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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

STMicroelectronics STPS20200CFP

Name: STPS20200CFP
Brand: STMicroelectronics
SKU: STPS20200CFP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS20200CFP

Manufacturer:: STMicroelectronics

Category:: Diode Arrays

Package:: TO-220-3 Full Pack

Datasheet:: STPS20200CFP.pdf

Description:: DIODE ARR SCHOTT 200V TO-220FPAB

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Product details

Overview

STPS20200CFP from STMicroelectronics is a dual-center-tap 200 V Schottky rectifier in insulated TO-220FPAB package, rated for 2 × 10 A average forward current per diode at T_c = 105 °C, with typical forward voltage drop of 0.64 V at 125 °C and 10 A, and 2000 V DC insulation rating. It serves as secondary-side synchronous rectification in high-frequency SMPS and LED lighting power supplies.

For engineers reviewing the STPS20200CFP datasheet, STPS20200CFP pinout, STPS20200CFP application, or STPS20200CFP equivalent, key selection criteria include its dual-diode thermal coupling behavior, low R_th(j-c) (5.0 °C/W per diode), 45 pF junction capacitance, and insulated package suitability for isolated topologies requiring reinforced creepage/clearance.

Technical Context

This device integrates two independent Schottky diodes sharing a common cathode terminal (center-tap configuration), enabling single-point output connection in full-wave rectification. Its TO-220FPAB package provides 2000 V DC isolation between case and terminals, with 3.30 °C/W inter-diode thermal coupling resistance (R_th(c)) and 4.15 °C/W total thermal resistance per device.

Designed for high-efficiency DC–DC conversion, it exhibits negligible reverse recovery charge (Q_rr ≈ 0), extremely fast switching (t_rr < 10 ns), and conduction loss modeled as P = 0.6 × I_F(AV) + 0.01 × I_F(RMS)². Junction temperature calculation accounts for cross-heating between diodes via coupled thermal equations.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Maximum repetitive reverse blocking voltage per diode; defines usable input voltage range in isolated flyback or forward converters.
I_F(AV)	2 × 10 A - Average forward current per diode at T_c = 105 °C; determines continuous output capability in 12–48 V secondary rails.
V_F(typ)	0.64 V @ 10 A, 125 °C - Low conduction loss enables >95% efficiency in high-current LED drivers and telecom PSUs.
R_th(j-c)	5.00 °C/W per diode - Thermal resistance from junction to case in TO-220FPAB; requires heatsink design accounting for dual-diode self-heating.
Isolation Voltage	2000 V DC - Reinforced insulation rating allows direct mounting on grounded heatsinks in Class II AC/DC adapters.
C_j	45 pF - Junction capacitance at V_R = 0 V; minimizes switching node ringing and EMI in >100 kHz SMPS designs.
T_j(max)	175 °C - Maximum junction temperature; supports operation in sealed LED luminaires with ambient up to 85 °C.

Pinout & Package

STPS20200CFP uses the TO-220FPAB package: an insulated variant of TO-220 with plastic barrier between metal tab and leads, enabling direct heatsink mounting without insulating washers. Dimensions comply with Table 7 (DocID024382 Rev 2): L3 = 28.6–30.6 mm, H = 10–10.4 mm, G = 4.95–5.20 mm, and mounting hole ∅P = 3.00–3.20 mm.

Pin/Terminal	Circuit Role	Design Meaning
Anode 1 (Lead 1)	Input terminal for Diode 1	Connects to transformer secondary winding leg 1; must be routed with low-inductance path to minimize voltage overshoot.
Cathode (Center Tap, Lead 2)	Common cathode node	Output node for full-wave rectification; carries combined current of both diodes; requires low-impedance PCB copper pour.
Anode 2 (Lead 3)	Input terminal for Diode 2	Connects to transformer secondary winding leg 2; symmetrical layout with Anode 1 ensures balanced conduction and thermal distribution.

Key Features

Feature	Design Value
Insulated TO-220FPAB package	Eliminates need for mica washers or silicone pads when mounting to grounded heatsinks-reducing assembly cost and thermal interface resistance.
Low V_F at high T_j	0.64 V typ. @ 125 °C enables stable efficiency across industrial temperature range without derating penalties.
Dual-diode thermal coupling model	Explicit T_j equations account for mutual heating-enabling accurate junction temperature prediction in compact layouts.
ECOPACK®2 compliance	Lead-free, halogen-free, RoHS-compliant construction meets global environmental regulations for consumer and industrial lighting.
Negligible Q_rr	Zero reverse recovery charge eliminates snubber circuits and associated losses in high-frequency (>300 kHz) LLC resonant converters.

Applications

LED Driver Secondary Rectification

Industrial SMPS Output Stage

Use Scenario: High-efficiency constant-current LED driver for street lighting operating at 100–200 kHz switching frequency with 36 V output.

IC Role / Device Role / Timing Role: Dual-center-tap Schottky rectifier performing full-wave synchronous rectification on transformer secondary side.

Use Value: 0.64 V forward drop at 125 °C reduces conduction loss by 35% vs. standard silicon diodes, enabling passive cooling in IP67-rated enclosures.

Use Scenario: 48 V/20 A telecom power supply with isolated forward converter topology and forced-air cooling.

IC Role / Device Role / Timing Role: Secondary-side dual Schottky rectifier handling full-load current with shared cathode output node.

Use Value: 2000 V DC insulation allows direct mounting to chassis-grounded heatsink, simplifying mechanical design and improving EMI shielding integrity.

AC/DC Adapter Output Rectifier

High-Frequency DC–DC Converter

Use Scenario: 19 V/3.42 A laptop adapter using quasi-resonant flyback with 65 kHz nominal switching frequency.

IC Role / Device Role / Timing Role: Center-tapped Schottky rectifier replacing two discrete diodes to reduce component count and layout area.

Use Value: 45 pF junction capacitance minimizes switching node oscillation, reducing conducted EMI and eliminating need for RC snubbers.

Use Scenario: 12 V/15 A point-of-load converter in server PSU with 500 kHz phase-shifted full-bridge topology.

IC Role / Device Role / Timing Role: Dual Schottky rectifier used in center-tapped secondary winding for zero-voltage switching (ZVS) assisted rectification.

Use Value: Negligible reverse recovery enables clean ZVS transition, improving efficiency by 1.2% at full load compared to fast-recovery diodes.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-20CPH02-M3	Same 200 V V_RRM, 2 × 10 A rating, but TO-220AC package (non-insulated); R_th(j-c) = 3.0 °C/W per diode.	Requires insulating hardware for grounded heatsinks; better thermal performance but higher assembly complexity.	Select when thermal budget is tighter and isolation can be achieved mechanically.
ON Semiconductor MBR20200CT	200 V, 2 × 10 A, TO-220AB package (non-insulated); V_F = 0.86 V @ 25 °C (higher than ST's 0.64 V @ 125 °C).	Higher conduction loss at elevated temperature; no built-in isolation-unsuitable for Class II adapters without additional barriers.	Select for cost-sensitive, non-isolated designs where ambient temperature remains below 60 °C.

Compared with VS-20CPH02-M3 and MBR20200CT, STPS20200CFP uniquely combines reinforced 2000 V DC isolation, lowest high-temperature V_F, and ECOPACK®2 compliance-making it optimal for safety-critical, thermally constrained, and environmentally regulated LED and adapter designs.

Availability

STPS20200CFP is available at Aetrix Electronics and suitable for LED lighting drivers, industrial switch-mode power supplies, AC/DC adapters, and high-frequency DC–DC converters requiring stable component supply, long-term lifecycle support, and certified insulation performance.

Supply support for STPS20200CFP 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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

This device belongs to ST's Power Schottky Diode product line, engineered specifically for high-efficiency secondary-side rectification in isolated SMPS topologies where low V_F, fast switching, and reinforced insulation are critical.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STPS20200CFP is rated for 2 × 10 A average forward current only when case temperature (T_c) is maintained at ≤105 °C, as specified in Table 2. Exceeding this limit requires derating per Figure 1, and sustained operation above 105 °C risks thermal runaway due to positive temperature coefficient of forward voltage.

Can STPS20200CFP replace a single-diode TO-220 Schottky in existing designs?

No-it is a dual-center-tap device with three terminals (A1–K–A2) and cannot substitute for a single-diode rectifier without circuit redesign. Its center-tapped configuration is intended for full-wave rectification; using only one anode degrades thermal balance and violates absolute ratings for per-diode current sharing.

How does the 2000 V DC insulation rating impact PCB layout?

The 2000 V DC isolation between tab and leads permits direct mounting to a grounded metal heatsink without insulating hardware, but PCB creepage/clearance must still meet IEC 62368-1 requirements for working voltage. Minimum spacing from tab edge to any nearby trace must be ≥4.0 mm for reinforced insulation at 250 V RMS mains-derived outputs.

Is this device suitable for automotive under-hood applications?

No-ST explicitly states in the datasheet disclaimer that STPS20200CFP is not designed or authorized for automotive environments. Its qualification excludes AEC-Q101 stress testing, and the -40 °C to +175 °C operating range does not guarantee reliability under automotive thermal cycling, vibration, or chemical exposure conditions.

STPS20200CFP Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-220-3 Full Pack

Packaging:: Tube

Product Status:: Active

Diode Configuration:: 1 Pair Common Cathode

Technology:: Schottky

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

Current - Average Rectified (Io) (per Diode):: 10A

Voltage - Forward (Vf) (Max) @ If:: 860 mV @ 10 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 15 µA @ 200 V

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220FPAB

STPS20200CFP FAQ

1.How can I place an order for STPS20200CFP through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS20200CFP 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 STPS20200CFP reliable?

The price and inventory of STPS20200CFP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS20200CFP is usually 5 days.

3.What payment methods are accepted for STPS20200CFP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS20200CFP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS20200CFP?

STPS20200CFP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS20200CFP 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 STPS20200CFP?

For technical support, including STPS20200CFP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS20200CFP requirements.

6.How does Aetrix verify that STPS20200CFP is sourced from the original manufacturer or authorized distributors?

All STPS20200CFP 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 STPS20200CFP meets industry standards.

7.What is the process for return or replacement of STPS20200CFP?

All STPS20200CFP units undergo pre-shipment inspection (PSI). If there is an issue with STPS20200CFP, 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 STPS20200CFP part is unused and in its original packaging.

Return procedure for STPS20200CFP:

1.Submit a request within 90 days.

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

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