FC4SDCBGF4.194304-T1

**11.7mm x 5.0mm Resistance Weld SMD Crystal** 

## FC4SD 

(Former HC49SDLF) 

## **Features** 

- Tolerances down to ±10 ppm 

- Stabilities down to ±5 ppm 

- Operating Temperature Range to -55°C ~ +125°C 

|**STANDARD SPECIFICATIONS**|**STANDARD SPECIFICATIONS**|
|---|---|
|**PARAMETERS**|**MAX(Unless otherwise noted)**|
|Frequency Range|3.200 ~ 80.000 MHz|
|Frequency Tolerance @ 25°C|(See options below)|
|Frequency Stability, ref 25°C<br>Over OperatingTempRange|(See options below)|
|Temperature Range<br>Operating (TOPR)<br>Storage(TSTG)|(See options below)<br>-55°C ~ +125°C|
|Shunt Capacitance (CO)|7 pF|
|Load Capacitance (CL)|(See options below)|
|Drive Level|0.5mW (100µW Typical)|
|Aging per year (@ 25°C)|±3 PPM|
|Maximum Soldering Temp / Time|260°C / 10 Seconds x 2|
|Moisture Sensitivity Level (MSL) per<br>J-STD-033|1|
|Termination Finish|Sn/Ag3.0/Cu0.5|
|Seal Method|Resistance Weld|
|Lead (Pb) Free|Yes|
|RoHS Compliant|Yes-No Exemptions|



|**Frequency Range (MHz)**|**Operating Mode**|**Max ESR**Ω|
|---|---|---|
|3.200 ~ 3.500|Fundamental|300|
|>3.500 ~ 4.000|Fundamental|200|
|>4.000 ~ 5.000|Fundamental|150|
|>5.000 ~ 6.000|Fundamental|120|
|>6.000 ~ 7.000|Fundamental|100|
|>7.000 ~ 9.000|Fundamental|80|
|>9.000 ~ 13.000|Fundamental|60|
|>13.000 ~ 20.000|Fundamental|40|
|>20.000 ~ 40.000|Fundamental|30|
|24.000 ~ 70.000|3rd OT|100|
|>70.000 ~ 80.000|3rd OT|70|



## **DIMENSIONS / MECHANICAL SPECIFICATIONS** 

Note: Dimensional drawing is for reference to critical specifications defined by size measurements. Certain non-critical visual attributes, such as side castellations, etc. may vary. 

Revised A: 06/10/2019 

Page 1 of 2 

www.foxonline.com 

**11.7mm x 5.0mm** FC4SD (Former HC49SDLF) **Resistance Weld SMD Crystal** ~~Fe~~ **AVAILABLE OPERATING TEMPERATURES AND STABILITIES* Operating Temperature ±5 PPM ±10 PPM ±15 PPM ±20 PPM ±25 PPM ±30 PPM ±50 PPM ±100 PPM** ~~Po re~~ -10°C to+60°C O O ~~ee~~ O O ~~GO~~ O O O O -20°C to +70°C ∆ O O O O O O O ~~eG~~ -40°C to +85°C X X O O O O O O ~~ee GsGs~~ ~~**G** sD~~ ~~**GD GO**~~ -40°C to+105°C X X X X X ∆ O O ~~ee~~ -40°C to+125°C X X X X X X ∆ O ~~ee GsGs~~ ~~**G** ns~~ ~~**G** Ds~~ ~~**(OO**~~ -55°C to+125°C X X X X X X ∆ O ~~a~~ Key: O = Available, X = Not Available, ∆ = Consult Fox Technical Support *Does not imply a stocked part. **TAPE SPECIFICATIONS (mm) REEL SPECIFICATIONS (mm) A B C D E F REEL QTY G H I J K L M** ø1.55 4.0 12.0 11.5 24.0 4.8 -T1 = 1,000 2.0 Ø13 Ø21 Ø80 Ø330 25.5 2.0 

## **Available Options & Part Identification for Crystal Model C4SD** ~~**[1]**~~ 

## **Sample PN: FC4SDCBMF25.0-T1** 

|**Available Options Optionsptions & Part Identification for Crystal Model C4SD Identification for Crystal Model C4SDdentification for Crystal Model C4SD**~~**[1]**~~<br>**Sample PN: FC4SDCBMF25.0-T1-T1T1**|**Available Options Optionsptions & Part Identification for Crystal Model C4SD Identification for Crystal Model C4SDdentification for Crystal Model C4SD**~~**[1]**~~<br>**Sample PN: FC4SDCBMF25.0-T1-T1T1**|**Available Options Optionsptions & Part Identification for Crystal Model C4SD Identification for Crystal Model C4SDdentification for Crystal Model C4SD**~~**[1]**~~<br>**Sample PN: FC4SDCBMF25.0-T1-T1T1**|**Available Options Optionsptions & Part Identification for Crystal Model C4SD Identification for Crystal Model C4SDdentification for Crystal Model C4SD**~~**[1]**~~<br>**Sample PN: FC4SDCBMF25.0-T1-T1T1**|**Available Options Optionsptions & Part Identification for Crystal Model C4SD Identification for Crystal Model C4SDdentification for Crystal Model C4SD**~~**[1]**~~<br>**Sample PN: FC4SDCBMF25.0-T1-T1T1**|**Available Options Optionsptions & Part Identification for Crystal Model C4SD Identification for Crystal Model C4SDdentification for Crystal Model C4SD**~~**[1]**~~<br>**Sample PN: FC4SDCBMF25.0-T1-T1T1**|**Available Options Optionsptions & Part Identification for Crystal Model C4SD Identification for Crystal Model C4SDdentification for Crystal Model C4SD**~~**[1]**~~<br>**Sample PN: FC4SDCBMF25.0-T1-T1T1**|**Available Options Optionsptions & Part Identification for Crystal Model C4SD Identification for Crystal Model C4SDdentification for Crystal Model C4SD**~~**[1]**~~<br>**Sample PN: FC4SDCBMF25.0-T1-T1T1**|
|---|---|---|---|---|---|---|---|
|**F**|**C4SD**|**C**|**B**|**M**|**F**|**25.0**|**-T1**|
|**Fox**|**Model**<br>**Number**|**Tolerance**<br>B = ±50ppm<br>**C = ±30ppm**<br>D = ±25ppm<br>E = ±20ppm<br>F = ±15ppm<br>H = ±10ppm|**Stability**<br>A = ±100 ppm<br>**B = ±50 ppm**<br>C = ±30 ppm<br>D = ±25 ppm<br>E = ±20 ppm<br>F = ±15 ppm<br>H = ±10 ppm<br>L = ±5ppm|**Load**<br>**Capacitance2 **<br>A = Series<br>E = 10pF<br>G = 12pF<br>J = 15pF<br>K = 16pF<br>L = 18pF<br>**M = 20pF **|**Operating**<br>**Temperature**<br>D = -10 to +60°C<br>**F = -20 to +70°C**<br>M = -40 to +85°C<br>P = -40 to +105°C<br>I = -40 to +125°C<br>T = -55 to +125°C|**Frequency**<br>**(MHz)**|**Values Added**<br>**Options**<br>Blank = Bulk<br>T1 = 1,000 pcs|



1 Not all frequency, tolerance, stability, load, and operating temperature combinations may be available. 2 Listed load capacitances represent the most commonly used. Other load capacitances are available. Contact us for assistance 

**Reliability Test Conditions** ~~—~~ Please contact Abracon Quality Assurance department 

Revised A: 06/10/2019 

Page 2 of 2 

www.foxonline.com