ES3AB-13 Equivalent & Substitute Parts

Part Overview

The ES3AB-13 is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 50 V DC reverse voltage and 3 A average rectified current in a Surface Mount SMB (DO-214AA) package. This part is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing production and repair applications. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts satisfy the same functional requirements within acceptable parameter tolerances for this diode category.

Substiute Parts

ES3AB-13

Diodes IncorporatedIn Stock: 797ES3AB-13 Datasheet

Current PartRFQ

ES3AB-13-F

Diodes IncorporatedIn Stock: 19381ES3AB-13-F Datasheet

Parametric EquivalentRFQ

CGRB301-G

Comchip TechnologyIn Stock: 786CGRB301-G Datasheet

MFR RecommendedRFQ

S3AB-TP

Micro Commercial CoIn Stock: 1754S3AB-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ES3AB-13 is determined by the following critical parameters: reverse voltage rating (50 V minimum), average rectified current capacity (3 A minimum), surface mount package compatibility (DO-214AA/SMB), and operating temperature range (-55°C to 150°C minimum). Parts meeting or exceeding these specifications in all categories are classified as functional equivalents or acceptable substitutes.

The ES3AB-13-F represents a parametric equivalent with identical electrical characteristics and package form factor. The CGRB301-G and S3AB-TP are manufacturer-recommended substitutes that meet the core voltage and current requirements within the same package envelope, though with variations in forward voltage and recovery speed characteristics that remain within acceptable operating margins for general-purpose rectification applications.

Parameter Comparison

Engineering Selection Recommendations

ES3AB-13-F (Diodes Incorporated): This part is the primary equivalent substitute. It maintains identical electrical specifications to the ES3AB-13, including forward voltage, reverse recovery time, and reverse leakage current. The ES3AB-13-F carries Active product status and ROHS3 compliance, making it suitable for new designs and production applications. Packaging is available in Cut Tape and Digi-Reel formats with 19,310 units in stock.

CGRB301-G (Comchip Technology): This manufacturer-recommended substitute meets the core voltage and current requirements. Forward voltage is elevated to 1.1 V at 3 A compared to 900 mV for the ES3AB-13, resulting in increased power dissipation in high-current applications. The CGRB301-G exhibits lower reverse leakage (5 µA versus 10 µA) and carries ROHS3 compliance with Active product status. This part is suitable for applications where the higher forward voltage drop is acceptable.

S3AB-TP (Micro Commercial Co): This part is classified as Not For New Designs and carries the same voltage and current ratings as the ES3AB-13. Forward voltage is specified at 1.15 V at 3 A. While ROHS3 compliant, the Not For New Designs status indicates this part should be reserved for legacy system support or repair applications only. Inventory availability is 1,700 units.

Frequently Asked Questions (FAQ)

Q: Can ES3AB-13-F be used as a direct replacement for ES3AB-13?

A: Yes. The ES3AB-13-F is a parametric equivalent with identical voltage rating (50 V), current rating (3 A), forward voltage (900 mV @ 3 A), reverse recovery time (25 ns), and package form factor (DO-214AA/SMB). Both parts are manufactured by Diodes Incorporated and are pin-compatible in all surface mount applications.

Q: What is the impact of using CGRB301-G instead of ES3AB-13?

A: The CGRB301-G maintains the same 50 V reverse voltage and 3 A current ratings and uses the identical DO-214AA/SMB package. The primary difference is forward voltage: CGRB301-G is rated at 1.1 V @ 3 A versus 900 mV @ 3 A for the ES3AB-13. This 200 mV increase results in higher power dissipation and heat generation. Applications with thermal constraints or requiring minimal voltage drop should verify compatibility before substitution.

Q: Are all substitute parts RoHS compliant?

A: The ES3AB-13 is RoHS non-compliant. The ES3AB-13-F, CGRB301-G, and S3AB-TP are all ROHS3 compliant. If RoHS compliance is a design requirement, ES3AB-13-F is the recommended choice.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging is supplied in individual strips suitable for manual assembly or small-volume production. Tape & Reel (TR) packaging is supplied on continuous reels for automated pick-and-place assembly equipment. Both formats contain the same component; packaging selection depends on assembly process requirements.

Q: Should S3AB-TP be used for new designs?

A: No. S3AB-TP carries a Not For New Designs product status designation. This part should be used only for repair, maintenance, or legacy system support where the original part number must be matched. For new designs, ES3AB-13-F is the recommended primary choice.

Q: Are there temperature range differences between the substitute parts?

A: The ES3AB-13 and ES3AB-13-F specify operating junction temperature from -55°C to 150°C. The CGRB301-G specifies a maximum junction temperature of 150°C without a minimum value. The S3AB-TP does not specify an operating temperature range. For applications requiring the full -55°C to 150°C range, ES3AB-13-F is the appropriate selection.

Q: Can these parts be used interchangeably in existing PCB layouts?

A: Yes. All four parts use the DO-214AA/SMB surface mount package with identical pin configuration and footprint. No PCB layout modifications are required for substitution. Thermal design review is recommended when substituting with CGRB301-G or S3AB-TP due to higher forward voltage characteristics.