RL201-TP General Purpose Rectifier Diode: Equivalent & Substitute Parts

Part Overview

The RL201-TP is a general purpose rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 2 A average rectified current in a DO-15 (DO-204AC) axial through-hole package. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design support and procurement continuity. The RL201-TP operates across a junction temperature range of -55°C to 150°C and complies with RoHS3 and REACH regulations.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1 V @ 2 A	V @ A
Speed	Standard Recovery >500ns, > 200mA (Io)	-
Current - Reverse Leakage @ Vr	5	µA @ 50 V
Mounting Type	Through Hole	-
Package / Case	DO-204AC, DO-15, Axial	-
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the RL201-TP is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 50 V (exact match required)
Current - Average Rectified (Io): 2 A (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: DO-204AC, DO-15, Axial (exact match required)
Current - Reverse Leakage @ Vr: 5 µA @ 50 V (exact match required)

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max) @ If: Substitute parts must not exceed the specified forward voltage at rated current
Operating Temperature - Junction: Substitute parts must support the application temperature range or exceed it
Recovery Speed: Substitute parts may offer improved recovery characteristics (Fast Recovery ≤ 500ns) without compromising standard recovery applications
RoHS and REACH Compliance: All substitute parts must maintain regulatory compliance

Parts with reduced current ratings (1.5 A instead of 2 A) are classified as similar but not direct equivalents, as they cannot support the full 2 A specification of the RL201-TP.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V @ A]	Speed	Reverse Leakage @ Vr [µA]	Tj Range [°C]	Product Status	Packaging
RL201-TP	Micro Commercial Co	50	2	1 @ 2	Standard Recovery >500ns	5 @ 50 V	-55 to 150	Obsolete	DO-15
EGP20A-E3/54	Vishay General Semiconductor	50	2	0.95 @ 2	Fast Recovery ≤ 500ns	5 @ 50 V	-65 to 150	Active	DO-204AC (CT)
EGP20A	Fairchild Semiconductor	50	2	0.95 @ 2	Fast Recovery ≤ 500ns	5 @ 50 V	-65 to 150	Active	DO-15
EGP20A-E3/73	Vishay General Semiconductor	50	2	0.95 @ 2	Fast Recovery ≤ 500ns	5 @ 50 V	-65 to 150	Active	DO-204AC (DO-15)
GPP20A-E3/54	Vishay General Semiconductor	50	2	1.1 @ 2	Standard Recovery >500ns	5 @ 50 V	-55 to 150	Active	DO-204AC (TR)
SBYV27-50-E3/54	Vishay General Semiconductor	50	2	1.07 @ 3	Fast Recovery ≤ 500ns	5 @ 50 V	-55 to 150	Active	DO-204AC (CT)
SBYV27-50-E3/73	Vishay General Semiconductor	50	2	1.07 @ 3	Fast Recovery ≤ 500ns	5 @ 50 V	-55 to 150	Active	DO-204AC (DO-15)
UG2A-E3/54	Vishay General Semiconductor	50	2	0.95 @ 2	Fast Recovery ≤ 500ns	5 @ 50 V	-55 to 150	Active	DO-204AC (TR)
1N5391GP-E3/54	Vishay General Semiconductor	50	1.5	1.4 @ 1.5	Standard Recovery >500ns	5 @ 50 V	-65 to 175	Active	DO-204AC (TR)
GP15A-E3/54	Vishay General Semiconductor	50	1.5	1.1 @ 1.5	Standard Recovery >500ns	5 @ 50 V	-65 to 175	Active	DO-204AC (TR)
RGP15A-E3/54	Vishay General Semiconductor	50	1.5	1.3 @ 1.5	Fast Recovery ≤ 500ns	5 @ 50 V	-65 to 175	Active	DO-204AC (TR)

Engineering Selection Recommendations

Direct Equivalents (2 A Rating):

The following parts are direct functional equivalents to the RL201-TP, meeting all electrical and mechanical specifications:

EGP20A-E3/54 (Vishay): Active status, fast recovery characteristics, extended temperature range (-65°C to 150°C), RoHS3 and REACH compliant. Available in Cut Tape packaging with 1031 units in stock.
EGP20A (Fairchild Semiconductor): Active status, fast recovery characteristics, extended temperature range (-65°C to 150°C), REACH compliant. Available in Bulk packaging with 24,846 units in stock.
EGP20A-E3/73 (Vishay): Active status, fast recovery characteristics, extended temperature range (-65°C to 150°C), RoHS3 and REACH compliant. Available with 924 units in stock.
GPP20A-E3/54 (Vishay): Active status, standard recovery matching the RL201-TP, identical temperature range (-55°C to 150°C), RoHS3 and REACH compliant. Available in Tape & Reel packaging with 955 units in stock.
SBYV27-50-E3/54 (Vishay): Active status, fast recovery characteristics, identical temperature range (-55°C to 150°C), RoHS3 and REACH compliant. Available in Cut Tape packaging with 5,306 units in stock.
SBYV27-50-E3/73 (Vishay): Active status, fast recovery characteristics, identical temperature range (-55°C to 150°C), RoHS3 and REACH compliant. Available with 781 units in stock.
UG2A-E3/54 (Vishay): Active status, fast recovery characteristics, identical temperature range (-55°C to 150°C), RoHS3 and REACH compliant. Available in Tape & Reel packaging with 1,117 units in stock.

Similar Parts (1.5 A Rating):

The following parts share the same 50 V reverse voltage and DO-15 package but are rated for 1.5 A average rectified current. These are suitable only for applications where the maximum current requirement does not exceed 1.5 A:

1N5391GP-E3/54 (Vishay): Active status, standard recovery, extended temperature range (-65°C to 175°C), RoHS3 and REACH compliant.
GP15A-E3/54 (Vishay): Active status, standard recovery, extended temperature range (-65°C to 175°C), RoHS3 and REACH compliant.
RGP15A-E3/54 (Vishay): Active status, fast recovery, extended temperature range (-65°C to 175°C), RoHS3 and REACH compliant.

All substitute parts maintain RoHS3 compliance and REACH unaffected status, ensuring regulatory continuity with the obsolete RL201-TP.

Frequently Asked Questions (FAQ)

Q: Can I use a 1.5 A rated diode (such as GP15A-E3/54) as a substitute for the RL201-TP in my application?

A: Only if your circuit's maximum current requirement does not exceed 1.5 A. The RL201-TP is rated for 2 A average rectified current. Using a lower-rated part in a 2 A application will result in component failure or reduced reliability. Verify your actual circuit current draw before selecting a 1.5 A substitute.

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

A: Recovery speed refers to the reverse recovery time (trr), which is the time required for the diode to transition from forward conduction to reverse blocking. Fast recovery diodes (trr ≤ 500ns) switch more quickly, reducing switching losses and electromagnetic interference. Standard recovery diodes (trr > 500ns) are suitable for lower-frequency applications. The RL201-TP uses standard recovery; however, fast recovery substitutes (EGP20A-E3/54, SBYV27-50-E3/54, UG2A-E3/54) are backward compatible and will improve performance in switching applications.

Q: Are EGP20A-E3/54 and EGP20A electrically identical?

A: Both parts share identical electrical specifications: 50 V reverse voltage, 2 A current rating, 950 mV forward voltage at 2 A, and fast recovery characteristics. The primary difference is packaging: EGP20A-E3/54 is supplied in Cut Tape (CT), while EGP20A is supplied in Bulk. Both are active products with RoHS3 compliance.

Q: Does the extended temperature range of substitute parts affect compatibility?

A: No. The RL201-TP operates from -55°C to 150°C. Substitute parts with extended ranges (such as -65°C to 175°C) are fully compatible and provide additional design margin. Extended temperature capability does not introduce incompatibility; it only expands the operational envelope.

Q: What is the significance of the forward voltage difference between RL201-TP (1 V @ 2 A) and EGP20A (0.95 V @ 2 A)?

A: The lower forward voltage of EGP20A represents improved efficiency. At 2 A, EGP20A dissipates 50 mV less voltage drop than the RL201-TP, resulting in reduced power loss and heat generation. This is a beneficial characteristic and does not compromise compatibility.

Q: Can I substitute SBYV27-50-E3/54 if the forward voltage is specified at 3 A instead of 2 A?

A: Yes. The SBYV27-50-E3/54 datasheet specifies forward voltage at 3 A (1.07 V @ 3 A), which is a higher current test point than the RL201-TP specification (1 V @ 2 A). At the actual operating current of 2 A, the SBYV27-50-E3/54 forward voltage will be lower than the specified 1.07 V value, making it a suitable substitute. The specification at 3 A demonstrates the diode's capability at higher currents.

Q: What packaging options are available for direct equivalents?

A: Direct 2 A equivalents are available in the following packaging formats: Cut Tape (CT) — EGP20A-E3/54, SBYV27-50-E3/54; Tape & Reel (TR) — GPP20A-E3/54, UG2A-E3/54; Bulk — EGP20A. All maintain the DO-15 (DO-204AC) axial through-hole form factor. Select packaging based on your procurement and assembly requirements.

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts listed are RoHS3 compliant. The RL201-TP is also RoHS3 compliant. Regulatory compliance is maintained across all recommended substitutes.

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