RL202-BP Equivalent & Substitute Parts

Part Overview

The RL202-BP is a through-hole rectifier diode manufactured by Micro Commercial Co, rated for 100 V DC reverse voltage and 2 A average rectified current in a DO-15 (DO-204AC) axial 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 for design continuity, legacy system maintenance, and component sourcing in applications where the RL202-BP is no longer available from primary inventory channels.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1 V @ 2 A	V @ A
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Mounting Type	Through Hole	—
Package / Case	DO-204AC, DO-15, Axial	—
Operating Temperature - Junction	-55 to 150	°C
Speed Classification	Standard Recovery >500ns	—

Substitute Part Grouping Explanation

Substitute parts for the RL202-BP are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Mandatory Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Package / Case: DO-204AC or DO-15 axial configuration
Mounting Type: Through Hole
Operating Temperature Range: Must encompass or exceed -55°C to 150°C

Secondary Compatibility Factors:

Current - Average Rectified (Io): Rated current must equal or exceed 2 A
Voltage - Forward (Vf): Forward voltage drop at rated current
Current - Reverse Leakage: Leakage characteristics at maximum reverse voltage
Recovery Speed: Standard or faster recovery characteristics

The identified substitute parts meet the mandatory criteria. However, current ratings differ from the main part specification, requiring circuit-level evaluation for applications with strict current requirements.

Parameter Comparison

Parameter	RL202-BP (Main)	FR152GHA0G	RGP15B-E3/54
Manufacturer	Micro Commercial Co	Taiwan Semiconductor Corporation	Vishay General Semiconductor
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V
Current - Average Rectified (Io)	2 A	1.5 A	1.5 A
Voltage - Forward (Vf) (Max) @ If	1 V @ 2 A	1.3 V @ 1.5 A	1.3 V @ 1.5 A
Current - Reverse Leakage @ Vr	5 µA @ 100 V	5 µA @ 100 V	5 µA @ 100 V
Speed Classification	Standard Recovery >500ns	Fast Recovery ≤500ns	Fast Recovery ≤500ns
Reverse Recovery Time (trr)	Not specified	150 ns	150 ns
Package / Case	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
Mounting Type	Through Hole	Through Hole	Through Hole
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-65 to 175°C
Product Status	Not For New Designs	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

FR152GHA0G (Taiwan Semiconductor Corporation): This substitute part maintains 100 V reverse voltage rating and identical reverse leakage characteristics. The device is rated for 1.5 A average rectified current, which is 25% lower than the RL202-BP specification. FR152GHA0G is AEC-Q101 qualified and ROHS3 compliant, indicating automotive-grade reliability and environmental compliance. The fast recovery characteristic (≤500ns, 150 ns trr) provides improved switching performance compared to the standard recovery RL202-BP. This part is suitable for applications where current demand does not exceed 1.5 A and where automotive-grade qualification is beneficial.

RGP15B-E3/54 (Vishay General Semiconductor - Diodes Division): This substitute part is rated for 100 V reverse voltage with identical reverse leakage performance. Current rating is 1.5 A, matching the FR152GHA0G specification. RGP15B-E3/54 features fast recovery characteristics (≤500ns, 150 ns trr) and operates across an extended temperature range of -65°C to 175°C, exceeding the RL202-BP operating window. The device is ROHS3 compliant and carries the SUPERECTIFIER® series designation. This part is suitable for applications requiring extended temperature performance and where current demand does not exceed 1.5 A.

Both substitute parts are active products with current manufacturing status, ensuring long-term availability and supply chain stability compared to the RL202-BP end-of-life status.

Frequently Asked Questions (FAQ)

Q: Can FR152GHA0G or RGP15B-E3/54 directly replace RL202-BP in all applications?

A: Direct replacement is possible only in applications where the circuit current demand does not exceed 1.5 A. Both substitute parts are rated for 1.5 A average rectified current, compared to the RL202-BP 2 A rating. Circuit analysis is required to confirm that peak and average current requirements remain within the 1.5 A limit of the substitute parts.

Q: What is the difference between standard recovery and fast recovery diodes?

A: The RL202-BP is specified as standard recovery with >500 ns recovery time. Both substitute parts are fast recovery devices with ≤500 ns recovery time and 150 ns reverse recovery time (trr). Fast recovery diodes exhibit lower reverse recovery current and shorter switching transients, resulting in reduced switching losses and improved high-frequency performance. This characteristic is beneficial in switching power supplies and high-frequency rectification circuits.

Q: Are the substitute parts physically compatible with RL202-BP footprints?

A: Yes. All three parts use the DO-204AC (DO-15) axial through-hole package. Physical dimensions and lead spacing are identical, allowing direct mechanical substitution on printed circuit boards designed for the RL202-BP.

Q: What is the significance of AEC-Q101 qualification on FR152GHA0G?

A: AEC-Q101 is an automotive electronics qualification standard. FR152GHA0G meets this qualification, indicating the device has undergone rigorous testing for reliability, temperature cycling, and environmental stress. This qualification is relevant for automotive applications and systems requiring automotive-grade component reliability.

Q: How do the operating temperature ranges compare?

A: The RL202-BP operates from -55°C to 150°C. FR152GHA0G maintains this identical range. RGP15B-E3/54 extends the range to -65°C to 175°C, providing 10°C additional margin at the low end and 25°C additional margin at the high end. For applications operating near the RL202-BP temperature limits, RGP15B-E3/54 offers improved thermal margin.

Q: What is the impact of forward voltage difference between RL202-BP and the substitute parts?

A: The RL202-BP specifies 1 V forward voltage at 2 A. Both substitute parts specify 1.3 V forward voltage at 1.5 A. At the 1.5 A operating point, the substitute parts exhibit higher forward voltage drop, resulting in increased power dissipation. For applications sensitive to forward voltage characteristics, thermal analysis of the substitute part is required.

Q: Are both substitute parts suitable for new designs?

A: Yes. Both FR152GHA0G and RGP15B-E3/54 carry "Active" product status, indicating they are suitable for new designs. The RL202-BP is marked "Not For New Designs," making the active substitute parts the appropriate choice for new circuit development.

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