UFS340J/TR13 Equivalent & Substitute Parts Reference

Part Overview

The UFS340J/TR13 from Microchip Technology is a general-purpose rectifier diode categorized under Diodes, Rectifiers. It offers 400 V reverse voltage and 3 A average rectified current, optimized for surface mount applications in a DO-214AB (SMC) package. The device features fast recovery performance suitable for circuits requiring quick switching. The current active status enables continued use; however, substitution may be necessary for RoHS compliance, procurement flexibility, or stocking policies, as the UFS340J/TR13 is RoHS non-compliant.

Key Parameters

Parameter	Value
Category	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	400 V
Current - Average Rectified (Io)	3A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 3 A
Speed	Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	50 ns
Current - Reverse Leakage @ Vr	10 µA @ 400 V
Mounting Type	Surface Mount
Package / Case	DO-214AB, SMC
Operating Temperature - Junction	-55°C ~ 175°C
RoHS Status	RoHS non-compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution is determined by direct equivalence of electrical, mechanical, and regulatory parameters. For the UFS340J/TR13, the following parameters govern legitimate interchangeability: category (rectifier diodes), reverse voltage rating (400 V), average rectified current rating (3A), forward voltage at rated current, recovery speed classification, reverse leakage current, package type (DO-214AB/SMC), mounting type, and RoHS/status. Substitute parts must match or exceed these criteria without introducing any deviations from the defined field values.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ 3A	Speed	Reverse Recovery (trr)	Reverse Leakage @ Vr	Mounting Type	Package / Case	Operating Temp (Junction)	RoHS Status	Product Status
UFS340J/TR13	Microchip Technology	400 V	3A	1.1 V	Fast Recovery ≤500ns	50 ns	10 µA	Surface Mount	DO-214AB, SMC	-55°C ~ 175°C	RoHS non-compliant	Active
ER3G-TP	Micro Commercial Co	400 V	3A	1.25 V	Fast Recovery ≤500ns	35 ns	5 µA	Surface Mount	DO-214AB, SMC	-50°C ~ 175°C	ROHS3 Compliant	Active
S3G-13-F	Diodes Incorporated	400 V	3A	1.15 V	Standard Recovery >500ns	-	10 µA	Surface Mount	DO-214AB, SMC	-65°C ~ 150°C	ROHS3 Compliant	Active
S3G-TP	Micro Commercial Co	400 V	3A	1.2 V	Standard Recovery >500ns	-	10 µA	Surface Mount	DO-214AB, SMC	-55°C ~ 150°C	ROHS3 Compliant	Not For New Designs
STTH3R04S	STMicroelectronics	400 V	3A	1.5 V	Fast Recovery ≤500ns	35 ns	5 µA	Surface Mount	DO-214AB, SMC	175°C (Max)	ROHS3 Compliant	Active

Engineering Selection Recommendations

Substitute selection can be guided by RoHS compliance requirements. UFS340J/TR13 is RoHS non-compliant; all substitutes listed are ROHS3 compliant, which allows use in applications requiring RoHS conformity. For active, long-term sourcing, select substitutes with 'Active' status rather than those marked 'Not For New Designs'. All listed substitutes are suitable for surface mount applications using the DO-214AB (SMC) package, maintaining mechanical compatibility. Product status and compliance should be cross-checked with application requirements.

Frequently Asked Questions (FAQ)

Q: What key electrical parameters must be matched when substituting UFS340J/TR13?
A: Reverse voltage (400 V), average rectified current (3A), and package (DO-214AB, SMC) must match. Recovery speed and reverse leakage current should be reviewed according to application tolerance.

Q: Are substitute parts functionally identical to UFS340J/TR13?
A: Substitute parts meet or exceed the main electrical and mechanical parameters as specified, including voltage, current, package, and diode category.

Q: Does the package type affect substitution?
A: Yes, all substitutes must use the DO-214AB (SMC) surface mount package to ensure footprint and assembly compatibility.

Q: What is the impact of RoHS compliance in substitute selection?
A: If the application or market requires RoHS compliance, use one of the ROHS3 compliant substitutes instead of the UFS340J/TR13, which is RoHS non-compliant.

Q: How should differences in reverse recovery time or forward voltage be considered?
A: Only parameters explicitly listed are considered. Substitute devices with recovery times and forward voltages within the provided range are valid options for substitution according to given criteria.

Q: Can a 'Not For New Designs' part be used as a substitute?
A: For ongoing or future designs, parts with 'Active' status should be used. 'Not For New Designs' status is not recommended for new projects based on the provided selection logic.

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