1/4" JACKS

1/4" COMMERCIAL RIGHT ANGLE JACKS
SERIES SN37, SN49, AND SN70

1. SN37A14B with cover Number P2993
2. SN49B12B with cover Number P2994
3. SN49A12B
4. SN49C12B
5. SN70B12A
6. SN70C14B

These low-profile phone jacks have "snap-in" PC mounting, right-angle plug insertion and available with 2- and 3-conductor circuits and plastic or metal bushings. Ideal for telecommunications, data processing and other high quality audio connecting applications.

SERIES SN37A - Right-angle PC mount phone jack with molded plastic housing. Only .375 inches high, this jack features a plain (non-threaded) bushing and accepts commercial standard phone plugs with .25 inch diameter finger.

Jack circuit selection:

2-conductor * Single open circuit * Shunted tip

3-conductor * Double open circuit * Shunted tip and ring

Jack housing snaps into PC boards (.062 inches thick) and features molded tension fingers to provide stable mount. Location pin polarizes mounting for correct insertion every time. Clearance between housing facilitates board cleaning without distrubing internal springs. SN37 without tension fingers available on special order.

Molded housing protects internal parts and allows high density packaging. Supplied with "Snap-On" cover.

SERIES SN49A - Similar to Series SN37A, except .492 inches high and insulated/plain (non-threaded) bushing. "Snap-On" cover available on special order only.

SERIES SN49B - Similar to Series SN37A, except .492 inches high and insulated threaded bushing. Washer and hex nut for bushing mount supplied. "Snap-On" cover available on special order only.

SERIES SN49C - Similar to Series SN37A, except .492 inches high and threaded metal bushing. Washer and hex nut for bushing mount supplied. "Snap-On" cover not available.

SERIES SN70B - This series features threaded/insulated bushing and .708 inches in height. Circuit selection and housing features are same as Series SN49B. "Snap-On" cover not available.

SERIES SN70C - Same as Series SN70B, except bushing is threaded metal type.

SPECIFICATIONS

MECHANICAL

Shock: Per MIL-STD-202, method 213.

Vibration: Per MIL-STD-202, method 201.

Insertion Force: 8 pounds maximum.

Withdrawal Force: 1.5 pounds minimum.

Life: 10,000 cycles minimum.

ELECTRICAL

Insulation Resistance: 2 x 106 M(omega) at 500 V DC per MIL-STD-202, method 302 (initial).

Dielectric Withstanding Voltage: 500 V AC.

ENVIRONMENTAL

Thermal Range: -55°C (-67°F) to +85°C (+185°F) Non operating. -20°C to + 65°C Operating.

Thermal Shock: Per MIL-STD-202d, method 107.

Humidity: Per MIL-STD-202, method 106, less steps 7A and 7B.

Salt Spray: Per MIL-STD-202, method 101.

MATERIAL

Housing and Cover: Black thermoplastic, UL 94V-O.

Contact Springs: Copper alloy with tin-plated terminals.

Hardware: Nickel-plated copper alloy.

Metal Bushing: Nickel-plated copper alloy.

 

1/4" RA/SN Jack Part Numbering System
Series	Bushing Option	Circuitry
1/4" Right-Angle PC mount jack with bifurcated PC terminals.	11 - (RN only) Insulated, threaded bushing, .375" Height Off Board.	1 - I
1/4" Right-Angle PC mount jack Housing snaps to PC board.	37A - (SN only) Insulated, nonthreaded bushing, .375" Height Off Board.	2A - III
1/4" Right-Angle PC mount jack that accepts commercial or Mil plugs	49A - (SN only) Insulated, nonthreaded bushing, .492" Height Off Board.	2B - IV
	49B - (RA or SN only) Insulated, threaded bushing, .492" Height Off Board.	3B - VII *
	49C - (RA or SN only) Metal, threaded bushing, .492" Height Off Board.	3F - XXVIII *
	70B - (RA or SN only) Insulated, threaded bushing, .708" Height Off Board.	4B - XII
	70C - (RA or SN only) Metal, threaded bushing, .708" Height Off Board.
* - These circuits are only available in RN11 series jacks.

ORDERING INFORMATION
SERIES SN Part Numbers	Description	Jack2 Schematic	Typical Mating Plug3
SN37A111	2-cond., open circuit	I	250
SN37A12A1	2-cond., single closed circuit	III
SN37A12B1	3-cond., double open circuit	IV	267
SN37A14B1	3-cond., double closed circuit	XII
SN49A111	2-cond., open circuit	I	250
SN49A12A1	2-cond., single closed circuit	III
SN49A12B1	3-cond., double open circuit	IV	267
SN49A14B1	3-cond., double closed	XII
SN49B111	circuit2-cond., open circuit	I	250
SN49B12A1	2-cond., single closed circuit	III
SN49B12B1	3-cond., double open circuit	IV	267
SN49B14B1	3-cond., double closed	XII
SN49C11	circuit2-cond., open circuit	I	250
SN49C12A	2-cond., single closed circuit	III
SN49C12B	3-cond., double open circuit	IV	267
SN49C14B	3-cond., double closed	XII
SN70B11	circuit2-cond., open circuit	I	250
SN70B12A	2-cond., single closed circuit	III
SN70B12B	3-cond., double open circuit	IV	267
SN70B14B	3-cond., double closed	XII
SN70C11	circuit2-cond., open circuit	I	250
SN70C12A	2-cond., single closed circuit	III
SN70C12B	3-cond., double open circuit	IV	267
SN70C14B	3-cond., double closed circuit	XII
1 Series SN37A supplied with Part Number P2993 cover. Series SN49A and SN49B can be supplied with Part Number P2994 cover on special order. Contact Switchcraft.

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