RL255-TP Equivalent & Substitute Parts

Part Overview

The RL255-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 600 V DC reverse voltage and 2.5 A average rectified current in an R-3 axial through-hole package. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design support and procurement continuity. The RL255-TP remains available in inventory but is no longer in active production status.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	2.5 A
Voltage - Forward (Vf) (Max) @ If	1 V @ 2.5 A
Speed	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	5 µA @ 600 V
Mounting Type	Through Hole
Package / Case	R-3, Axial
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the RL255-TP is determined by electrical and mechanical parameter equivalence within the general-purpose rectifier diode category. The following parameters establish substitution validity:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 2.5 A
Mounting Type: Through Hole
Package / Case: R-3, Axial
Operating Temperature Range: -55°C ~ 150°C
Recovery Speed Classification: Standard Recovery >500ns, > 200mA (Io)

Allowable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Within standard rectifier diode tolerance
Current - Reverse Leakage @ Vr: Within standard rectifier diode tolerance
Capacitance @ Vr, F: Within standard rectifier diode tolerance
Packaging Format: Bulk or Tape & Reel (TR) formats are interchangeable for the same electrical device

The RL255GP-TP meets all critical matching parameters and is classified as an active equivalent substitute for the obsolete RL255-TP.

Parameter Comparison

Parameter	RL255-TP (Main Part)	RL255GP-TP (Substitute)
Manufacturer	Micro Commercial Co	Micro Commercial Co
Category	Diodes, Rectifiers	Diodes, Rectifiers
Product Status	Obsolete	Active
Voltage - DC Reverse (Vr) (Max)	600 V	600 V
Current - Average Rectified (Io)	2.5 A	2.5 A
Voltage - Forward (Vf) (Max) @ If	1 V @ 2.5 A	1.1 V @ 2.5 A
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	5 µA @ 600 V	5 µA @ 600 V
Capacitance @ Vr, F	35 pF @ 4V, 1MHz	40 pF @ 4V, 1MHz
Mounting Type	Through Hole	Through Hole
Package / Case	R-3, Axial	R-3, Axial
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The RL255GP-TP is the direct active equivalent substitute for the obsolete RL255-TP. Both components are manufactured by Micro Commercial Co and share identical electrical ratings for reverse voltage (600 V), average rectified current (2.5 A), and thermal operating range (-55°C ~ 150°C). Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current design implementations.

The RL255GP-TP differs from the RL255-TP only in product status (active versus obsolete) and minor parameter variations within standard rectifier diode tolerances: forward voltage increases by 0.1 V (1 V to 1.1 V @ 2.5 A) and capacitance increases by 5 pF (35 pF to 40 pF @ 4V, 1MHz). These variations remain within acceptable engineering tolerances for general-purpose rectification applications.

The primary distinction is packaging format: the RL255-TP is supplied in bulk form, while the RL255GP-TP is supplied in Tape & Reel (TR) format. Both formats contain identical electrical devices in R-3 axial through-hole packages and are mechanically and electrically interchangeable in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the RL255GP-TP directly replace the RL255-TP in existing designs?

A: Yes. The RL255GP-TP is electrically and mechanically equivalent to the RL255-TP. Both components share identical voltage ratings (600 V), current ratings (2.5 A), package type (R-3 axial), and mounting method (through-hole). Minor parameter variations (forward voltage and capacitance) fall within standard rectifier diode tolerances and do not affect functional compatibility.

Q: What is the difference between the bulk and Tape & Reel packaging formats?

A: The RL255-TP is supplied in bulk packaging, while the RL255GP-TP is supplied in Tape & Reel (TR) format. Both formats contain the same electrical component. Tape & Reel format is standard for automated assembly processes, while bulk format is used for manual assembly or lower-volume applications. The electrical device itself is identical.

Q: Why is the RL255-TP classified as obsolete?

A: The RL255-TP is no longer in active production. The RL255GP-TP is the active production equivalent. For new designs or ongoing procurement, the RL255GP-TP should be specified to ensure supply chain continuity and access to current inventory.

Q: Are there compliance differences between the RL255-TP and RL255GP-TP?

A: No. Both components are ROHS3 compliant and REACH unaffected. Regulatory compliance is identical between the two parts.

Q: What is the significance of the forward voltage difference (1 V versus 1.1 V)?

A: The forward voltage difference of 0.1 V at 2.5 A is within standard rectifier diode manufacturing tolerance. This variation does not affect circuit functionality in general-purpose rectification applications and does not require design modification.

Q: Can the RL255GP-TP be used in high-frequency switching applications?

A: Both the RL255-TP and RL255GP-TP are classified as standard recovery rectifiers with recovery time >500 ns at >200 mA. These components are designed for general-purpose rectification and are not suitable for high-frequency switching applications requiring fast recovery times.

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