R4000F-AP Equivalent & Substitute Parts

Part Overview

The R4000F-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 4000 V DC reverse voltage with 200 mA average rectified current in a DO-15 axial through-hole package. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part operates across a junction temperature range of -65°C to 150°C and complies with ROHS3 standards.

Substiute Parts

R4000F-AP

Micro Commercial CoIn Stock: 1150R4000F-AP Datasheet

Current PartRFQ

GI250-4-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 75433GI250-4-E3/54 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the R4000F-AP is determined by the following critical electrical and mechanical parameters:

Voltage Rating: The substitute must maintain the 4000 V DC reverse voltage specification to ensure equivalent circuit protection and isolation capability.

Current Rating: The substitute must support at least 200 mA average rectified current. Higher current ratings are acceptable as they provide operational margin.

Package Type: The substitute must use through-hole axial mounting to ensure mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Reverse Leakage: The substitute must not exceed 5 µA @ 4000 V to maintain equivalent leakage characteristics.

Temperature Range: The substitute must cover the operating junction temperature range of -65°C to 150°C or extend it.

Compliance: The substitute must maintain ROHS3 compliance for regulatory equivalence.

The GI250-4-E3/54 meets all these criteria with equivalent or superior electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The GI250-4-E3/54 is the direct substitute for the obsolete R4000F-AP. Both components share identical voltage and reverse leakage specifications, with the substitute offering superior current capacity (250 mA versus 200 mA) and extended operating temperature range (-65°C to 175°C versus -65°C to 150°C). Both parts maintain ROHS3 compliance and unlimited moisture sensitivity classification.

The substitute is currently in active production status with substantial inventory availability (75,400 pieces), ensuring supply chain continuity. The axial through-hole package configuration remains compatible with existing PCB designs, though physical package dimensions between DO-15 and DO-41 variants should be verified for mechanical fit in space-constrained applications.

The lower forward voltage drop of the GI250-4-E3/54 (3.5 V @ 250 mA versus 6.5 V @ 200 mA) represents improved thermal efficiency in the substitute design, reducing power dissipation in high-frequency or continuous-duty applications.

Frequently Asked Questions (FAQ)

Q: Can the GI250-4-E3/54 directly replace the R4000F-AP in all applications?

A: The GI250-4-E3/54 meets all critical electrical specifications for substitution: identical 4000 V reverse voltage rating, equal reverse leakage current, and higher current capacity. Both use through-hole axial mounting. Physical package dimensions (DO-15 versus DO-41) should be confirmed for mechanical fit in the specific application.

Q: What is the significance of the different reverse recovery times (500 ns versus 2 µs)?

A: The R4000F-AP exhibits faster reverse recovery (500 ns), classified as small signal speed. The GI250-4-E3/54 has standard recovery (2 µs) for currents above 200 mA. This difference affects switching transient behavior in high-frequency circuits but does not prevent substitution in standard rectification applications.

Q: Why is the forward voltage drop lower in the substitute part?

A: The GI250-4-E3/54 demonstrates improved semiconductor design with lower forward voltage (3.5 V @ 250 mA) compared to the R4000F-AP (6.5 V @ 200 mA). This reflects advances in diode technology and results in reduced power dissipation and heat generation during operation.

Q: Are there package compatibility concerns between DO-15 and DO-41?

A: Both packages are axial through-hole configurations suitable for PCB mounting. DO-41 is the industry standard designation for the DO-204AL package used in the GI250-4-E3/54. Physical lead spacing and body dimensions differ between DO-15 and DO-41, requiring verification of fit within the specific PCB layout and component spacing constraints.

Q: Do both parts meet the same regulatory and compliance standards?

A: Both the R4000F-AP and GI250-4-E3/54 are ROHS3 compliant with MSL classification of 1 (Unlimited). The substitute carries REACH Unaffected status. Both share identical ECCN (EAR99) and HTSUS (8541.10.0070) classifications for export and tariff purposes.

Q: What is the inventory status difference between these parts?

A: The R4000F-AP is obsolete with 1,076 pieces remaining in stock. The GI250-4-E3/54 is in active production with 75,400 pieces available, ensuring long-term supply availability for new designs and ongoing production requirements.