BYW76TR Equivalent & Substitute Parts

Part Overview

The BYW76TR is a 600V, 3A avalanche diode manufactured by Vishay General Semiconductor - Diodes Division in SOD-64 axial through-hole packaging. This component is classified as an active product and is ROHS3 compliant. The BYW76TR features fast recovery characteristics with a reverse recovery time of 200 ns, making it suitable for high-frequency switching applications requiring avalanche protection.

Substitute parts become necessary due to inventory constraints, manufacturing discontinuation of specific packaging variants, or application-specific requirements for alternative recovery speeds or forward voltage characteristics. The parts listed below provide electrical equivalence within defined parameter tolerances while accommodating different packaging formats and manufacturer specifications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 3 A	V
Reverse Recovery Time (trr)	200	ns
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	-
Mounting Type	Through Hole	-
Package / Case	SOD-64, Axial	-
Operating Temperature - Junction	-55°C ~ 175°C	-
Technology	Avalanche	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the BYW76TR is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 3 A
Mounting Type: Through Hole
RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

Allowable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Range 1.0 V to 1.7 V @ 3 A
Reverse Recovery Time (trr): 75 ns to 300 ns
Current - Reverse Leakage @ Vr: 5 µA to 10 µA @ 600 V
Speed Classification: Fast Recovery (≤ 500ns) or Standard Recovery (> 500ns)
Package / Case: SOD-64, DO-27, DO-201AA, DO-201AD (all axial through-hole formats)
Operating Temperature - Junction: Minimum -55°C, Maximum 125°C or higher
Technology: Avalanche or Standard

Substitute parts are grouped by packaging format and recovery speed characteristics. Parts maintaining identical SOD-64 packaging with fast recovery specifications provide direct substitution. Parts utilizing alternative axial packages (DO-27, DO-201AD, DO-201AA) with equivalent electrical ratings provide functional substitution with potential mechanical layout considerations.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	trr	Speed	Package	Temp Range	Product Status
BYW76TR	Vishay	600 V	3 A	1.1 V @ 3 A	200 ns	Fast Recovery ≤ 500ns	SOD-64	-55°C ~ 175°C	Active
BYW76TAP	Vishay	600 V	3 A	1.1 V @ 3 A	200 ns	Fast Recovery ≤ 500ns	SOD-64	-55°C ~ 175°C	Active
1N5406-G	Comchip Technology	600 V	3 A	1 V @ 3 A	-	Standard Recovery > 500ns	DO-201AD	-65°C ~ 125°C	Active
1N5406G	Taiwan Semiconductor Corporation	600 V	3 A	1 V @ 3 A	-	Standard Recovery > 500ns	DO-201AD	-55°C ~ 150°C	Active
1N5406RLG	onsemi	600 V	3 A	1 V @ 3 A	-	Standard Recovery > 500ns	DO-201AA, DO-27	-65°C ~ 150°C	Not For New Designs
EGP30J	onsemi	600 V	3 A	1.7 V @ 3 A	75 ns	Fast Recovery ≤ 500ns	DO-201AD	-65°C ~ 150°C	Not For New Designs
FR305GP-TP	Micro Commercial Co	600 V	3 A	1.3 V @ 3 A	250 ns	Fast Recovery ≤ 500ns	DO-201AD	-55°C ~ 155°C	Active
MR856G	onsemi	600 V	3 A	1.25 V @ 3 A	300 ns	Fast Recovery ≤ 500ns	DO-201AA, DO-27	-65°C ~ 125°C	Active

Engineering Selection Recommendations

Direct Substitution (Identical Electrical and Packaging Characteristics):

BYW76TAP is a direct substitute for BYW76TR. Both parts are manufactured by Vishay, share identical electrical specifications (600V, 3A, 1.1V forward voltage, 200ns recovery time), and feature SOD-64 axial packaging. The only difference is packaging format (Cut Tape versus Tape & Reel). Both parts maintain Active product status and ROHS3 compliance. This substitution requires no circuit redesign or thermal analysis.

Functional Substitution (Equivalent Electrical Performance, Alternative Packaging):

FR305GP-TP (Micro Commercial Co) provides functional equivalence with fast recovery characteristics (250ns trr) and active product status. The part operates within the required 600V/3A specifications with forward voltage of 1.3V @ 3A. Packaging is DO-201AD axial format, which is mechanically compatible with through-hole PCB layouts designed for axial components. Operating temperature range (-55°C ~ 155°C) exceeds the BYW76TR minimum requirement.

MR856G (onsemi) offers functional equivalence with fast recovery characteristics (300ns trr) and active product status. Electrical specifications match the 600V/3A requirement with 1.25V forward voltage @ 3A. Packaging is DO-201AA/DO-27 axial format, compatible with standard through-hole layouts. Operating temperature range (-65°C ~ 125°C) accommodates most industrial applications.

Conditional Substitution (Acceptable with Application Review):

1N5406G (Taiwan Semiconductor Corporation) provides electrical equivalence with standard recovery characteristics (>500ns). This part is suitable for applications where fast recovery is not a circuit requirement. Active product status and ROHS3 compliance are maintained. Operating temperature range (-55°C ~ 150°C) is acceptable for most applications.

1N5406-G (Comchip Technology) provides electrical equivalence with standard recovery characteristics. Active product status is maintained. Operating temperature range (-65°C ~ 125°C) is narrower than the BYW76TR specification. This part is suitable for applications operating within -55°C to 125°C.

Not Recommended for New Designs:

1N5406RLG (onsemi) carries "Not For New Designs" product status. While electrical specifications are equivalent, this designation indicates manufacturer discontinuation trajectory. Use only in legacy system maintenance or when inventory constraints necessitate substitution.

EGP30J (onsemi) carries "Not For New Designs" product status. Although fast recovery characteristics (75ns trr) are superior to the BYW76TR, the elevated forward voltage (1.7V @ 3A) may impact circuit efficiency. Use only in legacy system maintenance.

Frequently Asked Questions (FAQ)

Q: Can BYW76TAP replace BYW76TR in all applications?

A: Yes. BYW76TAP is electrically and functionally identical to BYW76TR. Both parts share the same manufacturer (Vishay), voltage rating (600V), current rating (3A), forward voltage (1.1V @ 3A), recovery time (200ns), and operating temperature range (-55°C ~ 175°C). The only difference is packaging format: BYW76TR is supplied in Tape & Reel format, while BYW76TAP is supplied in Cut Tape format. Both use SOD-64 axial packaging and are ROHS3 compliant.

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

A: Recovery speed refers to the reverse recovery time (trr), which is the time required for a diode to stop conducting when the applied voltage reverses. Fast recovery diodes (trr ≤ 500ns) are suitable for high-frequency switching applications and reduce switching losses. Standard recovery diodes (trr > 500ns) are suitable for lower-frequency applications and general-purpose rectification. The BYW76TR specifies fast recovery at 200ns, making it suitable for switching frequencies above approximately 100 kHz.

Q: Can I use a standard recovery diode (1N5406G) instead of the fast recovery BYW76TR?

A: Substitution is possible only if the application circuit does not require fast recovery characteristics. Standard recovery diodes exhibit higher switching losses and increased electromagnetic interference at high frequencies. If the circuit operates at frequencies below 50 kHz and switching losses are not a design constraint, 1N5406G provides electrical equivalence. For high-frequency applications, fast recovery substitutes (FR305GP-TP or MR856G) are required.

Q: Are DO-27 and DO-201AD packages mechanically interchangeable?

A: DO-27 and DO-201AD are both axial through-hole packages with identical lead spacing and mechanical dimensions. Both are suitable for standard PCB through-hole layouts designed for axial components. Parts specified as DO-201AA, DO-27, or DO-201AD can be used interchangeably in PCB designs without modification. Verify lead diameter and spacing against PCB hole specifications to ensure proper fit.

Q: What does "Not For New Designs" product status mean?

A: "Not For New Designs" indicates that the manufacturer has discontinued or is discontinuing the product line. These parts remain available in inventory but are not recommended for new circuit designs. Use these parts only for replacement or maintenance of existing systems. For new designs, select parts with "Active" product status to ensure long-term availability and manufacturer support.

Q: How do forward voltage differences affect circuit performance?

A: Forward voltage (Vf) determines the voltage drop across the diode during conduction. The BYW76TR specifies 1.1V @ 3A, while substitutes range from 1.0V to 1.7V @ 3A. Higher forward voltage increases power dissipation and heat generation. In rectifier circuits, a 0.6V difference (between 1.1V and 1.7V) results in approximately 1.8W additional power dissipation at 3A continuous current. For applications with tight thermal budgets or high current density, select substitutes with forward voltage closest to the original specification.

Q: What is the significance of operating temperature range?

A: Operating temperature range specifies the junction temperature limits within which the diode functions reliably. The BYW76TR specifies -55°C ~ 175°C, which is wider than most substitutes. If the application requires operation at temperatures above 150°C or below -55°C, verify that the selected substitute meets the thermal requirement. Most industrial applications operate within -40°C ~ 125°C, where all listed substitutes are acceptable.

Q: Can I use MR856G or FR305GP-TP in place of BYW76TR?

A: Yes, both parts provide functional substitution. MR856G and FR305GP-TP maintain the 600V/3A electrical specification with fast recovery characteristics (300ns and 250ns respectively). Both are active products with ROHS3 compliance. MR856G uses DO-27/DO-201AA packaging, while FR305GP-TP uses DO-201AD packaging. Both are mechanically compatible with standard through-hole PCB layouts. Forward voltage differences (1.25V and 1.3V respectively, compared to 1.1V for BYW76TR) result in slightly higher power dissipation but are acceptable for most applications.

Q: What is reverse leakage current and why does it vary among substitutes?

A: Reverse leakage current (Ir) is the small current that flows through the diode when reverse bias is applied. The BYW76TR specifies 5µA @ 600V. Some substitutes specify 10µA @ 600V. Higher leakage current increases power dissipation in the reverse-biased state and may affect circuit performance in high-impedance applications. For most rectifier and switching applications, the difference between 5µA and 10µA is negligible. For precision analog circuits or high-impedance measurement circuits, select substitutes with leakage current matching the original specification.

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