PR1504G-T Equivalent & Substitute Parts

Part Overview

The PR1504G-T is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 400 V DC reverse voltage and 1.5 A average rectified current in a DO-15 through-hole package. This part is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement continuity. The diode features fast recovery characteristics with a reverse recovery time of 150 ns, suitable for standard rectification applications requiring moderate switching speeds.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	400 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1.5 A
Speed Classification	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Reverse Recovery Time (trr)	150 ns
Current - Reverse Leakage @ Vr	5 µA @ 400 V
Package / Case	DO-204AC, DO-15, Axial
Mounting Type	Through Hole
Operating Temperature - Junction	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the PR1504G-T is determined by matching the following critical electrical and mechanical parameters:

Primary Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 1.5 A
Package / Case: DO-204AC, DO-15, Axial (through-hole)
Mounting Type: Through Hole

Secondary Compatibility Factors:

Forward voltage (Vf) within acceptable operating range
Reverse recovery time (trr) and speed classification
Reverse leakage current characteristics
Operating temperature range
RoHS3 compliance and regulatory status

Substitute parts are grouped into two categories based on electrical performance characteristics:

Category A - Fast Recovery Diodes (trr ≤ 500 ns): Parts maintaining the original fast recovery specification, suitable for applications requiring rapid switching response.

Category B - Standard Recovery Diodes (trr > 500 ns): Parts with slower recovery characteristics, applicable to designs where switching speed is not critical and forward voltage performance is prioritized.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Speed / trr	Package	Temp Range	Status
PR1504G-T	Diodes Incorporated	400 V	1.5 A	1.3 V @ 1.5 A	Fast Recovery / 150 ns	DO-15	-65°C ~ 150°C	Obsolete
FR154GP-AP	Micro Commercial Co	400 V	1.5 A	1.3 V @ 1.5 A	Fast Recovery / 150 ns	DO-15	-55°C ~ 150°C	Active
FR154GP-TP	Micro Commercial Co	400 V	1.5 A	1.3 V @ 1.5 A	Fast Recovery / 150 ns	DO-15	-55°C ~ 150°C	Active
RGP15G-E3/54	Vishay General Semiconductor - Diodes Division	400 V	1.5 A	1.3 V @ 1.5 A	Fast Recovery / 150 ns	DO-15	-65°C ~ 175°C	Active
1N5395-E3/54	Vishay General Semiconductor - Diodes Division	400 V	1.5 A	1.4 V @ 1.5 A	Standard Recovery / 2 µs	DO-41	-50°C ~ 150°C	Active
1N5395-E3/73	Vishay General Semiconductor - Diodes Division	400 V	1.5 A	1.4 V @ 1.5 A	Standard Recovery / 2 µs	DO-41	-50°C ~ 150°C	Active
1N5395GP-E3/54	Vishay General Semiconductor - Diodes Division	400 V	1.5 A	1.4 V @ 1.5 A	Standard Recovery / 2 µs	DO-15	-65°C ~ 175°C	Active
1N5617GP-E3/73	Vishay General Semiconductor - Diodes Division	400 V	1 A	1.2 V @ 1 A	Fast Recovery / 150 ns	DO-15	-65°C ~ 175°C	Active
GP15G-E3/54	Vishay General Semiconductor - Diodes Division	400 V	1.5 A	1.1 V @ 1.5 A	Standard Recovery / 3.5 µs	DO-15	-65°C ~ 175°C	Active
GP15G-E3/73	Vishay General Semiconductor - Diodes Division	400 V	1.5 A	1.1 V @ 1.5 A	Standard Recovery / 3.5 µs	DO-15	-65°C ~ 175°C	Active

Engineering Selection Recommendations

Direct Replacement (Electrical and Mechanical Equivalence):

The FR154GP-AP and FR154GP-TP from Micro Commercial Co provide the closest electrical match to the PR1504G-T, maintaining identical voltage, current, forward voltage, and fast recovery characteristics. Both parts are active products with ROHS3 compliance. The FR154GP-AP is supplied in standard packaging, while FR154GP-TP is supplied in Tape & Reel format for automated assembly. The operating temperature range is slightly reduced (-55°C to 150°C versus -65°C to 150°C), which is acceptable for most applications not requiring extended low-temperature operation.

Primary Substitute (Fast Recovery, DO-15 Package):

The RGP15G-E3/54 from Vishay General Semiconductor maintains fast recovery performance with identical electrical specifications and extends the operating temperature range to -65°C ~ 175°C. This part is supplied in Cut Tape packaging and offers superior temperature performance compared to the original part.

Alternative Substitute (DO-15 Package, Standard Recovery):

The 1N5395GP-E3/54 from Vishay General Semiconductor provides a DO-15 package equivalent with standard recovery characteristics. Forward voltage is slightly elevated at 1.4 V versus 1.3 V, and recovery time is extended to 2 µs. This part is suitable for applications where switching speed is not critical. Operating temperature range extends to -65°C ~ 175°C.

Secondary Alternatives (Different Package or Current Rating):

The 1N5395-E3/54 and 1N5395-E3/73 are supplied in DO-41 package format, requiring board layout modification. The 1N5617GP-E3/73 has a reduced current rating of 1 A and is suitable only for applications with lower current requirements.

Compliance and Regulatory Status:

All substitute parts listed are ROHS3 compliant and carry active product status. The FR154GP series and RGP15G-E3/54 are REACH Unaffected, while 1N5395 series parts are REACH Unaffected. All parts carry EAR99 ECCN classification and HTSUS code 8541.10.0080.

Frequently Asked Questions (FAQ)

Q: Can the FR154GP-AP directly replace the PR1504G-T without circuit modification?

A: Yes. The FR154GP-AP matches all critical electrical parameters: 400 V reverse voltage, 1.5 A average rectified current, 1.3 V forward voltage at 1.5 A, and fast recovery characteristics with 150 ns reverse recovery time. The DO-15 package is identical. The reduced operating temperature range (-55°C to 150°C versus -65°C to 150°C) is acceptable unless the application requires operation below -55°C.

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

A: Fast recovery diodes (trr ≤ 500 ns) switch off more rapidly, reducing switching losses and enabling higher frequency operation. Standard recovery diodes (trr > 500 ns) have slower switching characteristics but typically exhibit lower forward voltage drop. The PR1504G-T is a fast recovery device. Substitutes like GP15G-E3/54 and 1N5395-E3/54 use standard recovery technology and are suitable only if the application does not require fast switching response.

Q: Why are some substitutes supplied in DO-41 package instead of DO-15?

A: The 1N5395-E3/54 and 1N5395-E3/73 are supplied in DO-204AL (DO-41) package, which has a different physical form factor than the DO-204AC (DO-15) package. DO-41 diodes have longer leads and different spacing, requiring board layout modification. These parts are listed as alternatives only when DO-15 equivalents are unavailable.

Q: Is the 1N5617GP-E3/73 a suitable substitute?

A: The 1N5617GP-E3/73 is not a direct substitute due to reduced current rating (1 A versus 1.5 A). This part is suitable only for applications with maximum current requirements of 1 A or less. It maintains fast recovery characteristics and offers superior temperature range (-65°C ~ 175°C).

Q: What packaging options are available for the recommended substitutes?

A: FR154GP-AP is supplied in standard packaging. FR154GP-TP is supplied in Tape & Reel (TR) format for automated pick-and-place assembly. RGP15G-E3/54 is supplied in Cut Tape (CT) format. GP15G-E3/54 and GP15G-E3/73 are supplied in Cut Tape and standard packaging respectively. Selection depends on assembly method and volume requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification. The original PR1504G-T is also ROHS3 compliant.

Q: What is the difference between FR154GP-AP and FR154GP-TP?

A: Both parts are electrically identical with matching specifications. The primary difference is packaging: FR154GP-AP is supplied in standard packaging suitable for manual or tube-based assembly, while FR154GP-TP is supplied in Tape & Reel format optimized for automated assembly equipment.

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