HER603-TP Equivalent & Substitute Parts

Part Overview

The HER603-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 6 A average rectified current in an R-6 axial through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The HER603-TP features fast recovery characteristics with a reverse recovery time of 50 ns, suitable for applications requiring rapid switching performance in power conversion circuits.

Substiute Parts

HER603-TP

Micro Commercial CoIn Stock: 822HER603-TP Datasheet

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6A02-G

Comchip TechnologyIn Stock: 7136A02-G Datasheet

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6A02B-G

Comchip TechnologyIn Stock: 11516A02B-G Datasheet

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GI752-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 1864GI752-E3/54 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the HER603-TP is determined by matching the following critical electrical and mechanical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io): 6 A
• Mounting Type: Through Hole
• Package / Case: R-6 or P600 axial configuration
• RoHS Status: ROHS3 Compliant

Acceptable Variation Parameters:

• Voltage - Forward (Vf) (Max) @ If: Tolerance range 0.9 V to 1.1 V @ 6 A
• Reverse Recovery Time (trr): Fast recovery (≤500 ns) or standard recovery (>500 ns)
• Current - Reverse Leakage @ Vr: 5 µA to 10 µA @ 200 V
• Operating Temperature - Junction: Minimum -50°C, maximum 125°C to 150°C

Three substitute parts meet these criteria: 6A02-G and 6A02B-G (Comchip Technology) and GI752-E3/54 (Vishay General Semiconductor - Diodes Division). All three maintain the 200 V / 6 A electrical specification and through-hole axial mounting configuration. The primary differences relate to recovery speed classification, forward voltage characteristics, and package form factor.

Parameter Comparison

Engineering Selection Recommendations

6A02-G (Comchip Technology): This substitute maintains identical electrical specifications to the HER603-TP with 200 V reverse voltage and 6 A average rectified current. The part is active in production status and ROHS3 compliant. The R-6 axial package provides direct mechanical compatibility. Forward voltage is reduced to 1 V @ 6 A, resulting in lower power dissipation. The operating temperature range is narrower (-55 to 125°C) compared to the HER603-TP. This part is suitable for applications where the reduced temperature range is acceptable and lower forward voltage drop is beneficial.

6A02B-G (Comchip Technology): This substitute is electrically identical to the 6A02-G with the same 200 V / 6 A rating and 1 V forward voltage @ 6 A. The primary distinction is bulk packaging rather than tape and box format. The part is active in production and ROHS3 compliant. The R-6 axial package provides direct mechanical compatibility. Operating temperature range is -55 to 125°C. This part is suitable for high-volume procurement where bulk packaging is preferred.

GI752-E3/54 (Vishay General Semiconductor - Diodes Division): This substitute meets the 200 V reverse voltage and 6 A average rectified current specifications. The part is active in production and ROHS3 compliant. The P600 axial package differs from the R-6 package of the HER603-TP; physical dimensions and lead spacing require verification for mechanical fit in existing designs. Forward voltage is 0.9 V @ 6 A, providing the lowest power dissipation among all options. Reverse leakage current is reduced to 5 µA @ 200 V. Operating temperature range extends to 150°C maximum, matching the HER603-TP upper limit. This part is suitable for applications where the P600 package form factor is compatible and lower forward voltage is advantageous.

Frequently Asked Questions (FAQ)

Q: Can the 6A02-G or 6A02B-G be used as direct replacements for the HER603-TP?

A: Both 6A02-G and 6A02B-G are direct electrical and mechanical substitutes for the HER603-TP. All three parts share identical 200 V reverse voltage and 6 A average rectified current ratings, and all use the R-6 axial through-hole package. The primary difference is recovery speed classification: the HER603-TP is fast recovery (50 ns), while the Comchip parts are standard recovery (>500 ns). This difference affects switching performance in high-frequency applications. Both Comchip parts are active in production status, addressing the obsolescence of the HER603-TP.

Q: What is the difference between 6A02-G and 6A02B-G?

A: The 6A02-G and 6A02B-G are electrically identical. The difference is packaging format: 6A02-G is supplied in Tape & Box (TB) format, while 6A02B-G is supplied in Bulk format. Both use the R-6 axial package and have identical electrical specifications. Selection between these two depends on procurement and assembly requirements.

Q: Can the GI752-E3/54 be used in place of the HER603-TP?

A: The GI752-E3/54 meets the electrical specifications of 200 V reverse voltage and 6 A average rectified current. However, the package form factor differs: GI752-E3/54 uses a P600 axial package, while HER603-TP uses an R-6 axial package. Physical dimensions and lead spacing between these packages differ. Mechanical compatibility must be verified for the specific application before substitution. If the P600 package dimensions are compatible with the circuit board layout and component mounting, the GI752-E3/54 is electrically suitable.

Q: What are the key differences in forward voltage between these parts?

A: The HER603-TP has a maximum forward voltage of 1.1 V @ 6 A. The 6A02-G and 6A02B-G both have 1 V @ 6 A, representing a 0.1 V reduction. The GI752-E3/54 has the lowest forward voltage at 0.9 V @ 6 A, representing a 0.2 V reduction compared to the HER603-TP. Lower forward voltage results in reduced power dissipation and heat generation in the diode. For applications sensitive to power loss, the GI752-E3/54 offers the best efficiency.

Q: Why does the HER603-TP have a faster recovery time than the substitute parts?

A: The HER603-TP is classified as fast recovery with a reverse recovery time of 50 ns, while the substitute parts are standard recovery (>500 ns). Recovery speed is determined by the semiconductor manufacturing process and doping profile. Fast recovery diodes are optimized for high-frequency switching applications where rapid turn-off is critical. Standard recovery diodes are suitable for lower-frequency rectification applications. If the application requires fast recovery characteristics, the HER603-TP specifications cannot be fully matched by the substitute parts.

Q: Are all these parts RoHS compliant?

A: Yes, all four parts—HER603-TP, 6A02-G, 6A02B-G, and GI752-E3/54—are ROHS3 compliant. All parts also have Moisture Sensitivity Level (MSL) of 1 (Unlimited) and REACH Unaffected status, meeting environmental and regulatory requirements for industrial and commercial applications.

Q: What is the operating temperature range difference between these parts?

A: The HER603-TP operates from -65°C to 150°C. The 6A02-G and 6A02B-G operate from -55°C to 125°C, representing a narrower range at both extremes. The GI752-E3/54 operates from -50°C to 150°C, matching the HER603-TP upper limit but with a higher minimum temperature. For applications requiring operation below -55°C, the HER603-TP or GI752-E3/54 are required. For applications requiring operation above 125°C, the HER603-TP or GI752-E3/54 are required.