1N5555 Equivalent & Substitute Parts

Part Overview

The 1N5555 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose transient protection applications. This through-hole component operates across a temperature range of -65°C to 175°C and is classified as Active product status. The 1N5555 is available in bulk packaging with 954 pieces currently in stock as new original inventory.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across critical parameters including voltage ratings, current handling, power dissipation, and package specifications. Identifying qualified alternatives ensures design flexibility, supply chain continuity, and access to components with enhanced certifications or availability.

Substiute Parts

1N5555

Microchip TechnologyIn Stock: 10041N5555 Datasheet

Current PartRFQ

JANTX1N5555

Microchip TechnologyIn Stock: 10336JANTX1N5555 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1N5555 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 30.5V
• Voltage - Breakdown (Min): 33V
• Voltage - Clamping (Max) @ Ipp: 47.5V
• Current - Peak Pulse (10/1000µs): 32A
• Power - Peak Pulse: 1500W

Mechanical Parameters:

• Mounting Type: Through Hole
• Package / Case: DO-13 or equivalent axial package designation
• Unidirectional Channels: 1

Functional Parameters:

• Type: Zener
• Category: Transient Voltage Suppressors (TVS)
• Applications: General Purpose

Substitute parts must maintain identical electrical specifications and compatible package configurations. The JANTX1N5555 meets all substitution criteria while offering military-grade qualification and enhanced inventory availability.

Parameter Comparison

Engineering Selection Recommendations

1N5555 (Commercial Grade)

The 1N5555 is suitable for general-purpose transient protection applications where commercial-grade specifications are acceptable. This component is Active and maintains full electrical equivalence with substitute options. Current inventory of 954 pieces supports immediate procurement for standard applications.

JANTX1N5555 (Military Grade)

The JANTX1N5555 provides identical electrical and mechanical performance to the 1N5555 while offering military-grade qualification under MIL-PRF-19500/500. This variant is appropriate for applications requiring enhanced reliability assurance, military specifications, or procurement from qualified military suppliers. Significantly higher inventory availability (10,300 pieces) supports extended production runs and supply chain resilience. The JANTX1N5555 is electrically interchangeable with the 1N5555 across all critical parameters and maintains compatibility with DO-13 and DO-202AA package designations.

Both parts maintain identical compliance status (RoHS non-compliant, REACH Unaffected) and environmental ratings. Selection between these options depends on application requirements and qualification mandates rather than electrical performance differences.

Frequently Asked Questions (FAQ)

Q: Are the 1N5555 and JANTX1N5555 electrically interchangeable?

A: Yes. Both components maintain identical voltage ratings (30.5V reverse standoff, 33V breakdown minimum, 47.5V clamping maximum), current handling (32A peak pulse), and power dissipation (1500W peak pulse). Electrical substitution is direct across all specified parameters.

Q: What is the difference between the 1N5555 and JANTX1N5555?

A: The primary difference is qualification level. The JANTX1N5555 carries military-grade designation with MIL-PRF-19500/500 qualification, while the 1N5555 is commercial grade. Electrical specifications, operating temperature range, and package compatibility are identical.

Q: Are package designations DO-13 and DO-202AA compatible?

A: Yes. Both designations refer to the same axial through-hole package configuration. The JANTX1N5555 is supplied in DO-13 (DO-202AA) package, which is mechanically and electrically compatible with standard DO-13 footprints.

Q: Can I substitute the JANTX1N5555 for the 1N5555 in existing designs?

A: Yes. The JANTX1N5555 is a direct substitute with identical electrical performance and package compatibility. No circuit modifications or PCB layout changes are required.

Q: What is the operating temperature range for both parts?

A: Both the 1N5555 and JANTX1N5555 operate across -65°C to 175°C (junction temperature). This range is identical for both variants.

Q: Are there any compliance differences between these parts?

A: Both parts share identical compliance status: RoHS non-compliant, REACH Unaffected, and EAR99 export classification. The JANTX1N5555 adds military qualification but does not alter baseline compliance designations.

Q: Which part should I select for new designs?

A: Selection depends on application requirements. For general-purpose transient protection without military specifications, either part is suitable. For applications requiring military qualification or enhanced reliability documentation, the JANTX1N5555 is the appropriate choice. Both maintain Active product status and full manufacturer support.