# Crystal, AS-SMD, 8 MHz, 30 ppm, 50 ppm, 18 pF

![Product image](https://novapart.co/image/farnell:2509015/)

**URL**: https://novapart.co/products/AS-8.000-18-SMD/crystal-as-smd-8-mhz-30-ppm-50-18-pf
**SKU**: AS-8.000-18-SMD
**Manufacturer**: RALTRON
**Category**: Crystals & Oscillators || Crystals
**Price**: €0.0820
**Stock**: 10+
**Lead Time**: 78 days (indicative)

## Description

Frequency Nom:8MHz; Crystal Case:SMD, 13.5mm x 4.8mm; Frequency Stability + / -:50ppm; Load Capacitance:18pF; Frequency Tolerance + / -:30ppm; Product Range:AS-SMD Series; Operating Temperatu

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Frequency Nom | 8MHz |
| Product Range | AS-SMD |
| Load Capacitance | 18pF |
| Crystal Frequency | 8MHz |
| Crystal Case / Package | SMD, 13.5mm x 4.8mm |
| Frequency Stability + / - | 50ppm |
| Frequency Tolerance + / - | 30ppm |
| Operating Temperature Max | 70°C |
| Operating Temperature Min | -20°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2509015/)

## **SURFACE MOUNT MICROPROCESSOR CRYSTAL** 

Page 1 of 3 

## **SERIES AS-SMD** 

##  **FEATURES** 

- EXCELLENT CLOCK SIGNAL GENERATOR FOR CPU’s 

- AVAILABLE IN EXTENDED TEMPERATURE RANGE 

- LOW PROFILE SURFACE MOUNT 

##  **SPECIFICATIONS** 

|**PARAMETER**|**PARAMETER**|**VALUE**|
|---|---|---|
|FREQUENCY RANGE||3.200 MHz TO 80.000 MHz|
|MODE OF OSCILLATION|FUNDAMENTAL|3.200 MHz TO 40.320 MHz|
||THIRD OVERTONE|24.576 MHz TO 80.000 MHz|
|FREQUENCY TOLERANCE AT 25°C||±30 PPM MAXIMUM<br>(±10PPM,AND±20PPM AVAILABLE)|
|FREQUENCY STABILITY OVER TEMPERATURE||±50 PPM MAXIMUM<br>(±10PPM, ±20PPM AND±30PPM AVAILABLE)|
|OPERATING TEMPERATURE RANGE||-20°C TO +70°C STANDARD<br>-40°CTO +85°CEXTENDED|
|STORAGE TEMPERATURE RANGE||-55°C TO +125°C|
|AGING||±5PPM PER YEAR MAXIMUM|
|LOADCAPACITANCE||10 pFto 32pFORSERIES|
|EQUIVALENTSERIESRESISTANCE||SEE TABLE 1|
|SHUNTCAPACITANCE||7.0 pF MAXIMUM|
|DRIVE LEVEL||500 µW MAX|
|SHOCK RESISTANCE||±5 PPM MAXIMUM 75 cm DROP TEST IN<br>3AXES ON TOA HARDSURFACE|
|REFLOWCONDITIONS||260°C ±5°CFOR 10sMAXIMUM|



|**TABLE 1**<br>~~eal~~|**TABLE 1**<br>~~eal~~|**TABLE 1**<br>~~eal~~|**TABLE 1**<br>~~eal~~|**TABLE 1**<br>~~eal~~|**TABLE 1**<br>~~eal~~|**TABLE 1**<br>~~eal~~|**TABLE 1**<br>~~eal~~|**TABLE 1**<br>~~eal~~|
|---|---|---|---|---|---|---|---|---|
|**FREQUENCY**<br>**(MHz)**<br>~~Po~~|**MODE**<br>~~Po~~|**MAX ESR**<br> **(OHMS)**|**FREQUENCY**<br>**(MHz)**|**MODE**|**MAX ESR**<br> **(OHMS)**|**FREQUENCY**<br>**(MHz)**|**MODE**|**MAX ESR**<br> **(OHMS)**|
|3.579545<br>~~Po~~|FUND<br>~~Po~~|180|8.064|FUND|60|14.7456|FUND|40|
|3.6864<br>~~Po~~<br>~~He~~|FUND<br>~~Po~~<br>~~He~~|150<br>~~GG~~|8.192<br>~~GG~~|FUND<br>~~GG ~~|60<br> ~~GG~~|16.000TO24.000<br>~~GG~~|FUND<br>~~GG~~|40<br>~~GG~~|
|4.000<br>~~OG~~<br>~~Re~~|FUND<br>~~OG~~<br>~~GG~~|130<br>~~OG~~<br>~~GG~~|8.6436<br>~~OG~~<br>~~GG~~|FUND<br>~~OG ~~<br>~~GO~~|60<br> ~~GG~~<br>~~GO~~|24.576<br>~~GG~~<br>~~GO~~|FUND/3OT<br>~~GG~~<br>~~GO~~|40/80|
|4.032<br>~~Re~~|FUND<br>~~GG~~|130<br>~~GG~~|9.600<br>~~GG~~|FUND<br>~~GO~~|60<br>~~GO~~|27.000<br>~~GO~~|FUND/3OT<br>~~GO~~|40/80|
|4.096<br>~~Re ~~<br>~~He~~<br>~~Re~~|FUND<br> ~~GG~~<br>~~He~~<br>~~GG~~|130<br>~~GG~~<br>~~GG~~<br>~~GG~~|9.8304<br>~~GG~~<br>~~GG~~<br>~~GG~~|FUND<br>~~GO~~<br>~~GG ~~<br>~~GO~~|60<br>~~GO ~~<br> ~~GG~~<br>~~GO~~|28.63636<br> ~~GO~~<br>~~GG~~<br>~~GO~~|FUND/3OT<br>~~GO~~<br>~~GG~~<br>~~GO~~|40/80<br>~~GG~~|
|4.194304<br>~~Re~~|FUND<br>~~GG~~|130<br>~~GG~~|10.000<br>~~GG~~|FUND<br>~~GO~~|50<br>~~GO~~|29.000TO40.000<br>~~GO~~|FUND/3OT<br>~~GO~~|40/70|
|4.433619<br>~~Re ~~<br>~~He~~<br>~~Re~~|FUND<br> ~~GG~~<br>~~He~~<br>~~GG~~|130<br>~~GG~~<br>~~GG~~<br>~~GG~~|10.240<br>~~GG~~<br>~~GG~~<br>~~GG~~|FUND<br>~~GO~~<br>~~GG ~~<br>~~GO~~|50<br>~~GO ~~<br> ~~GG~~<br>~~GO~~|40.320<br> ~~GO~~<br>~~GG~~<br>~~GO~~|FUND/3OT<br>~~GO~~<br>~~GG~~<br>~~GO~~|40/70<br>~~GG~~|
|4.9152<br>~~Re~~<br>~~es~~<br>~~a~~|FUND<br>~~GG~~<br>~~BG~~<br>|130<br>~~GG~~<br>~~BG~~<br>|10.244<br>~~GG~~<br>~~BG~~<br>|FUND<br>~~GO~~<br>~~BG~~<br>~~GG~~<br>|50<br>~~GO~~<br>~~BG~~<br>~~GG~~<br>|47.920<br>~~GO~~<br>~~BG~~|3OT<br>~~GO~~<br>~~BG~~|70<br>~~BG~~|
|5.0688<br>~~Re ~~<br>~~es~~<br>~~a~~|FUND<br> ~~GG~~<br>~~BG~~<br>|100<br>~~GG~~<br>~~BG~~<br>|10.245<br>~~GG~~<br>~~BG~~<br>|FUND<br>~~GO~~<br>~~BG~~<br>~~GG~~<br>|50<br>~~GO ~~<br>~~BG~~<br>~~GG~~<br>|48.000TO 80.000<br> ~~GO~~<br>~~BG~~|3OT<br>~~GO~~<br>~~BG~~|70<br>~~BG~~|
|6.000<br>~~es~~<br>~~a~~|FUND<br>~~BG~~<br>|80<br>~~BG~~<br>|11.000<br>~~BG~~<br>|FUND<br>~~BG~~<br>~~GG~~<br>|50<br>~~BG~~<br>~~GG~~<br>|~~BG~~|||
|6.144<br>~~Po~~|FUND<br>~~Po~~|80<br>~~Po~~|11.0592<br>~~Po~~|FUND<br>~~Po~~|50<br>~~Po~~||||
|6.176<br>~~Po~~<br>~~a~~|FUND<br>~~Po~~<br>|80<br>~~Po~~<br>|11.2896<br>~~Po~~<br>|FUND<br>~~Po~~<br>|50<br>~~Po~~<br>||||
|7.15909<br>~~Po~~|FUND<br>~~Po~~|70<br>~~Po~~|12.000<br>~~Po~~|FUND<br>~~Po~~|50<br>~~Po~~||||
|7.3728<br>~~Po~~<br>~~a~~|FUND<br>~~Po~~|70<br>~~Po~~|12.288<br>~~Po~~|FUND<br>~~Po~~|50<br>~~Po~~||||
|7.680<br>~~a~~<br>~~Po~~|FUND|70|12.800|FUND|50||||
|8.000<br>~~Po~~|FUND|60|14.31818|FUND|50||||



RALTRON ELECTRONICS  10400 N.W . 33 ~~[r d  ]~~ STREET  Miami, Florida 33172  U.S.A. Telephone: 305-593-6033   Fax: 305-594-3973    e-mail: sales@raltron.com    web site: http://www.raltron.com 

Page 2 of 3 

## **SURFACE MOUNT MICROPROCESSOR CRYSTAL** 

## **SERIES AS-SMD** 

##  **PART NUMBERING SYSTEM** 

|**TYPE**|**TYPE**|**-**|**FREQUENCY**|**-**|**-**||**LOAD CAPACITANCE**|**LOAD CAPACITANCE**|**LOAD CAPACITANCE**|**LOAD CAPACITANCE**|**LOAD CAPACITANCE**||**-**|**-**||**MODE**||**-**||**TOLERANCE/STABLITY**<br>**(PPM/PPM)**|**TOLERANCE/STABLITY**<br>**(PPM/PPM)**|**TOLERANCE/STABLITY**<br>**(PPM/PPM)**|**TOLERANCE/STABLITY**<br>**(PPM/PPM)**|**TOLERANCE/STABLITY**<br>**(PPM/PPM)**|**TOLERANCE/STABLITY**<br>**(PPM/PPM)**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|AS||**-**|IN MHz|**-**|||**10 TO 32 pF FOR PARALLEL**<br>**S FOR SERIES**||||||**-**|**-**||**Blank FOR < 24.576 MHz**<br>**F FOR ≥ 24.576 MHz**<br>**3OT THIRDOVERTONE**||**-**|||Blank FOR MAXIMUM<br>PPMPPM<br>Example: 1020, 2050|||||
|||||||||||||||||||||||||||
|**-**|||**EXTENDED**<br>**TEMPERATURE**|||||**-**|||**CONFIGURATION**|||**-**|**-**|**HEIGHT (H)**|||||**-**||**TAPE &**<br>**REEL**|||
|||||||||||||||||**Blank FOR 4.6 mm (STANDARD)**||||||||||
|||||||||||||||||**H25 2.5mm (CUSTOM)**||||||||||
|**-**||Blank FOR STANDARD<br>EXT FOR EXTENDED|||||Blank FOR STANDARD|**-**|||SMD|||**-**|**-**|**H27 2.7mm (CUSTOM)**<br>**H30 3.0mm (CUSTOM)**|||||**-**||TR|||
|||||||||||||||||**H32 3.2mm (CUSTOM)**||||||||||
|||||||||||||||||**H35 3.5mm(CUSTOM)**||||||||||



## **EXAMPLE: AS-24.000-18-SMD-TR** 

Surface Mount Microprocessor Crystal, HC-49 SHORT, 24.000 MHz, Fundamental mode, 18 pF load, ±30 ppm Tolerance, ±50 ppm Stability, from -20°C to +70°C, Tape and reel packaging 

##  **MECHANICAL SPECIFICATION** 

##  **CARRIER TAPE DIMENSIONS** 

##  **PACKAGING** 

330 mm REEL DIAMETER 24 mm TAPE WIDTH, 12 mm PITCH QUANTITY: 1000 PIECES PER REEL 

RALTRON ELECTRONICS  10400 N.W . 33 ~~[r d  ]~~ STREET  Miami, Florida 33172  U.S.A. Telephone: 305-593-6033   Fax: 305-594-3973    e-mail: sales@raltron.com    web site: http://www.raltron.com 

Page 3 of 3 

## **SURFACE MOUNT MICROPROCESSOR CRYSTAL** 

## **SERIES AS-SMD** 

## **REFLOW PROFILE** 

**==> picture [377 x 357] intentionally omitted <==**

**----- Start of picture text -----**<br>
||||||||
|---|---|---|---|---|---|---|
|tP|
|TP|
|Critical Zone|
|Ramp-up|TL to TP|
|TL|
|TSMAX|tL|
|Temp.|
|[°C]|Ramp-down|
|TSMIN|
|tS Preheat|
|Time [sec]|
|t[25°C] to Peak|
|Reflow profile|
|Temperature Min Preheat|TSMIN|150°C|
|Temperature Max Preheat|TSMAX|200°C|
|Time|(TSMIN to TSMAX)|tS|60-180|sec.|
|Temperature|TL|217°C|
|Peak Temperature|TP|260°C|
|Ramp-up rate|RUP|3°C/sec max.|
|Ramp-down rate|RDOWN|6°C/sec max.|
|Time within 5°C|of Peak Temperature|tP|10|sec.|
|Time|t[25°C]|to Peak Temperature|t[25°C]|to Peak|480|sec.|
|Time|tL|60-150|sec.|

**----- End of picture text -----**<br>


##  **ENVIRONMENTAL** 

**PARAMETER VALUE** MOISTURE SENSITIVITY LEVEL 1 REACH SVHC COMPLIANT RoHS 6/6 LEAD FREE Compliant ~~=~~ TERMINATION FINISH Sn 

MAY 2012 

RALTRON ELECTRONICS  10400 N.W . 33 ~~[r d  ]~~ STREET  Miami, Florida 33172  U.S.A. Telephone: 305-593-6033   Fax: 305-594-3973    e-mail: sales@raltron.com    web site: http://www.raltron.com 



## Links

- [View this product on Novapart](https://novapart.co/products/AS-8.000-18-SMD/crystal-as-smd-8-mhz-30-ppm-50-18-pf)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/raltron/as-8-000-18-smd/crystal-8mhz-18pf-hc-49s/dp/2509015)
---

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