RFS25G26B
25W Coaxial Fixed Attenuator
DC-26.5GHz
Product Description
RFS25G26B is a coaxial fixed attenuator with a frequency range of DC to26.5GHz.
The max average power of the attenuator is 25W. The max VSWR of 1.3:1.
The working temperature of this product is between - 40℃ and + 85℃.

Features•••

Typical Applications
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Wide frequency Band
Low VSWR
Multiple Attenuation Values Available

Wireless Infrastructure
Military and Aerospace Applications
Test Instrumentation
Radar Systems
5G Wireless Communications
Microwave Radio Systems
TR Modules
Research and Development
Cellular Base Stations

Electrical Specifications (TA=+25⁰C)
Parameter

Min

Frequency Range

DC

Attenuation Value & Accuracy

Typ10±1.220±1.230±1.2Max

Units

26.5GHzdB

1.3：1Power (CW)

25W

Peak Power (0.5% Duty Cycle, 5us Pulse Width)

1KW

VSWR
IM3-100dBc 3dB back off 1MHz step

Impedance50Ω

Weight0.26 Max.

lbs.

Connectors

Rev 2. 02-09-2023 | Subject to change without notice

SMA or N

RF-LAMBDA USA LLC: www.rflambda.com
Sales: sales@rflambda.com Technical: support@rflambda.com

RFS25G26BEnvironmental Specifications and Test Standards
Parameter

Description

Operational Temperature-40⁰C to +85⁰C(Case Temperature)

Storage Temperature-55⁰C to +125⁰C

Thermal Shock-40⁰C → +85⁰C(5 Cycles / 10 hours)**Random Vibration

MIL-STD-202G
Table 214-I, Test Condition Letter C
1.5 Hours Per Axis

High Temperature Burn In

Temperature +125⁰C for 72 Hours

Shock

1. Weight >20g, 50g half sine wave for 11ms, Speed variation 3.44m/s
2. Weight <=20g, 100g Half sine wave for 6ms, Speed variation 3.75m/s
3. Total 18 times (6 directions, 3 repetitions per direction).

AltitudeStandard: 30,000 Ft (Epoxy Sealed Controlled Environment)
Optional: Hermetically Sealed (60,000 ft. 1.0 PSI min)

Hermetically Sealed(Optional)

MIL-STD-883 (For Hermetically Sealed Units)**For vibration testing details please see additional information section.

Rev 2. 02-09-2023 | Subject to change without notice

RF-LAMBDA USA LLC: www.rflambda.com
Sales: sales@rflambda.com Technical: support@rflambda.com

RFS25G26B
Typical Performance Plots

Rev 2. 02-09-2023 | Subject to change without notice

RF-LAMBDA USA LLC: www.rflambda.com
Sales: sales@rflambda.com Technical: support@rflambda.com

RFS25G26B
Outline Drawing

Notes:
1. Finish: Body painted with gray/black epoxy enamel
2. All dimensions are in millimeters [inches].
3. Tolerances ±0.25 [0.01] unless otherwise specified.

Additional Information
Documentation

Webpage

ESD Policy

https://rflambda.com/pdf/rflambda_esd_control.pdf

Connector Torque Specifications

https://www.rflambda.com/pdf/Torque_Specifications.pdf

Random Vibration Test Standard

https://www.rflambda.com/pdf/rflambda_random_vibration_MIL-STD-202G.pdf

Rev 2. 02-09-2023 | Subject to change without notice

RF-LAMBDA USA LLC: www.rflambda.com
Sales: sales@rflambda.com Technical: support@rflambda.com

RFS25G26B
Ordering Information
Part Number

Modification

Description

RFS25G26B

SMA or N

DC-26.5GHz Fixed Attenuator

Important Notice
The information contained herein is believed to be reliable. RF-Lambda makes no warranties regarding the information contained herein.
RF-Lambda assumes no responsibility or liability whatsoever for any of the information contained herein. RF-Lambda assumes no responsibility orliability whatsoever for the use of the information contained herein. The information contained herein is provided "AS IS, WHERE IS" and with all faults,
and the entire risk associated with such information is entirely with the user. All information contained herein is subject to change without notice.
Customers should obtain and verify the latest relevant information before placing orders for RF-Lambda products. The information contained herein or
any use of such information does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other intellectual property rights,
whether with regard to such information itself or anything described by such information.
RF-Lambda products are not warranted or authorized for use as critical components in medical, life-saving, or life sustaining applications, or otherapplications where a failure would reasonably be expected to cause severe personal injury or death.

Rev 2. 02-09-2023 | Subject to change without notice

RF-LAMBDA USA LLC: www.rflambda.com
Sales: sales@rflambda.com Technical: support@rflambda.com