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

STMicroelectronics STPS20H100CR

Name: STPS20H100CR
Brand: STMicroelectronics
SKU: STPS20H100CR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS20H100CR

Manufacturer:: STMicroelectronics

Category:: Diode Arrays

Package:: TO-262-3 Long Leads, I2PAK, TO-262AA

Datasheet:: STPS20H100CR.pdf

Description:: DIODE ARRAY SCHOT 100V 10A I2PAK

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Product details

Overview

STPS20H100CR from STMicroelectronics is a dual-center-tap Schottky rectifier in I²PAK (TO-263) package, rated for 100 V repetitive reverse voltage and 2 × 10 A average forward current per diode at TC = 160 °C. It delivers low forward voltage drop (0.59 V typ. at 10 A, 125 °C), high junction temperature capability (175 °C max), and avalanche-rated ruggedness - optimized for high-frequency DC/DC converters and notebook adapters.

For engineers reviewing the STPS20H100CR datasheet, STPS20H100CR pinout, STPS20H100CR application, or STPS20H100CR equivalent, key selection criteria include thermal resistance (R_th(j-c) = 1.6 °C/W per diode), insulated package options, leakage-current vs. VF trade-off, and dual-diode center-tap configuration for synchronous rectification topologies.

Technical Context

This dual Schottky rectifier integrates two independent anode-cathode junctions sharing a common cathode terminal (center-tap configuration), enabling use in full-wave synchronous rectification and dual-output SMPS designs. Its low Q_rr and negligible switching losses stem from majority-carrier conduction and absence of minority-carrier storage delay.

Thermal design relies on case-to-heatsink conduction (R_th(j-c) = 1.6 °C/W per diode for I²PAK), with derating required above T_C = 160 °C. The device is avalanche-rated (775 W peak, 10 µs pulse at T_j = 125 °C) and ECOPACK®2 compliant.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum reverse blocking voltage per diode; defines safe operating range in buck-derived topologies.
I_F(AV)	2 × 10 A - Average forward current per diode at T_C = 160 °C; supports 20 A total device output in dual-rail supplies.
V_F (typ)	0.59 V @ 10 A, 125 °C - Low conduction loss enables >94% efficiency in 12 V → 5 V/3.3 V point-of-load converters.
T_j(max)	175 °C - Enables operation in thermally constrained environments (e.g., sealed LED drivers, compact adapters).
R_th(j-c)	1.6 °C/W per diode - Determines heatsink sizing: ~16 W dissipation requires ≤10 °C rise from case to heatsink.
I_R (max)	6 mA @ 125 °C - Low leakage preserves efficiency in standby modes and high-temperature industrial applications.
P_ARM	775 W (10 µs pulse) - Supports robust transient surge handling without failure in unregulated input stages.

Pinout & Package

I²PAK (TO-263) surface-mount package with isolated mounting tab (UL 94 V0 epoxy), 3-terminal configuration, and copper-tab thermal path. Dimensions: 9.35 mm × 10.40 mm × 4.60 mm (L × W × H); weight: 1.50 g.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Tab)	Cathode (common center tap)	Electrically connected to PCB copper pour for thermal + electrical return; must be isolated from chassis ground unless circuit topology requires it.
Pin 2	Anode 1	Input node for first diode leg; used in dual-output flyback or center-tapped forward converters.
Pin 3	Anode 2	Input node for second diode leg; enables symmetrical current sharing in interleaved or dual-rail designs.

Key Features

Feature	Design Value
Negligible switching losses	Majority-carrier operation eliminates reverse recovery charge (Q_rr ≈ 0), reducing EMI and gate-drive stress in >300 kHz SMPS.
Avalanche-rated	Withstands 775 W transient avalanche energy (10 µs, T_j = 125 °C), enhancing reliability in inductive load switching and input surge events.
Insulated package option	TO-220FPAB variant offers 2000 V_RMS isolation; I²PAK provides creepage/clearance compliance for reinforced insulation in Class II AC/DC adapters.
ECOPACK®2 compliance	Meets RoHS, halogen-free, and lead-free reflow requirements; suitable for consumer electronics and medical power supplies.
High T_j capability	175 °C maximum junction temperature allows operation in sealed enclosures or high-ambient environments without derating below 10 A per diode.

Applications

Adapter Power Supply

On-Board DC/DC Converter

Use Scenario: Notebook and game station AC/DC adapters requiring compact, high-efficiency 19 V/20 V output.

IC Role / Device Role / Timing Role: Dual-center-tap Schottky rectifier in secondary-side synchronous rectification of flyback converter.

Use Value: 0.59 V forward drop at 125 °C reduces conduction loss by ~22% vs. standard 0.76 V diodes, improving full-load efficiency to >89%.

Use Scenario: Point-of-load (POL) conversion on server or telecom board (e.g., 12 V → 3.3 V/5 V rails).

IC Role / Device Role / Timing Role: Dual-anode rectifier enabling independent regulation of two output voltages from shared transformer winding.

Use Value: Shared cathode simplifies PCB layout and thermal management while maintaining <1.5 mV/mA dynamic impedance across both legs.

LED Driver Secondary Side

Industrial SMPS Output Stage

Use Scenario: Constant-current LED driver for commercial lighting with wide ambient temperature range (-40 °C to +85 °C).

IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant flyback delivering stable current to LED string.

Use Value: 6 mA max reverse leakage at 125 °C prevents thermal runaway in enclosed luminaires, ensuring long-term lumen maintenance.

Use Scenario: 24 V/48 V industrial power supply with high reliability requirements and frequent load transients.

IC Role / Device Role / Timing Role: Primary output rectifier in hard-switched forward converter with active clamp.

Use Value: Avalanche rating absorbs 250 A surge currents during short-circuit events, eliminating need for external TVS clamping.

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-20CPH05-M3	Same 100 V V_RRM, but single-diode TO-220AB; no center-tap; R_th(j-c) = 2.0 °C/W.	Requires two separate devices for dual-output use; higher thermal resistance limits power density.	Select only when discrete layout control or legacy footprint compatibility is prioritized over integration.
ON Semiconductor MBR20100CT	100 V, 2 × 10 A, TO-220AB; VF = 0.85 V @ 10 A, 25 °C; T_j(max) = 150 °C; no avalanche rating.	Lacks avalanche ruggedness and high-temperature margin; higher VF increases conduction loss by ~18% at 125 °C.	Acceptable for cost-sensitive, non-safety-critical 60–100 kHz designs where thermal headroom exists.

Compared with VS-20CPH05-M3 and MBR20100CT, STPS20H100CR uniquely combines center-tap integration, 175 °C rating, avalanche capability, and 1.6 °C/W thermal resistance - making it optimal for space-constrained, high-reliability, high-frequency DC/DC systems.

Availability

STPS20H100CR is available at Aetrix Electronics and suitable for notebook adapters, on-board DC/DC converters, and industrial SMPS requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.

Supply support for STPS20H100CR 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, microcontroller, and sensor solutions for automotive, industrial, and consumer markets.

STPS20H100CR belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-frequency switch-mode power supplies demanding low VF, high T_j, and avalanche robustness in compact form factors.

FAQ

What is the thermal resistance from junction to case for STPS20H100CR?

The junction-to-case thermal resistance (R_th(j-c)) is 1.6 °C/W per diode for the I²PAK package, measured under standard mounting conditions with thermal interface material and 25 mm² copper pad. This value assumes conduction cooling only and excludes PCB trace contribution.

Is STPS20H100CR suitable for synchronous rectification in LLC resonant converters?

Yes - its negligible reverse recovery charge (Q_rr ≈ 0) and low forward voltage make it compatible with synchronous rectification control schemes in LLC topologies up to 500 kHz, provided gate drive timing avoids shoot-through and layout minimizes parasitic inductance.

Does STPS20H100CR have a center-tap cathode or anode configuration?

STPS20H100CR features a center-tapped cathode configuration: Pin 1 (tab) is the common cathode, while Pins 2 and 3 are independent anodes. This enables full-wave rectification from center-tapped transformers or dual-output windings.

What is the maximum surge current rating for STPS20H100CR?

The non-repetitive surge forward current (I_FSM) is 250 A for a 10 ms sinusoidal half-cycle at T_j = 25 °C. Derating applies above 25 °C ambient; at T_j = 125 °C, the usable surge capacity drops to approximately 175 A.

STPS20H100CR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-262-3 Long Leads, I2PAK, TO-262AA

Packaging:: Tube

Product Status:: Active

Diode Configuration:: 1 Pair Common Cathode

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 100 V

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

Voltage - Forward (Vf) (Max) @ If:: 770 mV @ 10 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 4.5 µA @ 100 V

Operating Temperature - Junction:: 175°C (Max)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: I2PAK

STPS20H100CR FAQ

1.How can I place an order for STPS20H100CR through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS20H100CR 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 STPS20H100CR reliable?

The price and inventory of STPS20H100CR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS20H100CR is usually 5 days.

3.What payment methods are accepted for STPS20H100CR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS20H100CR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS20H100CR?

STPS20H100CR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS20H100CR 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 STPS20H100CR?

For technical support, including STPS20H100CR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS20H100CR requirements.

6.How does Aetrix verify that STPS20H100CR is sourced from the original manufacturer or authorized distributors?

All STPS20H100CR 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 STPS20H100CR meets industry standards.

7.What is the process for return or replacement of STPS20H100CR?

All STPS20H100CR units undergo pre-shipment inspection (PSI). If there is an issue with STPS20H100CR, 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 STPS20H100CR part is unused and in its original packaging.

Return procedure for STPS20H100CR:

1.Submit a request within 90 days.

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

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