UF3003-HF General Purpose Rectifier Diode 200V 3A Equivalent & Substitute Parts

Part Overview

The UF3003-HF is a general purpose rectifier diode manufactured by Comchip Technology, rated for 200V DC reverse voltage and 3A average rectified current in a through-hole DO-27 axial package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are necessary when the original part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design revisions call for different recovery speed characteristics while maintaining electrical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1	V @ 3 A
Speed Classification	Fast Recovery ≤ 500ns	-
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	5	µA @ 200 V
Mounting Type	Through Hole	-
Package / Case	DO-27, Axial	-
Operating Temperature - Junction	-55 to 125	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the UF3003-HF is determined by strict electrical and mechanical parameter matching. The following criteria establish valid substitute relationships:

Primary Electrical Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal 200V
Current - Average Rectified (Io): Must equal 3A
Voltage - Forward (Vf) (Max) @ If: Must not exceed 1V @ 3A
Operating Temperature - Junction: Must support minimum -55°C to 125°C range

Secondary Electrical Criteria:

Speed Classification: Fast Recovery (≤500ns) or Standard Recovery (>500ns) are both acceptable for general purpose applications
Reverse Recovery Time (trr): May vary; not a limiting factor for substitution
Current - Reverse Leakage @ Vr: May vary within acceptable ranges

Mechanical Criteria:

Mounting Type: Through Hole (required)
Package / Case: DO-27, DO-201AA, or DO-201AD axial packages are interchangeable
Packaging Format: Bulk, Tape & Reel (TR), or Cut Tape (CT) are acceptable for component selection

Compliance Criteria:

RoHS Status: ROHS3 Compliant (required)
REACH Status: REACH Unaffected (required)

All substitute parts listed meet these criteria and are electrically and mechanically compatible with the UF3003-HF.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ 3A [V]	Speed	trr [ns]	Ir @ 200V [µA]	Package	Temp Range [°C]	Product Status
UF3003-HF	Comchip Technology	200	3	1.0	Fast Recovery ≤500ns	50	5	DO-27	-55 to 125	Active
1N5402G	Taiwan Semiconductor Corporation	200	3	1.0	Standard Recovery >500ns	-	5	DO-201AD	-55 to 150	Active
1N5402RLG	onsemi	200	3	1.0	Standard Recovery >500ns	-	10	DO-27	-65 to 150	Not For New Designs
EGP30D	onsemi	200	3	0.95	Fast Recovery ≤500ns	50	5	DO-201AD	-65 to 150	Not For New Designs
UF5402-E3/54	Vishay General Semiconductor - Diodes Division	200	3	1.0	Fast Recovery ≤500ns	50	10	DO-201AD	-55 to 150	Active
UF5402-E3/73	Vishay General Semiconductor - Diodes Division	200	3	1.0	Fast Recovery ≤500ns	50	10	DO-201AD	-55 to 150	Active

Engineering Selection Recommendations

For New Designs: Select from parts with Active product status: UF3003-HF (original), 1N5402G, UF5402-E3/54, or UF5402-E3/73. These components are supported by manufacturers for ongoing production and design integration.

For Existing Designs Requiring Substitution: 1N5402G, UF5402-E3/54, and UF5402-E3/73 provide direct electrical equivalence with the UF3003-HF while maintaining ROHS3 compliance and REACH unaffected status.

Package Considerations:

DO-27 axial package (original): UF3003-HF, 1N5402RLG
DO-201AD axial package: 1N5402G, EGP30D, UF5402-E3/54, UF5402-E3/73

Recovery Speed Characteristics:

Fast Recovery (≤500ns): UF3003-HF, EGP30D, UF5402-E3/54, UF5402-E3/73
Standard Recovery (>500ns): 1N5402G, 1N5402RLG

Compliance Status: All listed substitutes are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute UF3003-HF with 1N5402G? A: Yes. Both parts meet the core electrical requirements: 200V reverse voltage, 3A average rectified current, and 1V forward voltage at 3A. The primary difference is recovery speed classification (Fast vs. Standard) and package format (DO-27 vs. DO-201AD). Mechanical compatibility depends on PCB layout accommodation for the different axial package dimensions.

Q: What is the difference between Fast Recovery and Standard Recovery diodes? A: Fast Recovery diodes (≤500ns reverse recovery time) switch off more quickly, reducing switching losses in high-frequency applications. Standard Recovery diodes (>500ns) are suitable for lower-frequency rectification. For general purpose 50/60 Hz applications, both are functionally equivalent.

Q: Are UF5402-E3/54 and UF5402-E3/73 interchangeable? A: Yes. Both parts are identical in electrical specifications and package format (DO-201AD). The suffix designations (-E3/54 and -E3/73) indicate different tape reel configurations or manufacturing date codes, not functional differences.

Q: Why is 1N5402RLG marked "Not For New Designs"? A: This designation indicates the manufacturer (onsemi) is phasing out this part number. While it remains electrically compatible and available in inventory, new designs should select from Active status alternatives such as 1N5402G or UF5402 series parts.

Q: Can I use EGP30D as a direct replacement? A: EGP30D is electrically compatible with UF3003-HF and offers identical Fast Recovery characteristics. However, EGP30D is marked "Not For New Designs" by onsemi. For new designs, select Active status alternatives. For existing designs, EGP30D remains a valid substitute if inventory is available.

Q: What are the packaging format differences (Bulk, Tape & Reel, Cut Tape)? A: Bulk packaging is loose components suitable for manual assembly. Tape & Reel (TR) and Cut Tape (CT) formats are for automated pick-and-place assembly. Selection depends on manufacturing process requirements, not electrical compatibility.

Q: Do all substitutes support the same temperature range as UF3003-HF? A: UF3003-HF operates -55°C to 125°C. Most substitutes support -55°C to 150°C or -65°C to 150°C, providing equal or extended temperature range capability. All meet or exceed the original specification.

Q: Is reverse leakage current variation significant between substitutes? A: UF3003-HF specifies 5µA @ 200V. Some substitutes specify 10µA @ 200V. This variation is within acceptable limits for general purpose rectification and does not affect functional compatibility in standard applications.

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