Equivalent & Substitute Parts for 6A05-TP

Part Overview

The 6A05-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 6 A average rectified current in an R-6 axial through-hole package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identification of equivalent and substitute parts is necessary to support existing applications, legacy system maintenance, and design transitions to active product alternatives.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	6	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 6 A	mV
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	10	µA @ 50 V
Mounting Type	Through Hole	—
Package / Case	R-6, Axial	—
Operating Temperature - Junction	-55°C ~ 125°C	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the 6A05-TP is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 50 V minimum
Current - Average Rectified (Io): 6 A minimum
Mounting Type: Through Hole
Recovery Speed: Standard Recovery classification

Secondary Compatibility Factors:

Package / Case: R-6 axial preferred; P600 axial acceptable with mechanical verification
Forward Voltage (Vf): Operating point compatibility at rated current
Reverse Leakage: Functional equivalence within standard ranges
Operating Temperature Range: Application-dependent thermal requirements
RoHS Compliance: Environmental and regulatory alignment

Substitute parts are grouped into two categories:

Category A - Direct Electrical Equivalents (6 A, 50 V, Standard Recovery): Parts meeting all primary substitution criteria with identical or superior electrical performance and active product status.

Category B - Reduced Current Alternatives (Below 6 A, 50 V): Parts with lower current ratings that do not meet the full 6 A requirement and are listed for reference only; these require circuit re-evaluation and are not recommended for direct substitution.

Parameter Comparison

Parameter	6A05-TP (Main)	6A005B-G	GI750-E3/54	GI750-E3/73	1N5807	1N6076
Manufacturer	Micro Commercial Co	Comchip Technology	Vishay General Semiconductor	Vishay General Semiconductor	Microchip Technology	Microchip Technology
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V	50 V	50 V	50 V
Current - Average Rectified (Io)	6 A	6 A	6 A	6 A	3 A	1.3 A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 6 A	1 V @ 6 A	900 mV @ 6 A	900 mV @ 6 A	875 mV @ 4 A	1.76 V @ 18.8 A
Speed	Standard Recovery >500ns	Standard Recovery >500ns	Standard Recovery >500ns	Standard Recovery >500ns	Fast Recovery ≤500ns	Fast Recovery ≤500ns
Current - Reverse Leakage @ Vr	10 µA @ 50 V	10 µA @ 50 V	5 µA @ 50 V	5 µA @ 50 V	5 µA @ 50 V	5 µA @ 50 V
Capacitance @ Vr, F	150pF @ 4V, 1MHz	100pF @ 4V, 1MHz	150pF @ 4V, 1MHz	150pF @ 4V, 1MHz	60pF @ 10V, 1MHz	—
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	R-6, Axial	R-6, Axial	P600, Axial	P600, Axial	B, Axial	A, Axial
Operating Temperature - Junction	-55°C ~ 125°C	-55°C ~ 125°C	-50°C ~ 150°C	-50°C ~ 150°C	-65°C ~ 175°C	-65°C ~ 155°C
Product Status	Not For New Designs	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	RoHS non-compliant

Engineering Selection Recommendations

Recommended Direct Substitutes (6 A, 50 V, Active Status):

6A005B-G (Comchip Technology) is the primary equivalent substitute. It matches the 6A05-TP in all critical electrical parameters: 50 V reverse voltage, 6 A average rectified current, standard recovery speed, and identical operating temperature range (-55°C ~ 125°C). The package is R-6 axial, providing mechanical compatibility. RoHS3 compliance is maintained. Forward voltage is marginally higher (1 V vs. 950 mV at 6 A), which is within acceptable tolerance for standard rectifier applications. Product status is Active, supporting long-term availability.

GI750-E3/54 and GI750-E3/73 (Vishay General Semiconductor) are functionally equivalent alternatives with superior electrical characteristics. Both provide 50 V reverse voltage and 6 A average rectified current with standard recovery speed. Forward voltage is lower (900 mV at 6 A), reducing power dissipation. Operating temperature range extends to 150°C, providing thermal margin. Package is P600 axial; mechanical fit requires verification against PCB layout and component spacing. Both are RoHS3 compliant and Active status. GI750-E3/73 has higher inventory availability (3145 pcs).

Not Recommended for Direct Substitution:

1N5807 (Microchip Technology) has reduced current rating (3 A vs. 6 A) and does not meet the full electrical specification. Fast recovery speed differs from the standard recovery classification of the 6A05-TP. RoHS non-compliance presents regulatory concerns. This part is suitable only for applications with lower current requirements.

1N6076 (Microchip Technology) has significantly reduced current rating (1.3 A vs. 6 A) and does not meet the electrical specification. Fast recovery speed and RoHS non-compliance further limit applicability. This part is not suitable for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can 6A005B-G directly replace 6A05-TP in existing designs?

A: Yes. 6A005B-G meets all critical electrical parameters: 50 V reverse voltage, 6 A average rectified current, standard recovery speed, and identical operating temperature range. The R-6 axial package provides mechanical compatibility. Forward voltage is 1 V at 6 A compared to 950 mV, a difference within acceptable tolerance for rectifier applications. RoHS3 compliance is maintained.

Q: What is the difference between the GI750-E3/54 and GI750-E3/73?

A: Both parts are electrically identical: 50 V reverse voltage, 6 A average rectified current, 900 mV forward voltage at 6 A, standard recovery speed, and -50°C ~ 150°C operating temperature. The difference is packaging designation and inventory availability. GI750-E3/73 has higher stock (3145 pcs vs. 1515 pcs). Both use P600 axial package and are RoHS3 compliant.

Q: Can I use GI750-E3/54 or GI750-E3/73 if my PCB is designed for R-6 package?

A: Package compatibility requires mechanical verification. GI750 parts use P600 axial package, which differs from R-6. Physical dimensions, lead spacing, and PCB footprint must be evaluated. If the P600 package fits the available space and lead holes align with the PCB layout, substitution is electrically valid. If not, 6A005B-G with R-6 package is the preferred alternative.

Q: Why are 1N5807 and 1N6076 listed as substitutes if they have lower current ratings?

A: These parts are listed in the provided substitute data but do not meet the full electrical specification of the 6A05-TP. 1N5807 is rated for 3 A and 1N6076 for 1.3 A, both below the 6 A requirement. They are included for reference in applications where circuit re-evaluation and current derating are acceptable. Direct substitution is not recommended.

Q: Does forward voltage difference affect circuit performance?

A: Forward voltage differences between 900 mV and 1 V at 6 A are minor and typically acceptable in rectifier applications. The voltage drop across the diode contributes to power dissipation and heat generation. Lower forward voltage (GI750 series at 900 mV) results in slightly lower power loss compared to 6A005B-G (1 V) or 6A05-TP (950 mV). For applications with tight thermal budgets, GI750 series offers marginal advantage. For standard applications, the difference is negligible.

Q: What is the significance of RoHS compliance status?

A: 6A05-TP, 6A005B-G, GI750-E3/54, and GI750-E3/73 are all RoHS3 compliant, meeting environmental and regulatory requirements for lead-free manufacturing. 1N5807 and 1N6076 are RoHS non-compliant, indicating they may contain restricted substances. For applications subject to RoHS regulations or customer requirements, only compliant alternatives should be selected.

Q: What is the operating temperature range consideration?

A: 6A05-TP operates from -55°C to 125°C. 6A005B-G matches this range exactly. GI750 series extends to 150°C, providing thermal margin for high-temperature environments. 1N5807 extends to 175°C and 1N6076 to 155°C. If the application operates near the upper limit of the 6A05-TP range, GI750 or Microchip alternatives offer additional thermal headroom. For standard temperature environments, all parts are functionally equivalent.

Q: Is packaging format important for substitution?

A: Yes. The 6A05-TP uses R-6 axial package. 6A005B-G also uses R-6, providing direct mechanical compatibility. GI750 series uses P600 axial package, which requires PCB layout verification. 1N5807 uses B axial and 1N6076 uses A axial, both differing from the original. If PCB footprint is fixed, R-6 package compatibility is mandatory. If PCB redesign is acceptable, alternative packages may be considered after mechanical verification.

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