All prices are in US dollars.
Digi-Key Part Number X708-ND
Price Break Unit Price Extended Price
1 5.67000 5.67
10 5.35500 53.55
50 5.19760 259.88
100 4.96130 496.13
500 4.72500 2,362.50
1,000 4.09500 4,095.00
2,500 3.93750 9,843.75
Quantity Available Digi-Key Stock: 225
Can ship immediately

Manufacturer Standard Lead Time 10 Weeks
Manufacturer Part Number


Description MONO XTAL 21.4MHZ 4P 2PC 2.5DB
Lead Free Status / RoHS Status Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)

Quantity Item Number ? Customer Reference

When requested quantity exceeds displayed pricing table quantities, a lesser unit price may appear on your order.
You may submit a request for quotation on quantities which are greater than those displayed in the pricing table.

Datasheets Monolithic Crystal Filters
Product Photos ECS-21K B Series
Product Training Modules Monolithic Crystal Filters
Catalog Drawings ECS-21K Series Side 1
ECS-21K Series Side 2
Standard Package ? 100



Monolithic Crystals

Series -
Packaging ? Bulk?
Frequency - Center 21.4MHz
Impedance 850 Ohm
Insertion Loss 2.5dB
Bandwidth 7.5kHz
Ripple 1dB
Number of Poles 4
Operating Temperature -20°C ~ 70°C
Mounting Type Through Hole
Package / Case HC49/U
Size / Dimension 0.437" L x 0.185" W (11.10mm x 4.70mm)
Height (Max) 0.441" (11.20mm)
Online Catalog Crystal Filters
Other Names ECS21K7.5B
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12:21:38 6/26/2016