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Description
MERCURY UNITED ELECTRONICS H49-25.000-18-30/50/-40+85 Crystal, 25 MHz, Through Hole, 10.8mm x 4.5mm, 50 ppm, 18 pF, 30 ppm, H49 SeriesThis is a Crystal, 25 MHz, Through Hole, 10. 8mm x 4. 5mm, 50 ppm, 18 pF, 30 ppm, H49 Series product from MERCURY UNITED ELECTRONICS with the model number H49 25. 000 18 30 50 40+85Product details Crystal Case Through Hole, 10. 8mm x 4. 5mm Frequency Tolerance + 30ppm Frequency Stability + 50ppm Operating Temperature Min 40C Product Range H49 Series Load Capacitance 18pF Operating Temperature Max 85C Frequency Nom 25MHz Other details Brand MERCURY
This is a Crystal, 25 MHz, Through Hole, 10.8mm x 4.5mm, 50 ppm, 18 pF, 30 ppm, H49 Series product from MERCURY UNITED ELECTRONICS with the model number H49-25.000-18-30/50/-40+85Product details
| Crystal Case | Through Hole, 10.8mm x 4.5mm |
| Frequency Tolerance + / - | 30ppm |
| Frequency Stability + / - | 50ppm |
| Operating Temperature Min | -40°C |
| Product Range | H49 Series |
| Load Capacitance | 18pF |
| Operating Temperature Max | 85°C |
| Frequency Nom | 25MHz |
Other details
| Brand | MERCURY UNITED ELECTRONICS |
| Part Number | H49-25.000-18-30/50/-40+85 |
| Quantity | Each |
| Technical Data Sheet EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
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4.8 ★★★★★
Based on 630 reviews
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Product Reviews
★★★★★ 5
They aren't using crappy malware, so if you're InfoSec program is built ...
Format: Paperback
Bought yesterday, can't put it down -- will reread it again this week. This book is a solid gold mine on pulling our InfoSec heads out of our InfoSec tailpipes and focusing on the modes and methods our real adversaries are using. (Pro Tip: They aren't using crappy malware, so if you're InfoSec program is built on stopping malware you should be concerned.)
We all hear about the social engineering component to an effective attack, but to see it so effectively used over and over again with Wil's case studies really drives home the point.
If you're involved in either the management of an Information Security program, or involved in the more tactical parts of penetration testing, I'd put this on your short list of books to read this year. I hope he does a follow-up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2017
★★★★★ 5
A well-written and updated book that covers Advanced Persistent Threats (APT) in detail.
Format: Paperback
The author truly knows his art. As a penetration tester, I feel that many books just re-hash the same old material and tools. This book covers much more than just pentesting, it covers APT and gives realistic scenarios and tools that actually work. This is a book for everyone who works offensive and defensive security because it covers how real malicious actors approach companies and steal their critical data.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 19, 2017
★★★★★ 5
Excellent Red Team InfoSec Book
Format: Paperback
One of the better books on the market on real penetration testing and creating advanced persistent threats. Great coding examples/strategies and how to think outside the box when it comes to attacking systems/companies. Elite guys like Wil Allsopp create their own custom tools all the time for real penetration testing. This is what nation-state actors are doing. Highly recommended.
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Reviewed in the United States on December 2, 2017
★★★★★ 5
Buy,buy,buy
Format: Kindle
Buy this rather than all the other books out there. I have a whole library full, and I do mean full, and this is one of the very few really great ones. A wonderful surprise as I was reading another book that got high praise and it is really sorry, a waste of money.
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Reviewed in the United States on June 12, 2017
★★★★★ 5
Finally! A Book That Teaches Kids How to Calm Down
Format: Board book, Format: Board book
Pediatrician approved! This is a great book for toddlers, preschoolers and even school-age kids! What sets this book apart from other books on this topic is that it helps kids understand the physical sensation of their emotions. It explains what is happening in their brains and bodies when those feelings start to get "too big.” Also, instead of just telling a child to stay calm, it gives them safe, tangible ways to actually do it like belly breathing, asking for a cuddle, and so many more , As a Pediatrician who works closely with children and families, I can’t recommend this enough. It’s a gentle, practical, and science-backed tool that turns a stressful meltdown into a teaching opportunity. Will be buying more copies of this book for my kids preschool and school!
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Reviewed in the United States on March 25, 2026
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