PR1002-T Equivalent & Substitute Parts

Part Overview

The PR1002-T is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 100 V DC reverse voltage and 1 A average rectified current in a DO-41 through-hole package. This part is classified as obsolete, which necessitates identification of active equivalent and substitute components for ongoing production and maintenance applications. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional compatibility within defined parameter tolerances.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.2	V @ 1 A
Speed Classification	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-204AL, DO-41, Axial	-
Operating Temperature - Junction	-65 to 150	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the PR1002-T is determined by the following critical parameters:

Electrical Compatibility Requirements:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io): 1 A minimum
Voltage - Forward (Vf) (Max) @ If: 1.2 V or lower at 1 A
Current - Reverse Leakage @ Vr: 5 µA or lower at 100 V

Mechanical Compatibility Requirements:

Mounting Type: Through Hole
Package / Case: DO-204AL, DO-41, or Axial configurations
Operating Temperature - Junction: -65°C to 150°C minimum range

Compliance Requirements:

RoHS Status: ROHS3 Compliant
REACH Status: Compliance maintained

Substitute parts are classified into two categories:

Parametric Equivalents (Diodes Incorporated 1N4934 Series): These parts maintain identical electrical specifications with fast recovery characteristics (≤ 500ns) and are manufactured by the same supplier. They provide direct functional replacement with active product status.

Manufacturer Recommended Alternatives (1N4002 Series): These parts meet all electrical and mechanical requirements but employ standard recovery characteristics (> 500ns). They are sourced from multiple manufacturers including Vishay General Semiconductor, Comchip Technology, Micro Commercial Co, Taiwan Semiconductor Corporation, and onsemi. These alternatives provide functional compatibility for applications where fast recovery is not a critical design requirement.

Parameter Comparison

Parameter	PR1002-T	1N4934-T	1N4934G-T	1N4002-E3/73	1N4002-G	1N4002-TP	1N4002E-E3/53	1N4002E-E3/54	1N4002G	1N4002GP-E3/54	1N4002RLG
Manufacturer	Diodes Inc	Diodes Inc	Diodes Inc	Vishay	Comchip	MCC	Vishay	Vishay	TSC	Vishay	onsemi
Voltage - DC Reverse (Vr) (Max) [V]	100	100	100	100	100	100	100	100	100	100	100
Current - Average Rectified (Io) [A]	1	1	1	1	1	1	1	1	1	1	1
Voltage - Forward (Vf) (Max) @ If [V]	1.2 @ 1A	1.2 @ 1A	1.2 @ 1A	1.1 @ 1A	1.1 @ 1A	1.1 @ 1A	1.1 @ 1A	1.1 @ 1A	1.0 @ 1A	1.1 @ 1A	1.1 @ 1A
Speed Classification	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Standard Recovery > 500ns	Standard Recovery > 500ns	Standard Recovery > 500ns	Standard Recovery > 500ns	Standard Recovery > 500ns	Standard Recovery > 500ns	Standard Recovery > 500ns	Standard Recovery > 500ns
Reverse Recovery Time (trr) [ns]	150	200	200	-	-	2000	-	-	-	2000	-
Current - Reverse Leakage @ Vr [µA]	5 @ 100V	5 @ 100V	5 @ 100V	5 @ 100V	5 @ 100V	5 @ 100V	5 @ 100V	5 @ 100V	5 @ 100V	5 @ 100V	10 @ 100V
Capacitance @ Vr, F [pF]	15 @ 4V, 1MHz	15 @ 4V, 1MHz	-	15 @ 4V, 1MHz	15 @ 4V, 1MHz	15 @ 4V, 1MHz	15 @ 4V, 1MHz	15 @ 4V, 1MHz	10 @ 4V, 1MHz	8 @ 4V, 1MHz	-
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL (DO-41)	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL (DO-41)	DO-204AL (DO-41)	DO-204AL (DO-41)	DO-204AL (DO-41)	DO-204AL, DO-41, Axial
Operating Temperature - Junction [°C]	-65 to 150	-65 to 150	-65 to 150	-55 to 150	-55 to 150	-55 to 150	-50 to 150	-55 to 150	-55 to 150	-65 to 175	-65 to 175
Product Status	Obsolete	Active	Active	Active	Active	Not For New Designs	Active	Active	Active	Active	Not For New Designs
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Parametric Equivalence:

The 1N4934-T and 1N4934G-T are parametric equivalents manufactured by Diodes Incorporated with active product status. Both parts maintain the fast recovery characteristic (≤ 500ns) and identical electrical specifications to the PR1002-T. The 1N4934-T carries 25,290 units in stock inventory, while the 1N4934G-T carries 5,200 units. Both are ROHS3 compliant and suitable for new designs. Selection between these two should be based on packaging preference (Cut Tape) and inventory availability.

For Manufacturer Recommended Alternatives:

The 1N4002 series provides functional substitution with standard recovery characteristics (> 500ns). Multiple manufacturers offer this part number with active product status:

1N4002-E3/73 (Vishay): 27,360 units in stock. Active status. Operating temperature range -55°C to 150°C.
1N4002-G (Comchip Technology): 13,557 units in stock. Active status. Operating temperature range -55°C to 150°C. Forward voltage 1.0 V @ 1 A.
1N4002E-E3/53 (Vishay): 16,682 units in stock. Active status. Operating temperature range -50°C to 150°C.
1N4002E-E3/54 (Vishay): 811 units in stock. Active status. Tape & Reel packaging. Operating temperature range -55°C to 150°C.
1N4002G (Taiwan Semiconductor Corporation): 1,491 units in stock. Active status. Forward voltage 1.0 V @ 1 A. Capacitance 10 pF @ 4V, 1MHz.
1N4002GP-E3/54 (Vishay SUPERECTIFIER® series): 38,771 units in stock. Active status. Extended operating temperature range -65°C to 175°C. Lowest capacitance at 8 pF @ 4V, 1MHz.

Parts designated "Not For New Designs" (1N4002-TP and 1N4002RLG) are available but should not be selected for new product development.

Compliance Verification:

All recommended substitute parts maintain ROHS3 compliance and REACH unaffected status. All parts are classified under ECCN EAR99 and HTSUS 8541.10.0080.

Frequently Asked Questions (FAQ)

Q: Can the 1N4934-T directly replace the PR1002-T?

A: Yes. The 1N4934-T is a parametric equivalent with identical electrical specifications: 100 V reverse voltage, 1 A average rectified current, 1.2 V forward voltage at 1 A, and fast recovery characteristics (≤ 500ns). Both are through-hole DO-41 packages. The 1N4934-T has active product status, making it suitable for production use.

Q: What is the difference between the 1N4934 series and the 1N4002 series?

A: The primary difference is recovery speed classification. The 1N4934 series employs fast recovery (≤ 500ns), while the 1N4002 series uses standard recovery (> 500ns). Both series meet the 100 V / 1 A electrical requirements. Fast recovery diodes are preferred in high-frequency switching applications, while standard recovery diodes are suitable for lower-frequency rectification. Forward voltage specifications are also slightly lower in the 1N4002 series (1.0 to 1.1 V versus 1.2 V).

Q: Are there packaging differences between substitute parts?

A: Yes. Most substitute parts are available in Cut Tape (CT) or Tape & Reel (TR) packaging. The 1N4002RLG is supplied in Axial configuration. All parts maintain through-hole mounting compatibility with DO-41 or DO-204AL package designations. Verify packaging format against assembly equipment requirements before selection.

Q: Which substitute part has the best inventory availability?

A: The 1N4002GP-E3/54 (Vishay SUPERECTIFIER® series) has the highest inventory at 38,771 units in stock. The 1N4002-TP (Micro Commercial Co) has 43,003 units but is designated "Not For New Designs." For active products suitable for new designs, the 1N4002-E3/73 (Vishay) offers 27,360 units.

Q: What is the operating temperature range consideration for substitution?

A: The PR1002-T operates from -65°C to 150°C. Most 1N4002 series alternatives operate from -55°C to 150°C, which is acceptable for most applications. However, the 1N4002GP-E3/54 and 1N4002RLG extend to -65°C to 175°C, providing superior low-temperature performance and higher maximum junction temperature. Select based on specific application temperature requirements.

Q: Can I use the 1N4002 series in applications originally designed for the PR1002-T?

A: Substitution is permissible when the application does not require fast recovery characteristics. The 1N4002 series meets all voltage, current, and leakage specifications. However, if the circuit operates at high switching frequencies or requires fast transient response, the fast recovery 1N4934 series is the appropriate choice. Verify circuit performance through testing if recovery speed is uncertain.

Q: What compliance certifications apply to all substitute parts?

A: All recommended substitute parts are ROHS3 compliant, REACH unaffected, classified as EAR99 for export control, and assigned HTSUS code 8541.10.0080. Moisture sensitivity level is 1 (Unlimited) for all parts, indicating no special moisture handling requirements during storage or assembly.

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