COMPONENTS PRODUCT INFORMATION NEW RoHS Compliant CONNECTOR Circular Connector MB-0219-2 March 2013 K Series Socket Insert Pin Insert Straight Plug K-21C K-22C Receptacle K-31S K-32S Accessories Dust Cap Barrel Adaptor Overview The K Series is a solder-type general purpose circular connector, compatible for use under normal environmental conditions. The outer shell is made from aluminum alloy so it is both light and robust. The special threading (square threads) of the coupling nut allow for easy mating and un-mating. Applications Broadcasting equipment, sound equipment, communication devices, etc. JAE PMK Div. Proprietary. Copyright © 2013, Japan Aviation Electronics Industry, Ltd. 1/7 MB-0219-2 Features Specially threaded coupling lock for easy mating and un-mating To mate connector, push in the plug then rotate and the fix coupling nut. The coupling nut utilizes special threads (square threads) so mating and un-mating can be done easily with just a slight rotation. Light and robust Outer shell is made of light and robust aluminum alloy material. This product has excellent reliability, with development based on MIL-C-5015 (US military standard). Stable contact connection Pin and socket contacts are made with precision from copper alloy with superior conductivity. For contact area of socket contact, beryllium copper with spring characteristics are wound around for a constantly stable pin and socket connection. Close-fit structure The opening for the socket insulator and the socket contact in which the pin contacts are inserted have a close-fit (perfectly cylindrical) structure. This keeps the socket contact in a constant excellent condition since there is no effect on the spring area. This is important for maintaining a good connection even if twisting occurs inside the socket contact, and also for preventing the insertion of parts, such as test terminals, with a diameter wider than the pin. Mis-mating countermeasure Positioning guide key and key groove are on the metal shell connection area (barrel). The connector will always be mated correctly guided by this key. Securing wire holes to prevent un-mating For circumstances when strong vibration and shock is applied to connector, wire can be passed through the hole on the coupling nut to fix and prevent loosening of the nut. Not needed for regular use. Securing Hole Shell Barrel Positioning Key Groove for Positioning Key Cable Clamp Coupling Nut Coupling Threads JAE PMK Div. Proprietary. Copyright © 2013, Japan Aviation Electronics Industry, Ltd. 2/7 MB-0219-2 General Specifications Item Specification and Performance Rated Current 10A per pos. (Note 1) Contact Resistance (initial) 49mV max. (test current 13A) Dielectric Withstanding Voltage 1300 VAC (per 1 minute) Insulation Resistance 5000M min. (DC500V energized) Applicable Wire Size 16 AWG (1.25mm2) max. Mating Cycles 500 times Specification JACS-1009 Note1) Maximum current that can pass through connector is calculated using the Number of Contacts multiplied by the Reduction Rate from the chart below. However, individual contacts in insulator may not exceed per-contact rated current. No. of Contacts Reduction Rate (%) No. of Contacts Reduction Rate (%) No. of Contacts Reduction Rate (%) 1 100.0 6 71.4 11 42.9 2 94.3 7 65.7 12 37.1 3 88.6 8 60.0 13 31.4 4 82.9 9 54.3 14 25.7 5 77.1 10 48.6 15 + 20 Ex. For 27 position connector 27 pos. x 10A x 20% = 54A 54A will be the total current amount that can be passed through connector. Maximum current per contact is 10A. Materials and Finishes Component Material Finish Contact Copper alloy Silver plating Insulator Synthetic resin - Outer Shell Aluminum alloy Zinc plating Contact Array Array Type NK-27 FK-37 No. of Contacts 27 pos. 37 pos. # 16 x 27 # 16 x 37 Array Array of pin inserts viewed from mating side Contact Configuration JAE PMK Div. Proprietary. Copyright © 2013, Japan Aviation Electronics Industry, Ltd. 3/7 MB-0219-2 Ordering Information Plug N K- 27 - 22C - 3/4 -R Special Key Shell Size (Coupling nut diameter) N: 1-9/16 inch F: 1-13/16 inch Cable Entry Diameter (Applicable cable size) 3/4: 16.3 dia. to 19.0 dia. 7/8: 19.4 dia. to 22.2 dia. Series: K No. of Contacts 27: 27 pos. 37: 37 pos. Connector Shape and Insert Type 21C: Straight plug, socket insert 22C: Straight plug, pin insert N K - 27 - 31S - R Receptacle Special Key Shell Size (Coupling nut diameter) N: 1-9/16 inch F: 1-13/16 inch Connector Shape and Insert Type 31S: Receptacle, socket insert 32S: Receptacle, pin insert Series: K No. of Contacts 27: 27 pos. 37: 37 pos. Part Number List No. of Contacts Type Receptacle 27 Straight Plug NK-27 Barrel Adapter Dust Cap Receptacle 37 FK-37 Straight Plug Barrel Adapter Dust Cap Part Number SJ Drawing Shape NK-27-31S-R SJ104838 Socket Insert NK-27-32S-R SJ104839 Pin Insert NK-27-22C-3/4-R SJ104833 Pin Insert: Cable entry diameter 16.3 dia. to 19.0 dia. NK-27-22C-7/8-R SJ104833 Pin Insert: Cable entry diameter 19.4 dia. to 22.2 dia. NK-27-21C-3/4-R SJ104841 Socket Insert: Cable entry diameter 16.3 dia. to 19.0 dia. NK-27-21C-7/8-R SJ104841 Socket Insert: Cable entry diameter 19.4 dia. to 22.2 dia. NK-AD1-R SJ104851 NK-60A-2-R SJ104848 For Socket Insert NK-59A-2-R SJ104837 For Pin Insert FK-37-31S-R SJ104838 Socket Insert FK-37-32S-R SJ104839 Pin Insert FK-37-22C-7/8-R SJ104833 Pin Insert: Cable entry diameter 19.4 dia. to 22.2 dia. FK-37-21C-7/8-R SJ104841 Socket Insert: Cable entry diameter 19.4 dia. to 22.2 dia. FK-AD2-R SJ104849 FK-60A-2-R SJ104848 For Socket Insert FK-59A-2-R SJ104837 For Pin Insert JAE PMK Div. Proprietary. Copyright © 2013, Japan Aviation Electronics Industry, Ltd. 4/7 MB-0219-2 Socket Insert Straight Plug K-21C Straight plug with socket insert. Mated with (pin insert): K-32S Part Number L 1.2 Dia. Q 0.8 Screw Thread (V) Dia. C 0.4 NK-27-21C-3/4-R 54.8 44.1 1-9/16-6 NK-27-21C-7/8-R 54.8 44.1 FK-37-21C-7/8-R 58.7 51.2 Pin Insert Applicable Cable Size MAX MIN 19.8 19.0 16.3 1-9/16-6 23.0 22.2 19.4 1-13/16-6 23.0 22.2 19.4 Straight Plug K-22C Straight plug with pin insert. Mated with (socket insert): K-31S Part Number L 1.2 Dia. C 0.4 Screw Thread (V) NK-27-22C-3/4-R 50.0 19.8 NK-27-22C-7/8-R 50.0 FK-37-22C-7/8-R 54.8 Socket Insert Applicable Cable Size MAX MIN 1-9/16-6 19.0 16.3 23.0 1-9/16-6 22.2 19.4 23.0 1-13/16-6 22.2 19.4 Receptacle K-31S Box shaped receptacle with socket insert. Used by attaching to panel or main case Mated with (pin insert): K-22C Part Number L 1.2 Dia. Q 0.8 S 0.8 R 0.13 K 0.4 Dia. T 0.13 Screw Thread (V) NK-27-31S-R 31.0 44.1 41.3 31.98 2.4 4.29 1-9/16-6 FK-37-31S-R 31.8 51.2 47.6 38.15 2.4 4.29 1-13/16-6 JAE PMK Div. Proprietary. Copyright © 2013, Japan Aviation Electronics Industry, Ltd. 5/7 MB-0219-2 Pin Insert Receptacle K-32S Box shaped receptacle with pin insert. Used by attaching to panel or main case Mated with (socket insert): K-21C Part Number L 0.4 M 0.4 Dia. N 0.4 S 0.8 R 0.13 Dia. T 0.13 K P max. Screw Thread (V) NK-27-32S-R 19 11.1 34.9 41.3 31.98 3.66 3.2 11.1 1-9/16-6 FK-37-32S-R 19 11.1 41.3 47.6 38.18 3.66 3.2 11.1 1-13/16-6 Dust Cap [K-59A-2] Used to protect mating surface, keeping out dust and other foreign substance, and to prevent danger caused by electrical circuit of disengaged connector mating surface. Part Number Applicable Size Dia. A 0.4 B 0.4 D 6.4 Screw Thread (V) Dia. F 0.13 NK-59A-2-R NK 42.9 17.5 100.0 1-9/16-6 4.2 FK-59A-2-R FK 50.0 17.5 120.0 1-13/16-6 4.2 Part Number Applicable Size Dia. A 0.4 B 0.4 D 6.4 Screw Thread (V) Dia. F 0.13 NK-60A-2-R NK 42.9 9.5 90.0 1-9/16-6 4.2 FK-60A-2-R FK 50.0 9.5 120.0 1-13/16-6 4.2 [K-60A-2] JAE PMK Div. Proprietary. Copyright © 2013, Japan Aviation Electronics Industry, Ltd. 6/7 MB-0219-2 Barrel Adaptor K-AD* Barrel adaptor is a part to enlarge terminal area space of plug contact. Assembled between endbell of plug and barrel and fixed with screw. This product is not usually needed but is useful when there is difficulty in termination. Part Number Applicable Size Dia. A 0.8 B+0.8 Dia. C 0.8 NK-AD1-R NK 38.1 34.1 31.8 FK-AD2-R FK 44.3 32.5 38.0 Barrel Adaptor Panel mounting hole patterns (for reference) For front mounting (when attaching receptacle on the front side of the panel or main body) Dia. A 4 - Dia. C B Part Number Dia. A 0.5 B 0.13 Dia. C 0.13 NK-27-31S-R 36.9 31.98 4.4 FK-37-31S-R 43.3 38.15 4.4 NK-27-32S-R 36.9 31.98 3.8 FK-37-32S-R 43.3 38.18 3.8 B Notice: Products shown in this brochure are made Product Marketing Division Aobadai Building, 3-1-19, Aobadai, Meguro-ku, Tokyo 153-8539 Phone: +81-3-3780-2882 FAX: +81-3-3780-2946 for the applications listed below. However, if the above-mentioned products are to be used in aerospace devices, marine cable-connection devices, atomic power control systems, medical equipment for lifesupport systems, or any other specific application requiring extremely high reliability, please contact JAE for further information. Recommended applications: Computers, Office machines, Measuring devices, Telecommunication devices (Terminals, Mobile devices), AV devices, Household applications, FA devices, etc. * The specifications in this brochure are subject to change without notice. Please contact JAE for information. JAE PMK Div. Proprietary. Copyright © 2013, Japan Aviation Electronics Industry, Ltd. 7/7