LF A120A IQD FREQUENCY PRODUCTS, LF A120A Datasheet

LF A120A

Manufacturer Part Number

LF A120A

Description

CRYSTAL, 4MHZ, 30PF, THROUGH HOLE

Manufacturer

IQD FREQUENCY PRODUCTS

Series

HC49r

Datasheet

1.LF_A113B.pdf (4 pages)

Specifications of LF A120A

Operating Temperature Range

-20Â°C To +70Â°C

Crystal Mounting Type

Through Hole

Crystal Case Type

Metal Can

Frequency

4MHz

Frequency Tolerance

Â± 20ppm

Load Capacitance

30pF

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current page: 1 of 4
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ISSUE 11; 6 OCTOBER 2004

Delivery Options

Holder Style

General Specifications

Standard Frequency Tolerances and Stabilities

Operating Temperature Ranges

Storage Temperature Range

Environmental Specification

Marking

Minimum Order Information Required

HC49 Crystals

Common frequencies maybe available from stock

HC49 crystals are resistance welded, hermetically

sealed in an inert atmosphere with glass to metal seals

securing the lead wires

Holders suffixed ‘–3L have a centre third wire which

grounds the case

Load Capacitance (C

Drive Level: 1mW max.

Static Capacitance (C

Ageing: ±3ppm typical per year

±5ppm, ±10ppm, ±15ppm, ±20ppm, ±30ppm,

±50ppm, ±100ppm

–10 to 60°C

–20 to 70°C

–30 to 80°C

–55 to 125°C

Shock: 981m/s

direction along three mutually perpendicular planes

Vibration: 10 to 60Hz 0.75mm displacement, 60 to

500Hz 98.1m/s

three mutually perpendicular planes

Includes Frequency

Frequency + Holder + Frequency Tolerance @ 25°C +

Frequency Stability + Operating Temperature Range +

Circuit Condition + Overtone Order + Tape & Reel

Packaging Available

0 to 50°C

–40 to 90°C

–55 to 105°C

–55 to 125°C

for 6ms, three shocks in each

acceleration, 30 minutes in each of

): 10pF to 75pF or Series

): 7pF max.

Outline in mm - HC49 & HC49-3L

+25

–25

Typical Frequency vs Temperature Curves

for various angles of AT-cut crystals

∅0.45

Typical Frequency vs Temperature Curves

for various angles of BT-cut crystals

–50

+10

–50

4.88

–50

11.05

10.2

–20

Temperature (°C)

∅0.45

+25

4.88

+25

11.05

1 2 3

10.2

= =

Pin connections

1. Crystal

2. Case & GND

3. Crystal

+70

+100

Related parts for LF A120A

LF A120A Summary of contents

Page 1

... Typical Frequency vs Temperature Curves for various angles of AT-cut crystals +25 0 –25 +25 –50 –20 Temperature (°C) Typical Frequency vs Temperature Curves for various angles of BT-cut crystals +10 0 –50 –50 –20 +25 Temperature (°C) 20 Pin connections 1. Crystal 2. Case & GND 3. Crystal +70 +100 ...

Page 2

Electrical Specification – maximum limiting values Frequency Range Frequency Tolerance (For lower Freq’s, please @ 25°C ±2°C contact sales office) 1.84320 to < 2.0MHz ±5ppm to ±100ppm 2.0 to < 3.0MHz ±5ppm to ±100ppm 3.0 to < 4.0MHz ±5ppm to ...

Page 3

Frequency Range Frequency Tolerance @ 25°C ±2°C Temperature Range 20.0 to 45.0MHz Inclusive with Frequency stability 21.0 to 90.0MHz ±5ppm to ±100ppm 45.0 to 135.0MHz Inclusive with Frequency Stability 60.0 to 150.0MHz ±5ppm to ±100ppm 90.0 to 225.0MHz Inclusive with ...

Page 4

Frequency Range Frequency Tolerance @ 25°C ±2°C Temperature Range 110.0 to 270.0MHz ±5ppm to ±100ppm Operating Frequency Stability Available Over Operating Temperature Minimum Maximum 0 to 50°C ±5ppm ±100ppm –10 to 60°C ±5ppm ±100ppm –20 to 70°C ±10ppm ±100ppm –30 ...

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