ES1D-TP Equivalent & Substitute Parts

Part Overview

The ES1D-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 1 A average rectified current in a DO-214AC (HSMA) surface mount package. This part is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. Active alternatives with identical or superior electrical characteristics are available from multiple manufacturers.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	975 mV @ 1 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	5	µA @ 200 V
Mounting Type	Surface Mount	—
Package / Case	DO-214AC, SMA	—
Operating Temperature - Junction	-50 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the ES1D-TP is determined by strict equivalence across the following critical parameters:

Voltage Rating: Reverse voltage must equal or exceed 200 V
Current Rating: Average rectified current must equal or exceed 1 A
Speed Classification: Fast recovery characteristic (≤ 500ns for > 200mA)
Reverse Recovery Time: Must not exceed 50 ns
Reverse Leakage Current: Must not exceed 5 µA @ 200 V
Mounting Type: Surface mount configuration required
Package Compatibility: DO-214AC (SMA) or equivalent mechanical footprint
Temperature Range: Operating junction temperature must support -50°C to 150°C minimum
Compliance: RoHS3 compliance and MSL 1 rating required

Substitute parts are grouped into two categories:

Direct Equivalents: Parts with identical electrical specifications and active product status, suitable for direct replacement without design modification.

Functional Equivalents: Parts meeting all critical electrical parameters with enhanced specifications (lower forward voltage, faster recovery time, extended temperature range, or improved leakage characteristics) that provide superior performance while maintaining mechanical and electrical compatibility.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ 1A [mV]	trr [ns]	Ir @ 200V [µA]	Package	Tj (Max) [°C]	Status
ES1D-TP	Micro Commercial Co	200	1	975	50	5	DO-214AC (HSMA)	150	Obsolete
ES1D-LTP	Micro Commercial Co	200	1	950	35	5	DO-214AC (SMA)	175	Active
MURA120T3G	onsemi	200	1	875	35	2	DO-214AC (SMA)	175	Active
CGRA4003-G	Comchip Technology	200	1	1100	—	5	DO-214AC (SMA)	150	Active
CMR1F-02M TR13 PBFREE	Central Semiconductor Corp	200	1	1300	150	5	DO-214AC (SMA)	150	Active
CURA103-G	Comchip Technology	200	1	1000	50	5	DO-214AC (SMA)	150	Active
CURM103-G	Comchip Technology	200	1	1000	50	5	SOD-123T	150	Active
EGF1D-E3/5CA	Vishay General Semiconductor	200	1	1000	50	5	DO-214BA (GF1)	175	Active
EGF1D-E3/67A	Vishay General Semiconductor	200	1	1000	50	5	DO-214BA (GF1)	175	Active

Engineering Selection Recommendations

Primary Recommendation: ES1D-LTP

The ES1D-LTP from Micro Commercial Co is the direct successor to the ES1D-TP. It maintains the same base product number (ES1D) and electrical classification while offering active product status. The ES1D-LTP provides improved specifications including reduced forward voltage (950 mV vs. 975 mV), faster reverse recovery time (35 ns vs. 50 ns), and extended maximum junction temperature (175°C vs. 150°C). The package variant (SMA vs. HSMA) is mechanically compatible with standard DO-214AC footprints. RoHS3 compliance and MSL 1 rating are maintained.

Secondary Recommendation: MURA120T3G

The MURA120T3G from onsemi is an active, high-volume alternative meeting all electrical requirements. It delivers superior performance with the lowest forward voltage (875 mV @ 1 A) and reduced reverse leakage current (2 µA vs. 5 µA @ 200 V). Reverse recovery time matches the ES1D-LTP at 35 ns. Extended temperature range (-65°C to 175°C) provides additional thermal margin. RoHS3 compliance and MSL 1 rating are confirmed.

Tertiary Recommendations: CURA103-G and EGF1D Series

The CURA103-G from Comchip Technology and EGF1D series from Vishay General Semiconductor (SUPERECTIFIER® technology) provide functional equivalence with identical reverse recovery time (50 ns) matching the original ES1D-TP specification. Both maintain 200 V / 1 A ratings and RoHS3 compliance. The Vishay EGF1D parts offer extended temperature range to 175°C. These options are suitable where forward voltage and leakage characteristics are non-critical to circuit performance.

Not Recommended: CMR1F-02M and CURM103-G

The CMR1F-02M exhibits excessive reverse recovery time (150 ns), exceeding the 50 ns specification of the ES1D-TP and degrading switching performance. The CURM103-G, while electrically equivalent, uses a SOD-123T package that is mechanically incompatible with DO-214AC footprints and requires PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can ES1D-LTP directly replace ES1D-TP without PCB modification?

A: Yes. Both parts use DO-214AC (SMA) package geometry with identical mechanical footprint and pin configuration. The HSMA and SMA package variants are mechanically interchangeable on standard DO-214AC PCB layouts.

Q: What is the difference between DO-214AC (HSMA) and DO-214AC (SMA)?

A: HSMA and SMA are both DO-214AC package designations referring to surface mount diode packages with identical external dimensions and lead spacing. The designations reflect internal construction or supplier-specific nomenclature but do not affect PCB compatibility or electrical performance.

Q: Is MURA120T3G suitable for designs currently using ES1D-TP?

A: Yes. The MURA120T3G meets or exceeds all electrical specifications of the ES1D-TP. The lower forward voltage (875 mV vs. 975 mV) and reduced leakage current (2 µA vs. 5 µA) represent performance improvements. Mechanical compatibility with DO-214AC footprints is confirmed.

Q: Why is CMR1F-02M not recommended as a substitute?

A: The CMR1F-02M has a reverse recovery time of 150 ns, which exceeds the 50 ns specification of the ES1D-TP by a factor of three. This degradation in switching speed can cause increased switching losses and electromagnetic interference in high-frequency applications, making it unsuitable for direct substitution.

Q: Can CURM103-G replace ES1D-TP?

A: The CURM103-G meets all electrical specifications but uses a SOD-123T package instead of DO-214AC. This package is mechanically incompatible with existing PCB layouts designed for DO-214AC components. Substitution requires PCB redesign and is not recommended for direct replacement.

Q: What compliance certifications apply to all recommended substitutes?

A: All recommended substitute parts carry RoHS3 compliance and Moisture Sensitivity Level 1 (MSL 1 - Unlimited) ratings, matching the original ES1D-TP. REACH status is unaffected for all parts. ECCN classification is EAR99 for all components.

Q: Does operating temperature range affect substitution suitability?

A: The ES1D-TP operates from -50°C to 150°C. Substitute parts with extended ranges (such as ES1D-LTP and MURA120T3G at -65°C to 175°C) provide additional thermal margin and are fully compatible. Parts with identical or narrower ranges remain suitable if the application temperature envelope does not exceed the specified limits.

Q: Are there inventory considerations for selecting a substitute?

A: Yes. ES1D-LTP has 335,300 units in stock, MURA120T3G has 129,300 units, and CURA103-G has 28,880 units. ES1D-TP (obsolete) has 52,580 units remaining. For long-term procurement, ES1D-LTP and MURA120T3G offer superior availability.

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