BY228-13TAP Equivalent & Substitute Parts

Part Overview

The BY228-13TAP is an avalanche diode rated for 1000 V DC reverse voltage and 3 A average rectified current, manufactured by Vishay General Semiconductor - Diodes Division. This through-hole component in SOD-64 axial package is designed for general-purpose rectification applications requiring avalanche breakdown protection. The part is currently Active in product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified for applications where alternative packaging, technology variants, or inventory considerations necessitate component replacement while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1000	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 5 A	V @ A
Reverse Recovery Time (trr)	2	µs
Current - Reverse Leakage @ Vr	5	µA @ 1000 V
Mounting Type	Through Hole	-
Package / Case	SOD-64, Axial	-
Operating Temperature - Junction (Max)	140	°C
Technology	Avalanche	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the BY228-13TAP is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 1000 V minimum
Current - Average Rectified (Io): 3 A minimum
Mounting Type: Through Hole
Package Category: Axial configuration

Secondary Compatibility Factors:

Forward voltage characteristics within acceptable operating range
Reverse recovery speed classification (Standard or Fast Recovery acceptable)
Reverse leakage current at rated voltage
Operating temperature range compatibility
RoHS3 compliance and regulatory alignment

The substitute parts identified (1N5408G, 1N5408RLG, and EGP30K) meet the primary electrical requirements of 1000 V reverse voltage and 3 A current rating. Variations in technology (Standard vs. Avalanche), package designation (SOD-64 vs. DO-201AD vs. DO-27), and recovery characteristics are noted as secondary differentiators that do not preclude functional substitution in most applications.

Parameter Comparison

Parameter	BY228-13TAP	1N5408G	1N5408RLG	EGP30K
Manufacturer	Vishay General Semiconductor	Taiwan Semiconductor Corporation	onsemi	Fairchild Semiconductor
Voltage - DC Reverse (Vr) (Max)	1000 V	1000 V	1000 V	800 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 5 A	1 V @ 3 A	1 V @ 3 A	1.7 V @ 3 A
Speed Classification	Standard Recovery >500ns	Standard Recovery >500ns	Standard Recovery >500ns	Fast Recovery ≤500ns
Reverse Recovery Time (trr)	2 µs	-	-	75 ns
Current - Reverse Leakage @ Vr	5 µA @ 1000 V	5 µA @ 1000 V	10 µA @ 1000 V	5 µA @ 800 V
Package / Case	SOD-64, Axial	DO-201AD, Axial	DO-201AA, DO-27, Axial	DO-201AD, Axial
Operating Temperature - Junction	-55°C to 140°C	-55°C to 150°C	-65°C to 150°C	-65°C to 150°C
Technology	Avalanche	Standard	Standard	Standard
Product Status	Active	Active	Not For New Designs	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not specified

Engineering Selection Recommendations

1N5408G (Taiwan Semiconductor Corporation)

The 1N5408G is a direct electrical equivalent meeting all primary substitution criteria: 1000 V reverse voltage, 3 A current rating, and through-hole axial mounting. This part is Active in product status with ROHS3 compliance. The forward voltage is lower (1 V @ 3 A vs. 1.5 V @ 5 A), resulting in reduced power dissipation. Operating temperature range extends to 150°C, providing 10°C additional margin over the BY228-13TAP. Package designation is DO-201AD rather than SOD-64, requiring verification of physical fit in existing PCB layouts. Inventory availability is high (38,100 pcs).

1N5408RLG (onsemi)

The 1N5408RLG meets all primary electrical requirements with 1000 V reverse voltage and 3 A current rating. However, this part carries a "Not For New Designs" product status designation, indicating onsemi has discontinued active development and support. While ROHS3 compliant and currently in stock (27,400 pcs), this part should be selected only for legacy system maintenance or where existing designs are locked to this component. Reverse leakage current is higher at 10 µA @ 1000 V compared to 5 µA for the main part. Operating temperature range is -65°C to 150°C.

EGP30K (Fairchild Semiconductor)

The EGP30K does not meet the primary substitution criterion of 1000 V reverse voltage, rated at 800 V maximum. This part is suitable only for applications where the circuit design permits operation at reduced voltage margins. The EGP30K offers fast recovery characteristics (75 ns trr) compared to the standard recovery of the BY228-13TAP, which may provide advantages in high-frequency switching applications. Forward voltage is higher at 1.7 V @ 3 A. RoHS status is not specified in available data. This part should not be selected as a direct substitute for 1000 V rated applications.

Frequently Asked Questions (FAQ)

Q: Can the 1N5408G replace the BY228-13TAP in all applications?

A: The 1N5408G meets all primary electrical specifications (1000 V, 3 A, through-hole axial). The primary consideration is physical package compatibility. The BY228-13TAP uses SOD-64 packaging while the 1N5408G uses DO-201AD. Both are axial through-hole packages, but dimensional differences may affect PCB layout fit. Verify lead diameter and spacing against your PCB design before substitution.

Q: Why is the 1N5408RLG marked "Not For New Designs"?

A: This designation indicates the manufacturer (onsemi) has transitioned this product to end-of-life status and is not recommending it for new circuit designs. While the part remains electrically functional and in stock, it should be used only for maintaining existing systems or where design constraints require this specific component. For new designs, select 1N5408G or equivalent active-status alternatives.

Q: Is the EGP30K a suitable substitute?

A: The EGP30K is not a direct substitute due to its 800 V maximum reverse voltage rating versus the 1000 V requirement of the BY228-13TAP. Substitution is only acceptable in applications where circuit design permits operation at 800 V or lower. The EGP30K offers fast recovery characteristics that may benefit high-frequency applications, but voltage derating must be confirmed with circuit analysis.

Q: What are the key differences between Avalanche and Standard technology diodes?

A: The BY228-13TAP uses Avalanche technology, while the substitute parts (1N5408G, 1N5408RLG, EGP30K) use Standard technology. Both technologies support the same voltage and current ratings. Avalanche diodes provide inherent overvoltage protection through controlled breakdown, while Standard diodes rely on external circuit protection. For applications requiring avalanche protection characteristics, verify that circuit design does not depend on this specific technology before substituting with Standard technology parts.

Q: Are there physical dimension differences between SOD-64 and DO-201AD packages?

A: Yes. SOD-64 and DO-201AD are both axial through-hole packages but have different physical dimensions. Lead diameter, lead spacing, and overall package length may differ. PCB design files must be reviewed to confirm that substitute parts with different package designations will fit existing footprints. Contact the component supplier for detailed dimensional specifications if PCB layout verification is required.

Q: Do all substitute parts have the same RoHS compliance status?

A: The 1N5408G and 1N5408RLG are both ROHS3 compliant, matching the BY228-13TAP. RoHS status for the EGP30K is not specified in the provided data. Verify RoHS compliance with the supplier if regulatory compliance is a requirement for your application.

Q: What is the significance of reverse leakage current differences?

A: Reverse leakage current affects power dissipation and circuit performance at high voltages. The BY228-13TAP and 1N5408G both specify 5 µA @ 1000 V, while the 1N5408RLG specifies 10 µA @ 1000 V. The EGP30K specifies 5 µA @ 800 V. Higher leakage current increases power dissipation and may affect circuit stability in sensitive applications. For most general-purpose rectification, these differences are negligible.

Q: Can I use the EGP30K in a 1000 V application?

A: No. The EGP30K is rated for 800 V maximum reverse voltage. Using it in a 1000 V application exceeds the component's voltage rating and will result in premature failure or destruction. The part must not be selected for applications requiring 1000 V operation.

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