Connectors – Mouser Japan

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Backshells

Amphenol PCD Backshells offer strain relief, environmental protection, and 360° EMI/RFI shielding at the termination area of virtually any circular connector. These connectors feature a base material constructed of aluminum alloy, stainless steel, brass, or composite and a variety of finishes such as black zinc nickel, cadmium, electroless nickel, anodized black, passivated, and more. Amphenol PCD Backshells have custom designs available and meet or exceed RoHS/REACH compliance standards. Available in both military specifications and commercial types for any application, these backshells meet the Society of Automotive Engineers (SAE) AS85049 standard.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 15 M85049/1815N03 Amphenol PCD 1: ¥10,517.5 129In Stock	Mfr. Part # M85049/1815N03 Mouser Part # 523-85049/1815N03	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 15 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	129In Stock	¥10,517.5 ¥9,422.9 ¥8,856.5 ¥8,436.2 View ¥8,195.4 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI M85049/1815N04 Amphenol PCD 1: ¥11,424.4 116In Stock	Mfr. Part # M85049/1815N04 Mouser Part # 523-85049/1815N04	Amphenol PCD	Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	116In Stock	¥11,424.4 ¥9,906.2 ¥9,299.9 ¥9,010.9 View ¥8,512.6 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 15 M85049/1815N05 Amphenol PCD 1: ¥11,366.2 239In Stock	Mfr. Part # M85049/1815N05 Mouser Part # 523-85049/1815N05	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 15 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	239In Stock	¥11,366.2 ¥9,977.6 ¥7,967.8 ¥7,886.4 Quote Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 17 M85049/1817N04 Amphenol PCD 1: ¥10,642 198In Stock 150Expected 10/6/2026	Mfr. Part # M85049/1817N04 Mouser Part # 523-85049/1817N04	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 17 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	198In Stock 150Expected 10/6/2026	¥10,642 ¥9,587.3 ¥9,130.5 ¥8,695.3 View Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 17 M85049/1817N05 Amphenol PCD 1: ¥12,115.3 50In Stock	Mfr. Part # M85049/1817N05 Mouser Part # 523-85049/1817N05	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 17 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	50In Stock	¥12,115.3 ¥10,299.9 ¥10,198.5 ¥9,193.6 View ¥8,755.1 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI M85049/1821N05 Amphenol PCD 1: ¥12,303 49In Stock	Mfr. Part # M85049/1821N05 Mouser Part # 523-85049/1821N05	Amphenol PCD	Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	49In Stock	¥12,303 ¥10,494.2 ¥10,034.1 ¥9,368 ¥8,921.2	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 21 M85049/1821N08 Amphenol PCD 1: ¥12,821.3 42In Stock 50Expected 10/6/2026	Mfr. Part # M85049/1821N08 Mouser Part # 523-85049/1821N08	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 21 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	42In Stock 50Expected 10/6/2026	¥12,821.3 ¥11,083.9 ¥10,771.6 ¥10,411.1 ¥9,421.2	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23 M85049/1823N03 Amphenol PCD 1: ¥12,417.6 29In Stock	Mfr. Part # M85049/1823N03 Mouser Part # 523-85049/1823N03	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	29In Stock	¥12,417.6 ¥10,798.2 ¥10,122.1 ¥9,638.8 View ¥9,178.7 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23 M85049/1823N07 Amphenol PCD 1: ¥13,462.4 26In Stock	Mfr. Part # M85049/1823N07 Mouser Part # 523-85049/1823N07	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	26In Stock	¥13,462.4 ¥11,612.1 ¥10,884.5 ¥10,364.6 ¥9,871.3	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23 M85049/1823N09 Amphenol PCD 1: ¥13,802.9 46In Stock	Mfr. Part # M85049/1823N09 Mouser Part # 523-85049/1823N09	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	46In Stock	¥13,802.9 ¥12,042.3 ¥11,542.3 ¥11,075.5 ¥10,236.7	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 M85049/1825N04 Amphenol PCD 1: ¥13,337.8 25In Stock 25Expected 12/1/2026	Mfr. Part # M85049/1825N04 Mouser Part # 523-85049/1825N04	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	25In Stock 25Expected 12/1/2026	¥13,337.8 ¥11,517.4 ¥10,796.5 ¥10,283.3 View ¥9,793.3 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 M85049/1825N05 Amphenol PCD 1: ¥14,022.2 43In Stock	Mfr. Part # M85049/1825N05 Mouser Part # 523-85049/1825N05	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	43In Stock	¥14,022.2 ¥12,371.1 ¥11,725 ¥10,474.3 ¥9,974.3	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 M85049/1825N06 Amphenol PCD 1: ¥14,630.1 25In Stock	Mfr. Part # M85049/1825N06 Mouser Part # 523-85049/1825N06	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	25In Stock	¥14,630.1 ¥14,623.4 ¥13,703.3 View Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 M85049/1825N08 Amphenol PCD 1: ¥14,238.1 68In Stock 75Expected 10/6/2026	Mfr. Part # M85049/1825N08 Mouser Part # 523-85049/1825N08	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	68In Stock 75Expected 10/6/2026	¥14,238.1 ¥12,710 ¥12,708.3 ¥12,618.6 View ¥11,934.3 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 M85049/1825N08B Amphenol PCD 1: ¥14,435.8 21In Stock	Mfr. Part # M85049/1825N08B Mouser Part # 523-85049/1825N08B	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	21In Stock	¥14,435.8 ¥13,165.1 ¥12,866.1 ¥11,904.4 View Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 M85049/1825N09 Amphenol PCD 1: ¥14,754.7 21In Stock	Mfr. Part # M85049/1825N09 Mouser Part # 523-85049/1825N09	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	21In Stock	¥14,754.7 ¥12,613.6 ¥11,821.3 ¥11,258.3 ¥10,725.1	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 11 M85049/1911N02 Amphenol PCD 1: ¥9,474.3 48In Stock	Mfr. Part # M85049/1911N02 Mouser Part # 523-85049/1911N02	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 11 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	48In Stock	¥9,474.3 ¥8,054.2 ¥7,529.3 ¥7,187.1 View ¥6,845 ¥6,416.4	Min.: 1 Mult.: 1
Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI M85049/1911N03 Amphenol PCD 1: ¥9,735.1 163In Stock 100Expected 10/14/2026	Mfr. Part # M85049/1911N03 Mouser Part # 523-85049/1911N03	Amphenol PCD	Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	163In Stock 100Expected 10/14/2026	¥9,735.1 ¥8,275.1 ¥7,756.9 ¥7,388.1 View ¥7,034.3 ¥6,594.2	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 13 M85049/1913N02 Amphenol PCD 1: ¥9,148.8 273In Stock	Mfr. Part # M85049/1913N02 Mouser Part # 523-85049/1913N02	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 13 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	273In Stock	¥9,148.8 ¥7,778.5 ¥7,634 ¥7,378.2 View ¥7,117.4 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 13 M85049/1913N03 Amphenol PCD 1: ¥8,527.6 196In Stock	Mfr. Part # M85049/1913N03 Mouser Part # 523-85049/1913N03	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 13 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	196In Stock	¥8,527.6 ¥7,413 ¥7,281.8 ¥6,700.5 ¥6,635.7	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 13 M85049/1913N04 Amphenol PCD 1: ¥9,760 190In Stock	Mfr. Part # M85049/1913N04 Mouser Part # 523-85049/1913N04	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 13 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	190In Stock	¥9,760 ¥8,326.6 ¥7,803.4 ¥7,431.3 View ¥7,220.4 ¥6,635.7	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 15 M85049/1915N03 Amphenol PCD 1: ¥10,673.6 167In Stock	Mfr. Part # M85049/1915N03 Mouser Part # 523-85049/1915N03	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 15 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	167In Stock	¥10,673.6 ¥8,456.2 ¥7,622.3 Quote Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 15 M85049/1915N04 Amphenol PCD 1: ¥10,382.9 33In Stock	Mfr. Part # M85049/1915N04 Mouser Part # 523-85049/1915N04	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 15 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	33In Stock	¥10,382.9 ¥8,824.9 ¥8,271.8 ¥7,878.1 View ¥7,501.1 ¥7,497.8 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17 M85049/1917N03 Amphenol PCD 1: ¥10,137.1 85In Stock	Mfr. Part # M85049/1917N03 Mouser Part # 523-85049/1917N03	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	85In Stock	¥10,137.1 ¥8,790 ¥8,537.5 ¥8,321.6 View ¥7,615.7 ¥7,539.3 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17 M85049/1917N04 Amphenol PCD 1: ¥10,583.9 84In Stock	Mfr. Part # M85049/1917N04 Mouser Part # 523-85049/1917N04	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	84In Stock	¥10,583.9 ¥9,087.3 ¥8,703.6 ¥8,413 View ¥7,751.9 ¥7,735.3 Quote	Min.: 1 Mult.: 1