FR104GP-TP Equivalent & Substitute Parts

Part Overview

The FR104GP-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 400 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, manufacturing discontinuation, or design flexibility needs.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.3	V @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 400 V
Mounting Type	Through Hole	—
Package / Case	DO-204AL, DO-41, Axial	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the FR104GP-TP are classified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Electrical Parameters (Must Match):

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 5 µA @ 400 V

Mechanical Parameters (Must Match):

Mounting Type: Through Hole
Package / Case: DO-204AL, DO-41, Axial
Operating Temperature - Junction: -55°C to 150°C (minimum)

Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Parametric equivalents maintain all electrical and mechanical specifications. Similar parts may exhibit variations in reverse recovery time, capacitance, or forward voltage within acceptable operating ranges but retain core voltage and current ratings. Parts with Obsolete product status are included for reference but require design review before implementation.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Reverse Leakage @ Vr [µA]	Speed	Package	Product Status	Inventory [Pcs]
FR104GP-TP	Micro Commercial Co	400	1	1.3 @ 1 A	150	5 @ 400 V	Fast Recovery ≤ 500ns	DO-41	Active	824
UF4004GP-TP	Micro Commercial Co	400	1	1.3 @ 1 A	50	5 @ 400 V	Fast Recovery ≤ 500ns	DO-41	Active	15757
FR104G A0G	Taiwan Semiconductor Corporation	400	1	1.3 @ 1 A	150	5 @ 400 V	Fast Recovery ≤ 500ns	DO-204AL (DO-41)	Active	5396
HER105G	Taiwan Semiconductor Corporation	400	1	1.3 @ 1 A	50	5 @ 400 V	Fast Recovery ≤ 500ns	DO-204AL (DO-41)	Active	2200
SF16GH	Taiwan Semiconductor Corporation	400	1	1.3 @ 1 A	35	5 @ 400 V	Fast Recovery ≤ 500ns	DO-204AL (DO-41)	Active	5986
UF4005-G	Comchip Technology	400	1	1.3 @ 1 A	50	5 @ 400 V	Fast Recovery ≤ 500ns	DO-41	Obsolete	8680
1N4004G	Rectron USA	400	1	1.0 @ 1 A	—	200 nA @ 400 V	Standard Recovery >500ns	DO-41	Active	10300

Engineering Selection Recommendations

Preferred Parametric Equivalents (Active Status):

UF4004GP-TP, FR104G A0G, HER105G, and SF16GH are direct parametric equivalents with Active product status. These parts maintain all critical electrical specifications: 400 V reverse voltage, 1 A average rectified current, 1.3 V forward voltage at 1 A, and fast recovery characteristics. Reverse recovery time variations (50 ns to 150 ns) remain within fast recovery classification. All parts are ROHS3 compliant with unlimited moisture sensitivity level.

Automotive-Qualified Alternative:

SF16GH includes AEC-Q101 automotive qualification and is suitable for applications requiring automotive-grade reliability. This part exhibits the fastest reverse recovery time (35 ns) among equivalents.

High-Inventory Alternative:

UF4004GP-TP offers the highest inventory availability (15,757 pcs) while maintaining parametric equivalence to FR104GP-TP.

Obsolete Status Consideration:

UF4005-G carries Obsolete product status and should not be selected for new designs or long-term production requirements.

Non-Equivalent Alternative:

1N4004G from Rectron USA exhibits different electrical characteristics: standard recovery speed (>500ns versus fast recovery ≤500ns), significantly lower reverse leakage (200 nA versus 5 µA), and lower forward voltage (1.0 V versus 1.3 V). This part is suitable only when standard recovery speed and lower leakage are design requirements.

Frequently Asked Questions (FAQ)

Q: Can UF4004GP-TP directly replace FR104GP-TP?

A: Yes. UF4004GP-TP is a parametric equivalent with identical voltage rating (400 V), current rating (1 A), forward voltage (1.3 V @ 1 A), and fast recovery speed classification. The reverse recovery time is 50 ns versus 150 ns for FR104GP-TP, representing improved performance within the same fast recovery category. Both use DO-41 packaging and are ROHS3 compliant.

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

A: Fast recovery diodes have reverse recovery time ≤ 500 ns with forward current > 200 mA. Standard recovery diodes exceed 500 ns reverse recovery time. FR104GP-TP and its parametric equivalents are fast recovery devices. The 1N4004G is a standard recovery device and exhibits different switching characteristics unsuitable for high-frequency applications.

Q: Are DO-41 and DO-204AL packages interchangeable?

A: DO-41 and DO-204AL are equivalent package designations for the same axial through-hole form factor. Parts specified as DO-204AL (DO-41) or DO-41 are mechanically and electrically compatible in the same circuit board layout.

Q: Why does SF16GH have automotive qualification?

A: SF16GH carries AEC-Q101 qualification, indicating compliance with automotive industry reliability and testing standards. This qualification is provided by the manufacturer and applies to applications requiring automotive-grade component certification.

Q: Can 1N4004G be used as a substitute for FR104GP-TP?

A: 1N4004G is not a parametric equivalent. While both are rated for 400 V and 1 A, 1N4004G operates as a standard recovery device (>500 ns) versus fast recovery (≤500 ns) for FR104GP-TP. Additionally, 1N4004G exhibits lower forward voltage (1.0 V) and significantly lower reverse leakage (200 nA). Selection depends on specific circuit requirements for recovery speed and leakage characteristics.

Q: Is UF4005-G suitable for new designs?

A: No. UF4005-G carries Obsolete product status, indicating discontinued manufacturing. New designs should use Active status parts such as UF4004GP-TP, FR104G A0G, HER105G, or SF16GH.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts listed are ROHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited). REACH status is either Unaffected or available upon request. ECCN classification is EAR99 for all parts.

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