ABAV23S-HF Equivalent & Substitute Parts

Part Overview

The ABAV23S-HF is a general-purpose diode array manufactured by Comchip Technology, configured as a 1 Pair Series Connection rated for 250 V DC reverse voltage and 225 mA average rectified current per diode. The device is housed in a Surface Mount TO-236-3 (SOT-23-3) package and is classified as an Active product with Automotive grade qualification per AEC-Q101 standard.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within the same functional category.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Series Connection
Voltage - DC Reverse (Vr) (Max)	250 V
Current - Average Rectified (Io) (per Diode)	225 mA (DC)
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 200 mA
Speed Classification	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Reverse Recovery Time (trr)	50 ns
Current - Reverse Leakage @ Vr	100 nA @ 200 V
Operating Temperature - Junction	-55°C ~ 150°C
Package / Case	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the ABAV23S-HF is determined by strict equivalence across the following critical parameters:

Diode Configuration: Must be 1 Pair Series Connection
Voltage Rating: DC Reverse voltage must be 250 V (maximum)
Current Rating: Average Rectified Current must be 225 mA (DC) per diode
Forward Voltage: Maximum forward voltage must be 1.25 V @ 200 mA
Recovery Characteristics: Fast Recovery classification ≤ 500 ns with reverse recovery time of 50 ns
Reverse Leakage: Maximum 100 nA @ 200 V
Temperature Range: Operating junction temperature -55°C ~ 150°C
Package: Surface Mount TO-236-3 / SOT-23-3 form factor
Compliance: ROHS3 Compliant with MSL 1 rating

The substitute part BAS21SLT1G meets all specified electrical and mechanical parameters and is therefore classified as a parametric equivalent.

Parameter Comparison

Parameter	ABAV23S-HF (Comchip)	BAS21SLT1G (onsemi)	Match Status
Diode Configuration	1 Pair Series Connection	1 Pair Series Connection	Equivalent
Voltage - DC Reverse (Vr) (Max)	250 V	250 V	Equivalent
Current - Average Rectified (Io) (per Diode)	225 mA (DC)	225 mA (DC)	Equivalent
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 200 mA	1.25 V @ 200 mA	Equivalent
Speed Classification	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Equivalent
Reverse Recovery Time (trr)	50 ns	50 ns	Equivalent
Current - Reverse Leakage @ Vr	100 nA @ 200 V	100 nA @ 200 V	Equivalent
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	Equivalent
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent

Engineering Selection Recommendations

The BAS21SLT1G manufactured by onsemi is a direct parametric equivalent to the ABAV23S-HF. Both devices are Active products with identical electrical specifications, thermal operating ranges, and package configurations. Both meet ROHS3 compliance requirements and carry MSL 1 ratings, indicating no moisture sensitivity constraints during storage and handling.

Selection between these two parts is based on availability, supply chain logistics, and packaging format preference. The ABAV23S-HF is supplied in Tape & Reel (TR) format, while the BAS21SLT1G is available in Cut Tape (CT) and Digi-Reel® formats. Both formats are suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can BAS21SLT1G be used as a direct replacement for ABAV23S-HF in production?

A: Yes. The BAS21SLT1G meets all electrical and mechanical specifications of the ABAV23S-HF, including voltage rating, current capacity, recovery time, leakage characteristics, temperature range, and package form factor. Both devices are ROHS3 compliant with identical MSL ratings.

Q: Are there differences in packaging between these parts?

A: The ABAV23S-HF is supplied in Tape & Reel (TR) format, while the BAS21SLT1G is available in Cut Tape (CT) and Digi-Reel® formats. Both are Surface Mount SOT-23-3 packages suitable for automated pick-and-place assembly. Packaging format selection depends on production volume and equipment compatibility.

Q: Do both parts have the same thermal performance?

A: Yes. Both the ABAV23S-HF and BAS21SLT1G operate across the identical junction temperature range of -55°C to 150°C with equivalent reverse recovery time of 50 ns and identical forward voltage characteristics.

Q: What is the significance of the 1 Pair Series Connection configuration?

A: The 1 Pair Series Connection indicates the diode array contains two diodes connected in series within a single package. This configuration is maintained identically in both the ABAV23S-HF and BAS21SLT1G, ensuring functional equivalence in circuit applications.

Q: Are there any compliance or certification differences?

A: The ABAV23S-HF carries Automotive grade qualification per AEC-Q101 standard. The BAS21SLT1G specifications provided do not include explicit AEC-Q101 notation in the input data. Verification of automotive qualification status for the BAS21SLT1G should be confirmed through the manufacturer's datasheet if automotive application requirements are mandatory.

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