Switchcraft

Previous Page | Return to Index | Next Page

1/4" PHONE JACKS
LOCKING AND THICK PANEL PHONE JACKS

1. LOCKING PHONE JACK SERIES E
2. THICK PANEL PHONE JACK 151

click here to download a schematic drawing
(you will need to have Adobe Acrobat installed on your system to do this)

LOCKING PHONE JACKS
SERIES E
Series E jacks provide stable, secure connections in panels where shock/vibration or accidental disconnect may occur. Plug locks-in automatically upon insertion; press "PUSH" tab to unlock and remove plug. Series E jacks have the same front panel appearance as Series E Q-GŽ audio connectors.
SPECIFICATIONS
MECHANICAL
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: 1,000 V AC (rms).
ENVIRONMENTAL
Thermal Range: -55°C to +85°C (non-operating); -20°C to
+65°C (operating).
Thermal Shock: Per MIL-STD-202, method 107.
Humidity: Per MIL-STD-202, method 106.
Salt Spray: Per MIL-STD-202, method 101.
MATERIAL
Shell: Die-cast zinc, with satin nickel-plating.
Black chrome over nickel-plating on special order.
Insert and Latch: Thermoplastic, UL 94V-O.
Latch Release: Nickel-plated die-cast zinc.
Contact Springs: Tin-plated copper alloy.

Part Number
Description
Jack Schematic¹
Typical Mating Plug²

E111L
2-cond., open circuit
I
250

E112BL 3-cond., double open circuit IV 267

¹ See Jack Schematics, pages 65 and 66
2 See Plugs Section

THICK PANEL PHONE JACKSJacks are standard 2- and 3-conductor phone jacks with extra long threaded bushing for mounting in panels/chassis up to 1.25 inches thick. Metal bushing virtually eliminates hum pick-up, and is ideal for electric guitar and speaker connections. Jacks mate with standard commercial phone plugs. See plug section for mating plugs. Jacks mount in a single .469 inch diameter hole. Rugged cable clamp protects connections from twisting and pulling stresses.
SPECIFICATIONS
MATERIAL
Mounting Bushing: Nickel-plated copper alloy with
knurled flange.
Insulating Spacer: Rigid plastic.
Insulator/Spring Mount: Thermoplastic.
Springs: Copper alloy.
Terminals: Tip: Copper alloy. Ring: (Number 152B only)
copper alloy. Sleeve: Steel, tin-plated.
Hardware: Supplied with one, Number P10531 nickel-plated
copper alloy hex nut, and one, Number P1476 nickel-plated
copper alloy flat washer.

Part Number
Description
Jack Schematic¹

151
2-conductor, open circuit
I

152B 3-conductor, open circuit IV

Previous Page | Return to Index | Next Page

Part Number	Description	Jack Schematic¹	Typical Mating Plug²
E111L	2-cond., open circuit	I	250
E112BL	3-cond., double open circuit	IV	267
¹ See Jack Schematics, pages 65 and 66 2 See Plugs Section