NDFR16P Equivalent & Substitute Parts

Part Overview

The NDFR16P is a hexadecimal rotary DIP switch manufactured by NKK Switches, designed for through-hole mounting applications requiring 16-position selection capability. This component operates at 5VDC with a 100mA current rating and features a tool-actuated rotary mechanism with a flush, recessed actuator level. The part is currently in Last Time Buy status, making identification of functionally equivalent alternatives essential for ongoing design support and procurement planning.

Key Parameters

Parameter	Value
Manufacturer Part Number	NDFR16P
Manufacturer	NKK Switches
Circuit Configuration	Hexadecimal
Number of Positions	16
Current Rating	100mA
Voltage Rating	5VDC
Actuator Type	Rotary for Tool
Actuator Level	Flush, Recessed
Contact Material	Beryllium Copper
Contact Finish	Gold
Mounting Type	Through Hole
Termination Style	PC Pin
Pitch	0.100" (2.54mm)
Height Above Board	0.205" (5.20mm)
Operating Temperature Range	-25°C to 75°C
Mechanical Life	20,000 Steps
Electrical Life	20,000 Cycles
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Last Time Buy

Substitute Part Grouping Explanation

Substitution eligibility for the NDFR16P is determined by strict equivalence across the following critical parameters:

Circuit Configuration: Must be hexadecimal (16-position)
Current Rating: Must support 100mA minimum
Voltage Rating: Must support 5VDC operation
Actuator Type: Must be rotary for tool actuation
Actuator Level: Must be flush or recessed
Contact Material & Finish: Beryllium copper with gold finish ensures signal integrity and corrosion resistance
Mounting Type: Through-hole mounting with PC pin termination
Pitch: 0.100" (2.54mm) standard spacing
Height Above Board: Physical clearance constraint of 0.205" (5.20mm)
Operating Temperature Range: Must support -25°C to 75°C minimum
Mechanical & Electrical Life: Must meet or exceed 20,000 steps and 20,000 cycles

The FD01FR16P-S meets all specified electrical and mechanical parameters and qualifies as a direct substitute.

Parameter Comparison

Parameter	NDFR16P	FD01FR16P-S
Manufacturer	NKK Switches	NKK Switches
Circuit Configuration	Hexadecimal	Hexadecimal
Number of Positions	16	16
Current Rating	100mA	100mA
Voltage Rating	5VDC	5VDC
Actuator Type	Rotary for Tool	Rotary for Tool
Actuator Level	Flush, Recessed	Flush, Recessed
Contact Material	Beryllium Copper	Beryllium Copper
Contact Finish	Gold	Gold
Mounting Type	Through Hole	Through Hole
Termination Style	PC Pin	PC Pin
Pitch	0.100" (2.54mm)	0.100" (2.54mm)
Height Above Board	0.205" (5.20mm)	0.205" (5.20mm)
Operating Temperature Range	-25°C to 75°C	-25°C to 75°C
Mechanical Life	20,000 Steps	20,000 Steps
Electrical Life	20,000 Cycles	20,000 Cycles
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Product Status	Last Time Buy	Active

Engineering Selection Recommendations

The FD01FR16P-S is the recommended substitute for the NDFR16P based on the following factors:

Product Status Alignment: The NDFR16P is designated Last Time Buy, indicating end-of-life status. The FD01FR16P-S maintains Active product status, ensuring long-term availability and continued manufacturer support.

Compliance Equivalence: Both parts maintain ROHS3 compliance and identical electrical specifications, ensuring regulatory continuity in applications subject to environmental restrictions.

Functional Parity: All critical electrical and mechanical parameters are identical, including hexadecimal circuit configuration, 100mA current rating, 5VDC voltage rating, and 20,000-cycle electrical life specification. Physical dimensions and mounting characteristics are equivalent, supporting direct board-level substitution without layout modification.

Inventory Availability: The FD01FR16P-S is currently in active production with confirmed stock availability, providing supply chain continuity for new designs and production replenishment.

Frequently Asked Questions (FAQ)

Q: Can the FD01FR16P-S be used as a direct replacement for the NDFR16P on existing PCBs?

A: Yes. The FD01FR16P-S is electrically and mechanically equivalent to the NDFR16P. Both parts share identical pitch (0.100"), height above board (0.205"), mounting type (through-hole), and termination style (PC pin). No PCB layout modifications are required.

Q: Are there any differences in electrical performance between these parts?

A: No. Both parts operate at 5VDC, support 100mA current, and provide 16-position hexadecimal selection. Mechanical life (20,000 steps) and electrical life (20,000 cycles) specifications are identical.

Q: Why is the NDFR16P being discontinued?

A: The NDFR16P is in Last Time Buy status. The FD01FR16P-S represents the active product line continuation from NKK Switches for this functional category.

Q: What is the difference between the NDFR16P and FD01FR16P-S part numbers?

A: The part numbers reflect different product line designations within NKK Switches' portfolio. The FD01FR16P-S is the current active equivalent. Electrical and mechanical specifications remain unchanged.

Q: Are both parts RoHS compliant?

A: Yes. Both the NDFR16P and FD01FR16P-S are ROHS3 compliant, meeting environmental and regulatory requirements for restricted substance use.

Q: What is the operating temperature range for these switches?

A: Both parts operate across -25°C to 75°C, supporting standard industrial and commercial temperature environments.

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