BPA06K Equivalent & Substitute Parts

Part Overview

The BPA06K is a 6-position DIP switch manufactured by C&K, featuring SPST (Single Pole Single Throw) circuit configuration with piano actuator, rated for 100mA at 5VDC. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The BPA06K provides through-hole, right-angle mounting with PC pin termination and operates across -20°C to 85°C temperature range.

Key Parameters

Parameter	Value
Manufacturer Part Number	BPA06K
Manufacturer	C&K
Circuit Configuration	SPST
Number of Positions	6
Current Rating	100mA
Voltage Rating	5VDC
Actuator Type	Piano (Raised)
Mounting Type	Through Hole, Right Angle
Pitch	0.100" (2.54mm)
Height Above Board	0.287" (7.30mm)
Operating Temperature	-20°C ~ 85°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the BPA06K is determined by the following critical parameters: circuit configuration (SPST), number of positions (6), actuator type (piano), mounting method (through hole, right angle), pitch (0.100"), and physical dimensions (height 0.287", length 0.677"). Electrical parameters including current rating, voltage rating, contact material, and contact finish may vary within acceptable ranges depending on application requirements.

Two substitute parts are identified:

Direct Substitute (BPA06B): Maintains identical mechanical and electrical specifications with improved compliance status and contact material upgrade.

Similar Substitute (1-1571999-6): Maintains identical mechanical configuration and circuit topology but operates at different voltage and current ratings, requiring application-level compatibility verification.

Parameter Comparison

Parameter	BPA06K (Main)	BPA06B (Direct)	1-1571999-6 (Similar)
Manufacturer	C&K	C&K	TE Connectivity ALCOSWITCH
Circuit Configuration	SPST	SPST	SPST
Number of Positions	6	6	6
Current Rating	100mA	100mA	25mA
Voltage Rating	5VDC	5VDC	24VDC
Actuator Type	Piano (Raised)	Piano (Raised)	Piano (Raised)
Contact Material	Phosphor Bronze	Beryllium Copper	Copper Alloy
Contact Finish	Tin	Gold	Gold
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Height Above Board	0.287" (7.30mm)	0.287" (7.30mm)	0.287" (7.30mm)
Length	0.677" (17.20mm)	0.677" (17.20mm)	0.678" (17.22mm)
Operating Temperature	-20°C ~ 85°C	-20°C ~ 85°C	-30°C ~ 85°C
Mechanical Life	1,000 Cycles	1,000 Cycles	1,000 Cycles
Electrical Life	1,000 Cycles	1,000 Cycles	1,000 Cycles
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

BPA06B (Recommended Direct Substitute): This C&K part maintains full electrical and mechanical compatibility with the BPA06K while offering active product status and ROHS3 compliance. The upgrade from phosphor bronze with tin finish to beryllium copper with gold finish provides enhanced contact reliability and environmental resistance. Selection of BPA06B is appropriate for applications requiring direct form-fit-function replacement without circuit modification.

1-1571999-6 (Application-Dependent Substitute): This TE Connectivity part maintains identical mechanical configuration and circuit topology but operates at 24VDC/25mA versus the BPA06K's 5VDC/100mA specification. This part is suitable only for applications where the circuit voltage and current requirements align with 24VDC/25mA operation. The extended operating temperature range (-30°C to 85°C) provides additional thermal margin. ROHS3 compliance and active product status support long-term availability.

Frequently Asked Questions (FAQ)

Q: Can BPA06B be used as a direct replacement for BPA06K without PCB modifications?

A: Yes. BPA06B maintains identical pitch (0.100"), height (0.287"), length (0.677"), mounting type (through hole, right angle), and electrical ratings (100mA, 5VDC). No PCB layout changes are required.

Q: What are the key differences between BPA06B and 1-1571999-6?

A: BPA06B operates at 5VDC/100mA matching the original BPA06K specification. The 1-1571999-6 operates at 24VDC/25mA, requiring circuit-level compatibility verification. Both maintain identical mechanical configuration and 6-position SPST topology.

Q: Is the BPA06K still available for procurement?

A: The BPA06K is classified as obsolete. BPA06B (active status, 1135 units in stock) and 1-1571999-6 (active status, 22017 units in stock) are available alternatives.

Q: Does contact material change from phosphor bronze to beryllium copper affect performance?

A: Contact material and finish changes do not affect switching function or electrical ratings. Beryllium copper with gold finish in BPA06B provides improved contact resistance stability and corrosion resistance compared to phosphor bronze with tin finish in BPA06K.

Q: What packaging is available for substitute parts?

A: Both BPA06B and 1-1571999-6 are supplied in tube packaging.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both BPA06B and 1-1571999-6 are ROHS3 compliant, whereas the original BPA06K is RoHS non-compliant.

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