# Crystal, QCS, 8 MHz, 20 ppm, 30 ppm, 18 pF
**URL**: https://novapart.co/products/QCS8.00000F18B23M/crystal-qcs-8-mhz-20-ppm-30-18-pf
**SKU**: QCS8.00000F18B23M
**Manufacturer**: QANTEK TECHNOLOGY CORPORATION
**Category**: Crystals & Oscillators || Crystals
**Price**: €0.1940
**Stock**: 1000+
**Lead Time**: 134 days (indicative)
## Description
Frequency Nom:8MHz; Crystal Case:SMD, 12.5mm x 4.6mm; Frequency Stability + / -:30ppm; Load Capacitance:18pF; Frequency Tolerance + / -:20ppm; Product Range:QCS Series; Operating Temp
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (27-Jun-2024) |
| Frequency Nom | 8MHz |
| Product Range | QCS |
| Load Capacitance | 18pF |
| Crystal Frequency | 8MHz |
| Crystal Case / Package | SMD, 12.5mm x 4.6mm |
| Frequency Stability + / - | 30ppm |
| Frequency Tolerance + / - | 20ppm |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:2508478RL/)
**QCS Series** HC-49/U-S SMD 2-Pad
## **Features**
- Suitable for RoHS reflow
- Available for tight stability & extended temperature range
## **Applications**
- Computers, Modems, Microprocessors
- Wireless Applications
General Specifications
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|---|---|---|---|
|Frequency Range|3.200 to 70.000MHz|
|Mode of Oscillation|Fundamental|3.200 to 32.768MHz|
|Third Overtone|24.576 to 70.000MHz|
|Frenquency Tolerance at 25°C|±10 to ±30ppm (±30ppm standard)|
|Frequency Stability over Temperature Range|See Stability vs. Temperature Table|
|Storage Temperature|-55 to +125°C|
|Aging per Year|±3ppm max.|
|Load Capacticance CL|10 to 32pF and Series Resonance|
|Shunt Capacticance C0|7.0pF|
|Equivalent Series Resistance (ESR)|See ESR Table|
|Drive Level|1.0mW max.|
|Insulation Resistance (M|Ω|)|500 at 100Vdc ±15Vdc|
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|---|---|---|---|
|Equivalent Series Resistance (ESR)|
|Frequency Range - MHz|Ω|max.|Mode of Operation|
|3.200|to 3.500|300|Fundamental|
|3.510|to 3.999|200|
|4.000|to 5.999|120|
|6.000|to 7.999|80|
|8.000|to 9.999|60|
|10.000 to 15.999|50|
|16.000 to 32.768|40|
|24.576 to 70.000|80|Fundamental - Third Overtone|
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## Frequency Stability vs. Temperature
Operating Temperature ±10ppm ±20ppm ±30ppm ±50ppm ±100ppm -20 to +70°C ~~SC~~ -40 to +85°C ~~eS~~ -40 to +105°C ~~eS~~ -40 to +125°C standard available ~~oe]~~ Mechanical Dimensions fod ees ETE it Part Numbering Guide
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|---|---|---|---|---|---|---|---|---|---|
|Nominal|Operating|
|Qantek|Vibration|Load|Frequency|Frequency|Automotive|
|Package|Frequency|Temperature|Packaging|
|Code|Mode|Capacitance|Tolerance|Stability|Indicator|
|(in MHz)|Range|
|Q = Qantek|CS = HC-49/U-S SMD|7 digits including|F = AT-Fund|S = Series|A = -20 to +70°C|1 = ±10ppm|1 = ±10ppm|not available|M = 250pcs Tape&Reel|
|= 2-Pad|the decimal point|08 = 8pF|B = -40 to +85°C|2 = ±20ppm|2 = ±20ppm|R = 1000pcs Tape&Reel|
|(f.ie. 12.0000)|12 = 12pF|C = -40 to +105°C|3 = ±30ppm|3 = ±30ppm|
|18 = 18pF|D = -40 to +125°C|5 = ±50ppm|5 = ±50ppm|
|20 = 20pF etc.|0 = ±100ppm|0 = ±100ppm|
|Example: QCS12.0000F18B35R|bold letters = recommended standard specification|
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**QANTEK Technology Corporation** Phone: +1 877-227-0440 (tollfree) Fax: +1 877-227-0440 (tollfree)
www.qantek.com info@qantek.com
**QCS Series** HC-49/U-S SMD 2-Pad
## Tape and Reel Dimensions
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## Marking Code Guide
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Contains frequency, Qantek manufacturing code, production code (month and year) and load capacitance.
Month Codes Year Codes Load Capacitance Code in pF
January A July G 2010 0 2011 1 2012 2 pF PN Code pF PN Code
February B August H 2013 3 2014 4 2015 5 12 A 20 F
March C September I 18 B 22 G
April D October J 8 C 30 H
May E November K 10 D 32 I
June F December L 16 E S S
Example: First Line: 12.000 (Frequency) Second Line: QA1A (Qantek - January - 2011 - 12 pF)
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## Solder Reflow Profile
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Environmental Specifications
Mechanical Shock MIL-STD-202, Method 213, C
Vibration MIL-STD-202, Method 201 & 204
Thermal Cycle MIL-STD, Method 1010, B
Gross Leak MIL-STD-202, Method 112
Fine Leak MIL-STD-202, Method 112
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All specifications are subject to change without notice.
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## **QANTEK Technology Corporation**
Phone: +1 877-227-0440 (tollfree) www.qantek.com Fax: +1 877-227-0440 (tollfree) info@qantek.com
## Links
- [View this product on Novapart](https://novapart.co/products/QCS8.00000F18B23M/crystal-qcs-8-mhz-20-ppm-30-18-pf)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/qantek-technology-corporation/qcs8-00000f18b23m/crystal-8mhz-18pf-12-5mm-x-4-6mm/dp/2508478RL)
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