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

STMicroelectronics STPS30H100CT

Name: STPS30H100CT
Brand: STMicroelectronics
SKU: STPS30H100CT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS30H100CT

Manufacturer:: STMicroelectronics

Category:: Diode Arrays

Package:: TO-220-3

Datasheet:: STPS30H100CT.pdf

Description:: DIODE ARR SCHOTT 100V 15A TO-220

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Product details

Overview

STPS30H100CT from STMicroelectronics is a dual common-cathode Schottky rectifier in TO-220AB package, rated for 100 V repetitive peak reverse voltage, 2 × 15 A average forward current per diode at TC = 155 °C, and 0.64 V typical forward voltage drop at 15 A / 125 °C. It is avalanche-rated, ECOPACK®2-compliant, and optimized for high-frequency DC/DC converters and LED lighting power stages.

For engineers reviewing the STPS30H100CT datasheet, STPS30H100CT pinout, STPS30H100CT application, or STPS30H100CT equivalent, key selection criteria include low conduction loss (VF ≤ 0.80 V @ 15 A, 25 °C), thermal robustness (Tj max = 175 °C), dual-diode integration for half-bridge or synchronous rectification, and TO-220AB mechanical compatibility with standard heatsink mounting.

Technical Context

This dual Schottky rectifier integrates two independent anodes sharing a common cathode terminal, enabling use in center-tapped or dual-output topologies without external interconnection. Its low VF and negligible switching losses stem from platinum-silicide Schottky barrier technology, not PN junction recovery.

Thermal design relies on junction-to-case resistance of 0.9 °C/W (total device) and coupling resistance of 0.10 °C/W between diodes - critical when both diodes conduct simultaneously, as self-heating in one diode affects the other's junction temperature via shared thermal path.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	100 V - supports input rails up to 85 V DC in offline SMPS or 48 V bus systems with margin
IF(AV) per diode	15 A at TC = 155 °C - enables continuous 30 A total output in dual-phase or interleaved converter designs
VF (typ)	0.64 V @ 15 A, 125 °C - reduces conduction loss to ~9.6 W per diode under full load, minimizing heatsink size
IR (max)	6 mA @ 125 °C, VR = 100 V - limits standby leakage in always-on LED drivers or auxiliary supplies
Tj (max)	+175 °C - allows operation in sealed enclosures or high-ambient industrial environments without derating
Rth(j-c)	0.9 °C/W (total) - requires ≥ 0.9 °C/W heatsink thermal resistance to maintain Tj ≤ 175 °C at full 30 A load
PARM	778 W @ tp = 10 µs - withstands short-circuit energy in overcurrent protection schemes without failure

Pinout & Package

TO-220AB package with isolated mounting tab (cathode-connected tab), 3-pin configuration: Pin 1 (Anode 1), Pin 2 (Cathode), Pin 3 (Anode 2). Mounting torque: 0.55 N·m recommended, 0.70 N·m maximum. Epoxy meets UL94 V0.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode 1	Input terminal for first diode leg; electrically isolated from tab and Pin 3
Pin 2	Cathode (common)	Shared cathode node; internally bonded to metal tab - must be electrically connected to system ground or negative rail
Pin 3	Anode 2	Input terminal for second diode leg; electrically isolated from tab and Pin 1

Key Features

Feature	Design Value
Negligible switching losses	No reverse recovery charge (Qrr ≈ 0), eliminating turn-off spikes and EMI in >100 kHz DC/DC converters
Avalanche rated	Withstands 778 W repetitive avalanche pulse (tp = 10 µs), enabling ruggedness in inductive load switching
Low VF / IR trade-off	0.64 V VF @ 125 °C + 6 mA IR @ 125 °C - balances efficiency and leakage better than generic Schottkys
ECOPACK®2 compliant	Meets RoHS, halogen-free, and lead-free requirements without compromising thermal or electrical performance

Applications

AC-DC Adapter Power Stage

LED Driver Secondary Rectification

Use Scenario: 12 V/24 V output stage in universal-input wall adapters using flyback topology.

IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier providing synchronous rectification for both positive and negative half-cycles in center-tapped secondary winding.

Use Value: Reduces conduction loss by 35% vs. fast recovery diodes, enabling >90% efficiency at 25–100% load and eliminating snubber networks.

Use Scenario: Constant-current LED string driver with buck-derived secondary-side rectification.

IC Role / Device Role / Timing Role: Common-cathode dual rectifier delivering isolated, low-loss DC to parallel LED branches with shared return path.

Use Value: Enables compact heatsink design due to 0.64 V VF at 125 °C, supporting ambient temperatures up to 85 °C in enclosed luminaires.

Industrial DC/DC Converter

Automotive Auxiliary Power Supply

Use Scenario: 48 V to 12 V isolated DC/DC module for programmable logic controllers and I/O modules.

IC Role / Device Role / Timing Role: Dual-leg rectifier in forward converter secondary, handling 15 A per leg with shared thermal mass.

Use Value: Junction temperature remains ≤165 °C at full load with standard TO-220 heatsink, avoiding thermal shutdown during transient surges.

Use Scenario: 24 V to 5 V/3.3 V auxiliary supply in commercial vehicle infotainment systems.

IC Role / Device Role / Timing Role: Dual-output rectifier powering separate 5 V microcontroller rail and 3.3 V sensor interface rail from single transformer secondary.

Use Value: Avalanche rating ensures survival during load dump transients (ISO 7637-2 Pulse 5a), 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-30CPH01-M3	Same VRRM (100 V), higher IF(AV) per diode (16 A), VF = 0.72 V @ 15 A, 25 °C - 12% higher conduction loss	TO-247 package only; larger footprint and higher mounting torque (1.0 N·m)	Select when higher surge current rating (IFS M = 300 A) is required and board space permits TO-247
ON Semiconductor MBR30H100CT	Identical VRRM (100 V), same TO-220AB package, VF = 0.75 V @ 15 A, 25 °C - 17% higher VF than STPS30H100CT	Non-avalanche rated; no PARM specification - unsuitable for inductive fault conditions	Select only for cost-sensitive, non-safety-critical consumer applications where avalanche robustness is not required

Compared with VS-30CPH01-M3 and MBR30H100CT, STPS30H100CT delivers the lowest VF at elevated temperature and unique avalanche capability in TO-220AB - making it optimal for thermally constrained, high-reliability industrial and automotive auxiliary supplies.

Availability

STPS30H100CT is available at Aetrix Electronics and suitable for AC-DC adapters, LED lighting drivers, and industrial DC/DC converters requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for STPS30H100CT 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.

The STPS30H100CT belongs to ST's high-efficiency power Schottky rectifier product line, engineered specifically for high-frequency switch-mode power supplies where low VF, thermal stability, and avalanche ruggedness are mandatory.

FAQ

Is STPS30H100CT pin-compatible with STPS30H100CW?

No. STPS30H100CT uses TO-220AB package with 3 pins in straight-line configuration and isolated mounting tab. STPS30H100CW uses TO-247 package with 3 pins in staggered layout and different mechanical dimensions. PCB footprints, heatsink holes, and torque specifications are incompatible.

Can STPS30H100CT replace a single 30 A Schottky diode?

No. STPS30H100CT contains two independent 15 A diodes sharing a cathode - it cannot substitute a single-anode/single-cathode 30 A device. It is designed for dual-leg topologies (e.g., center-tapped windings), not single-path conduction.

What is the maximum allowable case temperature for continuous 30 A operation?

At 30 A total (15 A per diode), the maximum case temperature is 155 °C - per the IF(AV) rating definition in Table 1. Exceeding this causes irreversible thermal derating; sustained operation above 155 °C violates the 15 A per diode rating and risks premature failure.

Does the cathode tab require electrical isolation from the heatsink?

No. The metal tab is internally connected to the common cathode (Pin 2) and must be electrically tied to the system's negative rail or ground reference. Isolation would break the circuit path and render the device inoperable.

STPS30H100CT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-220-3

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):: 15A

Voltage - Forward (Vf) (Max) @ If:: 800 mV @ 15 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 5 µA @ 100 V

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

STPS30H100CT FAQ

1.How can I place an order for STPS30H100CT through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS30H100CT 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 STPS30H100CT reliable?

The price and inventory of STPS30H100CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS30H100CT is usually 5 days.

3.What payment methods are accepted for STPS30H100CT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS30H100CT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS30H100CT?

STPS30H100CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS30H100CT 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 STPS30H100CT?

For technical support, including STPS30H100CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS30H100CT requirements.

6.How does Aetrix verify that STPS30H100CT is sourced from the original manufacturer or authorized distributors?

All STPS30H100CT 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 STPS30H100CT meets industry standards.

7.What is the process for return or replacement of STPS30H100CT?

All STPS30H100CT units undergo pre-shipment inspection (PSI). If there is an issue with STPS30H100CT, 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 STPS30H100CT part is unused and in its original packaging.

Return procedure for STPS30H100CT:

1.Submit a request within 90 days.

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

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