Equivalent & Substitute Parts for 6A2 Diode

Part Overview

The 6A2 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. The part is classified as obsolete, making equivalent and substitute components necessary for ongoing system support and new design implementations. This reference provides direct substitutes, upgrades, and similar alternatives based on electrical and mechanical compatibility parameters.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	6	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 6 A	mV
Current - Reverse Leakage @ Vr	10	µA @ 200 V
Speed	Standard Recovery >500ns, > 200mA (Io)	-
Mounting Type	Through Hole	-
Package / Case	R-6, Axial	-
Operating Temperature - Junction	-55 to 125	°C

Substitute Part Grouping Explanation

Substitution of the 6A2 diode is determined by the following critical parameters:

Electrical Compatibility Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 200 V
Current - Average Rectified (Io): Must equal or exceed 6 A
Voltage - Forward (Vf) (Max) @ If: Must not significantly exceed 950 mV @ 6 A
Current - Reverse Leakage @ Vr: Must not exceed 10 µA @ 200 V
Speed: Standard Recovery >500ns, > 200mA (Io)

Mechanical Compatibility Criteria:

Mounting Type: Through Hole
Package / Case: R-6 Axial or equivalent axial configuration
Operating Temperature Range: Must support -55°C to 125°C minimum

Compliance Criteria:

RoHS Status: ROHS3 Compliant preferred for new designs
REACH Status: REACH Unaffected
Product Status: Active status preferred; Not For New Designs acceptable for legacy support

Substitute parts are grouped into three categories: Direct Substitutes (identical electrical and mechanical specifications with packaging variations), Upgrade Options (enhanced electrical performance or compliance), and Similar Alternatives (equivalent electrical performance with different package types).

Parameter Comparison

Part Number	Manufacturer	Category	Vr (Max) V	Io A	Vf (Max) mV @ If	Ir @ Vr µA	Package	Mounting	Temp Range °C	Product Status	RoHS
6A2	Micro Commercial Co	Diodes, Rectifiers	200	6	950 @ 6A	10 @ 200V	R-6, Axial	Through Hole	-55 to 125	Obsolete	Non-compliant
6A2-TP	Micro Commercial Co	Diodes, Rectifiers	200	6	950 @ 6A	10 @ 200V	R-6, Axial	Through Hole	-55 to 125	Not For New Designs	ROHS3 Compliant
1N5550	Solid State Inc.	Diodes, Rectifiers	200	3	1000 @ 3A	1 @ 200V	Axial	Through Hole	-65 to 200	Active	ROHS3 Compliant
GI752-E3/54	Vishay General Semiconductor	Diodes, Rectifiers	200	6	900 @ 6A	5 @ 200V	P600, Axial	Through Hole	-50 to 150	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical and Mechanical Specifications):

The 6A2-TP from Micro Commercial Co is the direct substitute for the obsolete 6A2. Both parts maintain identical electrical ratings: 200 V reverse voltage, 6 A average rectified current, 950 mV forward voltage drop at 6 A, and 10 µA reverse leakage current at 200 V. The 6A2-TP is packaged in Cut Tape format and carries ROHS3 compliance, making it suitable for legacy system support. Product status is listed as Not For New Designs, indicating this part is in transition but remains available for existing applications.

For Active Production and New Designs:

The GI752-E3/54 from Vishay General Semiconductor is recommended as the primary alternative for new designs. This part meets or exceeds all electrical requirements: 200 V reverse voltage, 6 A average rectified current, 900 mV forward voltage (improved over the original 950 mV), and 5 µA reverse leakage current (superior to the original 10 µA). The GI752-E3/54 is in Active product status, ROHS3 compliant, and available in high inventory quantities. The P600 axial package provides mechanical compatibility with through-hole mounting applications.

For Current-Limited Applications:

The 1N5550 from Solid State Inc. is suitable only for applications where the 6 A current requirement can be reduced to 3 A. This part provides 200 V reverse voltage rating and Active product status with ROHS3 compliance. The extended operating temperature range (-65°C to 200°C) offers thermal margin beyond the original 6A2 specification. Use of the 1N5550 requires circuit redesign to accommodate the reduced current capacity.

Compliance Considerations:

All recommended substitutes carry ROHS3 compliance and REACH Unaffected status. The original 6A2 is RoHS non-compliant; transition to compliant alternatives is necessary for regulatory adherence in new manufacturing.

Frequently Asked Questions (FAQ)

Q: Can the 6A2-TP be used as a direct replacement for the obsolete 6A2?

A: Yes. The 6A2-TP maintains identical electrical specifications (200 V, 6 A, 950 mV forward voltage, 10 µA reverse leakage) and mechanical configuration (R-6 axial, through-hole mounting). The primary difference is packaging format (Cut Tape vs. bulk) and improved RoHS compliance status. No circuit modifications are required.

Q: Why is the GI752-E3/54 recommended over the 6A2-TP for new designs?

A: The GI752-E3/54 is in Active product status, ensuring long-term availability and supply chain stability. The 6A2-TP is marked Not For New Designs, indicating planned discontinuation. Additionally, the GI752-E3/54 offers improved electrical performance with lower forward voltage (900 mV vs. 950 mV) and reduced reverse leakage current (5 µA vs. 10 µA), resulting in lower power dissipation and improved reliability.

Q: Is the 1N5550 a suitable substitute?

A: The 1N5550 is electrically compatible for voltage rating (200 V) but is limited to 3 A average rectified current, compared to the 6 A requirement of the original 6A2. Use of the 1N5550 requires circuit redesign and is only appropriate for applications where current demand can be reduced. For full 6 A operation, the 1N5550 is not suitable.

Q: What are the package differences between the 6A2, 6A2-TP, and GI752-E3/54?

A: All three parts use axial through-hole packages suitable for PCB mounting. The 6A2 and 6A2-TP both use the R-6 axial package. The GI752-E3/54 uses the P600 axial package. Both R-6 and P600 are standard axial configurations with compatible lead spacing and mounting procedures. No mechanical redesign is required when substituting between these parts.

Q: Are there MOSFET alternatives to the 6A2 diode?

A: The ZXMN6A25DN8TA, ZXMN6A25KTC, ZXMN6A25N8TA, and ZXMN6A25GTA are MOSFET devices from Diodes Incorporated, not direct diode substitutes. These parts operate on fundamentally different principles (active switching vs. passive rectification) and require different circuit topologies. MOSFETs are not suitable replacements for rectifier diode applications without complete circuit redesign.

Q: What is the inventory status of substitute parts?

A: The 6A2-TP has 3,110 pieces in stock. The GI752-E3/54 has 1,790 pieces in stock. The 1N5550 has 12,566 pieces in stock. All substitute parts are available for immediate procurement.

Q: Do all substitute parts meet RoHS compliance?

A: Yes. The 6A2-TP, GI752-E3/54, and 1N5550 are all ROHS3 compliant. The original 6A2 is RoHS non-compliant. Transition to compliant alternatives is required for new manufacturing and regulatory adherence.

Q: What is the operating temperature range for each substitute?

A: The 6A2-TP maintains the original range of -55°C to 125°C. The GI752-E3/54 supports -50°C to 150°C, providing 25°C additional margin at the upper temperature limit. The 1N5550 offers the widest range at -65°C to 200°C. Selection depends on thermal requirements of the application.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message