How do the Kycon, Inc. K42X Series variants differ?

Kycon, Inc. K42X Series part numbers differ by backset spacing, connector type, contact material and current rating. Use the selection guide above to pick by backset spacing.

How many Kycon, Inc. K42X Series part numbers are listed?

15 Kycon, Inc. K42X Series part numbers are listed, each with specifications and a datasheet where available.

Kycon, Inc. K42X Series

15 variants · Kycon, Inc.

About the Kycon, Inc. K42X Series

The Kycon, Inc. K42X Series series groups 15 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common color of Black, contact finish of Gold and contact finish thickness of Flash. Variants differ by backset spacing, connector type and contact material, so you can match the exact backset spacing your application requires using the selection guide below. All listed Kycon, Inc. K42X Series part numbers are active and orderable.

Select a variant by

Backset spacing: 0.318\" (8.08mm) · 0.350\" (8.89mm)
Connector type: Plug, Male Pins · Plug, Male Pins; Receptacle, Female Sockets · Receptacle, Female Sockets
Contact material: Brass · Brass, Phosphor Bronze · Phosphor Bronze
Current rating: 1.2A · 2A
Dielectric material: Polybutylene Terephthalate (PBT) · Polybutylene Terephthalate (PBT), Glass Filled
Features: Board Lock, Grounding Indents, Mounting Brackets · Board Lock, Mounting Brackets
Flange feature: Housing/Shell (4-40) · Mating Side, Female Screwlock (4-40)
Positions: 9, 9 · 9, 15 · 15, 15 · 25, 25

Shared specifications

Color: Black
Contact finish: Gold
Contact finish thickness: Flash
Gender: Signal
Material flammability rating: UL94 V-0
Mounting type: Through Hole, Right Angle
Operating temperature: -55°C ~ 105°C
Package: Tray
Shell material, finish: Steel, Nickel Plated
Termination: Solder
Voltage rating: 30V

Variant comparison

Parameter	K42X-A15S/S-A4N	K42X-B25P/P-A4NJ	K42X-B25P/S-A4N	K42X-B25S/P-A4N	K42X-B25S/S-A4N	K42X-E15S/P-A4N
Backset spacing	0.318\" (8.08mm)	0.318\" (8.08mm)	0.318\" (8.08mm)	0.318\" (8.08mm)	0.318\" (8.08mm)	0.350\" (8.89mm)
Connector type	Receptacle, Female Sockets	Plug, Male Pins	Plug, Male Pins; Receptacle, Female Sockets	Plug, Male Pins; Receptacle, Female Sockets	Receptacle, Female Sockets	Plug, Male Pins; Receptacle, Female Sockets
Contact material	Phosphor Bronze	Brass	Brass, Phosphor Bronze	Brass, Phosphor Bronze	Phosphor Bronze	Brass, Phosphor Bronze
Current rating	2A	1.2A	1.2A	1.2A	1.2A	1.2A
Dielectric material	Polybutylene Terephthalate (PBT), Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled
Features	Board Lock, Mounting Brackets	Board Lock, Grounding Indents, Mounting Brackets	Board Lock, Grounding Indents, Mounting Brackets	Board Lock, Grounding Indents, Mounting Brackets	Board Lock, Mounting Brackets	Board Lock, Grounding Indents, Mounting Brackets
Flange feature	Housing/Shell (4-40)	Mating Side, Female Screwlock (4-40)	Housing/Shell (4-40)	Housing/Shell (4-40)	Housing/Shell (4-40)	Housing/Shell (4-40)
Positions	15, 15	25, 25	25, 25	25, 25	25, 25	15, 15

Request a quote on any Kycon, Inc. K42X Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

Frequently asked questions

How do the Kycon, Inc. K42X Series variants differ?: Kycon, Inc. K42X Series part numbers differ by backset spacing, connector type, contact material and current rating. Use the selection guide above to pick by backset spacing.
How many Kycon, Inc. K42X Series part numbers are listed?: 15 Kycon, Inc. K42X Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for Kycon, Inc. K42X Series?: Request a quote (RFQ) for any Kycon, Inc. K42X Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.