USB260-M3/5BT Equivalent & Substitute Parts

Part Overview

The USB260-M3/5BT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode operates at 600 V DC reverse voltage with a 2 A average rectified current rating and is packaged in the DO-214AA (SMB) form factor. The device is classified as a fast recovery diode with a 30 ns reverse recovery time and is currently in active production status with ROHS3 compliance.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the same package type and functional category. Alternative sources and packaging configurations are documented to support procurement flexibility and supply chain continuity.

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	V @ 2 A
Reverse Recovery Time (trr)	30	ns
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the USB260-M3/5BT is determined by the following critical parameters:

Mandatory Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 600 V
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Technology: Standard (Fast Recovery)

Allowable Variation Criteria:

Current - Average Rectified (Io): Equal or greater than 2 A
Voltage - Forward (Vf) (Max): Within application tolerance
Reverse Recovery Time (trr): Within application tolerance
Operating Temperature Range: Equal or wider than -55°C to 150°C
Packaging Configuration: Tape & Reel (TR) or Cut Tape (CT)

Parts are grouped into three categories: parametric equivalents (identical electrical specifications with different packaging), automotive-qualified variants (AEC-Q101 certified), and manufacturer-recommended alternatives (different manufacturers with compatible performance).

Parameter Comparison

Parameter	USB260-M3/5BT	USB260-M3/52T	USB260HM3/52T	ER2J-LTP	HS3JB
Manufacturer	Vishay	Vishay	Vishay	Micro Commercial Co	Taiwan Semiconductor
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	2 A	2 A	2 A	2 A	3 A
Voltage - Forward (Vf) (Max) @ If	1.6 V @ 2 A	1.6 V @ 2 A	1.6 V @ 2 A	1.7 V @ 2 A	1.7 V @ 3 A
Reverse Recovery Time (trr)	30 ns	30 ns	30 ns	35 ns	75 ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	10 µA @ 600 V
Capacitance @ Vr, F	45 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz	15 pF @ 4V, 1MHz	50 pF @ 4V, 1MHz
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Packaging Configuration	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
Operating Temperature - Junction	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C	-65 to 175 °C	-55 to 150 °C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Qualification	Standard	Standard	AEC-Q101 Automotive	Standard	Standard

Engineering Selection Recommendations

USB260-M3/52T (Parametric Equivalent - Cut Tape Packaging)

This part is electrically identical to the USB260-M3/5BT with matching voltage, current, forward voltage, and reverse recovery time specifications. The primary difference is packaging configuration: Cut Tape (CT) versus Tape & Reel (TR). This substitute is suitable for applications where cut tape packaging meets procurement and assembly requirements. Both parts carry ROHS3 compliance and active product status.

USB260HM3/52T (Parametric Equivalent - Automotive Qualified)

This Vishay part maintains identical electrical specifications to the USB260-M3/5BT and is packaged in Tape & Reel configuration. The distinguishing feature is AEC-Q101 automotive qualification, which certifies the device for automotive-grade applications. This substitute is appropriate for designs requiring automotive-level reliability and traceability. Both parts are ROHS3 compliant and in active production.

ER2J-LTP (Manufacturer-Recommended Alternative - Micro Commercial Co)

This Micro Commercial Co diode meets the 600 V reverse voltage and 2 A current requirements with compatible DO-214AA packaging. Electrical parameters show minor variations: forward voltage of 1.7 V (versus 1.6 V), reverse recovery time of 35 ns (versus 30 ns), and lower capacitance of 15 pF (versus 45 pF). The operating temperature range extends to -65°C to 175°C, providing wider thermal coverage. ROHS3 compliance is maintained. This substitute is suitable for applications where the specified parameter variations are acceptable.

HS3JB (Manufacturer-Recommended Alternative - Taiwan Semiconductor Corporation)

This Taiwan Semiconductor diode provides 600 V reverse voltage with a higher 3 A current rating, exceeding the 2 A requirement of the USB260-M3/5BT. Forward voltage is 1.7 V at 3 A, reverse recovery time is 75 ns, and reverse leakage current is 10 µA. The higher current rating and extended specifications make this part suitable for applications requiring additional current margin or where the performance variations are compatible with circuit design. ROHS3 compliance is maintained.

Frequently Asked Questions (FAQ)

Q: Can USB260-M3/52T be used as a direct replacement for USB260-M3/5BT?

A: Yes. USB260-M3/52T is a parametric equivalent with identical electrical specifications. The only difference is packaging configuration: Cut Tape (CT) instead of Tape & Reel (TR). Compatibility depends on assembly equipment and procurement processes that support cut tape format.

Q: What is the significance of AEC-Q101 qualification on USB260HM3/52T?

A: AEC-Q101 is an automotive industry qualification standard that certifies component reliability for automotive applications. USB260HM3/52T carries this certification, making it suitable for automotive designs. The USB260-M3/5BT does not carry this qualification. Selection between these parts depends on application requirements.

Q: Why does ER2J-LTP have different electrical parameters than USB260-M3/5BT?

A: ER2J-LTP is manufactured by a different supplier (Micro Commercial Co) and exhibits minor parameter variations within the fast recovery diode category. Forward voltage is 1.7 V versus 1.6 V, reverse recovery time is 35 ns versus 30 ns, and capacitance is 15 pF versus 45 pF. These variations are typical across manufacturers for the same functional class. Substitution is valid when circuit design tolerates these differences.

Q: Is HS3JB a suitable substitute despite having 3 A rating instead of 2 A?

A: HS3JB meets the 600 V voltage requirement and exceeds the 2 A current requirement with a 3 A rating. Higher current rating provides design margin and does not create incompatibility. However, reverse recovery time is 75 ns (versus 30 ns) and reverse leakage is 10 µA (versus 5 µA). Substitution is valid when these parameter differences are compatible with circuit performance requirements.

Q: Do all substitute parts maintain the same DO-214AA package dimensions?

A: Yes. All listed substitute parts use the DO-214AA (SMB) package form factor, ensuring mechanical and thermal compatibility with the original USB260-M3/5BT design. Differences exist only in packaging configuration (Tape & Reel versus Cut Tape) and supplier qualification levels.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification, matching the environmental compliance status of the USB260-M3/5BT.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) packaging supplies components on tape segments cut to specific lengths, suitable for lower-volume or mixed-component assembly processes. Both formats use the same component and package; the difference is in delivery and handling configuration.

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