EEWORLDEEWORLDEEWORLD

Part Number

Search

3.500MHZHC49-4H/20/10/-20+70/30PF/ATF

Description
Parallel - Fundamental Quartz Crystal, 3.5MHz Nom, ROHS AND REACH COMPLIANT, RESISTANCE WELD, HERMETIC SEALED, HC49-4H, 2 PIN
CategoryPassive components    Crystal/resonator   
File Size112KB,1 Pages
ManufacturerEuroquartz
Websitehttp://www.euroquartz.co.uk/
Environmental Compliance  
Download Datasheet Parametric View All

3.500MHZHC49-4H/20/10/-20+70/30PF/ATF Overview

Parallel - Fundamental Quartz Crystal, 3.5MHz Nom, ROHS AND REACH COMPLIANT, RESISTANCE WELD, HERMETIC SEALED, HC49-4H, 2 PIN

3.500MHZHC49-4H/20/10/-20+70/30PF/ATF Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Objectid1321950841
package instructionROHS AND REACH COMPLIANT, RESISTANCE WELD, HERMETIC SEALED, HC49-4H, 2 PIN
Reach Compliance Codecompliant
Other featuresAT-CUT; BULK; TAPE AND REEL
Ageing3 PPM/FIRST YEAR
Crystal/Resonator TypePARALLEL - FUNDAMENTAL
Drive level100 µW
frequency stability0.001%
frequency tolerance20 ppm
load capacitance30 pF
Installation featuresTHROUGH HOLE MOUNT
Nominal operating frequency3.5 MHz
Maximum operating temperature70 °C
Minimum operating temperature-20 °C
physical sizeL10.77XB4.34XH3.5 (mm)/L0.424XB0.171XH0.138 (inch)
Series resistance120 Ω
surface mountNO
EURO
QUARTZ
EURO
Low-profile crystal units
Low-cost, industry-standard crystal unit
AT-Cut strip crystal with hermetically sealed can
Frequency range 3.2MHz to 70MHz
Package height options available
DESCRIPTION
HC49-4H and HC49-4HL Crystals
OUTLINES & DIMENSIONS
HC49-4H crystals have the same base outline as the industry-
standard HC49 crystal. The crystal uses at AT-cut strip crystal with an
hermetically sealed can. HC49-4H crystals provide a low cost source
of system clock frequency.
SPECIFICATION
Frequency Range:
Oscillation Mode/Frequency
AT-Cut Fundamental:
AT-Cut 3rd Overtone:
BT-Cut Fundamental:
Calibration Tolerance at 25ºC:
Frequency Stability:
Load Capacitance (CL):
Ageing at 25°C:
Drive Level:
Storage Temperature Range:
Crystal Holder:
RoHS Status:
Supply format:
3.2MHz to 70.0MHz
3.2MHz to 48.0MHz
27.0MHz to 70.0MHz
24.0MHz to 48.0MHz
±5ppm, ±10ppm, ±20ppm or
±30ppm at 25°C
Series or from 8pF to 32pF
±3ppm maximum, 1st year,
±1ppm per year thereafter.
100mW typical, 500mW maximum
-50° to +105°C
Resistance-weld hermetic seal
Compliant
Bulk pack (Radial tape and reel
is available)
ESR and OSCILLATION MODE
Frequency
Range MHz
3.2 ~ 3.4
3.5 ~ 6.0
6.1 ~ 10.0
10.1 ~ 30.0
24.0 ~ 48.0
27.0 ~ 30.0
30.1 ~ 50.0
50.1 ~ 70.0
Crystal Cut
Osc. Mode
AT-Fund.
AT-Fund.
AT-Fund.
AT-Fund.
BT-Fund.
AT-3rd ot
AT-3rd ot
AT-3rd ot
ESR
Ω Max.
300
120
60
40
40
150
100
80
PART NUMBERS
Part numbers for HC49-4H crystals are generated as follows:
Example:
8.000MHz HC49-4H/30/50/-20+70/30pF/30R
Frequency
Package
HC49-4H
HC49-4HL
Calibration tolerance
at 25°C (ppm)
Stability over temp. (ppm)
Operating temp. range (°C)
Circuit Condition
(SR = Series or 10~32pF)
Max ESR (i.e. 30R = 30Ω
max.)
(
)
or 'ATF' or 'BTF' for AT or BT-cut fundamental, 3OT for 3rd overtone
FREQUENCY STABILITY vs OPERATING TEMPERATURE RANGE
Temp. °C/ppm
-10 to +60
-20 to +70
-40 to +85
±10
ü
ASK
X
±15
ü
ü
ü
±20
ü
ü
ü
±25
ü
ü
ü
±30
ü
ü
ü
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 sales@euroquartz.co.uk
www.euroquartz.co.uk
#Meet friends by disassembling# Seagate 500G hard drive repair record
[i=s]This post was last edited by ddllxxrr on 2015-8-7 09:16[/i] My colleague's Seagate 500G hard drive burned. He brought it to me for a look. I said I don't usually dismantle things, but I don't min...
ddllxxrr Making friends through disassembly
【TI recommended course】# Master the design of flyback power transformer and circuit#
//training.eeworld.com.cn/TI/show/course/3977...
xdlsf TI Technology Forum
Apply for LM3S8962 development board
From now on, we will complete some articles on basic modules, such as serial port, ADC, PWM basic modules, and comprehensive applications, data acquisition through serial port forwarding and serial po...
yuhua8688 Microcontroller MCU
What kind of questions will be in this year's class?
[i=s]This post was last edited by paulhyde on 2014-9-15 08:58[/i] What kind of questions will be asked in this year's exam? Let's talk about it together....
apollozorro Electronics Design Contest
Make suggestions for the new forum
1. The page display is too slow and can't refresh2. The pictures in the posts can't be displayed normally3. The login location prompt of the forum is not so accurate 4. There are too many message remi...
chen8710 Suggestions & Announcements
Tang Jun's "4+1" rule for success
[p=24, null, left][font=Arial, Helvetica, sans-serif][size=16px][b]Tang Jun[/b]'s "4+1" rule for success From an ordinary college student to a top engineer of a Fortune 500 company; from an ordinary p...
绿茶 Talking

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2180  1569  1163  880  2372  44  32  24  18  48 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号