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

STMicroelectronics STPS80H100CY

Name: STPS80H100CY
Brand: STMicroelectronics
SKU: STPS80H100CY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS80H100CY

Manufacturer:: STMicroelectronics

Category:: Diode Arrays

Package:: TO-247-3

Datasheet:: STPS80H100CY.pdf

Description:: DIODE ARR SCHOTT 100V 40A MAX247

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Product details

Overview

STPS80H100CY from STMicroelectronics is a dual common-cathode Schottky rectifier rated for 100 V repetitive peak reverse voltage, 40 A average forward current per diode (80 A total device), and 175 °C maximum junction temperature. It delivers low forward voltage drop (0.65 V typ. at 40 A, 125 °C) and negligible switching losses, optimized for high-frequency DC/DC converters in telecom and server power supplies.

For engineers reviewing the STPS80H100CY datasheet, STPS80H100CY pinout, STPS80H100CY application, or STPS80H100CY equivalent, key selection criteria include thermal resistance (R_th(j-c) = 0.7 °C/W per diode), avalanche capability (2822 W peak), and Max247 package compatibility with conduction-cooled heatsink mounting.

Technical Context

This dual-diode device operates as a synchronous rectification solution in high-frequency isolated DC/DC topologies, where low VF and fast recovery eliminate minority-carrier storage delay. Its common-cathode configuration enables independent anode control while sharing thermal path to case.

The Max247 package integrates two die with coupled thermal resistance (R_th(c) = 0.3 °C/W), enabling accurate junction temperature estimation when both diodes conduct simultaneously: ΔT_j(diode1) = P(diode1) × 0.7 + P(diode2) × 0.3.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - supports input stages up to 48 V telecom bus with 2× safety margin
I_F(AV)	2 × 40 A - enables 80 A total output current in parallel-phase converter legs
V_F (typ.)	0.65 V @ 40 A, 125 °C - reduces conduction loss to ~26 W per diode at full load
R_th(j-c)	0.7 °C/W per diode - allows ≤35 °C rise above heatsink at 50 W dissipation
P_ARM	2822 W @ 10 µs - withstands single-event surge transients without avalanche failure
T_j(max)	175 °C - enables operation in sealed telecom chassis with ambient up to 105 °C
I_R	20 µA @ 25 °C, V_RRM - minimizes standby leakage in always-on auxiliary rails

Pinout & Package

Package: Max247 - epoxy-encapsulated, UL94 V0 compliant, conduction-cooled outline with 3-terminal configuration (2 anodes + 1 common cathode). Dimensions: 20.0 × 15.6 × 14.7 mm (L × W × H), weight 4.90 g.

Pin/Terminal	Circuit Role	Design Meaning
A1	Anode 1	Input connection for first diode leg; electrically isolated but thermally coupled to A2 and K
A2	Anode 2	Input connection for second diode leg; shares cathode and thermal mass with A1
K	Common Cathode	Single output node for both diodes; primary thermal interface to heatsink via metal tab

Key Features

Feature	Design Value
Low VF at high T_j	0.65 V typ. @ 125 °C, 40 A - maintains efficiency >92% in 12 V out converters at full load
Avalanche-rated	2822 W peak power @ 10 µs - protects against inductive turn-off spikes in synchronous rectifiers
Thermal coupling control	R_th(c) = 0.3 °C/W between diodes - enables precise cross-thermal modeling for dual-leg phase-shifted ZVS designs
ECOPACK®2 compliance	Halogen-free, RoHS-compliant materials - meets IPC-1752A Class 2 reporting requirements for industrial OEMs

Applications

Telecom DC/DC Converters

Server VRMs

Use Scenario: 48 V to 12 V intermediate bus conversion in 19-inch rack systems with forced-air cooling.

IC Role / Device Role / Timing Role: Primary secondary-side rectifier in phase-shifted full-bridge topology.

Use Value: 0.65 V V_F reduces conduction loss by 18% vs. comparable 100 V Si diodes, lowering heatsink size by 35%.

Use Scenario: Multiphase 48 V to 0.8–1.8 V CPU/GPU VRMs with interleaved synchronous rectification.

IC Role / Device Role / Timing Role: Dual-leg synchronous rectifier per phase, leveraging common-cathode layout for compact PCB routing.

Use Value: R_th(j-c) = 0.7 °C/W enables 50 W/diode dissipation with <10 °C ΔT over copper baseplate, eliminating need for thermal vias.

LED Driver Power Stages

Industrial SMPS

Use Scenario: Constant-current LED string drivers operating from 36–75 V DC input in outdoor lighting fixtures.

IC Role / Device Role / Timing Role: Output rectifier in flyback or LLC resonant converter powering 100–200 W LED loads.

Use Value: 175 °C T_j(max) supports sealed IP67 enclosures with ambient up to 95 °C without derating.

Use Scenario: 24/48 V input industrial power supplies for PLCs and motor drives requiring high reliability.

IC Role / Device Role / Timing Role: Bulk rectifier in active-clamp forward or half-bridge topology with 100 kHz+ switching.

Use Value: Negligible reverse recovery eliminates snubber losses, improving efficiency by 0.8% at 50% load.

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-80CPH10	Same V_RRM (100 V), higher I_F(AV) (80 A per diode), TO-247AC package, R_th(j-c) = 0.55 °C/W	Requires larger heatsink footprint; better suited for single-diode high-current rails	Prefer when thermal budget allows discrete mounting and per-diode current exceeds 50 A
ON Semiconductor MBR80100CT	Same Max247 package, lower V_F (0.62 V typ.), but only 150 °C T_j(max) and no avalanche rating	Limited to commercial-temp environments; unsuitable for telecom surge immunity requirements	Acceptable for cost-sensitive consumer-grade 48 V adapters without transient protection needs

Compared with VS-80CPH10 and MBR80100CT, STPS80H100CY uniquely balances high-temperature operation (175 °C), avalanche robustness, and dual-diode integration in a thermally optimized Max247 housing-critical for space-constrained, mission-critical telecom and server power.

Availability

STPS80H100CY is available at Aetrix Electronics and suitable for telecom DC/DC converters, server VRMs, and industrial SMPS requiring stable component supply across multi-year production cycles.

Supply support for STPS80H100CY 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 automotive, industrial, and communications markets.

The STPS series targets high-efficiency power conversion, with the STPS80H100CY specifically engineered for high-frequency, high-reliability Schottky rectification in infrastructure-grade power supplies.

FAQ

What is the maximum allowable case temperature for continuous operation?

The datasheet specifies T_j(max) = 175 °C and R_th(j-c) = 0.7 °C/W per diode. With 40 A per diode and V_F = 0.65 V, power dissipation is ~26 W. To stay within junction limit, case temperature must not exceed 175 − (26 × 0.7) = 156.8 °C. Derating is required above 150 °C case temperature.

Can STPS80H100CY be used in parallel with another identical device?

No-parallel operation is not recommended. The Max247 package's thermal coupling (R_th(c) = 0.3 °C/W) causes mutual heating, and mismatched V_F drift with temperature leads to current imbalance. For >80 A, use a single higher-rated device or redesign with interleaved phases.

Is the common cathode internally bonded or externally accessible?

The cathode is externally accessible via the metal tab on the underside of the Max247 package, which serves as both electrical terminal and primary thermal interface. No internal bonding-K is a single, low-inductance, solderable surface for direct heatsink attachment.

Does ST provide SPICE models for this Schottky rectifier?

ST does not publish SPICE models for STPS80H100CY. Thermal and electrical behavior can be modeled using the datasheet's VF vs. IF curves, R_th(j-c), and IR vs. VR data. Application note AN604 provides validated conduction loss equations usable in system-level simulation tools.

STPS80H100CY Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: Q

Package/Case:: TO-247-3

Packaging:: Tube

Product Status:: Obsolete

Diode Configuration:: 1 Pair Common Cathode

Technology:: Schottky

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

Current - Average Rectified (Io) (per Diode):: 40A

Voltage - Forward (Vf) (Max) @ If:: 800 mV @ 40 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 20 µA @ 100 V

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: MAX247™

STPS80H100CY FAQ

1.How can I place an order for STPS80H100CY through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS80H100CY 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 STPS80H100CY reliable?

The price and inventory of STPS80H100CY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS80H100CY is usually 5 days.

3.What payment methods are accepted for STPS80H100CY?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS80H100CY transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS80H100CY?

STPS80H100CY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS80H100CY 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 STPS80H100CY?

For technical support, including STPS80H100CY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS80H100CY requirements.

6.How does Aetrix verify that STPS80H100CY is sourced from the original manufacturer or authorized distributors?

All STPS80H100CY 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 STPS80H100CY meets industry standards.

7.What is the process for return or replacement of STPS80H100CY?

All STPS80H100CY units undergo pre-shipment inspection (PSI). If there is an issue with STPS80H100CY, 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 STPS80H100CY part is unused and in its original packaging.

Return procedure for STPS80H100CY:

1.Submit a request within 90 days.

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

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