BYW172F-TAP Equivalent & Substitute Parts

Part Overview

The BYW172F-TAP is an avalanche diode rated for 300 V DC reverse voltage with 3 A average rectified current, manufactured by Vishay General Semiconductor - Diodes Division. This through-hole component features fast recovery characteristics with a reverse recovery time of 100 ns and operates across a junction temperature range of -55°C to 175°C. The device is packaged in SOD-64 axial configuration and maintains active product status with full RoHS3 compliance.

Substitute parts become necessary when the BYW172F-TAP reaches end-of-life status, inventory constraints occur, or alternative packaging configurations are required for specific application requirements while maintaining electrical performance within acceptable parameters.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	300	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 9 A	V @ A
Reverse Recovery Time (trr)	100	ns
Current - Reverse Leakage @ Vr	1	µA @ 300 V
Operating Temperature - Junction	-55 to 175	°C
Mounting Type	Through Hole	-
Package / Case	SOD-64, Axial	-
Technology	Avalanche	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the BYW172F-TAP is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 300 V
Mounting Type: Through Hole
Speed Classification: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Current Rating Considerations: Substitute parts are grouped into two categories based on average rectified current (Io):

Full Current Rating Match (3 A): Parts with Io = 3 A provide direct electrical equivalence for applications requiring the full 3 A capacity of the BYW172F-TAP.
Reduced Current Rating (1 A): Parts with Io = 1 A are suitable for applications where the circuit design operates at or below 1 A average rectified current, despite the main part's 3 A capability.

Secondary Compatibility Parameters:

Reverse Recovery Time (trr): Substitute parts must maintain fast recovery characteristics
Current - Reverse Leakage @ Vr: Acceptable within standard rectifier specifications
Operating Temperature Range: Substitute parts must support the application's thermal requirements
RoHS and Compliance Status: Compliance certifications must align with end-use requirements

Parameter Comparison

Parameter	BYW172F-TAP	EGP10F	EGP30F	MUR130G
Manufacturer	Vishay General Semiconductor	Fairchild Semiconductor	Fairchild Semiconductor	onsemi
Voltage - DC Reverse (Vr) (Max)	300 V	300 V	300 V	300 V
Current - Average Rectified (Io)	3 A	1 A	3 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 9 A	1.25 V @ 1 A	1.25 V @ 3 A	1.25 V @ 1 A
Reverse Recovery Time (trr)	100 ns	50 ns	50 ns	75 ns
Current - Reverse Leakage @ Vr	1 µA @ 300 V	5 µA @ 300 V	5 µA @ 300 V	5 µA @ 300 V
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	SOD-64, Axial	DO-204AL, DO-41, Axial	DO-201AD, Axial	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-55°C to 175°C	-65°C to 150°C	-65°C to 150°C	-65°C to 175°C
Product Status	Active	Active	Active	Obsolete
RoHS Status	ROHS3 Compliant	Vendor Undefined	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

EGP30F - Primary Substitute for Full Current Applications

The EGP30F is the direct electrical equivalent for applications requiring the full 3 A average rectified current rating. This Fairchild Semiconductor part maintains the 300 V reverse voltage specification and fast recovery characteristics. The EGP30F carries active product status and ROHS3 compliance certification, ensuring long-term availability and regulatory alignment. The DO-201AD package provides mechanical compatibility with through-hole mounting requirements. Operating temperature range of -65°C to 150°C is suitable for applications within the BYW172F-TAP's thermal envelope up to 150°C. Inventory availability of 3,602 units supports immediate procurement.

EGP10F - Substitute for Reduced Current Applications

The EGP10F is suitable for circuit designs operating at 1 A average rectified current or below. This part maintains the 300 V reverse voltage and fast recovery speed specifications. Active product status and high inventory availability (87,987 units) provide supply security. The DO-41 package differs from the SOD-64 configuration, requiring mechanical board layout verification. Operating temperature range of -65°C to 150°C applies the same upper limit constraint as the EGP30F. Vendor-undefined RoHS status requires compliance verification against end-use requirements.

MUR130G - Substitute for Reduced Current Applications with Extended Temperature Range

The MUR130G is applicable for 1 A average rectified current applications and provides operating temperature range extending to 175°C, matching the BYW172F-TAP's upper thermal limit. This onsemi part maintains 300 V reverse voltage and fast recovery characteristics with ROHS3 compliance. However, product status is listed as obsolete, indicating limited long-term availability. The DO-41 axial package requires mechanical verification. Reverse recovery time of 75 ns is intermediate between the main part and other substitutes. Inventory of 852 units supports near-term requirements only.

Frequently Asked Questions (FAQ)

Q: Can EGP10F or MUR130G be used in applications designed for the full 3 A rating of BYW172F-TAP?

A: No. EGP10F and MUR130G are rated for 1 A average rectified current. Using these parts in circuits requiring 3 A operation will result in device failure or reduced reliability. These substitutes are limited to applications where the actual circuit current does not exceed 1 A.

Q: What is the primary difference between EGP30F and BYW172F-TAP?

A: Both parts share identical 300 V reverse voltage and 3 A current ratings with fast recovery characteristics. The primary differences are manufacturer (Fairchild vs. Vishay), package configuration (DO-201AD vs. SOD-64), and operating temperature upper limit (150°C vs. 175°C). The EGP30F is suitable for applications operating below 150°C junction temperature.

Q: Why is MUR130G listed as obsolete?

A: MUR130G carries obsolete product status from onsemi. While current inventory exists (852 units), this designation indicates the manufacturer has discontinued active production and support. Long-term availability cannot be assured. This part should be considered only for immediate short-term requirements.

Q: Are there package compatibility issues when substituting with EGP10F or EGP30F?

A: Yes. The BYW172F-TAP uses SOD-64 axial packaging, while EGP10F uses DO-41 and EGP30F uses DO-201AD. These packages have different physical dimensions and lead spacing. Board layout and mechanical mounting must be verified before substitution. Axial lead orientation and spacing differ between these package types.

Q: What is the impact of different reverse recovery times on circuit performance?

A: The BYW172F-TAP has a reverse recovery time of 100 ns, while EGP10F and EGP30F have 50 ns, and MUR130G has 75 ns. Faster recovery times (lower trr values) reduce switching losses and improve efficiency in high-frequency applications. Substitutes with faster recovery times will not degrade performance; they may improve it in switching applications.

Q: Do all substitute parts meet RoHS3 compliance?

A: EGP30F and MUR130G carry explicit ROHS3 compliance certification. EGP10F lists vendor-undefined RoHS status, requiring direct verification with the supplier or distributor before use in applications with RoHS compliance requirements.

Q: What is the significance of the different forward voltage specifications?

A: BYW172F-TAP specifies 1.5 V forward voltage at 9 A, while substitutes specify 1.25 V at their respective rated currents. Forward voltage varies with current level. Direct comparison requires evaluation at the same current point. At lower currents, forward voltage typically decreases. This parameter affects power dissipation and thermal design.

Q: Can temperature range differences affect part selection?

A: Yes. BYW172F-TAP operates from -55°C to 175°C, while EGP10F and EGP30F are limited to -65°C to 150°C. If the application requires junction temperatures above 150°C, only BYW172F-TAP or MUR130G are suitable. Conversely, if the application operates below -55°C, EGP10F and EGP30F provide extended low-temperature capability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message