DRFR10P Equivalent & Substitute Parts

Part Overview

The DRFR10P is a rotary DIP switch manufactured by NKK Switches, designed for BCD encoding applications requiring 10-position selection. This through-hole component operates at 100mA and 5VDC, featuring a sealed design with gold-plated copper contacts. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Circuit Type	BCD
Number of Positions	10
Current Rating	100mA
Voltage Rating	5VDC
Actuator Type	Rotary for Tool
Mounting Type	Through Hole
Pitch	0.100" (2.54mm)
Contact Finish	Gold
Termination Style	PC Pin

Substitute Part Grouping Explanation

Substitution eligibility for the DRFR10P is determined by strict alignment with core electrical and mechanical parameters. All substitute parts must maintain:

BCD circuit configuration with 10-position capability
100mA current rating minimum
Through-hole mounting with 0.100" (2.54mm) pitch
Gold-plated contact finish
Rotary tool-actuated design with flush/recessed actuator level
PC pin termination

The two identified substitutes meet these core requirements while operating at different voltage ratings and mechanical life specifications. Voltage rating differences do not preclude substitution when the application operates within the lower voltage envelope.

Parameter Comparison

Parameter	DRFR10P (Main)	FR01FR10P-S	94HAB10T
Manufacturer	NKK Switches	NKK Switches	Grayhill Inc.
Circuit Type	BCD	BCD	BCD
Number of Positions	10	10	10
Current Rating (Amps)	100mA	100mA	100mA
Voltage Rating	5VDC	5VDC	50VDC
Actuator Type	Rotary for Tool	Rotary for Tool	Rotary for Tool
Actuator Level	Flush, Recessed	Flush, Recessed	Flush, Recessed
Contact Material	Copper	Copper Alloy	Copper Alloy
Contact Finish	Gold	Gold	Gold
Height Above Board	0.232" (5.90mm)	0.150" (3.81mm)	0.225" (5.72mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Termination Style	PC Pin	PC Pin	PC Pin
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Operating Temperature	-25°C ~ 75°C	-25°C ~ 85°C	-40°C ~ 85°C
Mechanical Life	20,000 Steps	10,000 Steps	10,000 Cycles
Electrical Life	20,000 Steps	10,000 Steps	Not specified
Product Status	Obsolete	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

FR01FR10P-S (NKK Switches): This substitute maintains identical electrical specifications (BCD, 10-position, 100mA, 5VDC) and is manufactured by the same supplier as the obsolete DRFR10P. The FR01 series is active and ROHS3 compliant. The primary trade-off is reduced mechanical and electrical life (10,000 steps versus 20,000 steps) and lower profile height (0.150" versus 0.232"). This substitute is optimal for applications where the lower profile accommodates PCB layout constraints and the reduced cycle life is acceptable.

94HAB10T (Grayhill Inc.): This substitute provides higher voltage rating capability (50VDC versus 5VDC) while maintaining the 100mA current rating and BCD 10-position configuration. The Grayhill component is sealed and ROHS3 compliant. Height above board (0.225") is comparable to the original. This substitute is suitable for applications requiring voltage margin or operating in environments with potential voltage transients. Mechanical life specification (10,000 cycles) is equivalent to the FR01FR10P-S.

Both substitutes are currently in active production with established supply chains and regulatory compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can FR01FR10P-S be used as a direct replacement for DRFR10P in existing designs?

A: Yes, provided the PCB layout accommodates the reduced height (0.150" versus 0.232"). Electrical functionality is identical at 5VDC, 100mA, BCD 10-position operation. Mechanical life is reduced from 20,000 to 10,000 steps, which may impact applications with high actuation frequency.

Q: What is the primary advantage of 94HAB10T over FR01FR10P-S?

A: The 94HAB10T operates at 50VDC maximum voltage versus 5VDC for FR01FR10P-S. This higher voltage rating provides margin in applications subject to voltage transients or where future voltage requirements may increase. Both maintain identical current rating and position count.

Q: Are there packaging differences between these substitutes?

A: FR01FR10P-S and 94HAB10T are both supplied in tube packaging. The original DRFR10P packaging is not specified in available documentation. Tube packaging is standard for through-hole rotary DIP switches and presents no compatibility issues for PCB assembly.

Q: Do all three parts meet current regulatory requirements?

A: FR01FR10P-S and 94HAB10T are both ROHS3 compliant and REACH unaffected. The obsolete DRFR10P RoHS status is not specified. Both active substitutes meet current regulatory requirements for new designs.

Q: What is the impact of different mechanical life ratings?

A: DRFR10P specifies 20,000 mechanical steps; both substitutes specify 10,000 steps or cycles. In applications with infrequent adjustment (typical for DIP switch configuration), this difference has minimal practical impact. High-frequency actuation applications should evaluate actual usage patterns against specified life ratings.

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