251-4.0M-18-05HT datasheet, PDF

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251-4.0M-18-05HT: DescriptionParallel - Fundamental Quartz Crystal, 4MHz Nom, ROHS COMPLIANT, HC-49SM, SMD, 2 PIN; CategoryPassive components Crystal/resonator; File Size165KB，4 Pages; ManufacturerOscilent; Websitehttp://www.oscilent.com; Environmental Compliance

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251-4.0M-18-05HT Overview

Parallel - Fundamental Quartz Crystal, 4MHz Nom, ROHS COMPLIANT, HC-49SM, SMD, 2 PIN

251-4.0M-18-05HT Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Oscilent
package instruction	ROHS COMPLIANT, HC-49SM, SMD, 2 PIN
Reach Compliance Code	compli
Other features	AT CUT
Ageing	5 PPM/FIRST YEAR
Crystal/Resonator Type	PARALLEL - FUNDAMENTAL
Drive level	100 µW
frequency stability	0.002%
frequency tolerance	5 ppm
load capacitance	18 pF
Manufacturer's serial number	251
Installation features	SURFACE MOUNT
Nominal operating frequency	4 MHz
Maximum operating temperature	80 °C
Minimum operating temperature	-30 °C
physical size	L11.5XB5.0XH3.2 (mm)/L0.453XB0.197XH0.126 (inch)
Series resistance	120 Ω
surface mount	YES

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Oscilent Corporation | 250 - 251

Page 1 of 4

SMD Quartz Crystal

Series Number

Package

Description

Last Modified

250 ~ 251

FEATURES

- Cost effective

- Low profile

- Space saving design

- Tape and Reel

- RoHs / Lead Free compliant

HC-49SM

SMD Quartz Crystal

Sept. 01 2004

OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS

PARAMETERS

Frequency Range

Frequency Tolerance

Temperature Tolerance

Operating Temperature

Storage Temperature

Shunt Capacitance

Load Capacitance

Drive Level

Aging (First Year)

Insulation Resistance

CONDITIONS

Ref @ +25°C

OPR

STG

@ +25°C

CHARACTERISTICS

3.000 ~ 85.00

±30 std. (±5 ~ ±100 avail.)

±50 std. (See Table 2)

-10 ~ +60 std. (See Table 2)

-55 ~ +125

7.0 max.

20.0 std. (8 ~ 50 and Series avail.)

0.1 ~ 1.0

±5.0

500 (DC100 ±10V) min.

UNITS

MHz

PPM

°C

PPM/Y

Mohm

TABLE 1 - OPERATION MODE AND MOTIONAL RESISTANCE (RS)

FREQUENCY RANGE (MHz)

3.000 ~ 3.500

3.500 ~ 3.800

3.800 ~ 4.100

4.100 ~ 5.000

5.000 ~ 6.000

6.000 ~ 8.000

MODE

Fundamental

ohm max.

300

150

120

100

FREQUENCY RANGE (MHz)

8.000 ~ 10.000

10.000 ~ 12.000

12.000 ~ 28.000

28.000 ~ 33.500

26.000 ~ 40.000

40.000 ~ 75.000

MODE

Fundamental

3rd OT

ohm max.

100

TABLE 2 - FREQUENCY - TEMPERATURE TOLERANCE

Cutting

Temperature

Range

0 ~ +50°C

-10 ~ +60°C

-20 ~ +70°C

-30 ~ +80°C

Tolerance (PPM)

±5.00

±10.0

±15.0

±20.0

±30.0

±50.0

available

recommended

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