ES1M-TP Equivalent & Substitute Parts

Part Overview

The ES1M-TP is a general-purpose rectifier diode rated for 1000 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (HSMA) package. This part is manufactured by Micro Commercial Co and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for new designs and ongoing production requirements. Substitute parts maintain the core electrical specifications while offering improved availability and active product support from manufacturers.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1000	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.7 V @ 1 A	V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	-
Reverse Recovery Time (trr)	100	ns
Current - Reverse Leakage @ Vr	5	µA @ 1000 V
Mounting Type	Surface Mount	-
Package / Case	DO-214AC, SMA	-
Operating Temperature - Junction	-50°C ~ 150°C	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the ES1M-TP is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a minimum DC reverse voltage rating of 1000 V to ensure equivalent circuit protection and reliability.

Current Rating: All substitute parts must support a minimum average rectified current of 1 A.

Package Compatibility: Substitute parts must use surface mount packages compatible with DO-214AC footprints (SMA or equivalent mechanical dimensions).

Recovery Characteristics: The ES1M-TP specifies fast recovery (≤ 500ns) with a reverse recovery time of 100 ns. Substitute parts with standard recovery characteristics (> 500ns) are functionally acceptable for general-purpose rectification applications where switching speed is not critical.

Temperature Range: Operating temperature ranges may vary among substitutes; selection depends on application requirements.

Product Status: Active product status is preferred for new designs and long-term availability assurance.

Substitute parts are grouped into two categories: direct equivalents (matching voltage, current, and recovery speed) and functional equivalents (matching voltage and current with different recovery characteristics).

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	Speed	trr [ns]	Package	Product Status
ES1M-TP	Micro Commercial Co	1000	1	1.7 @ 1A	Fast Recovery ≤ 500ns	100	DO-214AC (HSMA)	Obsolete
US1M-TP	Micro Commercial Co	1000	1	1.4 @ 2A	Fast Recovery ≤ 500ns	100	DO-214AC (SMA)	Active
CGRA4007-G	Comchip Technology	1000	1	1.1 @ 1A	Standard Recovery > 500ns	-	DO-214AC (SMA)	Active
CURA107-G	Comchip Technology	1000	1	1.7 @ 1A	Fast Recovery ≤ 500ns	75	DO-214AC (SMA)	Active
GF1K-E3/67A	Vishay General Semiconductor	800	1	1.2 @ 1A	Standard Recovery > 500ns	2000	DO-214BA (GF1)	Active
GF1M	onsemi	1000	1	1.2 @ 1A	Standard Recovery > 500ns	2000	DO-214AC (SMA)	Not For New Designs
GF1M-E3/5CA	Vishay General Semiconductor	1000	1	1.2 @ 1A	Standard Recovery > 500ns	2000	DO-214BA (GF1)	Active
GF1M-E3/67A	Vishay General Semiconductor	1000	1	1.2 @ 1A	Standard Recovery > 500ns	2000	DO-214BA (GF1)	Active
GF1M/1754	Vishay General Semiconductor	1000	1	1.2 @ 1A	Standard Recovery > 500ns	2000	DO-214BA (GF1)	Active
MRA4006T3G	onsemi	800	1	1.1 @ 1A	Standard Recovery > 500ns	-	DO-214AC (SMA)	Not For New Designs
MRA4007T3G	onsemi	1000	1	1.1 @ 1A	Standard Recovery > 500ns	-	DO-214AC (SMA)	Not For New Designs

Engineering Selection Recommendations

Primary Substitute - Direct Equivalent:

US1M-TP (Micro Commercial Co) is the primary substitute for ES1M-TP. Both parts are manufactured by the same supplier, maintain identical voltage and current ratings, and share fast recovery characteristics with 100 ns reverse recovery time. US1M-TP is in active production status with significantly higher inventory availability (25,276 pcs vs. 1,110 pcs). The package variant changes from DO-214AC (HSMA) to DO-214AC (SMA), which maintains mechanical and electrical compatibility for standard PCB layouts.

Secondary Substitutes - Fast Recovery Equivalents:

CURA107-G (Comchip Technology) provides fast recovery performance with 75 ns reverse recovery time, superior to the ES1M-TP specification. This part maintains 1000 V and 1 A ratings with identical forward voltage characteristics at 1 A. Active product status and high inventory (13,182 pcs) support production continuity.

Functional Substitutes - Standard Recovery:

CGRA4007-G, GF1M-E3/5CA, GF1M-E3/67A, and GF1M/1754 maintain the 1000 V and 1 A electrical specifications but employ standard recovery characteristics (> 500ns, 2000 ns trr). These parts are suitable for applications where switching speed is not a limiting factor. All are in active production status with robust inventory levels. GF1M-E3/5CA and GF1M-E3/67A use DO-214BA packages, which require PCB layout verification for mechanical compatibility.

Not Recommended for New Designs:

GF1M (onsemi) and MRA4007T3G (onsemi) carry "Not For New Designs" status and should not be selected for new product development despite meeting electrical specifications.

Voltage-Reduced Alternatives:

GF1K-E3/67A and MRA4006T3G are rated for 800 V maximum reverse voltage. These parts are suitable only for applications where the circuit design accommodates the reduced voltage margin.

All recommended substitutes maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can US1M-TP directly replace ES1M-TP without PCB modifications?

A: US1M-TP uses the DO-214AC (SMA) package while ES1M-TP uses DO-214AC (HSMA). Both packages share the same electrical footprint and mechanical dimensions for standard surface mount applications. No PCB modifications are required for standard designs.

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

A: Fast recovery diodes (≤ 500ns) switch off more quickly than standard recovery diodes (> 500ns). ES1M-TP specifies 100 ns recovery time. Substitutes with standard recovery (2000 ns) are acceptable for general-purpose rectification but may introduce higher switching losses in high-frequency applications. Application requirements determine whether recovery speed is critical.

Q: Why do some substitutes have lower forward voltage ratings?

A: Forward voltage (Vf) varies with measurement current. ES1M-TP specifies Vf at 1 A, while US1M-TP specifies Vf at 2 A. Lower forward voltage at higher current indicates improved efficiency characteristics. Substitutes with lower Vf values generate less heat during operation.

Q: Are DO-214BA packages compatible with DO-214AC PCB layouts?

A: DO-214BA and DO-214AC packages have different mechanical dimensions. PCB footprints must be verified before substituting parts with different package designations. Consult package datasheets for specific lead spacing and body dimensions.

Q: Can I use 800 V rated diodes in a 1000 V circuit?

A: No. GF1K-E3/67A and MRA4006T3G are rated for 800 V maximum reverse voltage. Using these parts in circuits designed for 1000 V operation creates risk of diode failure and circuit malfunction. Voltage rating must match or exceed circuit requirements.

Q: What does "Not For New Designs" product status mean?

A: Parts marked "Not For New Designs" are in mature or declining production phases. Manufacturers may discontinue these parts with limited notice. New product designs should use parts with "Active" status to ensure long-term availability and supply chain stability.

Q: Are all substitute parts RoHS3 compliant?

A: All recommended substitute parts carry ROHS3 compliance status except GF1M/1754, which is RoHS non-compliant. For applications requiring RoHS compliance, select from the compliant alternatives.

Q: How do I verify package compatibility before ordering substitutes?

A: Obtain the PCB footprint specifications from your design files and compare against the package dimensions provided in the substitute part datasheets. DO-214AC (SMA) and DO-214AC (HSMA) are mechanically compatible. DO-214BA packages require separate footprint verification.

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