• Value add packaging not available; alternate packaging exists.
Product Overview
Digi-Key Part Number X721DKR-ND
Quantity Available 0

Manufacturer Part Number


Description 45MHz Center 1.1 kOhm Monolithic Crystal Filter Surface Mount 2.5dB 30kHz
Lead Free Status / RoHS Status Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Documents & Media
Datasheets ECS-38SMF
Product Training Modules Monolithic Crystal Filters
Product Attributes Select All



Monolithic Crystals


ECS Inc.

Series ECS-38SMF
Packaging ? Digi-Reel® ?
Part Status Discontinued
Frequency - Center 45MHz
Impedance 1.1 kOhm
Insertion Loss 2.5dB
Bandwidth 30kHz
Ripple 1dB
Number of Poles 2
Operating Temperature -30°C ~ 80°C
Mounting Type Surface Mount
Package / Case 8-SMD, No Lead (QFN, LCC)
Size / Dimension 0.150" L x 0.150" W (3.80mm x 3.80mm)
Height (Max) 0.047" (1.20mm)
Additional Resources
Standard Package ? 1
Other Names X721DKR

17:13:07 10/24/2016

Alternate Package | This part is also available in the following packaging:
  • Tape & Reel (TR) ? : X721TR-ND
  • Minimum Quantity: 500  Non-Stock ?
  • Quantity Available: 500 - Immediate
  • Unit Price: 11.20000
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