Product EOL Announcement

Ecliptek Corporation announces End of Life initiation for the EB51W4 product series with the intent of discontinuing its availability. New orders for the EB51W4 series will not be accepted after February 28, 2012. Please see the EB51W4 EOL Announcement.

In order to fulfill your requirements beyond this product's discontinuation, we invite you to evaluate alternative Ecliptek products. Because this series does not have a recommended alternative, please contact one of our Global Customer Support Executives to assist you with finding the best Ecliptek product for your application.

EB51W4 Series TCXO

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  • Temperature Compensated Crystal Oscillators (TCXO)
  • HCMOS/TTL Output
  • +5.0V Supply Voltage
  • Internal Mechanical Trim Function
  • External Voltage Control Option
  • 4 Pad Metal SMD Package

Electrical Specifications

Nominal Frequency
1.200MHz to 40.000MHz
Frequency Stability
vs. Operating Temperature Range: per Operating Temperature Ranges vs. Frequency Stabilities table below
vs. Input Voltage (±5%): ±0.3ppm Maximum
vs. Load (±2pF): ±0.2ppm Maximum
Operating Temperature Range
per Operating Temperature Ranges vs. Frequency Stabilities table below
Supply Voltage (VDD)
5.0VDC ±5%
Input Current
20mA Maximum from 1.200MHz to 27.000MHz
35mA Maximum from 27.000001MHz to 40.000MHz
Output Voltage Logic High (VOH)
2.4VDC Minimum with TTL Load
VDD-0.5VDC Minimum with HCMOS Load
Output Voltage Logic Low (VOL)
0.4VDC Maximum with TTL load
0.5VDC Maximum with HCMOS load
Duty Cycle
50 ±10(%) measured at 1.4VDC with TTL load or 50% of waveform with HCMOS load
Rise Time/Fall Time
10nSec Maximum measured over 0.4VDC to 2.4VDC with TTL load or from 20% to 80% of waveform with HCMOS load.
Load Drive Capability
10 TTL or 15pF HCMOS Load Maximum
Aging (at 25°C)
±1ppm/year Maximum
Storage Temperature
-40°C to +85°C
Control Voltage (External) 2.5VDC ±2.0VDC, Positive Transfer Characteristic
Frequency Deviation ±7ppm Minimum, ±20ppm Maximum over Control Voltage (Referenced to FO at VC=2.5VDC; VDD=5.0VDC)
Internal Trim (Top of Can) ±3ppm Minimum
Typical Phase Noise -70dBc/Hz at offset of 10Hz
-100dBc/Hz at offset of 100Hz
-130dBc/Hz at offset of 1kHz
-140dBc/Hz at offset of 10kHz
-145dBc/Hz at offset of 100kHz
Modulation Bandwidth 10kHz Minimum measured at -3dB with Control Voltage of 2.5VDC
Phase Noise 10kOhms Typical

Operating Temperature Ranges vs. Frequency Stabilities

Operating Temperature Range Frequency Stability
X Denotes availability for any valid frequency.
Y Denotes availability from 1.2MHz to 27MHz.
±1.5ppm ±2.0ppm ±3.0ppm ±5.0ppm
0°C to +50°C X X X X
0°C to +70°C Y X X X
-20°C to +70°C   Y X X
-30°C to +75°C     X X
-40°C to +85°C       X
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Mechanical Dimensions

Note: Lead Coplanarity 0.152 MAX
Pin 1: Control Voltage or No Connect Pin 3: Output
Pin 2: Case Ground Pin 4: Supply Voltage
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Part Number Constructor / Request a Quote or Sample

Product EOL Announcement

Ecliptek Corporation announces End of Life initiation for the EB51W4 product series with the intent of discontinuing its availability. New orders for the EB51W4 series will not be accepted after February 28, 2012. Please see the EB51W4 EOL Announcement.

In order to fulfill your requirements beyond this product's discontinuation, we invite you to evaluate alternative Ecliptek products. Because this series does not have a recommended alternative, please contact one of our Global Customer Support Executives to assist you with finding the best Ecliptek product for your application.

Please note that this form is intended to provide a listing of standard options. If you require an option or configuration that is not present here, you may want to fill out our Custom Oscillator Part Number Request Form. If you have any trouble with this form, or just have a suggestion as to how it might be improved, please contact our Global Customer Support Team.
Enter your part number:
- OR -  
Frequency in Megahertz (1.2 to 40):
Frequency Stability over Operating Temperature Range:
Operating Temperature Range:
External Trim:
Packaging Option:


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Part Numbering Guide

Product EOL Announcement

Ecliptek Corporation announces End of Life initiation for the EB51W4 product series with the intent of discontinuing its availability. New orders for the EB51W4 series will not be accepted after February 28, 2012. Please see the EB51W4 EOL Announcement.

In order to fulfill your requirements beyond this product's discontinuation, we invite you to evaluate alternative Ecliptek products. Because this series does not have a recommended alternative, please contact one of our Global Customer Support Executives to assist you with finding the best Ecliptek product for your application.

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Marking Specifications

Line 1: ECLIPTEK
Line 2: XX.XXX M
  • XX.XXX = Frequency (5 Digits Maximum + Decimal)
  • M = Frequency unit of measure (MHz)
Line 3: XX Y ZZ
  • XX = Ecliptek Manufacturing Identifier
  • Y = Last digit of Year
  • ZZ = Week of Year
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Environmental & Mechanical Specifications

Fine Leak Test: MIL-STD-883, Method 1014, Condition A (Internal Crystal Only)
Gross Leak Test: MIL-STD-883, Method 1014, Condition C (Internal Crystal Only)
Mechanical Shock: MIL-STD-202, Method 213, Condition C
Vibration: MIL-STD-883, Method 2007, Condition A
Solderability: MIL-STD-883, Method 2003
Temperature Cycling: MIL-STD-883, Method 1010
Resistance to Soldering Heat: MIL-STD-202, Method 210
Resistance to Solvents: MIL-STD-202, Method 215
Lead Integrity: MIL-STD-883, Method 2004
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Other Resources

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Category
Oscillator
Series
EB51W4
Package
SMD
Voltage
5.0V
Class
OS1G
Revision
A 01-20-2005
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