Space Type In-Line Bus Couplers

PART NUMBER : DE81****XX

MIL-STD-1553 bus couplers for space environments are engineered to offer robust communication solutions that withstand high temperatures, vibrations, and shock levels. With specifications adapted to the unique requirements of space operations, such as advanced potting materials and cable types, these bus couplers ensure reliable connectivity between systems.

Overview

Specifications

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Overview

In-Line Type Couplers with 1 Stub (Space)

Product Code	Transformer Ratio	Stub Resistor Value	Configuration / Termination Type
DE81101XX	1:1.41	59 Ohms ±1% 1W	Bus lines on opposite side / No termination
DE81001XX	1:1.41	59 Ohms ±1% 1W	Bus lines on same side / No termination
DE81121XX	1:1.41	59 Ohms ±1% 1W	Bus lines on opposite side/ Right side terminated
DE81121XX	1:1.41	59 Ohms ±1% 1W	Bus lines on oppposite side / Left side terminated

In-Line Type Couplers with 2 Stub (Space)

Product Code	Transformer Ratio	Stub Resistor Value	Configuration / Termination Type
DE81102XX	1:1.41	59 Ohms ±1% 1W	Bus lines on opposite side / No termination
DE81002XX	1:1.41	59 Ohms ±1% 1W	Bus lines on same side / No termination
DE81122XX	1:1.41	59 Ohms ±1% 1W	Bus lines on opposite side/ Right side terminated
DE81132XX	1:1.41	59 Ohms ±1% 1W	Bus lines on opposite side / Double side terminated
DE81022XX	1:1.41	59 Ohms ±1% 1W	Bus lines on same side / Right side terminated
DE81022XX	1:1.41	59 Ohms ±1% 1W	Bus lines on same side / Double side terminated

In-Line Type Couplers with 3 Stub (Space)

Product Code	Transformer Ratio	Stub Resistor Value	Configuration / Termination Type
DE81103XX	1:1.41	59 Ohms ±1% 1W	Bus lines on opposite side / No termination
DE81003XX	1:1.41	59 Ohms ±1% 1W	Bus lines on same side / No termination
DE81123XX	1:1.41	59 Ohms ±1% 1W	Bus lines on opposite side/ Right side terminated
DE81113XX	1:1.41	59 Ohms ±1% 1W	Bus lines on opposite side / Left side terminated
DE81133XX	1:1.41	59 Ohms ±1% 1W	Bus lines on opposite side / Double side terminated
DE81023XX	1:1.41	59 Ohms ±1% 1W	Bus lines on same side / Right side terminated
DE81033XX	1:1.41	59 Ohms ±1% 1W	Bus lines on same side / Left side terminated

In-Line Type Couplers with 4 Stub (Space)

Product Code	Transformer Ratio	Stub Resistor Value	Configuration / Termination Type
DE81104XX	1:1.41	59 Ohms ±1% 1W	Bus lines on opposite side / No termination
DE81004XX	1:1.41	59 Ohms ±1% 1W	Bus lines on same side / No termination
DE81124XX	1:1.41	59 Ohms ±1% 1W	Bus lines on opposite side/ Right side terminated
DE81134XX	1:1.41	59 Ohms ±1% 1W	Bus lines on opposite side / Double side terminated
DE81024XX	1:1.41	59 Ohms ±1% 1W	Bus lines on same side / Right side terminated
DE81034XX	1:1.41	59 Ohms ±1% 1W	Bus lines on same side / Double side terminated

Specification	Explanation
COMMON MODE REJECTION	-45.0dB MAX @ 1.0MHz
DROOP	20% MAX (250kHz)
OVERSHOOT & RINGING	± 1.0V PEAK (250kHz SQUARE WAVE WITH 100ns)
STUB VOLTAGE	1.0V TO 14.0V P-P, LINE TO LINE, SIGNAL VOLTAGE, TRANSFORMER COUPLING
INPUT IMPEDANCE OF BUS	3000 ΩMIN. (75kHz – 1.0MHz), STUB WITH OPEN CIRCUIT

Specification	Explanation
ENCLOSURE MATERIAL	TINPLATE 0.5mm THK.

Specification	Explanation
HIGH TEMPERATURE OPERATING	MIL-STD-810G_CHG-1 METHOD 501.6 PROCEDURE II, +125°C
LOW TEMPERATURE OPERATING	MIL-STD-810G_CHG-1 METHOD 502.6 PROCEDURE II, -55°C
HIGH TEMPERATURE STORAGE	MIL-STD-810G_CHG-1 METHOD 501.6 PROCEDURE I, +125°C
LOW TEMPERATURE STORAGE	MIL-STD-810G_CHG-1 METHOD 502.6 PROCEDURE I, -55°C
VIBRATION	MIL-STD-810G_CHG-1 METHOD 514.7 PROCEDURE I - CATEGORY 12, 15Hz TO 2000Hz, (Performance: W0=0.040 and A=0.02, Duration: half hour/axis), (Endurance: W0=0.053 and A=0.02, Duration: 1 hour/axis)
SHOCK	MIL-STD-810G_CHG-1 METHOD 516.7 PROCEDURE V (40g, 11ms, Terminal Peak Sawtooth, Number of shocks: 12, two in each direction of three axes)
RAIN	MIL-STD-810G METHOD 506.5 PROCEDURE I

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MIL-STD-1553 In-Line Type Bus Couplers