R4000-TP Equivalent & Substitute Parts

Part Overview

The R4000-TP 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 identification of equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity. The part operates across a junction temperature range of -65°C to 150°C and maintains ROHS3 compliance.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	4000 V
Current - Average Rectified (Io)	200 mA
Voltage - Forward (Vf) (Max) @ If	5 V @ 200 mA
Current - Reverse Leakage @ Vr	5 µA @ 4000 V
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the R4000-TP is determined by equivalence in the following critical electrical parameters: DC reverse voltage rating (4000 V), reverse leakage current (5 µA @ 4000 V), and through-hole axial mounting configuration. The substitute part GI250-4-E3/54 meets these core electrical requirements while offering enhanced specifications in average rectified current (250 mA versus 200 mA) and improved forward voltage characteristics (3.5 V @ 250 mA versus 5 V @ 200 mA). Both parts maintain identical reverse voltage ratings and leakage current specifications, ensuring functional compatibility in applications designed for the R4000-TP.

The substitute part operates at an extended maximum junction temperature of 175°C compared to the original part's 150°C, providing additional thermal margin. Package compatibility is maintained through standard axial through-hole mounting, though the substitute uses DO-204AL (DO-41) packaging versus the original DO-15 specification. Both parts are ROHS3 compliant and carry identical ECCN and HTSUS classifications.

Parameter Comparison

Parameter	R4000-TP (Main Part)	GI250-4-E3/54 (Substitute)
Manufacturer	Micro Commercial Co	Vishay General Semiconductor - Diodes Division
Voltage - DC Reverse (Vr) (Max)	4000 V	4000 V
Current - Average Rectified (Io)	200 mA	250 mA
Voltage - Forward (Vf) (Max) @ If	5 V @ 200 mA	3.5 V @ 250 mA
Current - Reverse Leakage @ Vr	5 µA @ 4000 V	5 µA @ 4000 V
Mounting Type	Through Hole	Through Hole
Package / Case	DO-204AC, DO-15, Axial	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 175°C
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The GI250-4-E3/54 serves as a direct functional substitute for the obsolete R4000-TP based on matched reverse voltage rating (4000 V) and reverse leakage current specification (5 µA @ 4000 V). The substitute part is currently in active production status with substantial inventory availability (75,400 pieces), ensuring supply chain continuity compared to the obsolete original part (898 pieces remaining).

Both parts maintain ROHS3 compliance and identical regulatory classifications (ECCN: EAR99, HTSUS: 8541.10.0070), supporting equivalent environmental and export compliance requirements. The substitute part's extended operating temperature range (-65°C to 175°C versus -65°C to 150°C) and improved forward voltage characteristics provide additional design margin without introducing incompatibility.

Physical mounting compatibility is maintained through axial through-hole configuration, though PCB layout verification is required to confirm mechanical fit between DO-15 and DO-204AL (DO-41) package geometries. The substitute part's higher current rating (250 mA versus 200 mA) and lower forward voltage drop support applications with identical or reduced power dissipation requirements.

Frequently Asked Questions (FAQ)

Q: Can the GI250-4-E3/54 directly replace the R4000-TP in existing designs?

A: The GI250-4-E3/54 provides electrical equivalence based on matched reverse voltage (4000 V) and reverse leakage current (5 µA @ 4000 V) specifications. Physical package differences between DO-15 and DO-204AL (DO-41) require verification of PCB footprint compatibility and lead spacing before implementation.

Q: What are the key electrical differences between these parts?

A: The substitute part offers higher average rectified current (250 mA versus 200 mA), lower forward voltage drop (3.5 V @ 250 mA versus 5 V @ 200 mA), and extended maximum junction temperature (175°C versus 150°C). Reverse voltage and leakage current specifications remain identical.

Q: Why is the R4000-TP classified as obsolete?

A: The R4000-TP is listed as obsolete by the manufacturer. The GI250-4-E3/54 substitute is actively produced and stocked, providing long-term availability for applications requiring 4000 V rectifier diodes.

Q: Are there compliance or regulatory differences between the parts?

A: Both parts maintain ROHS3 compliance, identical ECCN classification (EAR99), and matching HTSUS codes (8541.10.0070). Moisture sensitivity levels are equivalent (MSL 1 - Unlimited).

Q: What package considerations apply to substitution?

A: The original R4000-TP uses DO-15 axial packaging, while the substitute GI250-4-E3/54 uses DO-204AL (DO-41) axial packaging. Both are through-hole axial configurations, but physical dimensions and lead spacing differ. PCB layout and mechanical clearance verification is required.

Q: Does the substitute part's higher current rating affect circuit operation?

A: The higher current rating (250 mA) of the substitute part does not negatively affect circuits designed for 200 mA operation. The substitute part operates within the same voltage class and maintains identical reverse leakage characteristics, supporting direct functional substitution in current-limited applications.

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