ES3B-13 Equivalent & Substitute Parts

Part Overview

The ES3B-13 is a general-purpose rectifier diode rated for 100 V DC reverse voltage and 3 A average rectified current in a surface mount SMC (DO-214AB) package. This component is classified as discontinued at DiGi Electronics, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement.

The ES3B-13 employs fast recovery technology with a reverse recovery time of 25 ns, making it suitable for applications requiring rapid switching characteristics. The part is RoHS non-compliant and carries an unlimited moisture sensitivity level (MSL 1).

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	900 mV @ 3 A	mV
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	25	ns
Current - Reverse Leakage @ Vr	10	µA @ 100 V
Capacitance @ Vr, F	45	pF @ 4V, 1MHz
Mounting Type	Surface Mount	—
Package / Case	DO-214AB, SMC	—
Operating Temperature - Junction	-55 to 150	°C

Substitute Part Grouping Explanation

Substitution of the ES3B-13 is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io): 3 A minimum
Mounting Type: Surface Mount
Package / Case: DO-214AB, SMC

Performance Characteristics:

Speed classification (Fast Recovery vs. Standard Recovery)
Reverse Recovery Time (trr)
Forward Voltage (Vf) at rated current
Reverse Leakage Current

Substitute parts are grouped into two categories:

Direct Equivalents: Parts with identical or superior electrical characteristics and matching fast recovery speed classification (trr ≤ 500 ns).

Parametric Equivalents: Parts meeting mandatory voltage and current ratings but with different speed classifications or slightly different electrical characteristics. These require application-level verification for switching performance compatibility.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [mV]	Speed	trr [ns]	Ir @ Vr [µA]	Product Status	RoHS Status
ES3B-13	Diodes Incorporated	100	3	900 @ 3A	Fast Recovery ≤ 500ns	25	10 @ 100V	Discontinued	Non-compliant
ES3B-13-F	Diodes Incorporated	100	3	900 @ 3A	Fast Recovery ≤ 500ns	25	10 @ 100V	Active	ROHS3 Compliant
ES3B-E3/57T	Vishay General Semiconductor - Diodes Division	100	3	900 @ 3A	Fast Recovery ≤ 500ns	30	10 @ 100V	Active	ROHS3 Compliant
ES3B-E3/9AT	Vishay General Semiconductor - Diodes Division	100	3	900 @ 3A	Fast Recovery ≤ 500ns	30	10 @ 100V	Active	ROHS3 Compliant
ES3B	Taiwan Semiconductor Corporation	100	3	950 @ 3A	Fast Recovery ≤ 500ns	35	10 @ 100V	Active	ROHS3 Compliant
RS3B-E3/57T	Vishay General Semiconductor - Diodes Division	100	3	1300 @ 2.5A	Fast Recovery ≤ 500ns	150	10 @ 100V	Active	ROHS3 Compliant
S3B	Diotec Semiconductor	100	3	1150 @ 3A	Standard Recovery >500ns	1500	5 @ 100V	Active	ROHS3 Compliant
S3B-E3/57T	Vishay General Semiconductor - Diodes Division	100	3	1150 @ 2.5A	Standard Recovery >500ns	2500	10 @ 100V	Active	ROHS3 Compliant
S3B-TP	Micro Commercial Co	100	3	1200 @ 3A	Standard Recovery >500ns	—	10 @ 100V	Not For New Designs	ROHS3 Compliant
STTH302S	STMicroelectronics	200	3	950 @ 3A	Fast Recovery ≤ 500ns	35	3 @ 200V	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: ES3B-13-F

The ES3B-13-F is the direct equivalent of the ES3B-13, manufactured by Diodes Incorporated with identical electrical specifications. This part is active in production, ROHS3 compliant, and available in Tape & Reel packaging. The ES3B-13-F provides the most direct replacement path with no design modifications required.

Secondary Recommendation: ES3B-E3/57T or ES3B-E3/9AT

Both Vishay parts (ES3B-E3/57T and ES3B-E3/9AT) maintain fast recovery speed classification and identical forward voltage characteristics. The reverse recovery time increases marginally from 25 ns to 30 ns, which remains within fast recovery specifications. Both parts are ROHS3 compliant and active in production. ES3B-E3/57T is supplied in Cut Tape packaging, while ES3B-E3/9AT is supplied in Tape & Reel.

Alternative Recommendation: ES3B (Taiwan Semiconductor Corporation)

The ES3B from Taiwan Semiconductor Corporation meets all mandatory electrical parameters with fast recovery speed classification. Forward voltage increases to 950 mV and reverse recovery time extends to 35 ns, both remaining within acceptable fast recovery limits. This part is ROHS3 compliant and active in production.

Conditional Recommendation: STTH302S

The STTH302S from STMicroelectronics provides a higher voltage rating (200 V) with identical 3 A current rating and fast recovery speed. This part is suitable for applications where higher reverse voltage margin is beneficial. The forward voltage and reverse recovery time are comparable to the ES3B. STTH302S is ROHS3 compliant and active in production.

Not Recommended for New Designs: S3B-TP

The S3B-TP from Micro Commercial Co carries a "Not For New Designs" product status designation and is therefore unsuitable for new development projects.

Limited Suitability: S3B, S3B-E3/57T, RS3B-E3/57T

These parts employ standard recovery speed classification (>500 ns) with significantly longer reverse recovery times (1500 ns to 2500 ns). These characteristics differ substantially from the fast recovery profile of the ES3B-13. Selection of these parts requires application-level verification that switching speed requirements can accommodate standard recovery performance.

Frequently Asked Questions (FAQ)

Q: Can ES3B-13-F be used as a direct replacement for ES3B-13?

A: Yes. The ES3B-13-F is manufactured by Diodes Incorporated with identical electrical specifications to the ES3B-13. The primary difference is product status (active vs. discontinued) and RoHS compliance (ROHS3 vs. non-compliant). No design modifications are required.

Q: What is the difference between fast recovery and standard recovery diodes?

A: Fast recovery diodes have reverse recovery times ≤ 500 ns, while standard recovery diodes exceed 500 ns. The ES3B-13 specifies 25 ns (fast recovery). Substitutes with standard recovery characteristics (S3B, S3B-E3/57T, RS3B-E3/57T) exhibit significantly longer switching times and may not be suitable for high-frequency switching applications.

Q: Why does STTH302S have a higher voltage rating (200 V vs. 100 V)?

A: The STTH302S is rated for 200 V DC reverse voltage, providing a higher voltage margin than the 100 V ES3B-13. This part can be used in applications where the ES3B-13 is specified, as it exceeds the voltage requirement. However, the application must accommodate the different package and thermal characteristics.

Q: Are all substitute parts RoHS compliant?

A: All recommended substitute parts (ES3B-13-F, ES3B-E3/57T, ES3B-E3/9AT, ES3B, STTH302S) are ROHS3 compliant. The original ES3B-13 is RoHS non-compliant. This compliance difference may be significant for applications subject to RoHS regulations.

Q: What packaging options are available for ES3B-13 equivalents?

A: Packaging options include Tape & Reel (TR), Cut Tape (CT), and bulk packaging. ES3B-13-F is supplied in Tape & Reel. ES3B-E3/57T is supplied in Cut Tape. ES3B-E3/9AT is supplied in Tape & Reel. Packaging selection depends on assembly process requirements and volume specifications.

Q: Can I use S3B or S3B-E3/57T as substitutes?

A: S3B and S3B-E3/57T meet the mandatory voltage and current ratings but employ standard recovery speed classification with significantly longer reverse recovery times (1500 ns and 2500 ns respectively, compared to 25 ns for ES3B-13). These parts are suitable only for applications where switching speed is not a critical parameter. Verification at the application level is required before selection.

Q: What is the significance of forward voltage differences among substitutes?

A: Forward voltage variations (900 mV to 1300 mV) affect power dissipation and thermal performance. The ES3B-13 specifies 900 mV at 3 A. Substitutes with higher forward voltages (ES3B at 950 mV, S3B at 1150 mV) will generate proportionally higher heat. Applications with tight thermal budgets should prioritize substitutes with lower forward voltage specifications.

Q: Is the ES3B from Taiwan Semiconductor Corporation a suitable replacement?

A: Yes. The ES3B maintains fast recovery speed classification and meets all mandatory electrical parameters. Forward voltage increases marginally to 950 mV and reverse recovery time extends to 35 ns, both remaining within acceptable limits for fast recovery operation. This part is ROHS3 compliant and active in production.

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