Device Overview

General Description

The TM50-40 is a well-matched, 50Ω male termination enabling operation from DC to 40 GHz. This termination features a 1W power rating and 38 dB typical return loss. The termination is suitable for use with our connectorized components. The T50-40 is available with both Male and Female connector options available as a 2.92mm connectorized module.

Photo of TM50-40

Features

  • Male termination
  • Broadband 50Ω termination from DC to 40 GHz
  • 0.7W Power Rating
  • 38 dB typical Return Loss

Applications

  • Test Equipment
  • Broadband Loading
  • Precision Characterization

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionConnectorsGreen StatusProduct LifecycleExport Classification
TF50-40DC to 40GHz 50Ω Female TerminationStandard

REACH

RoHS

ReleasedEAR99
TM50-40DC to 40GHz 50Ω Male TerminationStandard

REACH

RoHS

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
-2025-06-13Initial Release
A2025-11-24Power Handling removed from Outline Drawing
B2026-02-17Power Handling Updated in the Features Section

Rev: B | Copyright © 2025 - 2026 Marki Microwave LLC.

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Port Configuration and Functions

Port Functions

PortFunctionConnector TypeDescriptionDC Equivalent
Circuit
GNDGround -Ground provided through metal housing and outer coax conductor.Equivalent circuit for the Ground
Port 1Input 2.92MPort 1 is DC connected to ground through a broadband 50Ω resistor.Equivalent circuit for the Input

Rev: B | Copyright © 2025 - 2026 Marki Microwave LLC.

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Specifications

Absolute Maximum Ratings

The Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. If these limits are exceeded, the device may be inoperable or have a reduced lifetime.

ParameterMaximum RatingUnit
Average Power Handling 10.7W
Maximum Operating Temperature 105°C
Maximum Storage Temperature 105°C
Minimum Operating Temperature -40°C
Minimum Storage Temperature -40°C

1 W Average power from -40°C to +70°C Linearly derated to 0.7W at 105°C

[1] 1 W Average power from -40°C to +70°C Linearly derated to 0.7W at 105°C

Package Information

ParameterDetailsRating
ESD250 to < 500 VoltsHBM Class 1A

Rev: B | Copyright © 2025 - 2026 Marki Microwave LLC.

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Electrical Specifications

The electrical specifications apply at TA=+25°C in a 50Ω system.

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Impedance 25°C
0 40-50-Ω
Return Loss 25°C
0 402338-dB
VSWR 25°C
0 40-1.031.15

Rev: B | Copyright © 2025 - 2026 Marki Microwave LLC.

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Typical Performance Plots

Return Loss (dB) graph for TM50-40

Rev: B | Copyright © 2025 - 2026 Marki Microwave LLC.

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Mechanical Data

Outline Drawing

Download : Outline 2D Drawing

Outline Drawing

Rev: B | Copyright © 2025 - 2026 Marki Microwave LLC.

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