RF051VA1STR Equivalent & Substitute Parts Reference

Part Overview

RF051VA1STR is a surface mount general-purpose diode from Rohm Semiconductor, classified under Diodes, Rectifiers. It supports 100 V DC reverse voltage and up to 500mA average rectified current, offered in the TUMD2 package. The part is active and compliant with ROHS3 and REACH standards. Alternative models are required for supply chain flexibility, package compatibility, and application-specific certifications, while maintaining electrical and mechanical equivalence.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	100 V
Current - Average Rectified (Io)	500mA
Voltage - Forward (Vf) (Max) @ If	980 mV @ 500 mA
Reverse Recovery Time (trr)	25 ns
Current - Reverse Leakage @ Vr	10 µA @ 100 V
Speed	Fast Recovery =< 500ns, > 200mA (Io)
Mounting Type	Surface Mount
Package / Case	2-SMD, Flat Lead
Operating Temperature - Junction	150°C (Max)
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts are selected strictly based on parametric equivalence in the following key parameters: maximum DC reverse voltage (Vr), average rectified current (Io), maximum forward voltage (Vf) at specified current, reverse recovery time (trr), reverse leakage current at max voltage, speed specification, mounting type, package/case, and operating temperature rating. Compliance (ROHS3, REACH) and product status (Active) are required for all substitutes.

Parameter Comparison

Parameter	RF051VA1STR (Main)	RF05VAM1STR (Parametric Eq.)	RF05VYM1SFHTR (Parametric Eq.)	ES07B-GS08 (Similar)
Manufacturer	Rohm Semiconductor	Rohm Semiconductor	Rohm Semiconductor	Vishay General Semiconductor
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	500mA	500mA	500mA	500mA
Voltage - Forward (Vf) (Max) @ If	980 mV @ 500 mA	980 mV @ 500 mA	980 mV @ 500 mA	980 mV @ 1 A
Reverse Recovery Time (trr)	25 ns	25 ns	25 ns	25 ns
Current - Reverse Leakage @ Vr	10 µA @ 100 V	10 µA @ 100 V	10 µA @ 100 V	10 µA @ 100 V
Speed	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	2-SMD, Flat Lead	2-SMD, Flat Lead	2-SMD, Flat Lead	DO-219AB
Operating Temperature - Junction	150°C (Max)	150°C (Max)	150°C (Max)	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

RF05VAM1STR and RF05VYM1SFHTR are parametric equivalents to RF051VA1STR with matched electrical and mechanical specifications, product status, and compliance. ES07B-GS08 is a similar part with all specified parameters provided. All listed substitutes are ROHS3 compliant, REACH unaffected, and are currently active.

Frequently Asked Questions (FAQ)

Q1: How are substitute parts selected for RF051VA1STR?
Parts are selected strictly by matching voltage rating, current rating, forward voltage, reverse recovery time, reverse leakage, speed, mounting type, package, operating temperature, and compliance status.

Q2: Does package type affect substitution?
Yes. Substitution requires the mechanical package (case and mounting type) to match or be compatible with design requirements.

Q3: Are certification and product status considered?
Only parts with ROHS3 compliance, REACH unaffected status, and active product status are considered for direct substitution.

Q4: What if the substitute part has a different supplier device package?
Package variations must be evaluated for form factor compatibility with the PCB footprint and assembly process, strictly based on supplied package information.

Q5: Is automotive qualification important for substitution?
Automotive qualification (such as AEC-Q101) is noted where provided, which may be relevant for automotive-specific applications. Only listed qualification statuses are used in substitution criteria.

Q6: Can parts with unspecified parameters be considered equivalent?
Only parameters explicitly provided are used. Unlisted or inferred parameters are not considered for substitution.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message