HER207G-TP Equivalent & Substitute Parts

Part Overview

The HER207G-TP is a general-purpose rectifier diode rated for 800 V DC reverse voltage and 2 A average rectified current, packaged in DO-15 (DO-204AC) axial through-hole configuration. Manufactured by Micro Commercial Co, this component is classified as "Not For New Designs," indicating it has reached end-of-life status. The product status necessitates identification of equivalent and substitute parts for ongoing maintenance, repair, and legacy system support applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	800	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.7 @ 2 A	V
Reverse Recovery Time (trr)	75	ns
Current - Reverse Leakage @ Vr	5	µA @ 800 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Mounting Type	Through Hole	—
Package / Case	DO-204AC, DO-15, Axial	—
Operating Temperature - Junction	-55°C ~ 150°C	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the HER207G-TP is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 800 V
Current - Average Rectified (Io): 2 A
Voltage - Forward (Vf) (Max) @ If: 1.7 V @ 2 A
Mounting Type: Through Hole
Package / Case: DO-204AC, DO-15, Axial

Allowable Variation Parameters:

Reverse Recovery Time (trr): Substitute values must not exceed the maximum specified for fast recovery diodes (≤ 500 ns)
Current - Reverse Leakage @ Vr: Lower values are acceptable
Capacitance @ Vr, F: Variation permitted within fast recovery classification
Operating Temperature - Junction: Minimum temperature must support -55°C or lower; maximum must support 150°C or higher
RoHS and REACH Compliance: Preferred for new applications; non-compliant parts acceptable for legacy support

Three substitute parts meet the mandatory electrical and mechanical criteria for the HER207G-TP.

Parameter Comparison

Parameter	HER207G-TP (Main)	HER207G (TSC)	UF208G_R2_00001 (Panjit)	EGP20K (Nexperia)
Manufacturer	Micro Commercial Co	Taiwan Semiconductor Corporation	Panjit International Inc.	Nexperia USA Inc.
Voltage - DC Reverse (Vr) (Max)	800 V	800 V	800 V	800 V
Current - Average Rectified (Io)	2 A	2 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	1.7 V @ 2 A	1.7 V @ 2 A	1.7 V @ 2 A	1.7 V @ 2 A
Reverse Recovery Time (trr)	75 ns	75 ns	100 ns	75 ns
Current - Reverse Leakage @ Vr	5 µA @ 800 V	5 µA @ 800 V	1 µA @ 800 V	5 µA @ 800 V
Capacitance @ Vr, F	30 pF @ 4V, 1MHz	20 pF @ 4V, 1MHz	35 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-65°C ~ 150°C
Product Status	Not For New Designs	Active	Active	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant
Packaging	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)	Bulk

Engineering Selection Recommendations

HER207G (Taiwan Semiconductor Corporation)

The HER207G is the primary recommended substitute for the HER207G-TP. This part maintains identical electrical specifications across all critical parameters: 800 V reverse voltage, 2 A average rectified current, 1.7 V forward voltage, and 75 ns reverse recovery time. The HER207G carries Active product status, ensuring long-term availability and supply chain stability. Full ROHS3 compliance aligns with current environmental and regulatory standards. The part is available in Cut Tape packaging with 4,585 units in stock. Operating temperature range (-55°C ~ 150°C) matches the original specification exactly.

UF208G_R2_00001 (Panjit International Inc.)

The UF208G_R2_00001 qualifies as a parametric equivalent substitute. All mandatory electrical parameters align with the HER207G-TP: 800 V reverse voltage, 2 A average rectified current, and 1.7 V forward voltage. The reverse recovery time of 100 ns remains within fast recovery classification (≤ 500 ns). Reverse leakage current is superior at 1 µA compared to 5 µA. The part maintains Active product status and ROHS3 compliance. Tape & Reel packaging matches the original HER207G-TP format with 965 units in stock. Operating temperature range (-55°C ~ 150°C) is identical to the main part.

EGP20K (Nexperia USA Inc.)

The EGP20K meets all mandatory electrical and mechanical substitution criteria: 800 V reverse voltage, 2 A average rectified current, 1.7 V forward voltage, and 75 ns reverse recovery time. However, this part carries Obsolete product status, indicating discontinued manufacturing and limited future availability. RoHS non-compliance restricts application in new designs and regulated environments. The EGP20K is suitable only for legacy system maintenance where regulatory compliance is not required. Bulk packaging differs from the original Tape & Reel format. Extended operating temperature range (-65°C ~ 150°C) provides additional low-temperature capability. Inventory of 12,807 units is currently available.

Frequently Asked Questions (FAQ)

Q: Can the HER207G-TP be directly replaced with the HER207G?

A: Yes. The HER207G (Taiwan Semiconductor Corporation) is a direct parametric equivalent. All critical electrical specifications—800 V reverse voltage, 2 A average rectified current, 1.7 V forward voltage, and 75 ns reverse recovery time—are identical. Both parts use DO-15 axial through-hole packaging and operate across the same temperature range (-55°C ~ 150°C). The primary difference is product status: HER207G is Active, while HER207G-TP is Not For New Designs.

Q: What is the difference between the HER207G and UF208G_R2_00001?

A: Both parts meet the mandatory electrical requirements for substitution. The UF208G_R2_00001 has a slightly higher reverse recovery time (100 ns versus 75 ns) but remains within fast recovery classification. The UF208G_R2_00001 exhibits lower reverse leakage current (1 µA versus 5 µA), which may be advantageous in low-leakage applications. Both parts are Active, ROHS3 compliant, and available in Tape & Reel packaging. Selection between these two depends on specific application requirements for reverse recovery speed and leakage characteristics.

Q: Why is the EGP20K listed as a substitute if it is Obsolete?

A: The EGP20K meets all mandatory electrical and mechanical substitution parameters and is included for completeness in legacy system support scenarios. However, Obsolete status indicates discontinued production. This part is suitable only for maintenance and repair of existing equipment where regulatory compliance is not required. For new designs or regulated applications, the HER207G or UF208G_R2_00001 are preferred.

Q: Are there packaging differences between the substitute parts?

A: Yes. The HER207G-TP is supplied in Tape & Reel (TR) packaging. The HER207G is available in Cut Tape (CT) packaging. The UF208G_R2_00001 is supplied in Tape & Reel (TR) format, matching the original. The EGP20K is supplied in Bulk packaging. All parts use identical DO-15 axial through-hole case style and are mechanically interchangeable on printed circuit boards.

Q: Do all substitute parts meet RoHS compliance?

A: The HER207G and UF208G_R2_00001 are both ROHS3 compliant, matching the original HER207G-TP. The EGP20K is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements, only the HER207G or UF208G_R2_00001 are acceptable.

Q: What is the significance of reverse recovery time differences?

A: All listed parts, including the EGP20K (75 ns), HER207G (75 ns), and UF208G_R2_00001 (100 ns), are classified as fast recovery diodes with reverse recovery times ≤ 500 ns. The differences between 75 ns and 100 ns are minor and do not affect fast recovery classification. Selection based on reverse recovery time should consider specific circuit switching frequency and efficiency requirements.

Q: Can the HER207G-TP be used interchangeably with all listed substitutes in any application?

A: All listed parts are mechanically and electrically compatible for direct substitution in circuits designed for 800 V, 2 A fast recovery rectifier diodes in DO-15 packaging. However, the EGP20K's Obsolete status and RoHS non-compliance restrict its use in regulated environments. The HER207G is the preferred choice for new applications and long-term supply assurance. The UF208G_R2_00001 is an acceptable alternative with superior reverse leakage characteristics.

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