BASH21LT1G Equivalent & Substitute Parts

Part Overview

The BASH21LT1G is a general-purpose rectifier diode manufactured by onsemi, rated for 250 V DC reverse voltage and 200 mA average rectified current in a surface mount SOT-23-3 package. This component is classified as Active product status and complies with RoHS3 and REACH regulations. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or specific application requirements such as automotive qualification.

Substiute Parts

BASH21LT1G

onsemiIn Stock: 895BASH21LT1G Datasheet

Current PartRFQ

NSVBASH21LT1G

onsemiIn Stock: 16001NSVBASH21LT1G Datasheet

Parametric EquivalentRFQ

BAS21-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 24528BAS21-E3-08 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BASH21LT1G are identified based on strict electrical and mechanical parameter matching within the allowed tolerance ranges for general-purpose rectifier diodes. The substitution logic is organized into two categories:

Parametric Equivalent (Full Compatibility): Parts that match all critical electrical parameters including reverse voltage rating, average rectified current, forward voltage drop, reverse recovery time, reverse leakage current, and capacitance. These parts maintain identical performance characteristics and package specifications.

Similar Parts (Application-Dependent Compatibility): Parts that match the majority of electrical parameters but may differ in specific ratings such as maximum reverse voltage or operating temperature range. These parts require verification that the application does not exceed the lower parameter limits.

Key parameters determining substitution eligibility:

• Voltage - DC Reverse (Vr) (Max): 250 V or higher
• Current - Average Rectified (Io): 200 mA
• Voltage - Forward (Vf) (Max) @ If: 1.25 V @ 200 mA
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount
• Reverse Recovery Time (trr): 50 ns
• Current - Reverse Leakage @ Vr: 100 nA @ 200 V
• Capacitance @ Vr, F: 5 pF @ 0V, 1MHz

Parameter Comparison

Engineering Selection Recommendations

NSVBASH21LT1G (onsemi) - Parametric Equivalent:

The NSVBASH21LT1G is a direct parametric equivalent to the BASH21LT1G with identical electrical specifications across all measured parameters. This part carries automotive-grade qualification (AEC-Q101) and is designated for automotive applications. Selection of this substitute is appropriate when automotive compliance is required or when supply of the standard BASH21LT1G is constrained. Both parts maintain Active product status and full RoHS3 and REACH compliance. The NSVBASH21LT1G is available in higher inventory volume (15,953 pcs) compared to the BASH21LT1G (818 pcs).

BAS21-E3-08 (Vishay General Semiconductor - Diodes Division) - Similar Part:

The BAS21-E3-08 is a similar general-purpose rectifier diode from Vishay that matches the BASH21LT1G in current rating, forward voltage, reverse recovery time, reverse leakage current, and capacitance. The maximum reverse voltage rating is 200 V, which is 50 V lower than the BASH21LT1G. The operating temperature range extends to 150°C maximum junction temperature, compared to 175°C for the BASH21LT1G. This part is suitable for applications where the circuit design does not require the full 250 V reverse voltage rating or the extended upper temperature range. The BAS21-E3-08 is available in higher inventory volume (24,514 pcs) and is packaged in Cut Tape (CT) & Digi-Reel® format. All regulatory compliance requirements (RoHS3, REACH) are met.

Frequently Asked Questions (FAQ)

Q: Can NSVBASH21LT1G be used as a direct replacement for BASH21LT1G?

A: Yes. The NSVBASH21LT1G is a parametric equivalent with identical electrical and mechanical specifications. The primary difference is automotive-grade qualification (AEC-Q101). Both parts are manufactured by onsemi, use the same SOT-23-3 package, and maintain identical performance across all measured parameters including voltage, current, forward drop, and temperature range.

Q: What is the key difference between BASH21LT1G and BAS21-E3-08?

A: The BAS21-E3-08 has a maximum reverse voltage rating of 200 V compared to 250 V for the BASH21LT1G, and a maximum operating junction temperature of 150°C versus 175°C. All other electrical parameters are identical. The BAS21-E3-08 is manufactured by Vishay and is packaged in Cut Tape (CT) & Digi-Reel® format rather than Tape & Reel (TR).

Q: Can BAS21-E3-08 be used in place of BASH21LT1G in all applications?

A: The BAS21-E3-08 is suitable only for applications where the circuit design does not exceed 200 V reverse voltage and does not require operation above 150°C junction temperature. If the application requires the full 250 V reverse voltage rating or extended temperature operation to 175°C, the BAS21-E3-08 is not appropriate.

Q: Are all three parts RoHS3 and REACH compliant?

A: Yes. BASH21LT1G, NSVBASH21LT1G, and BAS21-E3-08 are all ROHS3 Compliant and REACH Unaffected. All parts carry Moisture Sensitivity Level (MSL) 1 (Unlimited).

Q: What is the difference in packaging between the substitute parts?

A: BASH21LT1G and NSVBASH21LT1G are supplied in Tape & Reel (TR) packaging. BAS21-E3-08 is supplied in Cut Tape (CT) & Digi-Reel® packaging. All three parts use the same SOT-23-3 (TO-236-3, SC-59) surface mount package for the component itself.

Q: Which substitute part has the highest inventory availability?

A: BAS21-E3-08 has the highest inventory with 24,514 pcs in stock, followed by NSVBASH21LT1G with 15,953 pcs, and BASH21LT1G with 818 pcs.

Q: Are there any temperature-related limitations when substituting parts?

A: Yes. The BAS21-E3-08 has a maximum junction temperature of 150°C, while BASH21LT1G and NSVBASH21LT1G both support -55°C to 175°C. Applications requiring operation above 150°C must use BASH21LT1G or NSVBASH21LT1G.