PR3002-T Equivalent & Substitute Parts

Part Overview

The PR3002-T is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 100 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. The device features fast recovery characteristics with a reverse recovery time of 150 ns and operates across a junction temperature range of -65°C to 150°C.

This part is classified as obsolete, which necessitates identification of active equivalent and substitute components for ongoing production and maintenance applications. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating available packaging and manufacturing options.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 3 A	V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Mounting Type	Through Hole	—
Package / Case	DO-201AD, Axial	—
Operating Temperature - Junction	-65 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the PR3002-T is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 100 V
Current - Average Rectified (Io): Must equal or exceed 3 A
Mounting Type: Through Hole
Package / Case: DO-201AD or equivalent axial package

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max) @ If: Forward voltage drop at rated current
Speed Classification: Recovery time characteristics (Fast Recovery ≤ 500ns or Standard Recovery >500ns)
Reverse Recovery Time (trr): Switching speed performance
Current - Reverse Leakage @ Vr: Leakage current at rated reverse voltage
Operating Temperature - Junction: Thermal operating range
RoHS Status: Environmental compliance requirements

Substitute parts are grouped into two categories based on recovery speed characteristics: Fast Recovery devices (trr ≤ 500ns) and Standard Recovery devices (trr >500ns). The PR3002-T specifies Fast Recovery performance; however, Standard Recovery substitutes are included where electrical ratings are otherwise compatible, as recovery speed represents a performance enhancement rather than a functional requirement for general-purpose rectification applications.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	Speed	trr [ns]	Ir @ Vr [µA]	Package	Tj Range [°C]	Product Status	RoHS
PR3002-T	Diodes Incorporated	100	3	1.2 @ 3A	Fast Recovery ≤ 500ns	150	5 @ 100V	DO-201AD	-65 to 150	Obsolete	ROHS3
1N5186	Microchip Technology	100	3	1.5 @ 9A	Fast Recovery ≤ 500ns	150	2 @ 100V	B, Axial	-65 to 175	Active	Non-compliant
1N5401-E3/54	Vishay General Semiconductor	100	3	1.2 @ 3A	Standard Recovery >500ns	—	5 @ 100V	DO-201AD	-50 to 150	Active	ROHS3
1N5401-E3/73	Vishay General Semiconductor	100	3	1.2 @ 3A	Standard Recovery >500ns	—	5 @ 100V	DO-201AD	-50 to 150	Active	ROHS3
1N5401-G	Comchip Technology	100	3	0.95 @ 3A	Standard Recovery >500ns	—	5 @ 100V	DO-201AD	-65 to 125	Active	ROHS3
1N5401G	Good-Ark Semiconductor	100	3	1.1 @ 3A	Standard Recovery >500ns	—	5 @ 100V	DO-201AD	-55 to 150	Active	ROHS3
1N5401RLG	onsemi	100	3	1.0 @ 3A	Standard Recovery >500ns	—	10 @ 100V	DO-201AA, DO-27, Axial	-65 to 150	Not For New Designs	ROHS3
1N5416	Microchip Technology	100	3	1.5 @ 9A	Fast Recovery ≤ 500ns	150	1 @ 100V	B, Axial	-65 to 175	Active	Non-compliant
1N5804	Solid State Inc.	100	2.5	0.875 @ 1A	Fast Recovery ≤ 500ns	25	1 @ 100V	DO-204AP	-65 to 175	Active	ROHS3
1N6074	Microchip Technology	100	0.85	2.04 @ 9.4A	Fast Recovery ≤ 500ns	30	1 @ 100V	A, Axial	-65 to 155	Active	Non-compliant
GI501-E3/54	Vishay General Semiconductor	100	3	1.1 @ 9.4A	Standard Recovery >500ns	2000	5 @ 100V	DO-201AD	-50 to 150	Active	ROHS3

Engineering Selection Recommendations

Recommended Primary Substitutes (Electrical and Compliance Match):

1N5401-E3/54 (Vishay General Semiconductor) — Active product status. Identical voltage and current ratings. Matches forward voltage specification at rated current (1.2 V @ 3 A). DO-201AD package compatibility. ROHS3 compliant. Standard Recovery speed (>500ns) represents acceptable performance for general-purpose rectification. Operating temperature range -50°C to 150°C is suitable for most applications within the PR3002-T specification.
1N5401-E3/73 (Vishay General Semiconductor) — Active product status. Identical electrical specifications to 1N5401-E3/54. Functionally equivalent with alternative tape reel configuration. ROHS3 compliant.
1N5401-G (Comchip Technology) — Active product status. Meets voltage and current requirements. Forward voltage 0.95 V @ 3 A provides improved efficiency compared to PR3002-T. DO-201AD package. ROHS3 compliant. Operating temperature range -65°C to 125°C covers the lower end of PR3002-T specification.
1N5401G (Good-Ark Semiconductor) — Active product status. Meets all electrical requirements. Forward voltage 1.1 V @ 3 A. DO-201AD package. ROHS3 compliant. Operating temperature range -55°C to 150°C.
GI501-E3/54 (Vishay General Semiconductor) — Active product status. Identical voltage and current ratings. DO-201AD package. ROHS3 compliant. Forward voltage 1.1 V @ 9.4 A. Extended reverse recovery time (2 µs) indicates slower switching performance suitable for lower-frequency applications.

Secondary Substitutes (Current Rating Limitation or Compliance Consideration):

1N5804 (Solid State Inc.) — Active product status. Reduced current rating (2.5 A) below PR3002-T specification (3 A). Suitable only for applications with maximum current requirement not exceeding 2.5 A. DO-204AP package (different from DO-201AD). ROHS3 compliant. Fast Recovery performance with 25 ns reverse recovery time.

Not Recommended for New Designs:

1N5401RLG (onsemi) — Product status "Not For New Designs." Although electrically compatible, this designation indicates manufacturer discontinuation trajectory. Reverse leakage current (10 µA @ 100 V) exceeds PR3002-T specification (5 µA @ 100 V).

Unsuitable Substitutes (Current Rating Deficiency):

1N6074 (Microchip Technology) — Current rating 850 mA is insufficient for 3 A application requirement. Not suitable for direct substitution.

Compliance Considerations:

Parts 1N5186 and 1N5416 (Microchip Technology) are RoHS non-compliant, which may restrict use in applications requiring environmental compliance certification. These parts are electrically compatible but present regulatory constraints.

Frequently Asked Questions (FAQ)

Q: Can the PR3002-T be directly replaced with 1N5401-E3/54?

A: Yes. The 1N5401-E3/54 meets all critical electrical specifications: 100 V reverse voltage, 3 A average rectified current, and 1.2 V forward voltage at 3 A. Both use DO-201AD packaging. The primary difference is recovery speed classification (Standard Recovery vs. Fast Recovery), which does not prevent functional substitution in general-purpose rectification circuits. Both are ROHS3 compliant.

Q: What is the difference between Fast Recovery and Standard Recovery diodes?

A: Fast Recovery diodes have reverse recovery time (trr) of 500 ns or less, while Standard Recovery diodes exceed 500 ns. The PR3002-T specifies Fast Recovery with 150 ns trr. Standard Recovery substitutes (1N5401 series, GI501-E3/54) have longer recovery times, which may increase switching losses in high-frequency applications but are acceptable for line-frequency and low-frequency rectification. For applications operating above 10 kHz, Fast Recovery substitutes (1N5186, 1N5416) are preferred.

Q: Why do some substitute parts have different forward voltage specifications?

A: Forward voltage varies with measurement current. The PR3002-T specifies Vf at 3 A, while some substitutes provide Vf at different currents (e.g., 9 A or 9.4 A). At the rated 3 A operating point, forward voltage will be lower than the specified maximum. Substitutes with lower forward voltage (0.95 V to 1.1 V) provide improved efficiency. Substitutes with higher forward voltage (1.5 V) measured at higher current still meet the 1.2 V specification at 3 A.

Q: Can 1N5804 be used as a substitute?

A: 1N5804 is suitable only if the application maximum current requirement does not exceed 2.5 A. The PR3002-T is rated for 3 A; therefore, 1N5804 represents a current derating and is not a direct equivalent. Additionally, 1N5804 uses DO-204AP packaging rather than DO-201AD, requiring PCB layout modification.

Q: What is the significance of RoHS compliance status?

A: ROHS3 compliant parts (1N5401-E3/54, 1N5401-E3/73, 1N5401-G, 1N5401G, GI501-E3/54, 1N5804) meet European Union Restriction of Hazardous Substances regulations and are suitable for applications requiring environmental certification. RoHS non-compliant parts (1N5186, 1N5416) may be restricted in certain markets or applications. For new designs, ROHS3 compliant substitutes are recommended.

Q: Is 1N5401RLG a suitable substitute despite "Not For New Designs" status?

A: 1N5401RLG is electrically compatible but carries manufacturer designation "Not For New Designs," indicating planned discontinuation. While available in current inventory, this part should not be selected for new product development. Existing designs using this part may continue operation, but migration to active alternatives (1N5401-E3/54, 1N5401-G, 1N5401G) is recommended for long-term supply security.

Q: What packaging differences exist among substitute parts?

A: The PR3002-T uses DO-201AD (axial) packaging. Most substitutes (1N5401 series, GI501-E3/54) maintain DO-201AD compatibility. Microchip parts (1N5186, 1N5416) use "B, Axial" packaging, which is mechanically similar but may have dimensional variations. 1N5804 uses DO-204AP packaging, requiring PCB modification. 1N6074 uses "A, Axial" packaging. Verify PCB footprint compatibility before substitution when package designations differ.

Q: Which substitute offers the best thermal performance?

A: 1N5186 and 1N5416 (Microchip Technology) specify operating temperature range -65°C to 175°C, extending 25°C above the PR3002-T maximum (150°C). 1N5804 also reaches 175°C. These parts provide superior thermal margin for high-temperature applications. However, RoHS compliance status must be evaluated for regulatory requirements.

Q: Can multiple substitute parts be used interchangeably in the same design?

A: Yes, provided all electrical specifications are verified for the specific application. The 1N5401 series variants (1N5401-E3/54, 1N5401-E3/73, 1N5401-G, 1N5401G) and GI501-E3/54 are functionally interchangeable for general-purpose rectification. Differences in forward voltage (0.95 V to 1.2 V) and reverse leakage (5 µA to 10 µA) are within acceptable tolerance for most applications. Fast Recovery substitutes (1N5186, 1N5416) should not be mixed with Standard Recovery types in the same circuit if switching frequency performance is critical.

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