1N4934GP-TP Equivalent & Substitute Parts

Part Overview

The 1N4934GP-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 100 V DC reverse voltage and 1 A average rectified current in a DO-41 through-hole package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary to support existing applications, legacy system maintenance, and design transitions to active alternatives that meet identical electrical and mechanical specifications.

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
Reverse Recovery Time (trr)	200	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Mounting Type	Through Hole	—
Package / Case	DO-204AL, DO-41, Axial	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the 1N4934GP-TP are grouped based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.2 V @ 1 A (or within acceptable tolerance)
Reverse Recovery Time (trr): 200 ns (or faster)
Current - Reverse Leakage @ Vr: 5 µA @ 100 V (or lower)
Mounting Type: Through Hole
Package / Case: DO-204AL, DO-41, Axial
Operating Temperature - Junction: -55°C to 150°C

Substitution Groups:

Group 1: Direct Parametric Equivalents (Identical Electrical Specifications) Parts matching all critical parameters with identical forward voltage and reverse recovery time specifications:

1N4934G (Taiwan Semiconductor Corporation)
1N4934G R1G (Taiwan Semiconductor Corporation)
PG4934_R2_00001 (Panjit International Inc.)

Group 2: Automotive-Qualified Equivalents (AEC-Q101 Certified) Parts meeting all electrical specifications with automotive-grade qualification:

1N4934GH (Taiwan Semiconductor Corporation)
1N4934GHR1G (Taiwan Semiconductor Corporation)

Group 3: Fast Recovery Variants (Improved Performance) Parts with faster reverse recovery time (150 ns) and compatible electrical ratings:

FR102G R1G (Taiwan Semiconductor Corporation)
FR102T-G (Comchip Technology)
PG101R_R2_00001 (Panjit International Inc.)

All substitute parts maintain RoHS3 compliance, MSL Level 1 (Unlimited), and through-hole mounting compatibility with the original 1N4934GP-TP.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V @ A]	trr [ns]	Ir @ Vr [µA @ V]	Package	Product Status	Inventory [Pcs]
1N4934GP-TP	Micro Commercial Co	100	1	1.2 @ 1	200	5 @ 100	DO-41	Not For New Designs	1051
1N4934G	Taiwan Semiconductor Corporation	100	1	1.2 @ 1	200	5 @ 100	DO-204AL (DO-41)	Active	1573
1N4934G R1G	Taiwan Semiconductor Corporation	100	1	1.2 @ 1	200	5 @ 100	DO-204AL (DO-41)	Active	1002
1N4934GH	Taiwan Semiconductor Corporation	100	1	1.2 @ 1	200	5 @ 100	DO-204AL (DO-41)	Active	1166
1N4934GHR1G	Taiwan Semiconductor Corporation	100	1	1.2 @ 1	200	5 @ 100	DO-204AL (DO-41)	Active	933
FR102G R1G	Taiwan Semiconductor Corporation	100	1	1.3 @ 1	150	5 @ 100	DO-204AL (DO-41)	Active	1117
FR102T-G	Comchip Technology	100	1	1.3 @ 1	150	5 @ 100	DO-41	Active	1029
PG101R_R2_00001	Panjit International Inc.	100	1	1.3 @ 1	150	1 @ 100	DO-41	Active	858
PG4934_R2_00001	Panjit International Inc.	100	1	1.2 @ 1	200	5 @ 100	DO-41	Active	1075

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

Select from Group 1 parts (1N4934G, 1N4934G R1G, or PG4934_R2_00001) when exact electrical parameter matching is required. These parts maintain identical forward voltage (1.2 V @ 1 A) and reverse recovery time (200 ns) specifications. All are Active status products with RoHS3 compliance. The 1N4934G from Taiwan Semiconductor Corporation offers the highest inventory availability (1573 pcs) for immediate procurement.

For Automotive Applications:

Select 1N4934GH or 1N4934GHR1G when AEC-Q101 automotive qualification is required. These parts maintain identical electrical specifications while providing automotive-grade reliability certification. Both are Active status with full RoHS3 compliance.

For Improved Performance (Faster Recovery):

Select from Group 3 parts (FR102G R1G, FR102T-G, or PG101R_R2_00001) when faster reverse recovery time (150 ns) is beneficial. These parts accept a slightly higher forward voltage (1.3 V @ 1 A) but deliver improved switching performance. FR102T-G from Comchip Technology maintains Tape & Reel packaging identical to the original 1N4934GP-TP. PG101R_R2_00001 offers the lowest reverse leakage current (1 µA @ 100 V).

Compliance Verification:

All substitute parts maintain RoHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status. All are classified as EAR99 with identical HTSUS code (8541.10.0080) to the original part.

Frequently Asked Questions (FAQ)

Q: Can I use 1N4934G as a direct replacement for 1N4934GP-TP?

A: Yes. The 1N4934G meets all critical electrical parameters: 100 V reverse voltage, 1 A average rectified current, 1.2 V forward voltage @ 1 A, and 200 ns reverse recovery time. Both use DO-41 through-hole packaging. The primary difference is product status: 1N4934G is Active while 1N4934GP-TP is Not For New Designs.

Q: What is the difference between 1N4934G and 1N4934GH?

A: Electrical specifications are identical. The 1N4934GH carries AEC-Q101 automotive qualification and is designated as automotive-grade. Select 1N4934GH for applications requiring automotive reliability certification.

Q: Can I use FR102T-G instead of 1N4934GP-TP?

A: Yes, with the following considerations: FR102T-G maintains 100 V reverse voltage and 1 A current rating. Forward voltage is 1.3 V @ 1 A (versus 1.2 V for the original), and reverse recovery time is 150 ns (faster than the original 200 ns). These differences are within acceptable substitution parameters for general-purpose rectifier applications. FR102T-G maintains identical Tape & Reel packaging.

Q: What does "Fast Recovery ≤ 500ns, > 200mA (Io)" mean?

A: This classification indicates the diode exhibits fast recovery characteristics with reverse recovery time not exceeding 500 ns when forward current exceeds 200 mA. All listed substitute parts meet this specification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry RoHS3 compliance certification. All maintain MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: Which substitute part has the best availability?

A: The 1N4934G from Taiwan Semiconductor Corporation has the highest inventory availability at 1573 pcs in stock.

Q: Can I use PG101R_R2_00001 in a legacy design?

A: Yes. PG101R_R2_00001 meets all critical electrical parameters with improved performance characteristics: 100 V reverse voltage, 1 A current, 150 ns reverse recovery time, and lower reverse leakage current (1 µA @ 100 V versus 5 µA for the original). Forward voltage is 1.3 V @ 1 A. The part maintains DO-41 through-hole packaging and Tape & Reel format.

Q: What is the difference between DO-41 and DO-204AL packaging?

A: DO-41 and DO-204AL are equivalent designations for the same axial through-hole package. Both refer to the same physical form factor used in all listed substitute parts.

Q: Should I select a faster recovery diode (150 ns) over the original specification (200 ns)?

A: Faster recovery time (150 ns) is a performance improvement that does not compromise compatibility. It reduces switching losses and improves efficiency in rectifier applications. Selection depends on application requirements; both specifications are acceptable substitutes.

Q: Are there any temperature rating differences between substitute parts?

A: No. All substitute parts maintain identical operating temperature range: -55°C to 150°C junction temperature.

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