USB260HE3/52T Equivalent & Substitute Parts

Part Overview

The USB260HE3/52T is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 600 V DC reverse voltage and 2 A average rectified current in a DO-214AA (SMB) surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The USB260HE3/52T operates across a junction temperature range of -55°C to 150°C and features fast recovery characteristics with a reverse recovery time of 30 ns. It is RoHS3 compliant and carries unlimited moisture sensitivity level (MSL 1).

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.6 @ 2 A	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	30	ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V	µA
Mounting Type	Surface Mount	—
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the USB260HE3/52T is determined by the following critical parameters:

Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 600 V minimum
Current - Average Rectified (Io): 2 A minimum
Voltage - Forward (Vf) (Max) @ If: Must not exceed application requirements
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr): 30 ns nominal

Mechanical Parameters:

Mounting Type: Surface Mount
Package / Case: DO-214AA, SMB

Compliance Parameters:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories:

Category 1: Parametric Equivalents (Vishay USB260 Series) These parts share identical electrical specifications and base product number USB260. They differ only in packaging format (Cut Tape vs. Tape & Reel) and product status (Active vs. Obsolete). Automotive-grade variants with AEC-Q101 qualification are included in this category.

Category 2: Manufacturer-Recommended Alternatives These parts meet or exceed the electrical requirements of the USB260HE3/52T but originate from different manufacturers. They are classified as either direct electrical equivalents (ER2J-LTP from Micro Commercial Co, STTH2L06U from STMicroelectronics) or higher-rated alternatives (S3KB series rated for 800 V / 3 A, STTH1 series rated for 600 V / 1 A).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Speed	Package	Product Status	Packaging Format
USB260HE3/52T	Vishay	600	2	1.6 @ 2 A	30	Fast Recovery ≤ 500ns	DO-214AA, SMB	Obsolete	Cut Tape (CT)
USB260-M3/52T	Vishay	600	2	1.6 @ 2 A	30	Fast Recovery ≤ 500ns	DO-214AA, SMB	Active	Cut Tape (CT)
USB260-M3/5BT	Vishay	600	2	1.6 @ 2 A	30	Fast Recovery ≤ 500ns	DO-214AA, SMB	Active	Tape & Reel (TR)
USB260HM3/52T	Vishay	600	2	1.6 @ 2 A	30	Fast Recovery ≤ 500ns	DO-214AA, SMB	Active	Tape & Reel (TR)
USB260HM3/5BT	Vishay	600	2	1.6 @ 2 A	30	Fast Recovery ≤ 500ns	DO-214AA, SMB	Active	Tape & Reel (TR)
ER2J-LTP	Micro Commercial Co	600	2	1.7 @ 2 A	35	Fast Recovery ≤ 500ns	DO-214AA, SMB	Active	Tape & Reel (TR)
STTH2L06U	STMicroelectronics	600	2	1.3 @ 2 A	85	Fast Recovery ≤ 500ns	DO-214AA, SMB	Active	Cut Tape (CT) & Digi-Reel®
S3KB-13-F	Diodes Incorporated	800	3	1.15 @ 3 A	—	Standard Recovery >500ns	DO-214AA, SMB	Active	Tape & Reel (TR)
STTH1R06U	STMicroelectronics	600	1	1.7 @ 1 A	45	Fast Recovery ≤ 500ns	DO-214AA, SMB	Active	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement)

The Vishay USB260 series variants—USB260-M3/52T, USB260-M3/5BT, USB260HM3/52T, and USB260HM3/5BT—are the preferred substitutes. These parts maintain identical electrical specifications to the obsolete USB260HE3/52T and share the same base product number. All variants are Active status and RoHS3 compliant.

Selection between these variants depends on packaging requirements:

USB260-M3/52T and USB260HE3/52T: Cut Tape (CT) format
USB260-M3/5BT and USB260HM3/5BT: Tape & Reel (TR) format for automated assembly

The automotive-grade variants (USB260HM3/52T and USB260HM3/5BT) carry AEC-Q101 qualification and are suitable for applications requiring automotive-level reliability.

Secondary Substitutes (Electrical Equivalents with Minor Deviations)

ER2J-LTP from Micro Commercial Co meets the 600 V / 2 A electrical requirements with marginally higher forward voltage (1.7 V vs. 1.6 V) and reverse recovery time (35 ns vs. 30 ns). This part is Active status and RoHS3 compliant.

STTH2L06U from STMicroelectronics provides superior forward voltage characteristics (1.3 V @ 2 A) but exhibits longer reverse recovery time (85 ns). This part is suitable for applications where lower forward voltage drop is beneficial.

Higher-Rated Alternatives (Derating Applications)

S3KB-13-F from Diodes Incorporated is rated for 800 V / 3 A, providing design margin for applications requiring higher voltage or current headroom. This part operates with standard recovery characteristics (>500ns) rather than fast recovery.

STTH1R06U from STMicroelectronics is rated for 600 V / 1 A and is suitable only for applications requiring reduced current capacity.

All recommended substitutes maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity level.

Frequently Asked Questions (FAQ)

Q: Can USB260-M3/52T directly replace USB260HE3/52T?

A: Yes. USB260-M3/52T is a parametric equivalent with identical electrical specifications (600 V, 2 A, 1.6 V forward voltage, 30 ns reverse recovery time) and the same DO-214AA SMB package. The primary difference is product status (Active vs. Obsolete) and packaging format (both are Cut Tape). This is the recommended direct replacement.

Q: What is the difference between USB260-M3/5BT and USB260-M3/52T?

A: Both parts are electrically identical. The difference is packaging format: USB260-M3/5BT is supplied in Tape & Reel (TR) format for automated assembly, while USB260-M3/52T is supplied in Cut Tape (CT) format. Selection depends on assembly process requirements.

Q: Are automotive-grade variants (USB260HM3/52T, USB260HM3/5BT) compatible with non-automotive applications?

A: Yes. Automotive-grade parts with AEC-Q101 qualification exceed the requirements of standard industrial applications. They can be used in any application where the standard variants are specified, providing additional reliability margin.

Q: Can ER2J-LTP from Micro Commercial Co be used as a substitute?

A: ER2J-LTP meets the 600 V / 2 A electrical requirements and is Active status with RoHS3 compliance. Forward voltage is slightly higher (1.7 V vs. 1.6 V) and reverse recovery time is marginally longer (35 ns vs. 30 ns). It is suitable for applications where these minor deviations are acceptable.

Q: Why is STTH2L06U listed as an alternative despite longer reverse recovery time?

A: STTH2L06U provides superior forward voltage characteristics (1.3 V @ 2 A compared to 1.6 V), which reduces power dissipation in applications with high current density. The longer reverse recovery time (85 ns) may be acceptable in applications where switching speed is not critical. This part is suitable for thermal optimization scenarios.

Q: Can S3KB-13-F replace USB260HE3/52T in all applications?

A: S3KB-13-F is rated for higher voltage (800 V) and current (3 A) but operates with standard recovery characteristics (>500ns) rather than fast recovery (≤500ns). It is suitable for applications requiring higher voltage or current derating but may not be appropriate for high-frequency switching applications where fast recovery is required.

Q: What packaging formats are available for the USB260 series?

A: Vishay USB260 series substitutes are available in two packaging formats: Cut Tape (CT) for manual or semi-automated assembly, and Tape & Reel (TR) for fully automated pick-and-place assembly. Selection depends on manufacturing process requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed in this reference are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity level, matching the compliance profile of the USB260HE3/52T.

Q: What is the operating temperature range for substitute parts?

A: Vishay USB260 series variants and most STMicroelectronics parts operate across -55°C to 150°C junction temperature. ER2J-LTP extends to -65°C to 175°C. S3KB-13-F from Diodes Incorporated operates to -65°C to 150°C. Verify application temperature requirements before selection.

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