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638-078-330 D - Subminiature receptacles w Series

D - Subminiature receptacles with 78 contacts

The 638-078-330 D series from EDAC Inc. is a subminiature receptacle designed for high-density applications. These receptacles feature 78 contacts, making them ideal for compact connectors in space-constrained environments. If you're working on devices that require a dense number of connections but have limited physical space, these receptacles are a great fit. One thing worth noting is their robust design, which allows for repeated mating cycles without compromising performance—a critical aspect in many industrial and consumer electronics applications. Engineers tend to reach for this series when they need a reliable, high-contact-count solution in a small form factor. They’re commonly used in portable electronic devices, medical equipment, and automotive systems where every millimeter counts. The ability to pack so many contacts into such a small package makes these receptacles indispensable for engineers looking to integrate multiple functionalities into a single, compact unit.

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637_638series_dsub.pdf

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638-078-330 D - Subminiature receptacles w - Part List

6 parts in total

Mounting Type

.125 in. (3.18mm) dia. through-hole(1)#4-40 UNC threaded insert(1)#4-40 UNC threaded standoff(1)#4-40 UNC threaded insert w/ boardlocks(1)#4-40 UNC threaded standoff w/ boardlocks(1)#4-40 UNC threaded fixed standoffs(1)

Mfr Part #	Category	Contact Resistance	Voltage - Breakdown	Current Rating (Max)	Insulation Resistance	Plating	Contact Type	Mounting Type	Contact Finish	Shell Material	Operating Force	Contact Material	Material - Insulation	Ferrite Specifications	Supplier Device Package	Type	Card Standard	Number of Positions/Contacts	Operating Temperature
638-078-330-041 CONN D-SUB RCPT 78POS VERT T/H D-Subminiature Type: Receptacle Total Contacts: 78 Plating: 15? (0.38?m) (Class 2) Mounting Option: .125 (3.18mm) dia. through-hole EDAC Inc.	-	10 milliohms maximum.	1000V AC rms at sea level.	5 amperes.	5000 megohms minimum.	15? (0.38?m) (Class 2)	Low profile PC tails, .157 (4.00mm)	.125 in. (3.18mm) dia. through-hole	Gold (see Ordering Code) over nickel for the mating area, tin/lead plating on contact tails.	Nickel-plated steel. (Tin/lead optional)	1 to 10 oz. (0.28 to 2.78 N) per contact position.	Plug - brass; receptacle contacts - phosphor bronze.	Thermoplastic polyester, UL 94V-0; chemical resistant; colour - black.	Attenuation - 20dB MIN @ 30Mhz, 30dB MIN @ 50Mhz and 50dB MIN @ 100Mhz.	Metal covered .276 (7.00mm) low profile	Connectors & Jacks	D-Subminiature	78	-55° to +125° C.
638-078-330-042 CONN D-SUB RCPT 78POS VERT T/H D-Subminiature Type: Receptacle Total Contacts: 78 Plating: 15? (0.38?m) (Class 2) Mounting Option: #4-40 UNC threaded inserts EDAC Inc.	-	10 milliohms maximum.	1000V AC rms at sea level.	5 amperes.	5000 megohms minimum.	15? (0.38?m) (Class 2)	Low profile PC tails, .157 (4.00mm)	#4-40 UNC threaded insert	Gold (see Ordering Code) over nickel for the mating area, tin/lead plating on contact tails.	Nickel-plated steel. (Tin/lead optional)	1 to 10 oz. (0.28 to 2.78 N) per contact position.	Plug - brass; receptacle contacts - phosphor bronze.	Thermoplastic polyester, UL 94V-0; chemical resistant; colour - black.	Attenuation - 20dB MIN @ 30Mhz, 30dB MIN @ 50Mhz and 50dB MIN @ 100Mhz.	Metal covered .276 (7.00mm) low profile	Connectors & Jacks	D-Subminiature	78	-55° to +125° C.
638-078-330-043 CONN D-SUB RCPT 78POS VERT T/H D-Subminiature Type: Receptacle Total Contacts: 78 Plating: 15? (0.38?m) (Class 2) Mounting Option: #4-40 UNC threaded standoffs EDAC Inc.	-	10 milliohms maximum.	1000V AC rms at sea level.	5 amperes.	5000 megohms minimum.	15? (0.38?m) (Class 2)	Low profile PC tails, .157 (4.00mm)	#4-40 UNC threaded standoff	Gold (see Ordering Code) over nickel for the mating area, tin/lead plating on contact tails.	Nickel-plated steel. (Tin/lead optional)	1 to 10 oz. (0.28 to 2.78 N) per contact position.	Plug - brass; receptacle contacts - phosphor bronze.	Thermoplastic polyester, UL 94V-0; chemical resistant; colour - black.	Attenuation - 20dB MIN @ 30Mhz, 30dB MIN @ 50Mhz and 50dB MIN @ 100Mhz.	Metal covered .276 (7.00mm) low profile	Connectors & Jacks	D-Subminiature	78	-55° to +125° C.
638-078-330-046 CONN D-SUB RCPT 78POS VERT T/H D-Subminiature Type: Receptacle Total Contacts: 78 Plating: 15? (0.38?m) (Class 2) Mounting Option: #4-40 UNC threaded insert w/ boardlocks EDAC Inc.	-	10 milliohms maximum.	1000V AC rms at sea level.	5 amperes.	5000 megohms minimum.	15? (0.38?m) (Class 2)	Low profile PC tails, .157 (4.00mm)	#4-40 UNC threaded insert w/ boardlocks	Gold (see Ordering Code) over nickel for the mating area, tin/lead plating on contact tails.	Nickel-plated steel. (Tin/lead optional)	1 to 10 oz. (0.28 to 2.78 N) per contact position.	Plug - brass; receptacle contacts - phosphor bronze.	Thermoplastic polyester, UL 94V-0; chemical resistant; colour - black.	Attenuation - 20dB MIN @ 30Mhz, 30dB MIN @ 50Mhz and 50dB MIN @ 100Mhz.	Metal covered .276 (7.00mm) low profile	Connectors & Jacks	D-Subminiature	78	-55° to +125° C.
638-078-330-047 CONN D-SUB RCPT 78POS VERT T/H D-Subminiature Type: Receptacle Total Contacts: 78 Plating: 15? (0.38?m) (Class 2) Mounting Option: #4-40 UNC threaded standoff w/ boardlocks EDAC Inc.	-	10 milliohms maximum.	1000V AC rms at sea level.	5 amperes.	5000 megohms minimum.	15? (0.38?m) (Class 2)	Low profile PC tails, .157 (4.00mm)	#4-40 UNC threaded standoff w/ boardlocks	Gold (see Ordering Code) over nickel for the mating area, tin/lead plating on contact tails.	Nickel-plated steel. (Tin/lead optional)	1 to 10 oz. (0.28 to 2.78 N) per contact position.	Plug - brass; receptacle contacts - phosphor bronze.	Thermoplastic polyester, UL 94V-0; chemical resistant; colour - black.	Attenuation - 20dB MIN @ 30Mhz, 30dB MIN @ 50Mhz and 50dB MIN @ 100Mhz.	Metal covered .276 (7.00mm) low profile	Connectors & Jacks	D-Subminiature	78	-55° to +125° C.
638-078-330-048 CONN D-SUB RCPT 78POS VERT T/H D-Subminiature Type: Receptacle Total Contacts: 78 Plating: 15? (0.38?m) (Class 2) Mounting Option: #4-40 UNC threaded fixed standoffs EDAC Inc.	-	10 milliohms maximum.	1000V AC rms at sea level.	5 amperes.	5000 megohms minimum.	15? (0.38?m) (Class 2)	Low profile PC tails, .157 (4.00mm)	#4-40 UNC threaded fixed standoffs	Gold (see Ordering Code) over nickel for the mating area, tin/lead plating on contact tails.	Nickel-plated steel. (Tin/lead optional)	1 to 10 oz. (0.28 to 2.78 N) per contact position.	Plug - brass; receptacle contacts - phosphor bronze.	Thermoplastic polyester, UL 94V-0; chemical resistant; colour - black.	Attenuation - 20dB MIN @ 30Mhz, 30dB MIN @ 50Mhz and 50dB MIN @ 100Mhz.	Metal covered .276 (7.00mm) low profile	Connectors & Jacks	D-Subminiature	78	-55° to +125° C.

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