Equivalent & Substitute Parts for UFS310J/TR13

Part Overview

The Microchip Technology UFS310J/TR13 is a surface mount general-purpose fast recovery rectifier diode in the DO-214AB (SMC) package, rated for 100 V reverse voltage and 3A average rectified current. With a fast recovery time and low reverse leakage, it is suited for high frequency rectification and protection tasks in power conversion circuits. The active product status and specific compliance details make it important to identify substitute parts when supply, compliance, or design requirements change, particularly due to RoHS non-compliance for this part.

Key Parameters

Parameter	Value
Manufacturer Part Number	UFS310J/TR13
Category	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	100 V
Current - Average Rectified (Io)	3A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 3A
Reverse Recovery Time (trr)	30 ns
Current - Reverse Leakage @ Vr	10 µA @ 100 V
Mounting Type	Surface Mount
Package / Case	DO-214AB, SMC
Operating Temperature - Junction	-55°C ~ 175°C
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Approved substitute diodes in the DO-214AB (SMC) package must match or exceed the following criteria: maximum reverse voltage (100 V), average rectified current (3 A), surface mount compatibility, reverse leakage at rated voltage (≤10 µA @ 100 V), and suitable forward voltage at rated current. Reverse recovery time and product status (active or not for new design) are also considered. RoHS and REACH compliance status may determine suitability for environmentally regulated applications.

Substitution is strictly based on matching these electrical parameters and mechanical package specifications, ensuring direct compatibility in existing layouts and electrical designs.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Product Status	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Reverse Recovery Time (trr)	Current - Reverse Leakage @ Vr	Mounting Type	Package / Case	Operating Temperature - Junction	RoHS Status	Moisture Sensitivity Level (MSL)
UFS310J/TR13	Microchip Technology	Active	100 V	3A	950 mV @ 3A	30 ns	10 µA @ 100 V	Surface Mount	DO-214AB, SMC	-55°C ~ 175°C	RoHS non-compliant	1 (Unlimited)
ES3B	Taiwan Semiconductor Corporation	Active	100 V	3A	950 mV @ 3A	35 ns	10 µA @ 100 V	Surface Mount	DO-214AB, SMC	-55°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)
ES3B-13-F	Diodes Incorporated	Active	100 V	3A	900 mV @ 3A	25 ns	10 µA @ 100 V	Surface Mount	DO-214AB, SMC	-55°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)
S3B-13-F	Diodes Incorporated	Active	100 V	3A	1.15 V @ 3A	-	10 µA @ 100 V	Surface Mount	DO-214AB, SMC	-65°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)
S3B-TP	Micro Commercial Co	Not For New Designs	100 V	3A	1.2 V @ 3A	-	10 µA @ 100 V	Surface Mount	DO-214AB, SMC	-55°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)
S3BHE3_A/H	Vishay General Semiconductor - Diodes Division	Active	100 V	3A	1.15 V @ 2.5A	2.5 µs	10 µA @ 100 V	Surface Mount	DO-214AB, SMC	-55°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)

Engineering Selection Recommendations

Substitute parts ES3B, ES3B-13-F, S3B-13-F, S3B-TP, and S3BHE3_A/H all meet the key electrical and package criteria defined for UFS310J/TR13. RoHS status differs: UFS310J/TR13 is RoHS non-compliant, whereas all substitutes are ROHS3 compliant. Product status should be reviewed, as S3B-TP is marked "Not For New Designs." Active status, compliance, and environmental certifications must be matched to project requirements; qualification details, such as automotive grade, are available for S3BHE3_A/H.

Frequently Asked Questions (FAQ)

Q1: What are the primary electrical parameters to verify for substituting UFS310J/TR13?
A: Substitute diodes must match maximum reverse voltage (100V), average rectified current (3A), forward voltage rating, reverse leakage current at rated voltage, and recovery speed where required.

Q2: Is package compatibility guaranteed among substitutes?
A: Substitutes listed use the DO-214AB (SMC) surface mount package, matching the original device and ensuring compatibility for reflow soldering and PCB footprint.

Q3: How does RoHS or REACH compliance affect part selection?
A: All substitutes provided are ROHS3 compliant and REACH unaffected, while UFS310J/TR13 is RoHS non-compliant. RoHS compliance should be strictly considered for use in regulated environments.

Q4: Are there variations in reverse recovery time or forward voltage among substitutes?
A: Yes, reverse recovery time and forward voltage differ slightly among listed substitutes. These values should be matched according to circuit speed and efficiency requirements.

Q5: Why is product status important in selecting substitutes?
A: Only parts with "Active" product status are suitable for ongoing production. "Not For New Designs" status as in S3B-TP may restrict use to existing designs or repairs.

Q6: Can substitutes be used for automotive applications?
A: The S3BHE3_A/H is automotive qualified (AEC-Q101), distinguishing its use in automotive designs if such qualification is needed.

Q7: Do any of the substitutes require modification of PCB layout?
A: No substitutions listed require layout changes, as all share the DO-214AB (SMC) package and surface mount configuration.

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