF?

For technical support, including STPS4S200UF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS4S200UF requirements.

6.How does Aetrix verify that STPS4S200UF is sourced from the original manufacturer or authorized distributors?

All STPS4S200UF 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 STPS4S200UF meets industry standards.

7.What is the process for return or replacement of STPS4S200UF?

All STPS4S200UF units undergo pre-shipment inspection (PSI). If there is an issue with STPS4S200UF, 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 STPS4S200UF part is unused and in its original packaging.

Return procedure for STPS4S200UF:

1.Submit a request within 90 days.

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

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