3N247 Bridge Rectifier Single Phase 100V 1.5A - Equivalent & Substitute Parts

Part Overview

The 3N247 is a single-phase bridge rectifier manufactured by onsemi, rated for 100 V peak reverse voltage and 1.5 A average rectified current in a 4-SIP KBPM through-hole package. This part is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for new designs and ongoing production requirements. Substitute parts maintain the core electrical specifications while offering active product status and improved availability.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	100 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max) @ If	1 V @ 1 A
Current - Reverse Leakage @ Vr	5 µA @ 100 V
Operating Temperature Range	-55°C ~ 165°C (TJ)
Mounting Type	Through Hole
Package / Case	4-SIP, KBPM
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 3N247 are grouped based on the following substitution criteria:

Primary Substitutes (Direct Electrical Equivalents): Parts that maintain 100 V peak reverse voltage and 1.5 A average rectified current specifications are considered direct electrical equivalents. These parts satisfy the core functional requirements of the 3N247 and are suitable for direct replacement in applications where the original specifications are required.

Secondary Substitutes (Higher Current Rating): Parts rated for 100 V peak reverse voltage with 2 A average rectified current exceed the 3N247 specifications and are suitable for applications where higher current capacity is acceptable or beneficial. These parts provide enhanced performance margin.

Voltage-Variant Substitutes: Parts from the same manufacturer series with different voltage ratings (50 V, 200 V, 400 V, 600 V, 800 V, 1 kV) are listed for reference in applications requiring different voltage specifications. These are not direct substitutes for the 3N247 but represent the available product family.

Key Parameters for Substitution:

Diode Type: Single Phase (required)
Technology: Standard (required)
Mounting Type: Through Hole (required)
Voltage - Peak Reverse (Max): 100 V (for direct equivalents)
Current - Average Rectified (Io): 1.5 A minimum (for direct equivalents)
Package compatibility: 4-SIP or KBP package family

Parameter Comparison

Parameter	3N247 (onsemi)	KBP01G (Diodes Inc.)	KBP201G (SMC)
Voltage - Peak Reverse (Max)	100 V	100 V	100 V
Current - Average Rectified (Io)	1.5 A	1.5 A	2 A
Voltage - Forward (Vf) (Max) @ If	1 V @ 1 A	1.1 V @ 1.5 A	1.1 V @ 2 A
Current - Reverse Leakage @ Vr	5 µA @ 100 V	5 µA @ 100 V	5 µA @ 100 V
Operating Temperature Range	-55°C ~ 165°C	-65°C ~ 150°C	-55°C ~ 150°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	4-SIP, KBPM	4-SIP, KBP	4-ESIP
Product Status	Obsolete	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

KBP01G (Diodes Incorporated) is the primary direct substitute for the 3N247. It maintains identical voltage and current ratings with active product status and ROHS3 compliance. The operating temperature range extends to -65°C, providing broader low-temperature capability. Forward voltage specification is slightly higher (1.1 V @ 1.5 A versus 1 V @ 1 A), which is within acceptable tolerance for standard bridge rectifier applications.

KBP201G (SMC Diode Solutions) is a secondary substitute with 2 A current rating, suitable for applications where increased current capacity is required or preferred. This part maintains the 100 V voltage specification and active product status with ROHS3 compliance. The 4-ESIP package differs from the original KBPM package; physical dimensions and pin configuration must be verified for mechanical compatibility.

VS-2KBP Series (Vishay) parts listed represent voltage-variant options within the same manufacturer family. VS-2KBP02, VS-2KBP06, and VS-2KBP10 are not direct substitutes due to different voltage ratings (200 V, 600 V, and 1 kV respectively) but are available for applications requiring higher voltage specifications. All Vishay parts maintain active product status and ROHS3 compliance.

Selection should prioritize parts with active product status and compliance certifications. Physical package compatibility must be confirmed before implementation.

Frequently Asked Questions (FAQ)

Q: Can KBP01G be used as a direct replacement for 3N247? A: Yes. KBP01G maintains the same 100 V peak reverse voltage and 1.5 A average rectified current specifications. Both parts use through-hole mounting in the 4-SIP/KBP package family. Verify physical pin spacing and board layout compatibility before installation.

Q: What is the difference between KBP01G and KBP201G? A: KBP201G is rated for 2 A average rectified current compared to KBP01G at 1.5 A. Both maintain 100 V peak reverse voltage. KBP201G uses a 4-ESIP package variant, which may differ in physical dimensions from the standard 4-SIP package. Current application requirements determine which part is appropriate.

Q: Why are VS-2KBP parts listed if they have different voltage ratings? A: VS-2KBP series parts represent the available product family from Vishay with different voltage specifications (50 V through 1 kV). These are included for reference in applications requiring voltage ratings other than 100 V. They are not direct substitutes for the 3N247 but offer alternative solutions for different circuit requirements.

Q: Are all substitute parts RoHS compliant? A: KBP01G and KBP201G are ROHS3 compliant. All Vishay VS-2KBP series parts are ROHS3 compliant. The original 3N247 RoHS status is not specified in available documentation.

Q: What is the impact of forward voltage differences between 3N247 and substitute parts? A: The 3N247 specifies 1 V @ 1 A forward voltage, while KBP01G and KBP201G specify 1.1 V @ 1.5 A and 1.1 V @ 2 A respectively. This 0.1 V difference is typical across standard bridge rectifier designs and does not affect functionality in standard AC-to-DC conversion applications. Thermal design calculations should account for the specified forward voltage of the selected part.

Q: Can I use a higher current-rated part like KBP201G in place of 3N247? A: Yes. Higher current-rated parts are suitable for applications where the original 1.5 A specification is adequate. The 2 A rating of KBP201G provides additional current capacity margin. Verify that the package form factor is compatible with the circuit board layout.

Q: What should I verify before selecting a substitute part? A: Confirm voltage rating (100 V for direct equivalents), current rating (1.5 A minimum), through-hole mounting compatibility, package dimensions and pin spacing, operating temperature range requirements, and compliance certifications for your application.

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