QT178AC-10-0.450MHZ datasheet, PDF

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QT178AC-10-0.450MHZ: DescriptionACMOS/TTL Output Clock Oscillator, 0.45MHz Nom, ROHS COMPLIANT, HERMETIC SEALED, CERAMIC, SMD, 4 PIN; CategoryPassive components oscillator; File Size710KB，7 Pages; ManufacturerQ-TECH Corporation; Environmental Compliance

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QT178AC-10-0.450MHZ Overview

ACMOS/TTL Output Clock Oscillator, 0.45MHz Nom, ROHS COMPLIANT, HERMETIC SEALED, CERAMIC, SMD, 4 PIN

QT178AC-10-0.450MHZ Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Q-TECH Corporation
Reach Compliance Code	compliant
Other features	TRISTATE; TUBE; TAPE AND REEL
maximum descent time	6 ns
Frequency Adjustment - Mechanical	NO
frequency stability	100%
JESD-609 code	e4
Manufacturer's serial number	QT178AC
Installation features	SURFACE MOUNT
Nominal operating frequency	0.45 MHz
Maximum operating temperature	125 °C
Minimum operating temperature	-55 °C
Oscillator type	ACMOS/TTL
Output load	10 TTL, 50 pF
physical size	13.97mm x 8.89mm x 4.318mm
longest rise time	6 ns
Maximum supply voltage	5.5 V
Minimum supply voltage	4.5 V
Nominal supply voltage	5 V
surface mount	YES
maximum symmetry	45/55 %
Terminal surface	Gold (Au) - with Nickel (Ni) barrier

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CLASS B+ PRODUCTS

Q-TECH

CORPORATION

Features

CRYSTAL CLOCK OSCILLATORS

3.3 to 5.0Vdc - 450kHz to 85MHz

• Made in the USA

• ECCN: EAR99

• DFARS 252-225-7014 Compliant:

Electronic Component Exemption

• USML Registration # M17677

• Broad frequency range from 450kHz to 85MHz

• Rugged 4 point mount design for high shock and

vibration

• ACMOS, HCMOS, TTL or LVHCMOS logic

• Tri-State Output Option (D)

• Hermetically sealed ceramic SMD package

• Fundamental and 3rd Overtone designs

• Low phase noise

• Custom designs available

• Q-Tech does not use pure lead or pure tin in its

products

• RoHS compliant

Introduction

The commercial satellite industry has requested that smaller, lighter, less

expensive oscillator products with shorter lead times be made available

for minisatellites, microsatellites, nanosatellites and picosatellites. In

addition some newer satellite programs are being created for short term

space lives and do not need oscillators with the assurance of a 15-20 year

life span.

Q-Tech Corporation, the industry leader in both Class B and Space Rated

hybrid crystal oscillators is pleased to advise that we have created a

special category of product designated as Class B+ for these applications.

See website for link to RAD test data.

We have created these Class B+ products for the discriminate user’s

applications and needs using our small form MIL QPL Class B oscillators.

You, the customer, can now pick and choose the style of clock oscillator

you wish, whether you want a 100kRad (Si) High Dose Tolerant NSC

54ACT3301 (FACT) or a standard Class B qualified die, a swept quartz

space qualified crystal or a Class B cultured quartz crystal and/or a

combination thereof in an oscillator product that otherwise utilizes Class

B qualified passive devices. Q-Tech offers several different screening

options to allow you to choose the screening plan that best suits your

needs.

Q-Tech Corporation does not guarantee the specific radiation hardness

of its Class B+ products but will provide the necessary active device

component traceability to allow you to make your own decision and do

your own testing and evaluation based upon your specific needs and

requirements.

Initially we will begin this product offering in three of our leading

miniature clock oscillator product lines: QT78 (M55310/27, /28 & /30) ,

QT88 (M55310/33 & /34) and QT92 (M55310/37 & /38). Product will

be available in 5.0 and 3.3 Vdc from 450kHz to 85MHZ. Please consult

the factory if you would like to know if this option is available in other

standard Q-Tech Class B product lines or if you have any other specific

oscillator needs that we can help you with.

Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-t ec h.com

Class B+ Products (Revision -, April 2009)

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