HP 355 DC - 1 GHz Attenuator Family

The HP 355 family delivers precision attenuation from dc to 1000 MHz. The HP 355C manual attenuator supplies 0 to 12 dB in 1-dB steps while the HP 355D manual attenuator provides 0 to 120 dB in 10-dB steps. The HP 355E and 335F are small, lightweight, programmable attenuators. The HP 355E provides 0 to 12 dB attenuation in 1 dB steps while the HP 355F provides 0 to 120 dB in 10 dB steps. The broadband operation of these programmable attenuators make them particularly useful for applications in automatic or remotely-controlled test equipment. Standard models are equipped with BNC connectors.

This product family includes

HP 355C Manual Step Attenuator, DC to 1000 MHz, 0 to 12 dB, 1 dB steps

HP 355D Manual Step Attenuator, DC to 1000 MHz, 0 to 120 dB, 10 dB steps

HP 355E Programmable Step Attenuator, DC to 1 GHz, 0 to 12 dB, 1 dB steps

HP 355F Programmable Step Attenuator, DC to 1 GHz, 0 to 120 dB, 10 dB steps

[ Features ]

Precision attenuation
Broad frequency coverage, dc to 1000 MHz
Low insertion loss
Low SWR and negligible leakage

[ Specifications ]

Attenuation
HP 355C/E:			0 to 12 dB in 1 dB steps
HP 355D/F:			0 to 120 dB in 10 dB steps
				
Frequency Range:		dc to 1 GHz

Overall Accuracy
HP 355C/E
	at 1000 Hz:		ą0.1 dB
	dc to 0.5 GHz:		ą0.25 dB
	dc to 1.0 GHz:		ą0.35 dB

HP 355D/F
	at 1000 Hz:		ą0.3 dB
	1 GHz:		        ą1.5 dB to 90 dB
				ą3 dB to 120 dB

Impedance:			50 ohms nominal

Power Rating
Average:			0.5 W
Peak:				350 W
Minimum Life:                   0.5 million cycles per section

Solenoid Voltage Speed Power
HP 355E/F:                      15 to 18 V <65 ms 3.0 W

Maximum SWR (input and output)
	dc to 0.25 GHz:		1.2
	dc to 0.5 GHz:		1.3
	dc to 1.0 GHz:		1.5

Maximum Insertion Loss:         0.11 dB + 1.39 dB/GHz
	
Dimensions (maximum envelope, bench, or panel mount)
HP 355C/D:			70 mm W x 67 mm H x 152 mm D
				(2.75 in x 2.6 in x 6 in)
HP 355E/F:			70 mm W x 67 mm H x 152 mm D
				(2.75in x 2.6 in x 6 in)


Weight (bench or panel mount)
Net:				0.7 kg (1.5 lb)
Shipping:			1.4 kg (3 lb)

[ Ordering ]

HP 355C DC - 1 GHz Manual Attenuator Opt 001 Type-N Connectors Opt 003 Panel Mounting Capability Opt 005 TNC Connectors HP 355D DC - 1 GHz Manual Attenuator Opt 001 Type-N Connectors Opt 003 Panel Mounting Capability Opt 005 TNC Connectors HP 355E DC - 1 GHz Programmable Attenuator Opt 001 Type-N (f) Connectors Opt 005 TNC (f) Connectors Opt 007 Transistor driver protection circuitry HP 355D DC - 1 GHz Programmable Attenuator Opt 001 Type-N (f) Connectors Opt 005 TNC (f) Connectors Opt 007 Transistor driver protection circuitry

HP 355C/D VHF Attenuators dc to 1 GHz, Technical Specifications
DC - 1 Programmable Attenuators Models 355E and 355F, Technical Data

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[ Assistance ]

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Related product groups available online:

Coaxial Step Attenuators