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

STMicroelectronics STPS41H100CG

Name: STPS41H100CG
Brand: STMicroelectronics
SKU: STPS41H100CG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS41H100CG

Manufacturer:: STMicroelectronics

Category:: Diode Arrays

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: STPS41H100CG.pdf

Description:: DIODE ARRAY SCHOT 100V 20A D2PAK

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Product details

Overview

STPS41H100CG from STMicroelectronics is a dual-center-tab 100 V, 40 A (total) Schottky rectifier in D²PAK package, optimized for high-frequency DC/DC converters and SMPS. It delivers typ. 0.62 V forward voltage at 125 °C/20 A per diode, supports 175 °C junction operation, and features low thermal resistance (R_th(j-c) = 0.8 °C/W total) and avalanche-rated capability (1300 W, 10 µs).

For engineers reviewing the STPS41H100CG datasheet, STPS41H100CG pinout, STPS41H100CG application, or STPS41H100CG equivalent, key selection criteria include dual-diode thermal coupling behavior, reverse leakage <10 mA at 125 °C, conduction loss modeling via P = 0.58×I_F(AV) + 0.0045×I_F(RMS)², and ECOPACK2-compliant lead-free packaging.

Technical Context

This dual Schottky rectifier integrates two independent 20 A diodes sharing a common cathode tab and thermally coupled die structure. Its low VF–IR trade-off enables high-efficiency operation in 100 kHz–1 MHz switching topologies while maintaining avalanche robustness under transient overvoltage conditions.

The D²PAK package provides direct thermal path from junction to case (R_th(j-c) = 0.8 °C/W total), with coupling resistance R_th(c) = 0.1 °C/W enabling accurate thermal modeling when both diodes conduct simultaneously: ΔT_j1 = P₁ × 1.5 + P₂ × 0.1.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse blocking voltage per diode; defines safe operating range in flyback/freewheeling applications.
I_F(AV)	2 × 20 A - Average forward current rating per diode at T_c = 150 °C; supports 40 A total device output in continuous conduction mode.
V_F (typ.)	0.62 V @ 125 °C, 20 A - Low conduction loss enables >95% efficiency in 12 V–48 V output DC/DC stages.
R_th(j-c)	0.8 °C/W (total) - Junction-to-case thermal resistance enables compact heatsink design; critical for thermal derating above 85 °C ambient.
I_FSM	220 A (10 ms sinusoidal) - Surge current capability supports inrush and short-circuit protection without catastrophic failure.
T_j(max)	175 °C - Extended junction temperature rating allows operation in high-ambient industrial environments without derating.
ECOPACK2	Halogen-free, lead-free, RoHS-compliant - Meets EU environmental directives and IPC-J-STD-020 moisture sensitivity level 1.

Pinout & Package

D²PAK (TO-263) package with exposed copper thermal pad on underside; 3-pin configuration: two anodes (A1, A2) and one shared cathode (K) on center tab. Mounting requires thermal interface material and mechanical clamping for optimal heat transfer.

Pin/Terminal	Circuit Role	Design Meaning
A1	Anode 1	Input terminal for first Schottky diode; connects to primary-side switch node in synchronous rectification or freewheeling path.
A2	Anode 2	Input terminal for second Schottky diode; enables dual-output or interleaved converter designs with shared cathode return.
K	Common Cathode	Output/return node for both diodes; electrically and thermally tied to exposed metal tab for low-inductance, high-current return path.

Key Features

Feature	Design Value
Negligible switching losses	No minority-carrier storage delay; enables clean zero-voltage switching in resonant topologies up to 1 MHz.
Low thermal resistance	R_th(j-c) = 0.8 °C/W total allows 40 A conduction with ≤40 °C junction rise over case at full load.
Avalanche-rated	1300 W peak avalanche power (10 µs) provides intrinsic overvoltage ruggedness without external snubbers.
Good VF–IR trade-off	0.62 V @ 125 °C / 20 A and <10 mA IR @ 125 °C balances efficiency and leakage in high-temp LED drivers.
Dual-center-tab layout	Shared K tab simplifies PCB layout and heatsinking for dual-output isolated DC/DC converters.

Applications

Server VRM Power Stage

Industrial LED Driver

Use Scenario: High-density 48 V input, 3.3 V/50 A output buck converter in AI accelerator server rack.

IC Role / Device Role / Timing Role: Synchronous rectifier replacing MOSFETs in secondary-side conduction; operates at 500 kHz with δ = 0.5 duty cycle.

Use Value: Reduces conduction loss by 35% vs. Si diode alternative, lowering thermal load on 2-layer PCB with 10 cm² copper pour.

Use Scenario: Constant-current 36 V, 3 A LED string driver for outdoor signage with -40 °C to +85 °C ambient range.

IC Role / Device Role / Timing Role: Freewheeling diode in boost converter topology; handles 100 kHz switching with minimal reverse recovery noise.

Use Value: Enables stable dimming down to 1% without flicker due to negligible reverse recovery charge (Q_rr ≈ 0).

Telecom DC/DC Module

Automotive Auxiliary Supply

Use Scenario: 28 V input, dual 5 V/3.3 V isolated outputs in telecom shelf power module with strict EMI limits.

IC Role / Device Role / Timing Role: Dual-output synchronous rectifier with shared cathode return; reduces layout parasitics and common-mode noise.

Use Value: Achieves CISPR-22 Class B compliance with 6 dB margin due to absence of reverse recovery spikes.

Use Scenario: 12 V battery-fed auxiliary supply for infotainment system MCU and CAN transceiver in start-stop vehicles.

IC Role / Device Role / Timing Role: Input rectifier in buck-boost pre-regulator handling cold-crank (4.5 V) to load-dump (40 V) transients.

Use Value: Survives 100 V load-dump pulses without avalanche failure thanks to 1300 W rated pulse energy.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MBR40100CT	Same 100 V/40 A rating but TO-220AB package; R_th(j-c) = 1.5 °C/W per diode (higher thermal resistance); no avalanche rating.	Limited to lower-power SMPS (<200 W) with forced-air cooling; unsuitable for unclamped inductive transients.	Select when cost priority outweighs thermal performance and ruggedness; verify heatsink sizing for same I_F(AV).
Vishay VS-40CPH10-M3	D²PAK package like STPS41H100CG; 100 V/40 A; VF = 0.72 V @ 125 °C (16% higher conduction loss); R_th(j-c) = 0.95 °C/W.	Acceptable for LED drivers where leakage <3 mA at 125 °C is critical, but less efficient in high-current VRMs.	Prefer for designs prioritizing ultra-low IR over VF; confirm thermal margin with 0.15 °C/W higher R_th.

Compared with MBR40100CT and VS-40CPH10-M3, STPS41H100CG offers superior thermal coupling (0.8 °C/W total), lower VF (0.62 V), and guaranteed avalanche ruggedness-making it optimal for high-reliability, high-power-density DC/DC converters where thermal management and transient immunity are critical.

Availability

STPS41H100CG is available at Aetrix Electronics and suitable for switch mode power supplies, LED lighting drivers, and automotive auxiliary power supplies requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for STPS41H100CG 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.

The STPS41H100CG belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-frequency, high-efficiency power conversion in space-constrained applications where thermal performance and reliability are non-negotiable.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STPS41H100CG supports continuous operation with case temperature (T_c) up to 150 °C, as specified in the absolute ratings table. At this temperature, each diode sustains 20 A average forward current. Exceeding 150 °C requires derating per Figure 2 in DS2677, and junction temperature must remain ≤175 °C under all conditions.

Can STPS41H100CG be used in parallel configurations?

No-STPS41H100CG is not intended for parallel use. Its dual-diode structure shares a common cathode and thermal substrate; paralleling multiple devices introduces uncontrolled current imbalance and thermal runaway risk. For higher current, select a single higher-rated part or redesign with interleaved phases.

Is the D²PAK footprint compatible with standard TO-263 land patterns?

Yes-the STPS41H100CG uses industry-standard D²PAK (TO-263) dimensions per Table 6 in DS2677, including 2.54 mm pin pitch and 10.00–10.40 mm E width. The recommended footprint in Figure 12 specifies 12.20 mm × 16.90 mm pad area with 3.50 mm solder mask opening for optimal thermal transfer.

Does STPS41H100CG require a gate driver or control signal?

No-it is a passive Schottky rectifier with no control terminals. It conducts when anode voltage exceeds cathode voltage by >0.6 V and blocks reverse voltage up to 100 V. No external bias, timing, or drive circuitry is needed; operation is fully autonomous and instantaneous.

STPS41H100CG Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

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):: 20A

Voltage - Forward (Vf) (Max) @ If:: 800 mV @ 20 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 10 µA @ 100 V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

STPS41H100CG FAQ

1.How can I place an order for STPS41H100CG through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS41H100CG 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 STPS41H100CG reliable?

The price and inventory of STPS41H100CG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS41H100CG is usually 5 days.

3.What payment methods are accepted for STPS41H100CG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS41H100CG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS41H100CG?

STPS41H100CG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS41H100CG 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 STPS41H100CG?

For technical support, including STPS41H100CG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS41H100CG requirements.

6.How does Aetrix verify that STPS41H100CG is sourced from the original manufacturer or authorized distributors?

All STPS41H100CG 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 STPS41H100CG meets industry standards.

7.What is the process for return or replacement of STPS41H100CG?

All STPS41H100CG units undergo pre-shipment inspection (PSI). If there is an issue with STPS41H100CG, 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 STPS41H100CG part is unused and in its original packaging.

Return procedure for STPS41H100CG:

1.Submit a request within 90 days.

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

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