BYT53C-TAP Equivalent & Substitute Parts

Part Overview

The BYT53C-TAP is an avalanche diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 150V DC reverse voltage and 1.9A average rectified current in a through-hole SOD-57 axial package. This component is classified as Active and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, manufacturing discontinuation, or application-specific packaging preferences.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	150	V
Current - Average Rectified (Io)	1.9	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	V
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	5	µA @ 150 V
Mounting Type	Through Hole	—
Package / Case	SOD-57, Axial	—
Operating Temperature - Junction	-55 to 175	°C
Technology	Avalanche	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the BYT53C-TAP is determined by electrical parameter equivalence and mechanical compatibility. The critical parameters governing substitution are:

Voltage Rating: DC reverse voltage must equal or exceed 150V
Current Rating: Average rectified current must equal or exceed 1.9A
Recovery Characteristics: Reverse recovery time must be ≤ 500ns for fast recovery operation
Reverse Leakage: Maximum reverse leakage current at rated voltage must not exceed 5µA
Mounting Configuration: Through-hole axial package orientation required
Compliance: RoHS and REACH status must be maintained

The EGP20C meets these substitution criteria with equivalent voltage and recovery specifications, while providing higher current capacity (2A) and compatible through-hole axial mounting.

Parameter Comparison

Parameter	BYT53C-TAP	EGP20C	Match Status
Voltage - DC Reverse (Vr) (Max)	150 V	150 V	Equivalent
Current - Average Rectified (Io)	1.9 A	2 A	Substitute Exceeds
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	950 mV @ 2 A	Substitute Lower
Reverse Recovery Time (trr)	50 ns	50 ns	Equivalent
Current - Reverse Leakage @ Vr	5 µA @ 150 V	5 µA @ 150 V	Equivalent
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	SOD-57, Axial	DO-204AC, DO-15, Axial	Compatible Axial
Operating Temperature - Junction	-55 to 175 °C	-65 to 150 °C	Substitute Lower Max
RoHS Status	ROHS3 Compliant	Not Specified	Main Part Certified
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent

Engineering Selection Recommendations

BYT53C-TAP is the primary selection when:

Maximum junction temperature operation to 175°C is required
RoHS3 compliance certification is mandatory for the application
SOD-57 package footprint is specified in the design
Avalanche technology characteristics are explicitly required

EGP20C is an acceptable substitute when:

Operating junction temperature does not exceed 150°C
Current capacity of 2A meets or exceeds circuit requirements
DO-15 axial package footprint is compatible with board layout
Lower forward voltage drop (950mV @ 2A) provides design advantage
REACH compliance is sufficient and RoHS3 certification is not contractually required

Both parts maintain equivalent reverse voltage, reverse recovery time, and reverse leakage specifications. The EGP20C provides superior current handling and lower forward voltage characteristics, making it suitable for applications where thermal margin and efficiency are secondary to the primary electrical requirements.

Frequently Asked Questions (FAQ)

Q: Can EGP20C directly replace BYT53C-TAP in all applications?

A: EGP20C is electrically compatible for circuits operating below 150°C junction temperature. The higher current rating (2A vs 1.9A) and lower forward voltage (950mV vs 1.1V) are advantageous. However, if RoHS3 compliance is contractually required or if the design specifically requires operation above 150°C, BYT53C-TAP must be retained.

Q: What is the difference between SOD-57 and DO-15 packages?

A: Both are through-hole axial packages with compatible lead spacing and mounting orientation. SOD-57 and DO-15 (DO-204AC) are mechanically interchangeable in standard through-hole PCB designs. Physical dimensions may vary slightly, but both accommodate standard 0.3-inch lead spacing.

Q: Are the reverse recovery times identical?

A: Yes. Both BYT53C-TAP and EGP20C specify 50ns reverse recovery time, confirming fast recovery operation and equivalent switching performance in rectification circuits.

Q: Why is the maximum junction temperature lower for EGP20C?

A: EGP20C specifies -65°C to 150°C while BYT53C-TAP specifies -55°C to 175°C. Applications requiring sustained operation above 150°C junction temperature must use BYT53C-TAP. Standard industrial and consumer applications typically operate within the EGP20C temperature range.

Q: Is RoHS3 compliance required for my application?

A: RoHS3 compliance is mandatory for products sold in the European Union and for many OEM supply chains. If your application requires RoHS3 certification, BYT53C-TAP is the specified choice. EGP20C's RoHS status is not specified in available documentation.

Q: What is the significance of the 5µA reverse leakage specification?

A: Both parts specify identical reverse leakage current of 5µA at 150V, confirming equivalent blocking characteristics and suitability for precision rectification and protection circuits where leakage current must be controlled.

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