MBRF20H100CTG Equivalent & Substitute Parts

Part Overview

The MBRF20H100CTG is a Schottky diode array manufactured by onsemi, configured as a 1 Pair Common Cathode with 100 V reverse voltage rating and 10A average rectified current per diode. The device is packaged in TO-220-3 Full Pack through-hole configuration and operates at a maximum junction temperature of 175°C. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

MBRF20H100CTG

onsemiIn Stock: 2202MBRF20H100CTG Datasheet

Current PartRFQ

MBRF20100CT-E3/4W

Vishay General Semiconductor - Diodes DivisionIn Stock: 1659MBRF20100CT-E3/4W Datasheet

DirectRFQ

MBRF20H100CT-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 1418MBRF20H100CT-E3/45 Datasheet

DirectRFQ

STPS10H100CFP

STMicroelectronicsIn Stock: 3348STPS10H100CFP Datasheet

SimilarRFQ

STPS20H100CFP

STMicroelectronicsIn Stock: 105150STPS20H100CFP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRF20H100CTG is determined by strict electrical and mechanical parameter matching within the Schottky diode rectifier category. The following parameters establish substitution eligibility:

Critical Parameters for Direct Substitution:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 100 V
• Current - Average Rectified (Io) (per Diode): 10A
• Mounting Type: Through Hole
• Package / Case: TO-220-3 Full Pack

Acceptable Parameter Variations:

• Voltage - Forward (Vf) (Max) @ If: ±30 mV tolerance
• Current - Reverse Leakage @ Vr: Within specified range
• Operating Temperature - Junction: Equal to or exceeding 175°C maximum
• Package mechanical configuration: TO-220-3 Full Pack or isolated tab variant (ITO-220AB)

Partial Substitution (Current Derating):

• Parts with reduced current rating (5A instead of 10A) are classified as similar but require application review for current capacity adequacy.

Parameter Comparison

Engineering Selection Recommendations

Direct Parametric Equivalents (Full Substitution):

STPS20H100CFP (STMicroelectronics) is the primary parametric equivalent to MBRF20H100CTG. Both devices share identical electrical specifications: 100 V reverse voltage, 10A average rectified current per diode, 770 mV forward voltage at 10A, and 175°C maximum junction temperature. The STPS20H100CFP is actively manufactured and ROHS3 compliant, providing long-term supply continuity. Package configuration is TO-220-3 Full Pack, matching the original part.

Direct Manufacturer Equivalents (Full Substitution with Package Variation):

MBRF20H100CT-E3/45 (Vishay) provides full electrical equivalence with identical forward voltage (770 mV @ 10A), reverse leakage (4.5 µA @ 100V), and temperature rating (175°C maximum). The package is TO-220-3 Full Pack with isolated tab (ITO-220AB), which is mechanically compatible with standard TO-220-3 applications. This part is actively manufactured and ROHS3 compliant.

MBRF20100CT-E3/4W (Vishay) matches all critical parameters except forward voltage (800 mV @ 10A versus 770 mV) and maximum junction temperature (150°C versus 175°C). The elevated forward voltage and reduced temperature rating represent functional limitations in high-temperature or efficiency-sensitive applications. Current - Reverse Leakage is specified at 100 µA @ 100V, which exceeds the original specification. This part is actively manufactured and ROHS3 compliant.

Partial Substitution (Current Derating Required):

STPS10H100CFP (STMicroelectronics) is classified as a similar part with reduced current capacity. The device is rated for 5A average rectified current per diode, compared to 10A for the MBRF20H100CTG. All other electrical parameters align: 100 V reverse voltage, fast recovery speed, and 175°C maximum junction temperature. This part is suitable only for applications where the 5A current rating is adequate. The part is actively manufactured and ROHS3 compliant.

Compliance and Supply Status:

All substitute parts carry ROHS3 compliance and REACH Unaffected status, matching the regulatory profile of the original part. STPS20H100CFP offers the highest inventory availability (105,100 pieces), ensuring supply security. MBRF20H100CT-E3/45 and MBRF20100CT-E3/4W provide alternative sourcing through Vishay with active product status.

Frequently Asked Questions (FAQ)

Q: Can STPS20H100CFP directly replace MBRF20H100CTG in all applications?

A: Yes. STPS20H100CFP is a parametric equivalent with identical electrical specifications: 100 V reverse voltage, 10A average rectified current per diode, 770 mV forward voltage at 10A, and 175°C maximum junction temperature. Both use TO-220-3 Full Pack through-hole packaging. The primary difference is manufacturer (STMicroelectronics versus onsemi) and active product status.

Q: What is the difference between TO-220-3 Full Pack and ITO-220AB packaging?

A: Both are TO-220-3 Full Pack configurations suitable for through-hole mounting. ITO-220AB denotes an isolated tab variant, where the mounting tab is electrically isolated from the device leads. Standard TO-220-3 Full Pack may have a conducting tab. Mechanical compatibility is maintained in both cases for standard TO-220 mounting hardware.

Q: Why does MBRF20100CT-E3/4W show higher reverse leakage (100 µA) compared to the original part (4.5 µA)?

A: Current - Reverse Leakage @ Vr is a specified parameter that varies by device design and manufacturing process. The MBRF20100CT-E3/4W specification of 100 µA @ 100V is within acceptable limits for Schottky diode arrays but represents a higher leakage characteristic than the original MBRF20H100CTG. Applications sensitive to leakage current should prioritize STPS20H100CFP or MBRF20H100CT-E3/45.

Q: Can STPS10H100CFP be used as a substitute if the application only requires 5A?

A: Yes, STPS10H100CFP is suitable for applications where the maximum current requirement does not exceed 5A per diode. The device maintains all other electrical specifications: 100 V reverse voltage, fast recovery speed, and 175°C maximum junction temperature. Current capacity is the limiting factor; all other parameters are compatible.

Q: What is the significance of the MBRF20H100CTG being classified as obsolete?

A: Obsolete status indicates that onsemi has discontinued manufacturing and support for this part. Substitute parts are necessary to ensure continued design support, procurement availability, and long-term supply chain reliability. All recommended substitutes are actively manufactured by their respective suppliers.

Q: Are there any thermal performance differences between the substitute parts?

A: MBRF20H100CT-E3/4W has a maximum junction temperature of 150°C, compared to 175°C for MBRF20H100CTG, STPS20H100CFP, and STPS10H100CFP. Applications operating near the upper temperature limit should avoid MBRF20100CT-E3/4W. Forward voltage dissipation characteristics may vary slightly between manufacturers, affecting thermal performance in high-current applications.

Q: Is RoHS3 compliance required for my application?

A: All substitute parts listed are ROHS3 compliant. The original MBRF20H100CTG does not specify RoHS status. If RoHS3 compliance is a design requirement, all recommended substitutes satisfy this criterion.