ES2B-TP General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The ES2B-TP is a general purpose rectifier diode manufactured by Micro Commercial Co, rated for 100 V DC reverse voltage and 2 A average rectified current in a DO-214AC (HSMA) surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and design requirements. The ES2B-TP features fast recovery characteristics with a reverse recovery time of 50 ns and forward voltage of 975 mV at 2 A, suitable for standard rectification applications requiring surface mount technology.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	975 mV @ 2 A	mV
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	DO-214AC, SMA	—
Operating Temperature - Junction	-50°C ~ 150°C	°C
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the ES2B-TP is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io): 2 A minimum
Package / Case: DO-214AC, SMA surface mount
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type: Surface Mount

Secondary Compatibility Factors:

Operating Temperature Range: Must encompass or exceed -50°C to 150°C
Reverse Recovery Time (trr): ≤ 50 ns
Current - Reverse Leakage @ Vr: ≤ 5 µA @ 100 V
RoHS Compliance: ROHS3 Compliant

The ES2B-TP can be directly replaced by the ES2B-LTP from Micro Commercial Co, which maintains identical voltage and current ratings in the same package. Lower current rated diodes (1 A) are not direct substitutes for 2 A applications but may be listed as cross-references in legacy documentation. Substitutes must maintain the 2 A current rating to ensure proper circuit operation and thermal performance.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [mV]	trr [ns]	Ir @ Vr [µA]	Package	Temp Range [°C]	Product Status
ES2B-TP	Micro Commercial Co	100	2	975 @ 2A	50	5 @ 100V	DO-214AC (HSMA)	-50 ~ 150	Obsolete
ES2B-LTP	Micro Commercial Co	100	2	950 @ 2A	35	5 @ 100V	DO-214AC (SMA)	-65 ~ 175	Not For New Designs
CMR1U-01M BK PBFREE	Central Semiconductor Corp	100	1	1000 @ 1A	35	5 @ 100V	DO-214AC (SMA)	-65 ~ 150	Active
CMR1U-01M TR13 PBFREE	Central Semiconductor Corp	100	1	1000 @ 1A	35	5 @ 100V	DO-214AC (SMA)	-65 ~ 175	Active
EGF1B	Fairchild Semiconductor	100	1	1000 @ 1A	50	10 @ 100V	DO-214AC (SMA)	-65 ~ 175	Active
ES1B-13-F	Diodes Incorporated	100	1	920 @ 1A	25	5 @ 100V	DO-214AC (SMA)	-55 ~ 150	Active
ES1B-E3/5AT	Vishay General Semiconductor - Diodes Division	100	1	920 @ 1A	25	5 @ 100V	DO-214AC (SMA)	-55 ~ 150	Active
ES1B-E3/61T	Vishay General Semiconductor - Diodes Division	100	1	920 @ 1A	25	5 @ 100V	DO-214AC (SMA)	-55 ~ 150	Active
ES1B-M3/5AT	Vishay General Semiconductor - Diodes Division	100	1	920 @ 1A	25	5 @ 100V	DO-214AC (SMA)	-55 ~ 150	Active
ES1B-M3/61T	Vishay General Semiconductor - Diodes Division	100	1	920 @ 1A	25	5 @ 100V	DO-214AC (SMA)	-55 ~ 150	Active
ES1BHE3_A/H	Vishay General Semiconductor - Diodes Division	100	1	920 @ 1A	25	5 @ 100V	DO-214AC (SMA)	-55 ~ 150	Active

Engineering Selection Recommendations

Direct Equivalent (2 A Rating):

The ES2B-LTP from Micro Commercial Co is the only listed substitute that maintains the 2 A current rating of the ES2B-TP. Although classified as "Not For New Designs," it provides electrical equivalence with improved reverse recovery time (35 ns vs. 50 ns) and extended operating temperature range (-65°C to 175°C vs. -50°C to 150°C). Both parts are ROHS3 compliant and carry identical voltage and current specifications. The ES2B-LTP is suitable for replacement in existing designs where the ES2B-TP is no longer available.

Lower Current Alternatives (1 A Rating):

The remaining substitute parts listed (CMR1U-01M variants, EGF1B, ES1B series, and ES1BHE3_A/H) are rated for 1 A average rectified current and are not direct electrical equivalents for 2 A applications. These parts share the 100 V reverse voltage rating and DO-214AC surface mount package but operate at half the current capacity. Selection of 1 A rated diodes for 2 A circuits results in thermal stress, reduced component life, and potential circuit failure.

Compliance and Certification:

All listed substitute parts maintain ROHS3 compliance. The ES1BHE3_A/H variant includes AEC-Q101 automotive qualification, suitable for applications requiring automotive-grade reliability. Selection should account for specific application requirements regarding temperature range, reverse recovery time, and forward voltage characteristics.

Frequently Asked Questions (FAQ)

Q: Can I use a 1 A rated diode as a substitute for the 2 A ES2B-TP?

A: No. The ES2B-TP is rated for 2 A average rectified current. Substituting a 1 A rated diode (such as ES1B-13-F, ES1B-E3/5AT, or CMR1U-01M variants) will result in the diode operating above its rated current capacity, causing excessive heat generation, accelerated aging, and potential failure. Current rating is a primary substitution criterion that cannot be compromised.

Q: What is the difference between ES2B-TP and ES2B-LTP?

A: Both parts are manufactured by Micro Commercial Co with identical 100 V / 2 A ratings and DO-214AC package. The ES2B-LTP offers improved reverse recovery time (35 ns vs. 50 ns) and extended operating temperature range (-65°C to 175°C vs. -50°C to 150°C). The ES2B-LTP is classified as "Not For New Designs" but remains the direct electrical equivalent for replacement applications.

Q: Are the packaging variants (HSMA vs. SMA) interchangeable?

A: The ES2B-TP uses DO-214AC (HSMA) packaging while the ES2B-LTP uses DO-214AC (SMA) packaging. Both are surface mount packages in the DO-214AC form factor. Verify PCB footprint compatibility before substitution, as minor dimensional differences may exist between HSMA and SMA variants.

Q: Why are most substitute parts rated for 1 A instead of 2 A?

A: The ES2B-TP is a higher current rated device (2 A) compared to common general purpose rectifier diodes in the same package. The 1 A alternatives listed represent more widely available parts in the DO-214AC package. For 2 A applications, the ES2B-LTP remains the only listed direct substitute.

Q: What does "Not For New Designs" mean for the ES2B-LTP?

A: This product status indicates that the manufacturer does not recommend the ES2B-LTP for new circuit designs. However, it remains available for replacement and maintenance of existing products. For new designs, consider evaluating active alternatives or consulting with the manufacturer for current 2 A rectifier diode recommendations.

Q: Is the ES1BHE3_A/H suitable for automotive applications?

A: The ES1BHE3_A/H includes AEC-Q101 automotive qualification and is rated for 1 A. While it meets automotive reliability standards, it cannot replace the ES2B-TP in 2 A circuits due to insufficient current rating. It is suitable only for automotive applications requiring 1 A rectification at 100 V.

Q: What is reverse recovery time and why does it matter?

A: Reverse recovery time (trr) is the time required for a diode to stop conducting when reverse bias is applied. The ES2B-TP has a trr of 50 ns. Lower trr values (such as 25 ns in ES1B variants) indicate faster switching characteristics, which reduce switching losses in high-frequency applications. For standard rectification, trr differences within this range have minimal impact on circuit performance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, meeting environmental and hazardous substance restrictions. This ensures compatibility with modern manufacturing and regulatory requirements.

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