BAT54-02V-V-G-08 Equivalent & Substitute Parts

Part Overview

The BAT54-02V-V-G-08 is a Schottky diode rated for 30 V DC reverse voltage and 200 mA average rectified current in a surface mount SOD-523 package. Manufactured by Vishay General Semiconductor - Diodes Division, this component is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability for new production and field replacements.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	200	mA
Voltage - Forward (Vf) (Max) @ If	800 mV @ 100 mA	mV @ mA
Reverse Recovery Time (trr)	5	ns
Current - Reverse Leakage @ Vr	2	µA @ 25 V
Capacitance @ Vr, F	10	pF @ 1V, 1MHz
Technology	Schottky	—
Package / Case	SC-79, SOD-523	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction (Max)	125	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BAT54-02V-V-G-08 is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 30 V minimum
Current - Average Rectified (Io): 200 mA minimum
Technology: Schottky
Package / Case: SC-79, SOD-523
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Secondary Compatibility Parameters:

Voltage - Forward (Vf) (Max) @ If: 800 mV @ 100 mA or lower
Reverse Recovery Time (trr): 5 ns or lower
Current - Reverse Leakage @ Vr: 2 µA @ 25 V or lower
Capacitance @ Vr, F: 10 pF @ 1V, 1MHz or lower
Operating Temperature - Junction: 125°C or higher
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into three categories based on their relationship to the main part specifications:

Direct Equivalents: Parts meeting all primary and secondary criteria with identical electrical performance.

Functional Equivalents: Parts meeting all primary criteria with minor variations in secondary parameters that do not affect circuit operation within the specified application envelope.

Upgraded Alternatives: Parts exceeding primary specifications (higher voltage or current ratings) that provide enhanced performance margin while maintaining backward compatibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) @ If [mV @ mA]	trr [ns]	Ir @ Vr [µA]	C @ Vr [pF]	Tj (Max) [°C]	Product Status	Packaging
BAT54-02V-V-G-08	Vishay General Semiconductor	30	200	800 @ 100	5	2 @ 25V	10 @ 1V, 1MHz	125	Obsolete	SOD-523
BAT54-02V-G3-08	Vishay General Semiconductor	30	200	800 @ 100	5	2 @ 25V	10 @ 1V, 1MHz	125	Active	Tape & Reel (TR)
BAT54WT-7	Diodes Incorporated	30	100	1000 @ 100	5	2 @ 25V	—	150	Active	Cut Tape (CT) & Digi-Reel®
BAT54WX-TP	Micro Commercial Co	30	200	800 @ 100	5	2 @ 25V	10 @ 1V, 1MHz	150	Active	Tape & Reel (TR)
1PS79SB10,115	Nexperia USA Inc.	30	200	800 @ 100	—	2 @ 25V	10 @ 1V, 1MHz	125	Active	Tape & Reel (TR)
1PS79SB31,115	Nexperia USA Inc.	30	200	500 @ 200	—	30 @ 10V	25 @ 1V, 1MHz	125	Active	Cut Tape (CT) & Digi-Reel®
1PS79SB31,135	Nexperia USA Inc.	30	200	500 @ 200	—	30 @ 10V	25 @ 1V, 1MHz	125	Active	Tape & Reel (TR)
1PS79SB31,315	Nexperia USA Inc.	30	200	500 @ 200	—	30 @ 10V	25 @ 1V, 1MHz	125	Active	Tape & Reel (TR)
BAT5402VH6327XTSA1	Infineon Technologies	30	200	800 @ 100	5	2 @ 25V	10 @ 1V, 1MHz	150	Active	Cut Tape (CT) & Digi-Reel®
BAT54KFILM	STMicroelectronics	40	300	900 @ 100	5	1 @ 30V	10 @ 1V, 1MHz	150	Active	Cut Tape (CT) & Digi-Reel®
BAT54XV2T1G	onsemi	30	200	800 @ 100	5	2 @ 25V	10 @ 1V, 1MHz	125	Active	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

Direct Equivalent Selection:

For applications requiring identical electrical and thermal performance to the BAT54-02V-V-G-08, the following parts are recommended:

BAT54-02V-G3-08 (Vishay General Semiconductor): Active product status with identical specifications. Available in Tape & Reel packaging. Recommended for high-volume production requiring consistent supplier continuity.
BAT54WX-TP (Micro Commercial Co): Active product status with identical electrical specifications. Extended operating temperature range (-65°C to 150°C) provides additional thermal margin. Available in Tape & Reel packaging.
1PS79SB10,115 (Nexperia USA Inc.): Active product status with identical electrical specifications. AEC-Q100 automotive qualification available. Recommended for automotive and mission-critical applications.
BAT5402VH6327XTSA1 (Infineon Technologies): Active product status with identical electrical specifications. Extended maximum junction temperature (150°C). Available in Cut Tape & Digi-Reel packaging.
BAT54XV2T1G (onsemi): Active product status with identical electrical specifications. Extended operating temperature range (-55°C to 125°C). Available in Cut Tape & Digi-Reel packaging.

Functional Equivalent Selection:

1PS79SB31,115, 1PS79SB31,135, 1PS79SB31,315 (Nexperia USA Inc.): Active product status. These parts meet voltage and current requirements but exhibit lower forward voltage (500 mV @ 200 mA) and higher reverse leakage (30 µA @ 10 V) compared to the main part. Suitable for applications where forward voltage reduction is beneficial and reverse leakage tolerance is acceptable.

Upgraded Alternative Selection:

BAT54KFILM (STMicroelectronics): Active product status with enhanced specifications. Rated for 40 V reverse voltage and 300 mA average rectified current, providing 33% higher voltage margin and 50% higher current capacity. Recommended for applications requiring performance headroom or where component consolidation across multiple voltage/current ratings is desired.

Current Availability Consideration:

BAT54WT-7 (Diodes Incorporated): Active product status. Rated for 100 mA average rectified current, which is below the 200 mA requirement of the main part. Not recommended as a direct substitute for 200 mA applications.

All recommended substitute parts are ROHS3 compliant, MSL 1 (Unlimited), and available in SOD-523 surface mount packages compatible with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can BAT54WT-7 be used as a substitute for BAT54-02V-V-G-08?

A: No. The BAT54WT-7 is rated for 100 mA average rectified current, while the BAT54-02V-V-G-08 is rated for 200 mA. Using a lower current-rated device in a 200 mA application will result in device overstress and potential failure.

Q: What is the difference between the 1PS79SB31 variants (1PS79SB31,115 / 1PS79SB31,135 / 1PS79SB31,315)?

A: All three variants share identical electrical specifications (30 V, 200 mA, 500 mV @ 200 mA forward voltage). The suffix designations indicate different packaging configurations and tape reel specifications. Selection depends on procurement and assembly requirements.

Q: Is BAT54KFILM a suitable substitute despite its 40 V rating?

A: Yes. The BAT54KFILM exceeds the primary substitution criteria with a 40 V reverse voltage rating (versus 30 V required) and 300 mA current rating (versus 200 mA required). This part provides enhanced performance margin and is backward compatible with applications designed for 30 V / 200 mA operation. The higher ratings do not degrade performance in lower-stress applications.

Q: Are all substitute parts available in the same SOD-523 package?

A: Yes. All substitute parts listed are available in SC-79 / SOD-523 surface mount packages, ensuring mechanical and electrical compatibility with existing PCB designs without layout modifications.

Q: What is the significance of the 1PS79SB10,115 AEC-Q100 qualification?

A: AEC-Q100 qualification indicates the part meets automotive industry reliability and quality standards. This qualification is relevant for automotive applications, industrial equipment, and mission-critical systems where enhanced reliability documentation is required.

Q: Can I use parts with different forward voltage specifications interchangeably?

A: Forward voltage differences affect circuit performance. The main part specifies 800 mV @ 100 mA, while 1PS79SB31 variants specify 500 mV @ 200 mA. Lower forward voltage reduces power dissipation and heat generation, which is beneficial in most applications. However, circuit designs with tight voltage margin specifications should be evaluated for compatibility.

Q: What packaging options are available for production versus prototyping?

A: Tape & Reel (TR) packaging is standard for high-volume production. Cut Tape (CT) & Digi-Reel® packaging is suitable for prototyping, low-volume production, and field service applications. Select packaging based on assembly process requirements and order quantities.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and meet environmental regulatory requirements for lead-free and restricted substance compliance.

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