1N4454-TAP Equivalent & Substitute Parts

Part Overview

The 1N4454-TAP is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This through-hole component operates at 75 V DC reverse voltage with 150 mA average rectified current in a DO-35 axial package. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when alternative electrical specifications better suit application requirements.

Substiute Parts

1N4454-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 9351N4454-TAP Datasheet

Current PartRFQ

1N4454

Microchip TechnologyIn Stock: 103971N4454 Datasheet

MFR RecommendedRFQ

1N4454TR

onsemiIn Stock: 164091N4454TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1N4454-TAP is determined by the following critical parameters: DC reverse voltage rating (Vr), average rectified current (Io), forward voltage drop (Vf), reverse recovery time (trr), package type, and mounting configuration. All substitute parts must maintain mechanical compatibility through identical or equivalent DO-35 axial package geometry and through-hole mounting. Electrical substitution requires that the substitute part meets or exceeds the voltage and current specifications of the primary part, ensuring safe operation within the original circuit design envelope.

The 1N4454-TAP operates at 75 V maximum reverse voltage with 150 mA average rectified current. Substitute parts identified in this reference maintain the DO-35 package standard and through-hole mounting type. Electrical parameters including forward voltage, reverse recovery time, and reverse leakage current are evaluated for functional equivalence within standard rectifier diode applications.

Parameter Comparison

Engineering Selection Recommendations

1N4454 (Microchip Technology): This substitute provides equivalent 75 V reverse voltage rating and exceeds the current specification at 200 mA versus 150 mA. Forward voltage, reverse recovery time, and package configuration are identical to the primary part. However, this variant is RoHS non-compliant, which may restrict use in applications requiring environmental compliance certification. Selection is appropriate for legacy systems or applications without RoHS requirements.

1N4454TR (onsemi): This substitute is packaged in Cut Tape format and rated at 50 V maximum reverse voltage, which is 25 V below the primary part specification. Current rating is 200 mA, exceeding the 150 mA requirement. Forward voltage and reverse recovery time match the primary part. This variant is ROHS3 compliant and suitable for applications operating at 50 V or lower. The reduced voltage rating restricts this part to circuits where the maximum reverse voltage does not exceed 50 V. The onsemi variant is appropriate for new designs targeting RoHS compliance with voltage requirements at or below 50 V.

For applications requiring the full 75 V rating with RoHS3 compliance, the Vishay 1N4454-TAP remains the primary selection. The Microchip 1N4454 provides equivalent voltage performance without compliance certification. The onsemi 1N4454TR is suitable only for reduced-voltage applications with compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the 1N4454 (Microchip) directly replace the 1N4454-TAP (Vishay) in all applications?

A: The Microchip variant maintains the same 75 V reverse voltage rating, forward voltage characteristics, and DO-35 package geometry. The 200 mA current rating exceeds the 150 mA requirement. However, the Microchip part is RoHS non-compliant. Direct substitution is electrically valid but may violate procurement or environmental compliance requirements depending on application context.

Q: Why does the onsemi 1N4454TR have a lower voltage rating?

A: The onsemi 1N4454TR is rated at 50 V maximum reverse voltage compared to 75 V for the primary part. This represents a different device variant within the 1N4454 family. This part is suitable only for circuits where reverse voltage does not exceed 50 V. Substitution into a 75 V application would result in device failure or reduced reliability.

Q: Are all three parts available in the same package?

A: All three parts use the DO-204AH (DO-35) axial package for through-hole mounting. The Vishay and Microchip variants are supplied in Tape & Box packaging. The onsemi variant is supplied in Cut Tape format. Package geometry is identical; packaging format differs only in how components are delivered.

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

A: The Vishay primary part specifies 5 µA reverse leakage at 75 V. The Microchip and onsemi substitutes specify 100 nA at 50 V. Lower leakage current indicates reduced parasitic current flow in reverse bias conditions. The Microchip and onsemi variants exhibit superior leakage characteristics, which may provide performance benefits in high-impedance or precision analog circuits.

Q: Which substitute should be selected for new product designs?

A: For new designs requiring 75 V operation with RoHS3 compliance, the Vishay 1N4454-TAP is the appropriate selection. For designs operating at 50 V or lower with RoHS3 compliance requirements, the onsemi 1N4454TR is suitable. The Microchip 1N4454 is appropriate for legacy system maintenance or applications without compliance requirements.

Q: Are there any temperature rating differences between the parts?

A: The Vishay and Microchip variants specify -65°C to 175°C operating temperature range. The onsemi variant specifies 175°C maximum without a minimum temperature specification in the provided data. All three parts support standard industrial temperature ranges. Specific application temperature requirements should be verified against the complete datasheet for each manufacturer variant.