MBRF25100CTH Equivalent & Substitute Parts

Part Overview

The MBRF25100CTH is a Schottky diode array manufactured by Taiwan Semiconductor Corporation, configured as a 1 Pair Common Cathode with 100 V reverse voltage rating and 25 A average rectified current per diode. The device is packaged in TO-220-3 Full Pack with isolated tab (ITO-220AB) for through-hole mounting applications. This part is discontinued at DiGi Electronics, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility for ongoing production and repair requirements.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io) (per Diode)	25	A
Voltage - Forward (Vf) (Max) @ If	920 mV @ 25 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	100	µA @ 100 V
Operating Temperature - Junction	-55 to 150	°C
Mounting Type	Through Hole	—
Package / Case	TO-220-3 Full Pack, Isolated Tab	—
Supplier Device Package	ITO-220AB	—
RoHS Status	ROHS3 Compliant	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitution of the MBRF25100CTH is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Diode Configuration: 1 Pair Common Cathode (mandatory match)
Technology: Schottky (mandatory match)
Voltage - DC Reverse (Vr) (Max): 100 V (mandatory match)
Package / Case: TO-220-3 Full Pack, Isolated Tab (mandatory match)
Supplier Device Package: ITO-220AB (mandatory match)
Mounting Type: Through Hole (mandatory match)

Secondary Compatibility Parameters:

Current - Average Rectified (Io) (per Diode): Substitute must equal or exceed 25 A
Voltage - Forward (Vf) (Max) @ If: Lower values indicate improved efficiency
Current - Reverse Leakage @ Vr: Lower values indicate superior performance
Operating Temperature - Junction: Substitute range must encompass or exceed -55°C to 150°C
Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (mandatory match)
RoHS Status: ROHS3 Compliant (mandatory match)

Substitute parts are grouped by current rating. Parts with current ratings below 25 A are classified as reduced-capacity alternatives suitable only for applications with lower current requirements. Parts with current ratings at or above 25 A are classified as direct equivalents or upgrades.

Parameter Comparison

Part Number	Manufacturer	Io (A)	Vf (Max) @ If (mV)	Ir @ 100V (µA)	Tj (°C)	Product Status	Current Rating Classification
MBRF25100CTH	Taiwan Semiconductor Corporation	25	920 @ 25 A	100	-55 to 150	Discontinued	Reference Part
MBRF10100CT-E3/4W	Vishay General Semiconductor	5	850 @ 5 A	100	-65 to 150	Active	Reduced Capacity
MBRF20100CT-E3/4W	Vishay General Semiconductor	10	800 @ 10 A	100	-65 to 150	Active	Reduced Capacity
MBRF20H100CT-E3/45	Vishay General Semiconductor	10	770 @ 10 A	4.5	-65 to 175	Active	Reduced Capacity
MBRF30H100CT-E3/45	Vishay General Semiconductor	15	820 @ 15 A	5	-65 to 175	Active	Reduced Capacity
VF20100C-E3/4W	Vishay General Semiconductor	10	790 @ 10 A	800	-40 to 150	Active	Reduced Capacity
VF20100R-E3/4W	Vishay General Semiconductor	10	900 @ 10 A	150	-40 to 150	Active	Reduced Capacity
VF30100C-E3/4W	Vishay General Semiconductor	15	800 @ 15 A	500	-40 to 150	Active	Reduced Capacity
VF40100C-E3/4W	Vishay General Semiconductor	20	730 @ 20 A	1000	Not Specified	Active	Reduced Capacity
VF40100C-M3/4W	Vishay General Semiconductor	20	730 @ 20 A	1000	-40 to 150	Active	Reduced Capacity
VF40100G-E3/4W	Vishay General Semiconductor	20	810 @ 20 A	500	-40 to 150	Active	Reduced Capacity

Engineering Selection Recommendations

All identified substitute parts maintain compliance with ROHS3 and share the mandatory electrical and mechanical parameters: Schottky technology, 100 V reverse voltage rating, 1 Pair Common Cathode configuration, TO-220-3 Full Pack isolated tab package, and fast recovery speed characteristics.

Current Rating Considerations:

No substitute part in the provided list matches or exceeds the 25 A current rating of the MBRF25100CTH. All alternatives are classified as reduced-capacity substitutes with current ratings ranging from 5 A to 20 A. Selection of any substitute requires verification that the application circuit operates within the lower current specification of the chosen alternative.

Active Product Status:

All substitute parts listed maintain active product status with Vishay General Semiconductor, ensuring ongoing availability and supply chain continuity. The MBRF25100CTH discontinuation necessitates circuit redesign or application current reduction to accommodate available alternatives.

Temperature Range Considerations:

The MBRF25100CTH operates across -55°C to 150°C. Substitute parts MBRF20100CT-E3/4W and MBRF20H100CT-E3/45 extend the lower temperature limit to -65°C. Substitute parts VF20100C-E3/4W, VF20100R-E3/4W, VF30100C-E3/4W, VF40100C-E3/4W, VF40100C-M3/4W, and VF40100G-E3/4W operate across -40°C to 150°C, which does not encompass the full original temperature range.

Reverse Leakage Performance:

MBRF20H100CT-E3/45 and MBRF30H100CT-E3/45 demonstrate superior reverse leakage characteristics (4.5 µA and 5 µA respectively at 100 V) compared to the original part (100 µA at 100 V), indicating enhanced performance in this parameter.

Frequently Asked Questions (FAQ)

Q: Can MBRF10100CT-E3/4W, MBRF20100CT-E3/4W, or MBRF20H100CT-E3/45 directly replace MBRF25100CTH in existing designs?

A: These parts share identical package, configuration, voltage rating, and technology specifications. However, their current ratings (5 A, 10 A, and 10 A respectively) are below the original 25 A specification. Direct substitution is not possible without circuit redesign to operate within the lower current limits of the selected alternative.

Q: What is the difference between MBRF30H100CT-E3/45 and VF30100C-E3/4W?

A: Both parts are rated for 15 A and 100 V with identical package specifications. MBRF30H100CT-E3/45 operates across -65°C to 175°C with 5 µA reverse leakage at 100 V. VF30100C-E3/4W operates across -40°C to 150°C with 500 µA reverse leakage at 100 V. MBRF30H100CT-E3/45 provides superior temperature range and reverse leakage performance.

Q: Are VF40100C-E3/4W and VF40100G-E3/4W interchangeable?

A: Both parts are rated for 20 A and 100 V with identical package specifications and operating temperature range (-40°C to 150°C). VF40100C-E3/4W exhibits 1000 µA reverse leakage at 100 V, while VF40100G-E3/4W exhibits 500 µA reverse leakage at 100 V. VF40100G-E3/4W demonstrates superior reverse leakage performance. Forward voltage drop differs slightly (730 mV versus 810 mV at 20 A).

Q: Why do some substitute parts have lower forward voltage drops than the original MBRF25100CTH?

A: Forward voltage drop is a function of diode design, doping profile, and current rating. Parts with lower current ratings or different internal structures may exhibit lower forward voltage characteristics. MBRF20100CT-E3/4W (800 mV @ 10 A) and VF20100C-E3/4W (790 mV @ 10 A) demonstrate this characteristic compared to MBRF25100CTH (920 mV @ 25 A).

Q: What is the significance of the isolated tab in the TO-220-3 Full Pack, Isolated Tab package?

A: The isolated tab prevents electrical connection between the device tab and the mounting surface, allowing the tab to be used for heat dissipation without creating unintended electrical paths. All substitute parts maintain this isolated tab configuration, ensuring compatibility with existing thermal management designs.

Q: Can I use VF40100C-M3/4W instead of VF40100C-E3/4W?

A: Both parts are rated for 20 A and 100 V with identical forward voltage characteristics (730 mV @ 20 A) and reverse leakage (1000 µA @ 100 V). The primary difference is that VF40100C-M3/4W specifies operating temperature range (-40°C to 150°C), while VF40100C-E3/4W does not specify this parameter. VF40100C-M3/4W is the preferred selection when temperature range specification is required.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 Compliant status, matching the original MBRF25100CTH specification.

Q: What is the automotive qualification status of substitute parts?

A: The original MBRF25100CTH carries Automotive grade with AEC-Q101 qualification. The provided substitute part specifications do not include automotive grade or AEC-Q101 qualification data. Applications requiring automotive qualification should verify this requirement with the component manufacturer before selection.

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