ES1KE-TP Equivalent & Substitute Parts

Part Overview

The ES1KE-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 800 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (SMA) package. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement continuity. Substitute parts must maintain electrical compatibility within the specified voltage, current, and thermal operating ranges while accommodating package and performance variations.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	800	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.7 V @ 1 A	V
Reverse Recovery Time (trr)	75	ns
Current - Reverse Leakage @ Vr	5	µA @ 800 V
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-50 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the ES1KE-TP are classified into two functional groups based on electrical parameter compatibility:

Group 1: Direct Voltage Rating Equivalents (800 V) Parts maintaining the 800 V reverse voltage rating with 1 A current capacity. These substitutes provide electrical equivalence with minimal circuit redesign. Acceptable variations include forward voltage (Vf), reverse recovery time (trr), and reverse leakage current within standard rectifier diode tolerances. Package variations between DO-214AC (SMA) and DO-214BA (GF1) are mechanically compatible for surface mount applications.

Group 2: Elevated Voltage Alternatives (1000 V) Parts rated for 1000 V reverse voltage with 1 A current capacity. These substitutes provide enhanced voltage margin and are electrically compatible in applications where the ES1KE-TP operates below its maximum voltage rating. The higher voltage rating ensures operation within safe limits with additional design margin.

Key Parameters Determining Substitution:

Voltage - DC Reverse (Vr) (Max): 800 V minimum (1000 V acceptable with margin)
Current - Average Rectified (Io): 1 A (exact match required)
Mounting Type: Surface Mount (required)
Package / Case: DO-214AC (SMA) or DO-214BA (GF1) (both compatible)
Operating Temperature Range: Must encompass application requirements
RoHS Compliance: ROHS3 Compliant (preferred for regulatory alignment)

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	Package	Status
ES1KE-TP	Micro Commercial Co	800	1	1.7 @ 1 A	75	5 @ 800 V	DO-214AC (SMA)	Obsolete
US1M-TP	Micro Commercial Co	1000	1	1.4 @ 2 A	100	10 @ 1000 V	DO-214AC (SMA)	Active
CGRA4006-G	Comchip Technology	800	1	1.1 @ 1 A	—	5 @ 800 V	DO-214AC (SMA)	Active
GF1K-E3/67A	Vishay General Semiconductor	800	1	1.2 @ 1 A	2000	5 @ 800 V	DO-214BA (GF1)	Active
GF1M	onsemi	1000	1	1.2 @ 1 A	2000	5 @ 1000 V	DO-214AC (SMA)	Not For New Designs
GF1M-E3/5CA	Vishay General Semiconductor	1000	1	1.2 @ 1 A	2000	5 @ 1000 V	DO-214BA (GF1)	Active
GF1M-E3/67A	Vishay General Semiconductor	1000	1	1.2 @ 1 A	2000	5 @ 1000 V	DO-214BA (GF1)	Active
GF1M/1754	Vishay General Semiconductor	1000	1	1.2 @ 1 A	2000	5 @ 1000 V	DO-214BA (GF1)	Active
MRA4007T3G	onsemi	1000	1	1.1 @ 1 A	—	10 @ 1000 V	DO-214AC (SMA)	Not For New Designs
NRVA4007T3G	onsemi	1000	1	1.1 @ 1 A	—	10 @ 1000 V	DO-214AC (SMA)	Not For New Designs
RGF1K	onsemi	800	1	1.3 @ 1 A	500	5 @ 800 V	DO-214AC (SMA)	Not For New Designs

Engineering Selection Recommendations

For Direct Replacement (800 V Rating):

CGRA4006-G (Comchip Technology) is the primary equivalent for the ES1KE-TP. Both parts share identical voltage and current ratings (800 V, 1 A), surface mount packaging (DO-214AC SMA), and reverse leakage specifications (5 µA @ 800 V). CGRA4006-G is currently in active production status with 724 units in stock, ensuring procurement continuity. Forward voltage is lower (1.1 V vs. 1.7 V), which reduces power dissipation in the application circuit.

GF1K-E3/67A (Vishay General Semiconductor) provides an alternative 800 V equivalent with active product status and high inventory availability (30,300 units). The package variant (DO-214BA instead of DO-214AC) requires PCB footprint verification but maintains mechanical and electrical compatibility for surface mount assembly. Forward voltage (1.2 V) and reverse leakage (5 µA @ 800 V) are within acceptable ranges.

RGF1K (onsemi) is classified as "Not For New Designs" and should be avoided for new circuit implementations, despite meeting electrical specifications.

For Elevated Voltage Applications (1000 V Rating):

US1M-TP (Micro Commercial Co) is the recommended upgrade path, offering 1000 V reverse voltage rating with identical 1 A current capacity and DO-214AC SMA packaging. Active product status and high inventory (25,276 units) ensure long-term availability. This part is suitable for applications requiring enhanced voltage margin or where circuit redesign accommodates the higher rating.

GF1M-E3/67A (Vishay General Semiconductor) provides a 1000 V alternative in DO-214BA packaging with active status and 7,790 units available. GF1M-E3/5CA (Vishay) offers the same electrical specifications with Cut Tape & Digi-Reel packaging and 18,100 units in stock.

MRA4007T3G and NRVA4007T3G (onsemi) are classified as "Not For New Designs" and should not be selected for new applications.

Compliance and Regulatory Considerations:

All recommended active-status substitutes maintain ROHS3 compliance and REACH unaffected status, aligning with ES1KE-TP regulatory requirements. GF1M/1754 is RoHS non-compliant and should be excluded from new designs requiring regulatory certification.

Frequently Asked Questions (FAQ)

Q: Can US1M-TP replace ES1KE-TP directly in existing circuits?

A: US1M-TP is electrically compatible as a substitute. The 1000 V rating exceeds the ES1KE-TP's 800 V specification, providing additional voltage margin. No circuit modifications are required for voltage compatibility. Forward voltage characteristics differ slightly (1.4 V @ 2 A vs. 1.7 V @ 1 A), which may reduce power dissipation. Verify that the application does not depend on the specific forward voltage characteristics of the original part.

Q: What is the difference between DO-214AC and DO-214BA packages?

A: Both packages are surface mount rectifier diode packages with identical electrical performance. DO-214AC (SMA) and DO-214BA (GF1) differ in physical dimensions and PCB footprint geometry. Substitution between these packages requires PCB layout verification to ensure the component footprint matches the available land pattern. Consult the manufacturer datasheets for precise dimensional specifications.

Q: Why are some substitute parts marked "Not For New Designs"?

A: Parts designated "Not For New Designs" are in mature or declining production phases. While electrically functional, these parts may face future availability constraints or discontinuation. For new circuit designs, select parts with "Active" product status to ensure long-term supply chain reliability and manufacturing support.

Q: Is CGRA4006-G a direct equivalent to ES1KE-TP?

A: CGRA4006-G is a direct electrical equivalent with matching 800 V and 1 A ratings, identical reverse leakage (5 µA @ 800 V), and compatible surface mount packaging (DO-214AC SMA). The primary difference is lower forward voltage (1.1 V vs. 1.7 V), which reduces power dissipation. CGRA4006-G is manufactured by Comchip Technology and maintains active production status.

Q: Can I use GF1K-E3/67A as a substitute despite the different package designation?

A: GF1K-E3/67A is electrically compatible with matching 800 V and 1 A specifications. The package designation (DO-214BA vs. DO-214AC) indicates a different physical form factor. Both are surface mount packages suitable for automated assembly. Verify PCB footprint compatibility before substitution. The DO-214BA footprint may differ from the DO-214AC land pattern on existing circuit boards.

Q: What parameters must remain constant when selecting a substitute diode?

A: The following parameters must remain constant or exceed the original specification: Voltage - DC Reverse (Vr) minimum 800 V, Current - Average Rectified (Io) exactly 1 A, Mounting Type surface mount, and Operating Temperature Range encompassing the application requirements. Forward voltage, reverse recovery time, and reverse leakage current may vary within standard rectifier diode tolerances without affecting basic circuit function.

Q: Are there inventory considerations when selecting a substitute?

A: Inventory levels are provided for reference only and reflect current stock status. US1M-TP (25,276 units), GF1K-E3/67A (30,300 units), and GF1M-E3/5CA (18,100 units) offer substantial inventory availability. CGRA4006-G (724 units) and GF1M-E3/67A (7,790 units) have lower stock levels. Procurement timelines and supply chain requirements should factor into part selection for production applications.

Q: Does RoHS compliance affect substitution decisions?

A: All recommended active-status substitutes maintain ROHS3 compliance, matching the ES1KE-TP specification. GF1M/1754 is RoHS non-compliant and should be excluded from applications requiring regulatory certification. For new designs subject to RoHS directives, select only ROHS3 compliant alternatives.

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