Equivalent & Substitute Parts for ACDBA260LR-HF

Part Overview

The ACDBA260LR-HF is a Schottky rectifier diode manufactured by Comchip Technology, rated for 60V DC reverse voltage and 2A average rectified current in a DO-214AC (SMA) surface mount package. This component is classified as Active product status with AEC-Q101 automotive qualification and ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, inventory availability, or design flexibility within specified parameter tolerances.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	60	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 2 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	500 µA @ 60 V	µA
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-50°C ~ 150°C	°C
RoHS Status	ROHS3 Compliant	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitution eligibility for the ACDBA260LR-HF is determined by the following criteria:

Primary Substitution Parameters:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 60V
Package / Case: Must be DO-214AC (SMA) for mechanical and thermal compatibility
Mounting Type: Must be Surface Mount
Technology: Must be Schottky for functional equivalence

Secondary Substitution Parameters:

Current - Average Rectified (Io): Must support the application requirement; equal or greater rating is acceptable
Voltage - Forward (Vf) (Max): Variation within application tolerance is acceptable
Speed: Must maintain Fast Recovery classification
RoHS Status: Must be ROHS3 Compliant
Operating Temperature Range: Must encompass or exceed the application operating window

The identified substitute parts meet all primary criteria and maintain compatibility with the electrical and mechanical specifications of the ACDBA260LR-HF.

Parameter Comparison

Parameter	ACDBA260LR-HF (Comchip)	SS26S-M3/61T (Vishay)	SS16-E3/5AT (Vishay)
Manufacturer	Comchip Technology	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Technology	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	60 V	60 V	60 V
Current - Average Rectified (Io)	2 A	2 A	1 A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 2 A	700 mV @ 2 A	750 mV @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 60 V	400 µA @ 60 V	200 µA @ 60 V
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-50°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

SS26S-M3/61T (Vishay) - Primary Equivalent:

The SS26S-M3/61T is a direct functional equivalent to the ACDBA260LR-HF. Both devices share identical voltage and current ratings (60V, 2A), identical package configuration (DO-214AC, SMA), and identical speed classification (Fast Recovery ≤ 500ns). The SS26S-M3/61T exhibits lower forward voltage (700 mV vs. 550 mV @ 2A) and lower reverse leakage current (400 µA vs. 500 µA @ 60V), representing improved performance characteristics. Both parts maintain Active product status, ROHS3 compliance, and automotive-grade qualification. The extended operating temperature range of the SS26S-M3/61T (-65°C to 150°C vs. -50°C to 150°C) provides additional thermal margin. This substitute is suitable for direct replacement in applications where the ACDBA260LR-HF is specified.

SS16-E3/5AT (Vishay) - Current-Limited Substitute:

The SS16-E3/5AT is a Schottky rectifier rated for 60V DC reverse voltage with 1A average rectified current. This device shares identical voltage rating, package configuration, and speed classification with the ACDBA260LR-HF but is rated for half the current capacity (1A vs. 2A). The SS16-E3/5AT is suitable only for applications where the circuit current requirement does not exceed 1A. Both parts maintain Active product status and ROHS3 compliance. The extended operating temperature range (-65°C to 150°C) provides additional thermal margin. Selection of this substitute requires confirmation that application current demand is within the 1A rating.

Frequently Asked Questions (FAQ)

Q: Can SS26S-M3/61T replace ACDBA260LR-HF in all applications?

A: Yes. The SS26S-M3/61T meets or exceeds all primary substitution parameters: identical 60V reverse voltage rating, identical 2A current rating, identical DO-214AC (SMA) package, identical Fast Recovery speed classification, and identical ROHS3 compliance. The substitute exhibits improved electrical characteristics (lower forward voltage and reverse leakage). No design modification is required.

Q: Under what conditions can SS16-E3/5AT be used as a substitute?

A: The SS16-E3/5AT can be used only when the application circuit current requirement does not exceed 1A. This device is rated for 1A average rectified current, compared to the 2A rating of the ACDBA260LR-HF. All other electrical parameters (60V reverse voltage, DO-214AC package, Fast Recovery speed) are equivalent. Circuit analysis must confirm that peak and average current demands remain within the 1A limit.

Q: Are there package compatibility concerns with these substitutes?

A: No. All three devices use the DO-214AC (SMA) surface mount package. PCB footprints, solder pad dimensions, and thermal characteristics are identical. No PCB redesign or rework is required for substitution.

Q: Do the substitute parts meet automotive qualification requirements?

A: The SS26S-M3/61T and SS16-E3/5AT are manufactured by Vishay General Semiconductor - Diodes Division and maintain Active product status with ROHS3 compliance. The ACDBA260LR-HF carries AEC-Q101 automotive qualification. Automotive qualification status of the Vishay substitutes is not specified in the provided parameters. Applications requiring explicit AEC-Q101 certification must confirm qualification status with the manufacturer.

Q: What is the impact of forward voltage differences between these parts?

A: The ACDBA260LR-HF specifies 550 mV forward voltage at 2A, while SS26S-M3/61T specifies 700 mV at 2A. This 150 mV difference results in increased power dissipation in the substitute part. For applications with tight thermal budgets or high-frequency switching, thermal analysis is required to confirm that junction temperature remains within the -50°C to 150°C operating range. The SS16-E3/5AT specifies 750 mV at 1A, which is not directly comparable due to the different current rating.

Q: What is the significance of reverse leakage current differences?

A: The ACDBA260LR-HF specifies 500 µA reverse leakage at 60V, while SS26S-M3/61T specifies 400 µA and SS16-E3/5AT specifies 200 µA. Lower reverse leakage represents improved performance and reduced standby power consumption. Applications sensitive to leakage current will benefit from the substitute parts. No design modification is required; the substitutes represent equivalent or superior performance.

Q: Are moisture sensitivity levels equivalent across all three parts?

A: Yes. All three devices are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Storage, handling, and reflow processes are identical for all three parts.

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