FEPB6DTHE3/45 Equivalent & Substitute Parts

Part Overview

The FEPB6DTHE3/45 is a diode array rectifier manufactured by Vishay General Semiconductor - Diodes Division, configured as a 1 Pair Common Cathode design rated for 200 V DC reverse voltage and 6 A average rectified current per diode. The component is housed in a TO-263-3 D2PAK surface mount package with 2 leads plus tab configuration.

This part carries an Obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode array configuration.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Voltage - DC Reverse (Vr) (Max)	200 V
Current - Average Rectified (Io) (per Diode)	6 A
Voltage - Forward (Vf) (Max) @ If	975 mV @ 3 A
Speed Classification	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Reverse Recovery Time (trr)	35 ns
Current - Reverse Leakage @ Vr	5 µA @ 200 V
Operating Temperature - Junction	-55°C ~ 150°C
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type	Surface Mount
Grade	Automotive
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the FEPB6DTHE3/45 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Diode Configuration: 1 Pair Common Cathode
Voltage - DC Reverse (Vr) (Max): 200 V minimum
Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type: Surface Mount
Current - Average Rectified (Io) (per Diode): 6 A minimum per diode

Secondary Compatibility Parameters:

Speed Classification: Fast Recovery ≤ 500 ns, > 200 mA (Io)
RoHS Status: ROHS3 Compliant
Operating Temperature Range: Must support minimum -55°C to 150°C junction temperature

Substitute parts are grouped into three categories based on current rating:

Category 1 - Direct Current Match (5 A to 6 A): Parts with current ratings at or near the original 6 A specification, including SBR10200CTB and SBR10200CTB-13-G.

Category 2 - Moderate Current Upgrade (8 A): Parts with increased current capacity suitable for applications with higher current demands, including MURB1620CTT4G and STTH1002CG-TR.

Category 3 - High Current Upgrade (10 A to 20 A): Parts with significantly elevated current ratings for demanding applications, including FFB20UP20DN-F085, SBR20A200CTB, SBR20A200CTB-13, SBR40U200CTB, and SBR40U200CTB-13.

All substitute parts maintain the 200 V reverse voltage rating, TO-263-3 D2PAK package configuration, and fast recovery speed classification required for functional equivalence.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (per Diode)	Vf (Max) @ If	trr (ns)	Ir @ Vr	Tj (Operating)	Product Status	Package
FEPB6DTHE3/45	Vishay	200 V	6 A	975 mV @ 3 A	35 ns	5 µA @ 200 V	-55°C ~ 150°C	Obsolete	TO-263-3 D2PAK
FFB20UP20DN-F085	onsemi	200 V	10 A	1.15 V @ 10 A	40 ns	10 µA @ 200 V	-55°C ~ 175°C	Active	TO-263-3 D2PAK
MURB1620CTT4G	onsemi	200 V	8 A	975 mV @ 8 A	35 ns	5 µA @ 200 V	-65°C ~ 175°C	Active	TO-263-3 D2PAK
SBR10200CTB	Diodes Inc.	200 V	5 A	920 mV @ 5 A	20 ns	5 µA @ 200 V	-65°C ~ 175°C	Active	TO-263-3 D2PAK
SBR10200CTB-13-G	Diodes Inc.	200 V	5 A	920 mV @ 5 A	20 ns	5 µA @ 200 V	-65°C ~ 175°C	Active	TO-263-3 D2PAK
SBR20A200CTB	Diodes Inc.	200 V	10 A	960 mV @ 20 A	30 ns	100 µA @ 200 V	-65°C ~ 175°C	Active	TO-263-3 D2PAK
SBR20A200CTB-13	Diodes Inc.	200 V	10 A	960 mV @ 20 A	30 ns	100 µA @ 200 V	-65°C ~ 175°C	Active	TO-263-3 D2PAK
SBR40U200CTB	Diodes Inc.	200 V	20 A	930 mV @ 20 A	50 ns	200 µA @ 200 V	-65°C ~ 175°C	Active	TO-263-3 D2PAK
SBR40U200CTB-13	Diodes Inc.	200 V	20 A	930 mV @ 20 A	50 ns	200 µA @ 200 V	-65°C ~ 175°C	Active	TO-263-3 D2PAK
SDURB1520CT	SMC Diode Solutions	200 V	Not Specified	1.2 V @ 8 A	35 ns	5 µA @ 200 V	-55°C ~ 150°C	Active	TO-263-3 D2PAK
STTH1002CG-TR	STMicroelectronics	200 V	8 A	1.1 V @ 5 A	25 ns	5 µA @ 200 V	-55°C ~ 175°C	Active	TO-263-3 D2PAK

Engineering Selection Recommendations

For Direct Replacement with Minimum Design Impact:

SBR10200CTB and SBR10200CTB-13-G are suitable direct replacements when current requirements do not exceed 5 A per diode. Both parts are manufactured by Diodes Incorporated, carry Active product status, maintain the 200 V reverse voltage specification, and are housed in the identical TO-263-3 D2PAK package. These parts feature Super Barrier technology with improved forward voltage characteristics (920 mV @ 5 A) and reduced reverse recovery time (20 ns) compared to the original FEPB6DTHE3/45. Both are ROHS3 compliant and AEC-Q101 qualified for automotive applications.

For Applications Requiring Increased Current Capacity:

MURB1620CTT4G (onsemi) provides an 8 A current rating with matching forward voltage (975 mV @ 8 A) and reverse recovery time (35 ns) to the original part. This part is Active, ROHS3 compliant, and extends the operating temperature range to -65°C ~ 175°C. The SWITCHMODE™ series designation indicates suitability for switching power supply applications.

STTH1002CG-TR (STMicroelectronics) offers 8 A current capacity with superior reverse recovery time (25 ns) and is Active with ROHS3 compliance. Operating temperature extends to 175°C maximum.

For High-Current Applications:

FFB20UP20DN-F085 (onsemi), SBR20A200CTB, SBR20A200CTB-13, SBR40U200CTB, and SBR40U200CTB-13 provide current ratings of 10 A to 20 A per diode. All are Active, ROHS3 compliant, and support extended operating temperature ranges (-55°C to -65°C minimum, 175°C maximum). These parts accommodate applications with significantly elevated current demands while maintaining the 200 V reverse voltage and TO-263-3 D2PAK package specifications.

Compliance and Certification:

All substitute parts listed maintain ROHS3 compliance and are suitable for automotive-grade applications. The original FEPB6DTHE3/45 carries Automotive grade and AEC-Q101 qualification. Substitute parts from onsemi and Diodes Incorporated maintain equivalent automotive qualifications. REACH status is unaffected for all recommended substitutes.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher current rating than the original FEPB6DTHE3/45?

A: Yes. The FEPB6DTHE3/45 is rated for 6 A per diode. Substitute parts with higher current ratings (8 A, 10 A, or 20 A) are electrically compatible and will function in the original application. Higher current ratings provide design margin and do not create incompatibility. The 200 V reverse voltage rating, 1 Pair Common Cathode configuration, and TO-263-3 D2PAK package remain constant across all substitute options.

Q: What is the difference between SBR10200CTB and SBR10200CTB-13-G?

A: Both parts are manufactured by Diodes Incorporated with identical electrical specifications: 200 V reverse voltage, 5 A current rating, 920 mV forward voltage @ 5 A, and 20 ns reverse recovery time. The primary difference is packaging: SBR10200CTB is supplied in Tube packaging, while SBR10200CTB-13-G is supplied in Tape & Reel (TR) format. Both are housed in TO-263-3 D2PAK and are electrically interchangeable.

Q: Are all substitute parts suitable for automotive applications?

A: All substitute parts listed are ROHS3 compliant and carry Active product status. Diodes Incorporated and onsemi parts maintain automotive-grade qualifications equivalent to the original FEPB6DTHE3/45. STMicroelectronics STTH1002CG-TR is ROHS3 compliant and Active. SMC Diode Solutions SDURB1520CT is ROHS3 compliant and Active, though REACH status is listed as Affected. Verify specific automotive qualification requirements with component datasheets for your application.

Q: What is the significance of the reverse recovery time (trr) parameter?

A: Reverse recovery time indicates the speed at which the diode transitions from conducting to blocking state. The original FEPB6DTHE3/45 specifies 35 ns. Substitute parts range from 20 ns (SBR10200CTB series) to 50 ns (SBR40U200CTB series). Faster recovery times (lower trr values) reduce switching losses and electromagnetic interference in high-frequency applications. Slower recovery times do not create incompatibility but may result in higher switching losses.

Q: Can I substitute the FEPB6DTHE3/45 with a part rated for lower current?

A: No. The FEPB6DTHE3/45 is rated for 6 A per diode. Substitute parts with lower current ratings (such as SBR10200CTB at 5 A) do not provide adequate current capacity and will exceed thermal and electrical limits. Only substitute parts with equal or higher current ratings are acceptable.

Q: What is the difference between Standard and Super Barrier diode technology?

A: The original FEPB6DTHE3/45 uses Standard technology. Several substitute options, including the SBR series (SBR10200CTB, SBR20A200CTB, SBR40U200CTB), employ Super Barrier technology. Super Barrier diodes typically exhibit lower forward voltage drop and faster reverse recovery times, resulting in improved efficiency and reduced heat generation. Both technologies are compatible within the specified electrical parameters.

Q: Are there any temperature range limitations when substituting parts?

A: The original FEPB6DTHE3/45 operates from -55°C to 150°C junction temperature. Most substitute parts extend the upper temperature limit to 175°C, providing additional thermal margin. Some substitutes (MURB1620CTT4G, SBR series) extend the lower temperature limit to -65°C. Extended temperature ranges do not create incompatibility; they provide additional design flexibility. Verify that your application's thermal environment remains within the specified operating range.

Q: What does the "-13" suffix in part numbers like SBR10200CTB-13-G indicate?

A: The "-13" suffix typically indicates a specific manufacturing revision or tape & reel packaging specification. SBR10200CTB-13-G is the Tape & Reel variant of SBR10200CTB. Both parts are electrically identical and functionally interchangeable. The "-G" suffix indicates green (lead-free) RoHS compliance.

Q: Is the TO-263-3 D2PAK package identical across all substitute parts?

A: Yes. All substitute parts listed are housed in the TO-263-3 D2PAK (2 Leads + Tab) package configuration, designated as TO-263AB. This package is physically and electrically identical across all manufacturers listed. Direct PCB footprint compatibility is maintained for all substitutions.

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