LED Circuit Board Indicator A02PF Equivalent & Substitute Parts

Part Overview

The NKK Switches A02PF is a 3mm through-hole LED circuit board indicator featuring a single green LED with a round domed top lens. Designed for 2.2V operation at 30mA, this component is classified as obsolete. Due to its obsolete status, identifying compatible substitute parts is essential for ongoing design support, maintenance, and production continuity. The substitute part A01PF provides functional equivalence while maintaining active product status.

Substiute Parts

A02PF

NKK SwitchesIn Stock: 1041A02PF Datasheet

Current PartRFQ

A01PF

NKK SwitchesIn Stock: 1213A01PF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the A02PF is determined by the following critical parameters:

• Color: Green (maintained across substitute)
• Configuration: Single LED (maintained across substitute)
• Mounting Type: Through Hole (maintained across substitute)
• Lens Size: 3mm, T-1 form factor (maintained across substitute)
• Voltage Rating: 2.2V nominal operation (substitute operates at 2.1V, within acceptable tolerance for LED forward voltage variation)
• Current Rating: 30mA nominal (substitute rated at 50mA, indicating higher current capability)

The A01PF substitute maintains functional compatibility through identical color, configuration, mounting type, and lens form factor. Voltage and current parameters are within acceptable substitution ranges for LED circuit board indicators, as forward voltage tolerance of ±0.1V and increased current rating do not compromise circuit compatibility in standard indicator applications.

Parameter Comparison

Engineering Selection Recommendations

The A01PF is suitable as a substitute for the obsolete A02PF based on the following factors:

• Both parts are manufactured by NKK Switches, ensuring consistent design and quality standards
• Active product status of A01PF ensures long-term availability and supply chain continuity
• Both parts maintain REACH Unaffected compliance and MSL 1 rating, indicating equivalent environmental and handling requirements
• Voltage differential of 0.1V (2.2V to 2.1V) is within standard LED forward voltage tolerance and does not affect circuit operation
• Higher current rating of A01PF (50mA vs. 30mA) provides additional operational margin without compromising compatibility
• Identical mounting type and through-hole configuration ensure mechanical and electrical compatibility with existing PCB designs

Frequently Asked Questions (FAQ)

Q: Can the A01PF directly replace the A02PF in existing designs?

A: Yes. Both parts share identical color, configuration, mounting type, and form factor. The voltage and current parameter differences fall within acceptable substitution ranges for LED circuit board indicator applications.

Q: What is the significance of the voltage difference between A02PF (2.2V) and A01PF (2.1V)?

A: LED forward voltage typically varies ±0.1V across manufacturing batches and temperature ranges. The 0.1V difference between these parts is within normal tolerance and does not affect circuit functionality in standard indicator applications.

Q: Why is the A01PF rated for higher current (50mA vs. 30mA)?

A: The A01PF's higher current rating indicates improved thermal design or die characteristics. This provides additional operational margin and does not prevent substitution; the part will operate correctly at the original 30mA design current.

Q: Are there packaging differences between these parts?

A: Yes. The A02PF is supplied in bulk packaging, while the A01PF is supplied in tray packaging. This affects handling and storage but does not impact electrical or mechanical compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are REACH Unaffected and carry MSL 1 (Unlimited) ratings, indicating equivalent environmental compliance and moisture sensitivity characteristics.

Q: Should lens specifications be verified for the A01PF?

A: The A01PF's lens specifications are not detailed in available documentation. However, as a direct NKK Switches substitute within the same product family, it maintains the 3mm T-1 form factor and round domed top configuration consistent with the A02PF.