RL202-TP Equivalent & Substitute Parts

Part Overview

The RL202-TP is a general-purpose rectifier diode rated for 100 V DC reverse voltage and 2 A average rectified current in a DO-15 through-hole axial package. Manufactured by Micro Commercial Co, this component is classified as obsolete. Due to its obsolete status and limited availability relative to active alternatives, equivalent substitute parts are necessary for ongoing design support and production continuity. Active substitute diodes with identical or superior electrical characteristics are available from multiple manufacturers in compatible package configurations.

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
Operating Temperature - Junction	-55 to 150	°C
Mounting Type	Through Hole	—
Package / Case	DO-204AC, DO-15, Axial	—
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the RL202-TP are classified into three categories based on electrical and mechanical compatibility:

Direct Substitutes (Identical Electrical & Package Specifications)

Direct substitutes maintain the same voltage rating (100 V), current rating (2 A), reverse leakage (5 µA @ 100 V), and through-hole axial package configuration. These parts are functionally interchangeable with the RL202-TP. Direct substitutes include SBYV27-100-E3/73, UG2B-E3/54, and UG2B-E3/73 from Vishay General Semiconductor - Diodes Division. All direct substitutes are active products with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Upgrade Substitutes (Enhanced Performance, Same Electrical Ratings)

Upgrade substitutes meet or exceed the RL202-TP electrical specifications while offering improved performance characteristics. The EGP20B-E3/73 (Vishay) and EGP20B (Fairchild Semiconductor) are classified as upgrades due to faster recovery time (50 ns versus >500 ns for the original), lower forward voltage drop (950 mV @ 2 A), and extended junction temperature range (-65°C to 150°C). These parts are pin-compatible and package-compatible with the RL202-TP.

Similar Parts (Different Current Rating or Package)

Similar parts maintain the 100 V voltage rating and 2 A current rating but differ in technology type or package configuration. GP15B-E3/54 and GP15B-E3/73 are rated for 1.5 A (lower than the 2 A requirement) and use standard recovery technology. BYV27-100-TAP and BYV27-100-TR employ avalanche technology and use SOD-57 package instead of DO-15. These parts are not direct substitutes but may be considered for applications with reduced current requirements or where package alternatives are acceptable.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	Recovery Speed	Trr [ns]	Package	Status	Temp Range [°C]
RL202-TP	Micro Commercial Co	100	2	1.0 @ 2A	Standard >500ns	—	DO-15	Obsolete	-55 to 150
SBYV27-100-E3/73	Vishay	100	2	1.07 @ 3A	Fast ≤500ns	15	DO-204AC (DO-15)	Active	-55 to 150
UG2B-E3/54	Vishay	100	2	0.95 @ 2A	Fast ≤500ns	25	DO-204AC (DO-15)	Active	-55 to 150
UG2B-E3/73	Vishay	100	2	0.95 @ 2A	Fast ≤500ns	25	DO-204AC (DO-15)	Active	-55 to 150
EGP20B-E3/73	Vishay	100	2	0.95 @ 2A	Fast ≤500ns	50	DO-204AC (DO-15)	Active	-65 to 150
EGP20B	Fairchild Semiconductor	100	2	0.95 @ 2A	Fast ≤500ns	50	DO-15	Active	-65 to 150
EGP20B-E3/54	Vishay	100	2	0.95 @ 2A	Fast ≤500ns	50	DO-204AC (DO-15)	Active	-65 to 150
GP15B-E3/54	Vishay	100	1.5	1.1 @ 1.5A	Standard >500ns	3500	DO-204AC (DO-15)	Active	-65 to 175
GP15B-E3/73	Vishay	100	1.5	1.1 @ 1.5A	Standard >500ns	3500	DO-204AC (DO-15)	Active	-65 to 175
BYV27-100-TAP	Vishay	100	2	1.07 @ 3A	Fast ≤500ns	25	SOD-57	Active	-55 to 175
BYV27-100-TR	Vishay	100	2	1.07 @ 3A	Fast ≤500ns	25	SOD-57	Active	-55 to 175

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications)

Select SBYV27-100-E3/73, UG2B-E3/54, or UG2B-E3/73 when the RL202-TP must be replaced with functionally equivalent components. All three parts maintain 100 V reverse voltage, 2 A average rectified current, and DO-15 package compatibility. All are active products with ROHS3 compliance and MSL 1 rating. SBYV27-100-E3/73 provides the lowest reverse recovery time (15 ns) among direct substitutes. UG2B variants offer the lowest forward voltage drop (950 mV @ 2 A) and are available in higher quantities (3735 and 2200 units respectively).

For Performance Enhancement

Select EGP20B-E3/73, EGP20B-E3/54, or EGP20B when improved switching characteristics are acceptable. These upgrade parts maintain the 100 V and 2 A ratings while providing faster recovery time (50 ns) and lower forward voltage drop (950 mV @ 2 A). EGP20B-E3/73 offers the highest inventory availability (42,995 units) and extended junction temperature range (-65°C to 150°C). All upgrade parts are active products with ROHS3 compliance.

For Current-Limited Applications

Select GP15B-E3/54 or GP15B-E3/73 only when the application current requirement is 1.5 A or lower. These parts are not suitable for 2 A applications. Both maintain 100 V voltage rating and DO-15 package compatibility with extended junction temperature range (-65°C to 175°C).

For Package-Alternative Applications

Select BYV27-100-TAP or BYV27-100-TR only when SOD-57 package configuration is required or preferred. These avalanche-type diodes maintain 100 V and 2 A ratings but use different package geometry. BYV27-100-TR provides significantly higher inventory (21,905 units) compared to BYV27-100-TAP (1119 units).

Frequently Asked Questions (FAQ)

Q: Can SBYV27-100-E3/73 be used as a direct replacement for RL202-TP?

A: Yes. SBYV27-100-E3/73 maintains identical voltage (100 V), current (2 A), and package (DO-15) specifications. Both parts are through-hole axial diodes with 5 µA reverse leakage at 100 V. SBYV27-100-E3/73 is an active product with ROHS3 compliance, whereas RL202-TP is obsolete.

Q: What is the difference between UG2B-E3/54 and UG2B-E3/73?

A: Both parts are electrically identical with 100 V reverse voltage, 2 A current rating, 950 mV forward voltage drop, and 25 ns recovery time. The difference is packaging designation: UG2B-E3/54 is supplied in Cut Tape (CT) format with 3735 units in stock, while UG2B-E3/73 is supplied in bulk format with 2200 units in stock. Both use DO-204AC (DO-15) package.

Q: Why would I select EGP20B over UG2B if both have the same voltage and current ratings?

A: EGP20B offers faster recovery time (50 ns versus 25 ns) and lower forward voltage drop (950 mV @ 2 A). EGP20B also provides extended junction temperature range (-65°C to 150°C versus -55°C to 150°C). Selection depends on application requirements for switching speed and thermal performance. EGP20B-E3/73 has significantly higher inventory availability (42,995 units).

Q: Can GP15B-E3/54 replace RL202-TP?

A: No. GP15B-E3/54 is rated for 1.5 A average rectified current, which is below the RL202-TP 2 A specification. This part is suitable only for applications with maximum current requirement of 1.5 A. Voltage rating (100 V) and package (DO-15) are compatible, but current rating is insufficient.

Q: What is the difference between DO-15 and DO-204AC package designations?

A: DO-15 and DO-204AC refer to the same physical package configuration for axial through-hole diodes. DO-204AC is the formal JEDEC designation, while DO-15 is the legacy designation. Parts specified as DO-204AC (DO-15) are mechanically and electrically interchangeable with DO-15 parts.

Q: Are BYV27-100-TAP and BYV27-100-TR suitable replacements for RL202-TP?

A: BYV27 parts maintain 100 V voltage and 2 A current ratings but use SOD-57 package instead of DO-15. These are avalanche-type diodes rather than standard rectifiers. They are not pin-compatible with RL202-TP due to different package geometry. Selection requires physical board redesign or adapter solutions.

Q: What does ROHS3 compliance mean for these diode substitutes?

A: ROHS3 compliance indicates conformance to Restriction of Hazardous Substances Directive 3, which restricts use of lead, cadmium, mercury, hexavalent chromium, and certain brominated flame retardants. All active substitute parts listed are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: Which substitute part has the best availability?

A: EGP20B-E3/73 has the highest inventory with 42,995 units in stock. This part is an upgrade option offering improved performance characteristics (50 ns recovery time, 950 mV forward voltage drop) while maintaining 100 V and 2 A ratings in DO-15 package.

Q: What is the significance of reverse recovery time (Trr) in selecting a substitute?

A: Reverse recovery time affects switching speed and switching losses in rectifier applications. Faster recovery time (lower Trr value) reduces power dissipation and enables higher switching frequencies. RL202-TP has standard recovery (>500 ns). Direct substitutes offer faster recovery (15-25 ns), and upgrade parts offer even faster recovery (50 ns), providing improved efficiency in high-frequency applications.

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