BAT54W RVG Equivalent & Substitute Parts

Part Overview

The BAT54W RVG is a Schottky diode manufactured by Taiwan Semiconductor Corporation, rated for 30V DC reverse voltage and 200mA average rectified current in a surface mount SOT-323 package. This component is classified as a small signal Schottky rectifier diode with a 5 nanosecond reverse recovery time, suitable for high-speed switching applications.

The BAT54W RVG maintains Active product status with 633 units in current inventory. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility within the Schottky diode rectifier category. Substitute parts enable procurement flexibility when the primary part number becomes unavailable or when alternative manufacturers' components meet identical performance requirements.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	200	mA
Voltage - Forward (Vf) (Max) @ If	1	V @ 100 mA
Reverse Recovery Time (trr)	5	ns
Current - Reverse Leakage @ Vr	2	µA @ 25 V
Capacitance @ Vr, F	10	pF @ 1V, 1MHz
Package / Case	SC-70, SOT-323	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the BAT54W RVG are selected based on strict equivalence of the following critical parameters:

Primary Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 30V
Current - Average Rectified (Io): 200mA
Package / Case: SC-70, SOT-323
Technology: Schottky
Reverse Recovery Time (trr): 5 ns
Mounting Type: Surface Mount

Secondary Compatibility Parameters:

Voltage - Forward (Vf) (Max) @ If: 1V @ 100mA (or equivalent)
Current - Reverse Leakage @ Vr: 2µA @ 25V (or lower)
Capacitance @ Vr, F: 10pF @ 1V, 1MHz (or lower)
Operating Temperature Range: -55°C minimum, 125°C or higher maximum

Parts meeting all primary criteria and maintaining compatibility within secondary parameters are classified as direct substitutes. Parts with reduced current ratings (100mA vs. 200mA) or modified temperature ranges are identified as partial substitutes with specific application limitations.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	C @ Vr [pF]	Package	Tj (Min-Max) [°C]	RoHS Status	Product Status
BAT54W RVG	Taiwan Semiconductor	30	200	1 @ 100mA	5	2 @ 25V	10 @ 1V	SOT-323	-55 to 150	ROHS3	Active
BAT54W-7	Diodes Incorporated	30	200	1 @ 100mA	5	2 @ 25V	10 @ 1V	SOT-323	-65 to 125	Non-compliant	Discontinued
BAT54WT-TP	Micro Commercial Co	30	200	1 @ 100mA	5	2 @ 25V	10 @ 0V	SOT-323	-55 to 125	ROHS3	Active
BAT54WT1G	onsemi	30	200	0.8 @ 100mA	5	2 @ 25V	10 @ 1V	SOT-323	-55 to 125	ROHS3	Active
CMSSH-3 TR PBFREE	Central Semiconductor	30	100	1 @ 100mA	5	0.5 @ 25V	7 @ 1V	SOT-323	-65 to 150	ROHS3	Active
MMBD330T1G	onsemi	30	200	—	—	—	1.5 @ 15V	SOT-323	-55 to 125	ROHS3	Active
NSVBAT54WT1G	onsemi	30	200	0.8 @ 100mA	5	2 @ 25V	10 @ 1V	SOT-323	-55 to 125	ROHS3	Active
SMMBD330T1G	onsemi	30	200	—	—	—	1.5 @ 15V	SOT-323	-55 to 125	ROHS3	Active

Engineering Selection Recommendations

Full Electrical and Mechanical Equivalents (Direct Substitutes):

BAT54WT1G (onsemi) and NSVBAT54WT1G (onsemi) are direct substitutes for the BAT54W RVG. Both parts match all primary electrical parameters (30V, 200mA, 5ns reverse recovery time) and maintain SOT-323 packaging. Both are ROHS3 compliant and Active in product status. The NSVBAT54WT1G carries automotive-grade qualification. Forward voltage is specified at 0.8V @ 100mA, which is within acceptable tolerance of the 1V specification. Operating temperature range extends to -55°C to 125°C, providing adequate coverage for most applications within the BAT54W RVG's -55°C to 150°C range.

BAT54WT-TP (Micro Commercial Co) is functionally equivalent with identical electrical specifications and ROHS3 compliance. This part is supplied in Tape & Reel packaging format and maintains Active product status with 4300 units in inventory.

Partial Substitutes (Current Rating Limitation):

CMSSH-3 TR PBFREE (Central Semiconductor Corp) is rated for 100mA average rectified current, compared to the 200mA specification of the BAT54W RVG. This part is suitable only for applications where the circuit current requirement does not exceed 100mA. All other electrical parameters match: 30V reverse voltage, 5ns reverse recovery time, SOT-323 package, and ROHS3 compliance. Reverse leakage current is superior at 0.5µA @ 25V.

Avoid:

BAT54W-7 (Diodes Incorporated) is discontinued at DiGi Electronics and carries RoHS non-compliant status, making it unsuitable for new designs requiring compliance certification.

Alternative Topology (RF Diode Classification):

MMBD330T1G and SMMBD330T1G (both onsemi) are classified as RF Schottky diodes with identical 30V, 200mA ratings and SOT-323 packaging. These parts feature lower capacitance (1.5pF @ 15V vs. 10pF @ 1V) and are suitable for high-frequency applications. Complete electrical parameter alignment with the BAT54W RVG is confirmed for voltage and current ratings. These parts are ROHS3 compliant and Active in product status.

Frequently Asked Questions (FAQ)

Q: Can BAT54WT1G be used as a direct replacement for BAT54W RVG?

A: Yes. BAT54WT1G meets all primary electrical specifications: 30V reverse voltage, 200mA average rectified current, 5ns reverse recovery time, and SOT-323 package. Both parts are ROHS3 compliant and Active in product status. Forward voltage specification of 0.8V @ 100mA is within acceptable tolerance of the 1V specification.

Q: What is the difference between BAT54WT1G and NSVBAT54WT1G?

A: Both parts are electrically identical with matching 30V, 200mA, and 5ns specifications. NSVBAT54WT1G carries automotive-grade qualification. Selection between these parts depends on application requirements for automotive certification.

Q: Can CMSSH-3 TR PBFREE replace BAT54W RVG in all applications?

A: No. CMSSH-3 TR PBFREE is rated for 100mA average rectified current, while BAT54W RVG is rated for 200mA. This part is suitable only for circuits where the maximum current requirement does not exceed 100mA. All other electrical parameters are compatible.

Q: What is the difference between standard BAT54 diodes and RF diodes like MMBD330T1G?

A: MMBD330T1G and SMMBD330T1G are classified as RF Schottky diodes with lower capacitance (1.5pF @ 15V) compared to standard BAT54 variants (10pF @ 1V). Both maintain identical 30V, 200mA electrical ratings and SOT-323 packaging. RF diodes are optimized for high-frequency applications where lower capacitance reduces parasitic effects.

Q: Are all substitute parts ROHS3 compliant?

A: No. BAT54W-7 (Diodes Incorporated) is RoHS non-compliant and is discontinued. All other listed substitutes—BAT54WT-TP, BAT54WT1G, CMSSH-3 TR PBFREE, MMBD330T1G, NSVBAT54WT1G, and SMMBD330T1G—are ROHS3 compliant.

Q: What packaging formats are available for substitute parts?

A: BAT54W RVG is supplied in standard packaging. Substitute parts are available in Cut Tape (CT), Tape & Reel (TR), and Digi-Reel formats. BAT54WT-TP is supplied in Tape & Reel format with 4300 units in inventory. BAT54WT1G and NSVBAT54WT1G are available in Cut Tape & Digi-Reel format with 20100 and 50400 units respectively.

Q: Which substitute part has the highest inventory availability?

A: NSVBAT54WT1G (onsemi) has the highest inventory with 50400 units in stock, followed by BAT54WT1G (onsemi) with 20100 units and BAT54WT-TP (Micro Commercial Co) with 4300 units.

Q: Can MMBD330T1G or SMMBD330T1G be used in place of standard BAT54 diodes?

A: Yes, for applications where lower capacitance is beneficial or neutral. Both RF diodes maintain the same 30V, 200mA electrical specifications and SOT-323 package as the BAT54W RVG. The reduced capacitance (1.5pF @ 15V) makes these parts particularly suitable for high-frequency switching circuits.

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