BA604-GS08 Equivalent & Substitute Parts

Part Overview

The BA604-GS08 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 50 V DC reverse voltage and 200 mA average rectified current in a surface mount SOD-80 MiniMELF package. This part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while supporting the same surface mount package format.

Key Parameters

Parameter	BA604-GS08 Specification
Voltage - DC Reverse (Vr) (Max)	50 V
Current - Average Rectified (Io)	200 mA
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 50 mA
Reverse Recovery Time (trr)	20 ns
Current - Reverse Leakage @ Vr	50 nA @ 20 V
Capacitance @ Vr, F	4 pF @ 0 V, 1 MHz
Operating Temperature - Junction	-65°C to 175°C
Package / Case	DO-213AC, MINI-MELF, SOD-80
Mounting Type	Surface Mount
Grade	Automotive
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the BA604-GS08 are selected based on the following critical electrical and mechanical parameters:

Mandatory Compatibility Criteria:

Voltage - DC Reverse (Vr) rating must equal or exceed 50 V
Package format must be SOD-80 MiniMELF (DO-213AC)
Mounting type must be surface mount
Operating temperature range must support the application thermal envelope
RoHS3 compliance and automotive-grade qualification preferred for continuity

Current Rating Consideration: Substitute parts may support equal or higher average rectified current (Io) ratings. The BA604-GS08 specifies 200 mA; substitutes rated at 200 mA or higher are electrically compatible for this parameter.

Speed and Recovery Characteristics: The BA604-GS08 is classified as small signal with reverse recovery time of 20 ns. Substitute parts with faster recovery characteristics (lower trr values) remain compatible and may offer improved performance in switching applications.

Forward Voltage: Forward voltage specifications vary among substitutes. Parts with lower Vf ratings reduce power dissipation and are functionally compatible.

Parameter Comparison

Parameter	BA604-GS08	CLL4150 TR PBFREE	PMLL4153,115
Manufacturer	Vishay General Semiconductor	Central Semiconductor Corp	Nexperia USA Inc.
Product Status	Obsolete	Active	Active
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V
Current - Average Rectified (Io)	200 mA	300 mA	200 mA
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 50 mA	1 V @ 200 mA	880 mV @ 50 mA
Reverse Recovery Time (trr)	20 ns	4 ns	4 ns
Current - Reverse Leakage @ Vr	50 nA @ 20 V	100 nA @ 50 V	50 nA @ 50 V
Capacitance @ Vr, F	4 pF @ 0 V, 1 MHz	4 pF @ 0 V, 1 MHz	2 pF @ 0 V, 1 MHz
Operating Temperature - Junction (Max)	175°C	200°C	200°C
Package / Case	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

CLL4150 TR PBFREE (Central Semiconductor Corp)

This substitute is active and available with 5,865 pieces in stock. It maintains the 50 V reverse voltage rating and SOD-80 MiniMELF package format. The CLL4150 TR PBFREE supports 300 mA average rectified current, exceeding the BA604-GS08 specification and providing design margin. Forward voltage is 1 V at 200 mA, which is lower than the original part. Reverse recovery time is 4 ns, significantly faster than the 20 ns specification of the BA604-GS08. Maximum junction temperature is 200°C, extending the thermal operating range. This part is ROHS3 compliant with MSL 1 rating. Selection of this substitute is appropriate for applications requiring higher current capacity or improved switching performance.

PMLL4153,115 (Nexperia USA Inc.)

This substitute is active and available with 11,029 pieces in stock. It maintains the 50 V reverse voltage rating, 200 mA average rectified current, and SOD-80 MiniMELF package format, providing direct electrical equivalence to the BA604-GS08. Forward voltage is 880 mV at 50 mA, lower than the original specification. Reverse recovery time is 4 ns, faster than the original 20 ns. Maximum junction temperature is 200°C. Capacitance is 2 pF, lower than the original 4 pF specification. This part is ROHS3 compliant with MSL 1 rating. Selection of this substitute is appropriate for direct replacement applications requiring identical current ratings with improved performance characteristics.

Both substitutes meet the mandatory compatibility criteria of 50 V reverse voltage rating, SOD-80 MiniMELF package format, surface mount configuration, and ROHS3 compliance. Both are manufactured by active suppliers with current production status and adequate inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the CLL4150 TR PBFREE be used as a direct replacement for the BA604-GS08?

A: Yes. Both parts share the same 50 V reverse voltage rating and SOD-80 MiniMELF package format. The CLL4150 TR PBFREE supports 300 mA average rectified current, which exceeds the 200 mA requirement of the BA604-GS08. The lower forward voltage (1 V at 200 mA versus 1.1 V at 50 mA) and faster recovery time (4 ns versus 20 ns) represent improved electrical characteristics. Thermal operating range extends to 200°C maximum junction temperature.

Q: Can the PMLL4153,115 be used as a direct replacement for the BA604-GS08?

A: Yes. The PMLL4153,115 maintains identical 50 V reverse voltage and 200 mA average rectified current ratings. Both parts use the SOD-80 MiniMELF package format. The PMLL4153,115 offers lower forward voltage (880 mV at 50 mA), faster recovery time (4 ns), and extended maximum junction temperature (200°C). Capacitance is reduced to 2 pF.

Q: Are both substitute parts available in the same packaging format as the BA604-GS08?

A: Yes. All three parts use the DO-213AC, MINI-MELF, SOD-80 package format and are configured for surface mount assembly. The CLL4150 TR PBFREE is supplied in Tape & Reel packaging, while the PMLL4153,115 is supplied in Tape & Reel packaging with MiniMelf designation.

Q: What is the difference in reverse leakage current between the original and substitute parts?

A: The BA604-GS08 specifies 50 nA at 20 V. The CLL4150 TR PBFREE specifies 100 nA at 50 V, representing higher leakage at a higher voltage reference. The PMLL4153,115 specifies 50 nA at 50 V, matching the original leakage specification at a higher voltage reference point.

Q: Do the substitute parts maintain automotive-grade qualification?

A: The provided specifications do not include automotive-grade or AEC-Q101 qualification data for the substitute parts. Verification of automotive qualification status should be obtained directly from the manufacturers if automotive-grade compliance is required for the application.

Q: What is the impact of faster reverse recovery time in the substitute parts?

A: The substitute parts feature 4 ns reverse recovery time compared to the original 20 ns specification. Faster recovery time reduces switching losses and improves efficiency in rectification circuits, particularly in high-frequency applications. This represents an improvement over the original part specification.

Q: Are all parts RoHS3 compliant?

A: Yes. The BA604-GS08, CLL4150 TR PBFREE, and PMLL4153,115 are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level rating.

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