FR101-TP Equivalent & Substitute Parts

Part Overview

The FR101-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity. Substitute parts must maintain electrical performance across voltage, current, and thermal specifications while accommodating available packaging formats.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	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 @ 50 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

Substitution of the FR101-TP is determined by equivalence across the following critical parameters:

Voltage Rating: All substitutes maintain 50 V DC reverse voltage maximum
Current Rating: All substitutes maintain 1 A average rectified current
Forward Voltage: All substitutes maintain 1.3 V maximum forward voltage at 1 A
Recovery Characteristics: All substitutes maintain fast recovery ≤ 500ns with 150 ns reverse recovery time
Reverse Leakage: Substitutes maintain leakage at or below 5 µA @ 50 V
Mounting and Package: All substitutes are through-hole axial devices in DO-41 or DO-204AL format
Temperature Range: All substitutes maintain -55°C to 150°C junction temperature operating range
Compliance: All substitutes are ROHS3 compliant with MSL 1 (Unlimited)

Substitute parts are grouped by manufacturer and product status. The FR101-TP is obsolete; all listed substitutes are active products from alternative manufacturers.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Product Status	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	C @ Vr, F [pF]	Package	Inventory [Pcs]
FR101-TP	Micro Commercial Co	Obsolete	50	1	1.3 @ 1 A	150	5 @ 50 V	15 @ 4V, 1MHz	DO-41	941
FR101G	Taiwan Semiconductor Corporation	Active	50	1	1.3 @ 1 A	150	5 @ 50 V	10 @ 4V, 1MHz	DO-204AL (DO-41)	1104
FR101G R1G	Taiwan Semiconductor Corporation	Active	50	1	1.3 @ 1 A	150	5 @ 50 V	10 @ 4V, 1MHz	DO-204AL (DO-41)	732
FR101T-G	Comchip Technology	Active	50	1	1.3 @ 1 A	150	5 @ 50 V	25 @ 4V, 1MHz	DO-41	1043
PG100R_R2_00001	Panjit International Inc.	Active	50	1	1.3 @ 1 A	150	1 @ 50 V	12 @ 4V, 1MHz	DO-41	1053

Engineering Selection Recommendations

All listed substitute parts are active products with ROHS3 compliance and MSL 1 rating, providing long-term procurement viability compared to the obsolete FR101-TP.

FR101G and FR101G R1G (Taiwan Semiconductor Corporation): These parts are parametrically equivalent across all critical electrical specifications. FR101G is supplied in Tape & Reel packaging, while FR101G R1G is supplied in bulk format. Both maintain identical voltage, current, and recovery characteristics. Capacitance is lower (10 pF vs. 15 pF), which may be advantageous in high-frequency applications. Inventory availability is high for both variants.

FR101T-G (Comchip Technology): This part maintains all critical electrical specifications with identical voltage, current, and recovery performance. Capacitance is higher (25 pF vs. 15 pF), which may affect high-frequency circuit behavior. Supplied in Tape & Reel format. Inventory availability is high.

PG100R_R2_00001 (Panjit International Inc.): This part maintains all critical electrical specifications with identical voltage, current, and recovery performance. Reverse leakage current is lower (1 µA vs. 5 µA), providing improved leakage characteristics. Capacitance is 12 pF. Supplied in Tape & Reel format. REACH Unaffected status is documented. Inventory availability is high.

Selection among substitutes should be based on packaging requirements (Tape & Reel vs. bulk), capacitance tolerance for the application, and reverse leakage performance needs.

Frequently Asked Questions (FAQ)

Q: Can FR101G be used as a direct replacement for FR101-TP?

A: Yes. FR101G maintains identical electrical specifications across voltage rating (50 V), current rating (1 A), forward voltage (1.3 V @ 1 A), and recovery time (150 ns). Both are through-hole axial devices. The primary difference is product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. standard). Capacitance is slightly lower (10 pF vs. 15 pF), which is not a limiting factor for general-purpose rectification.

Q: What is the difference between FR101G and FR101G R1G?

A: Both parts are manufactured by Taiwan Semiconductor Corporation and are parametrically identical. The difference is packaging: FR101G is supplied in Tape & Reel (TR) format, while FR101G R1G is supplied in bulk format. Electrical performance is identical.

Q: How does capacitance variation affect substitution?

A: Capacitance values range from 10 pF to 25 pF across the substitute parts. For general-purpose rectification applications, this variation is within acceptable limits. In high-frequency switching circuits or precision timing applications, capacitance differences may require circuit evaluation. FR101G and PG100R_R2_00001 offer lower capacitance (10 pF and 12 pF respectively), while FR101T-G offers higher capacitance (25 pF).

Q: Is reverse leakage current a critical differentiator?

A: Reverse leakage is specified at 5 µA for FR101-TP, FR101G, FR101G R1G, and FR101T-G. PG100R_R2_00001 specifies 1 µA, representing improved leakage performance. For most applications, both specifications are acceptable. Applications requiring minimal leakage current may benefit from PG100R_R2_00001.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) rating, matching the compliance profile of the FR101-TP.

Q: What packaging formats are available?

A: FR101G is supplied in Tape & Reel format. FR101G R1G is supplied in bulk format. FR101T-G and PG100R_R2_00001 are supplied in Tape & Reel format. All are through-hole axial devices compatible with standard PCB assembly processes.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, provided the design accommodates the specified electrical parameters. All substitutes maintain the critical specifications: 50 V reverse voltage, 1 A current rating, 1.3 V forward voltage, and 150 ns recovery time. Physical package dimensions (DO-41/DO-204AL axial) are compatible across all parts. Capacitance variation should be evaluated in frequency-sensitive applications.

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