CDBA260-G Schottky Diode 60V 2A Equivalent & Substitute Parts

Part Overview

The CDBA260-G is a Schottky rectifier diode manufactured by Comchip Technology, rated for 60V reverse voltage and 2A average rectified current in a surface mount DO-214AC (SMA) package. This part is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary for design continuity, inventory management, and ongoing production support for existing applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	60	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) Maximum @ If	700	mV @ 2A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	500	µA @ 60V
Mounting Type	Surface Mount	—
Package / Case	DO-214AC, SMA	—
Technology	Schottky	—
Operating Temperature - Junction Maximum	125	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the CDBA260-G is determined by strict electrical and mechanical compatibility criteria. All substitute parts must meet or exceed the following requirements:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) rating: minimum 60V
Current - Average Rectified (Io) rating: minimum 2A
Technology: Schottky
Package / Case: DO-214AC or SMA (mechanically compatible)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Secondary Compatibility Factors:

Forward voltage (Vf) at rated current
Reverse leakage current (Ir) at rated voltage
Operating temperature range
Product Status: Active preferred for new inventory availability

Substitution Categories:

Direct Equivalents (2A Rating): Parts with identical 2A current rating and 60V voltage rating maintain full electrical compatibility without circuit redesign.

Functional Substitutes (1A Rating): Parts rated for 1A average rectified current can substitute in applications where actual circuit current does not exceed 1A, despite the CDBA260-G's 2A rating. These require application-level current verification.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) mV @ If	Ir @ Vr µA	Package	Product Status	Temp Range °C
CDBA260-G	Comchip Technology	60	2	700 @ 2A	500 @ 60V	DO-214AC (SMA)	Not For New Designs	—55 to 125
CDBA260-HF	Comchip Technology	60	2	700 @ 2A	500 @ 60V	DO-214AC (SMA)	Active	−50 to 150
B260A-13-F	Diodes Incorporated	60	2	700 @ 2A	500 @ 60V	DO-214AC (SMA)	Active	−65 to 150
SS26S-E3/5AT	Vishay General Semiconductor	60	2	750 @ 2A	200 @ 60V	DO-214AC (SMA)	Active	−55 to 150
SS26S-E3/61T	Vishay General Semiconductor	60	2	750 @ 2A	200 @ 60V	DO-214AC (SMA)	Active	−55 to 150
STPS2L60AY	STMicroelectronics	60	2	600 @ 2A	100 @ 60V	DO-214AC (SMA)	Active	−40 to 150
MBRA160T3G	onsemi	60	1	510 @ 1A	200 @ 60V	DO-214AC (SMA)	Active	−55 to 150
STPS160A	STMicroelectronics	60	1	670 @ 1A	4 @ 60V	DO-214AC (SMA)	Active	—55 to 150
STPS160AY	STMicroelectronics	60	1	670 @ 1A	4 @ 60V	DO-214AC (SMA)	Active	−40 to 150
STPS1L60A	STMicroelectronics	60	1	570 @ 1A	50 @ 60V	DO-214AC (SMA)	Active	—55 to 150

Engineering Selection Recommendations

Tier 1 - Direct Equivalents (Recommended for CDBA260-G Replacement):

CDBA260-HF (Comchip Technology) is the primary direct equivalent. It maintains identical electrical specifications (60V, 2A, 700mV forward voltage) and is manufactured by the same supplier. Product Status is Active, ensuring ongoing availability. Operating temperature range extends to −50°C to 150°C, providing improved low-temperature performance compared to the original part.

B260A-13-F (Diodes Incorporated) provides full electrical equivalence with 60V, 2A, and 700mV forward voltage ratings. Active product status and extended operating temperature range (−65°C to 150°C) support long-term supply continuity. ROHS3 compliance and RoHS certification match the original part requirements.

STPS2L60AY (STMicroelectronics) is a 2A-rated Schottky diode with 60V reverse voltage. Forward voltage is 600mV @ 2A, which is lower than the CDBA260-G specification of 700mV, indicating improved efficiency characteristics. Automotive grade qualification (AEC-Q101) and Active product status support high-reliability applications. Operating temperature range −40°C to 150°C is suitable for industrial and automotive environments.

Tier 2 - Functional Substitutes (1A Current Rating):

MBRA160T3G (onsemi), STPS160A (STMicroelectronics), STPS160AY (STMicroelectronics), and STPS1L60A (STMicroelectronics) are rated for 1A average rectified current. These parts maintain 60V reverse voltage and DO-214AC (SMA) package compatibility. Substitution is valid only when circuit design analysis confirms that actual operating current does not exceed 1A. STPS160AY includes AEC-Q101 automotive qualification.

Tier 3 - Alternative Packaging Options:

SS26S-E3/5AT and SS26S-E3/61T (Vishay General Semiconductor) both provide 60V, 2A ratings with DO-214AC (SMA) package compatibility. Forward voltage is 750mV @ 2A, which is 50mV higher than the CDBA260-G. Reverse leakage is 200µA @ 60V, lower than the original 500µA specification. These parts are suitable for applications where lower leakage current is beneficial.

Compliance and Certification:

All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the original part's regulatory status. Moisture Sensitivity Level (MSL) is 1 (Unlimited) across all parts, indicating no special moisture handling requirements during storage or assembly.

Frequently Asked Questions (FAQ)

Q1: Can CDBA260-HF be used as a direct replacement for CDBA260-G without circuit modification?

A: Yes. CDBA260-HF is manufactured by Comchip Technology with identical electrical specifications: 60V reverse voltage, 2A average rectified current, and 700mV forward voltage @ 2A. Both parts use the DO-214AC (SMA) package. The primary difference is product status (Active vs. Not For New Designs) and extended operating temperature range (−50°C to 150°C vs. −55°C to 125°C). No circuit redesign is required.

Q2: What is the difference between direct equivalents and functional substitutes?

A: Direct equivalents (CDBA260-HF, B260A-13-F, STPS2L60AY, SS26S-E3/5AT, SS26S-E3/61T) maintain the 2A current rating of the CDBA260-G. Functional substitutes (MBRA160T3G, STPS160A, STPS160AY, STPS1L60A) are rated for 1A current. Functional substitutes require verification that actual circuit current does not exceed 1A before implementation.

Q3: Why do some substitute parts have lower forward voltage specifications?

A: Forward voltage variation is a normal characteristic of Schottky diodes from different manufacturers and process technologies. STPS2L60AY specifies 600mV @ 2A compared to CDBA260-G's 700mV @ 2A. Lower forward voltage indicates improved efficiency and reduced power dissipation. This is a beneficial characteristic in most applications. Verify that circuit design does not depend on specific forward voltage values before substitution.

Q4: Are all substitute parts suitable for automotive applications?

A: STPS160AY and STPS2L60AY carry AEC-Q101 automotive qualification. Other parts are industrial-grade components. Automotive applications requiring AEC-Q101 certification should use STPS160AY (1A) or STPS2L60AY (2A). Non-automotive applications can use any listed substitute part.

Q5: What is the significance of operating temperature range differences?

A: The CDBA260-G specifies maximum junction temperature of 125°C without a minimum temperature range. Substitute parts specify full operating ranges (e.g., −50°C to 150°C for CDBA260-HF). Extended temperature ranges provide design margin for extreme environmental conditions. For standard industrial applications (−40°C to 85°C ambient), all substitute parts are suitable.

Q6: Can I use SS26S-E3/5AT and SS26S-E3/61T interchangeably?

A: Both parts have identical electrical specifications (60V, 2A, 750mV forward voltage). The difference is packaging format: SS26S-E3/5AT is supplied in Tape & Reel (TR), while SS26S-E3/61T is supplied in Cut Tape (CT). Selection depends on assembly equipment compatibility and inventory management requirements. Electrical performance is identical.

Q7: What does "Not For New Designs" status mean for CDBA260-G?

A: "Not For New Designs" indicates the part has reached end-of-life and is no longer recommended for new product development. Existing inventory may be available, but long-term supply is not guaranteed. For new designs or production continuity, select an Active-status substitute part such as CDBA260-HF, B260A-13-F, or STPS2L60AY.

Q8: How do I verify that a 1A-rated substitute is suitable for my application?

A: Review circuit schematic and operating conditions to determine maximum forward current through the diode. Measure or calculate peak and average current under worst-case conditions (maximum input voltage, minimum load resistance). If maximum average current does not exceed 1A, a 1A-rated substitute (MBRA160T3G, STPS160A, STPS160AY, STPS1L60A) is acceptable. If average current exceeds 1A, use a 2A-rated substitute.

Q9: Are there any package compatibility issues between DO-214AC and SMA designations?

A: DO-214AC and SMA are equivalent package designations for the same physical form factor. All listed substitute parts use this package and are mechanically compatible with CDBA260-G PCB footprints. No layout or assembly modifications are required.

Q10: Which substitute part offers the best overall performance improvement?

A: STPS2L60AY provides the most significant performance improvement: 600mV forward voltage (vs. 700mV), lower reverse leakage (100µA vs. 500µA), Active product status, AEC-Q101 automotive qualification, and extended operating temperature range (−40°C to 150°C). These characteristics result in lower power dissipation, improved reliability, and better long-term supply availability.

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