PR6005-T Equivalent & Substitute Parts

Part Overview

The PR6005-T is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 600 V DC reverse voltage and 6 A average rectified current. The device features fast recovery characteristics with a reverse recovery time of 250 ns and is housed in an R-6 axial package for through-hole mounting applications. The PR6005-T is classified as obsolete, necessitating identification of active equivalent and substitute parts that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	6 A
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 6 A
Speed Classification	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Reverse Recovery Time (trr)	250 ns
Current - Reverse Leakage @ Vr	10 µA @ 600 V
Mounting Type	Through Hole
Package / Case	R-6, Axial
Operating Temperature - Junction	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the PR6005-T is determined by the following critical parameters:

Electrical Compatibility Requirements:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 600 V
Current - Average Rectified (Io): Must equal or exceed 6 A
Mounting Type: Must be Through Hole
Package compatibility: R-6 axial or equivalent through-hole axial packages

Performance Characteristics:

Recovery speed classification and reverse recovery time determine switching behavior in rectification circuits
Forward voltage drop affects power dissipation and thermal performance
Reverse leakage current impacts circuit performance in high-impedance applications

Compliance & Status:

RoHS3 compliance required for regulatory alignment
Product status (Active vs. Obsolete/Not For New Designs) influences long-term availability and design recommendations

Substitute parts are grouped into two categories: Direct Equivalents (matching all critical electrical and mechanical parameters with Active product status) and Functional Alternatives (meeting electrical requirements with acceptable parameter variations or alternative package configurations).

Parameter Comparison

Parameter	PR6005-T (Main)	1N5552	60S6-TP	6A6-TP	FR605GP-AP	FR605GP-TP	GI756-E3/73
Manufacturer	Diodes Inc.	Solid State Inc.	Micro Commercial Co	Micro Commercial Co	Micro Commercial Co	Micro Commercial Co	Vishay General Semiconductor
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	6 A	3 A	6 A	6 A	6 A	6 A	6 A
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 6 A	1 V @ 3 A	1 V @ 6 A	950 mV @ 6 A	1.3 V @ 6 A	1.3 V @ 6 A	900 mV @ 6 A
Speed Classification	Fast Recovery ≤ 500 ns	Standard Recovery > 500 ns	Standard Recovery > 500 ns	Standard Recovery > 500 ns	Fast Recovery ≤ 500 ns	Fast Recovery ≤ 500 ns	Standard Recovery > 500 ns
Reverse Recovery Time (trr)	250 ns	2 µs	Not specified	Not specified	250 ns	250 ns	2.5 µs
Current - Reverse Leakage @ Vr	10 µA @ 600 V	1 µA @ 600 V	5 µA @ 600 V	10 µA @ 600 V	10 µA @ 600 V	10 µA @ 600 V	5 µA @ 600 V
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	R-6, Axial	Axial	DO-201AD, Axial	R-6, Axial	R-6, Axial	R-6, Axial	P600, Axial
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 200°C	-55°C ~ 150°C	-55°C ~ 125°C	-55°C ~ 150°C	-55°C ~ 150°C	-50°C ~ 150°C
Product Status	Obsolete	Active	Active	Not For New Designs	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Electrical Compatibility):

FR605GP-AP and FR605GP-TP (Micro Commercial Co) are the preferred direct substitutes for the PR6005-T. Both devices match the 600 V / 6 A electrical specification, maintain fast recovery characteristics (250 ns trr), and are housed in R-6 axial packages. Both are classified as Active products, ensuring long-term availability. FR605GP-AP is supplied in cut tape packaging, while FR605GP-TP is supplied in tape and reel format. The forward voltage specification of 1.3 V @ 6 A is marginally higher than the PR6005-T (1.2 V @ 6 A), resulting in approximately 8% additional power dissipation under full-load conditions. Operating temperature range (-55°C ~ 150°C) is narrower than the PR6005-T (-65°C ~ 150°C) at the lower bound.

GI756-E3/73 (Vishay General Semiconductor - Diodes Division) provides full electrical compatibility at 600 V / 6 A with Active product status. This device is housed in a P600 axial package, which is mechanically compatible with through-hole PCB layouts. The forward voltage of 900 mV @ 6 A is lower than the PR6005-T, reducing power dissipation by approximately 25%. However, the reverse recovery time of 2.5 µs indicates standard recovery characteristics, making this device suitable for lower-frequency rectification applications where switching speed is not critical. Operating temperature range (-50°C ~ 150°C) is narrower than the PR6005-T at the lower bound.

Secondary Substitutes (Electrical Compatibility with Limitations):

60S6-TP (Micro Commercial Co) meets the 600 V / 6 A electrical specification and is classified as Active. The device is housed in a DO-201AD axial package, which is mechanically compatible with through-hole mounting. Forward voltage of 1 V @ 6 A is lower than the PR6005-T, reducing power dissipation. Standard recovery characteristics (> 500 ns) indicate this device is suitable for lower-frequency applications. Operating temperature range (-55°C ~ 150°C) matches the FR605 series.

6A6-TP (Micro Commercial Co) meets the 600 V / 6 A electrical specification but is classified as Not For New Designs, indicating this part is in end-of-life status. The R-6 axial package provides direct mechanical compatibility. Forward voltage of 950 mV @ 6 A is lower than the PR6005-T. Standard recovery characteristics and narrower operating temperature range (-55°C ~ 125°C) limit applicability to lower-frequency, lower-temperature applications.

Not Recommended:

1N5552 (Solid State Inc.) is rated for only 3 A average rectified current, which is insufficient for applications requiring the full 6 A capacity of the PR6005-T. Although this device is classified as Active and offers superior reverse leakage characteristics (1 µA @ 600 V), the current limitation makes it unsuitable as a direct substitute.

Frequently Asked Questions (FAQ)

Q: Can the 1N5552 be used as a substitute for the PR6005-T?

A: No. The 1N5552 is rated for 3 A average rectified current, while the PR6005-T is rated for 6 A. Using an undersized device will result in excessive power dissipation, thermal stress, and potential device failure. The 1N5552 is suitable only for applications requiring 3 A or less.

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

A: Fast recovery diodes (trr ≤ 500 ns) are designed for high-frequency switching applications where rapid reverse recovery is required to minimize switching losses and electromagnetic interference. Standard recovery diodes (trr > 500 ns) are suitable for lower-frequency rectification applications such as power supplies operating at 50/60 Hz. The PR6005-T features fast recovery characteristics (250 ns), making it suitable for both high-frequency and standard applications. Substitutes with standard recovery characteristics (60S6-TP, 6A6-TP, GI756-E3/73) are suitable for standard-frequency applications but may introduce additional switching losses in high-frequency circuits.

Q: Are the R-6, DO-201AD, and P600 packages mechanically interchangeable?

A: All three packages are axial through-hole configurations and are mechanically compatible with standard through-hole PCB layouts. However, physical dimensions vary. The R-6 package (used by PR6005-T, 6A6-TP, FR605GP-AP, FR605GP-TP) and P600 package (used by GI756-E3/73) have different lead spacing and body lengths. The DO-201AD package (used by 60S6-TP) has different dimensions. While all are through-hole compatible, PCB layout verification is required to confirm that lead spacing and body length accommodate the specific substitute package.

Q: Why is the FR605GP-TP classified as Active while the 6A6-TP is classified as Not For New Designs?

A: Product status reflects the manufacturer's commitment to long-term availability and support. Active products are in full production with guaranteed availability for new designs. Not For New Designs indicates the manufacturer is phasing out the product and recommends using alternative parts for new applications. For ongoing production and repair applications, Active products (FR605GP-TP, FR605GP-AP, GI756-E3/73, 60S6-TP) provide superior long-term supply assurance.

Q: What is the impact of forward voltage differences on circuit performance?

A: Forward voltage (Vf) determines the voltage drop across the diode during conduction and directly affects power dissipation. The PR6005-T specifies 1.2 V @ 6 A. Substitutes with lower Vf (GI756-E3/73 at 900 mV, 6A6-TP at 950 mV, 60S6-TP at 1 V) reduce power dissipation and heat generation. Substitutes with higher Vf (FR605GP-AP and FR605GP-TP at 1.3 V) increase power dissipation by approximately 8%. In high-current applications, this difference becomes significant for thermal management. Circuit design must account for these variations if thermal performance is critical.

Q: What is the significance of reverse leakage current specifications?

A: Reverse leakage current (Ir) is the small current that flows through the diode when reverse-biased. The PR6005-T specifies 10 µA @ 600 V. Lower leakage currents (1N5552 at 1 µA, 60S6-TP and GI756-E3/73 at 5 µA) are beneficial in high-impedance circuits where leakage can introduce measurement errors or signal degradation. Higher leakage currents are acceptable in power rectification applications where the leakage current is negligible compared to forward current. For most general-purpose rectification applications, the differences in leakage current are not significant.

Q: Can the PR6005-T be replaced with a lower-current device in applications that do not require full 6 A capacity?

A: Yes, provided the application current requirement does not exceed the substitute device rating. The 1N5552 (3 A) is suitable for applications requiring 3 A or less. However, using a device rated for higher current than required provides no performance benefit and increases component cost. Device selection should match the actual application current requirement.

Q: What packaging format should be selected: cut tape (CT) or tape and reel (TR)?

A: Cut tape (CT) packaging is suitable for manual assembly, prototyping, and low-volume production. Tape and reel (TR) packaging is designed for automated pick-and-place assembly equipment and high-volume production. The electrical and mechanical specifications are identical between packaging formats. Selection depends on assembly process requirements and production volume.

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