RDT
Delay Line

Overview

Common applications:

• Composites
• Thin walled parts
• Machine parts

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Features

• Single normal beam compression wave contact transducer
• Circular lead metaniobate crystal
• Max operating temperature 50°C / 120°F
• High temperature delay lines available on request
• High dampening for a wide bandwidth
• Rexolite delay lines available, custom length available on request

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Specification

Transducer Models

Product Code	Description	Frequency (MHz)	Crystal Diameter (mm / inches)	Nearfield Length in Steel (mm / inches)
RDT2525	2.25Mhz ¼” DelayLine	2.25	6.4mm / 1/4"	3.9mm / 0.154"
RDT5025	2.25Mhz ½”DelayLine	2.25	12.7mm / 1/2"	15.2mm / 0.598"
RDT1250	5Mhz 1/8" DelayLine	5	3.2mm / 1/8"	2.1mm / 0.083"
RDT2550	5Mhz ¼” DelayLine	5	6.4mm / 1/4"	8.6mm / 0.339"
RDT5050	5Mhz ½” DelayLine	5	12.7mm / 1/2"	33.8mm / 1.331"
RDT1210	10Mhz 1/8" DelayLine	10	3.2mm / 1/8"	4.3mm / 0.169"
RDT2510	10Mhz ¼” DelayLine	10	6.4mm / 1/4"	17.2mm / 0.677"
RDT5010	10Mhz ½” DelayLine	10	12.7mm / 1/2"	67.7mm / 2.665"
RDT1215	15Mhz 1/8" DelayLine	15	3.2mm / 1/8"	6.4mm / 0.252"
RDT2515	15Mhz ¼” DelayLine	15	6.4mm / 1/4"	25.8mm / 1.016"
RDT1220	20Mhz 1/8” DelayLine	20	3.2mm / 1/8"	8.6mm / 0.339"
RDT2520	20Mhz ¼” DelayLine	20	6.4mm / 1/4"	34.4mm / 1.354"

Case Dimensions & Details (not including the Delay Line)

Transducer Version Crystal size	Width/Diameter (mm / inches)	Height (mm / inches)	Connector Options	Position Options
3.2mm / 1/8"	12.7mm / 0.5"	19mm / 0.748"	D	Side
6.4mm / 1/4"	12.7mm / 0.5"	19mm / 0.748"	D	Side
12.7mm / 1/2"	19.5mm / 0.768"	40mm / 1.575"	D	Side

Delay Line

Product Code	Description
DT12	Used for 3.2mm / 1/8" crystal diameter transducer delay line attachment (sold in packs of 3)
DT25	Used for 6.4mm / 1/4" crystal diameter transducer delay line attachment (sold in packs of 3)
DT50	Used for 12.7mm / 1/2" crystal diameter transducer delay line attachment (sold in packs of 3)

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