# Crystal, HC49USM Series, 14.7456 MHz, 50 ppm, 50 ppm, 18 pF

![Product image](https://novapart.co/image/farnell:3572979/)

**URL**: https://novapart.co/products/HC49USM-BA3FT20-14.7456%20MHZ/crystal-hc49usm-series-147456-mhz-50-ppm-18-pf
**SKU**: HC49USM-BA3FT20-14.7456 MHZ
**Manufacturer**: ILSI AMERICA
**Category**: Crystals & Oscillators || Crystals
**Price**: €0.1150
**Stock**: 10+
**Lead Time**: 78 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Frequency Nom | 14.7456MHz |
| Product Range | HC49USM Series |
| Load Capacitance | 18pF |
| Crystal Frequency | 14.7456MHz |
| Crystal Case / Package | SMD, 13.3mm x 4.7mm |
| Frequency Stability + / - | 50ppm |
| Frequency Tolerance + / - | 50ppm |
| Operating Temperature Max | 70°C |
| Operating Temperature Min | -20°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3572979/)

2 Pad Metal Package, 4.7 mm x 13.3 mm                                                       HC49USM Series 

**==> picture [511 x 435] intentionally omitted <==**

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|||||
|---|---|---|---|
|Product Features:|Applications:|
|Low Cost SMD Package|Fibre Channel|
|Low ESR|Server & Storage|
|Compatible with Leadfree Processing|Sonet /SDH|
|802.11 / Wifi|
|T1/E1, T3/E3|13.3 Max.|11.4 0.2|
|System Clock|
|4.73 0.1|
|Frequency|3.2 MHz to 100.000 MHz|H Max.|
|See Part|
|Number Guide|
|ESR (Equivalent Series Resistance)|
|3.2 MHz – 3.49 MHz|300 Ω Max.|
|3.5 MHz – 3.99 MHz|200 Ω Max.|
|4.0 MHz – 4.99 MHz|150 Ω Max.|
|5.0 MHz – 5.99 MHz|120 Ω Max.|
|6.0 MHz – 6.99 MHz|100 Ω Max.|3.9 Nom.|
|7.0 MHz – 8.9 MHz|80 Ω Max.|
|9.0 MHz – 12.9 MHz|60 Ω Max.|yy|
|13 MHz – 19.9 MHz|40 Ω Max.|tT.|
|20 MHz – 36 MHz|30 Ω Max.|0.5 Min.|
|27 MHz – 100 MHz (3rd O.T.)|100 Ω Max.|nna|
|Shunt Capacitance (C0)|7 pF Max.|Insulator|
|Frequency Tolerance @ 25|° C|±30 ppm Standard (see Part Number Guide for more options)|0.8 0.2|
|Frequency Stability over|
|TCrystal Cut emperature|±AT Cut Standard 50 ppm Standard (see Part Number Guide for more options)|.|i]|
|5.5|
|Load Capacitance|18 pF Standard (see Part Number Guide for more options)|
|ao Ld|
|Drive Level|1 mW Max.|A|
|Aging|±5 ppm Max. / Year Standard|1.6|
|Temperature|Recommended|
|Pad Layout|
|0° C to +70° C Standard (see Part Number Guide for more|
|Operating|
|options)|Dimension Units:  mm|
|Storage|-40° C to +85° C Standard|

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||||||||
|---|---|---|---|---|---|---|
|Part Number Guide|Sample Part Number:|HC49USM – FB1F18 - 20.000|
|Package|Tolerance|Stability|Operating|Mode|Load Capacitance|Frequency|
|(ppm) at Room|(ppm) over Operating|Temperature Range|(overtone)|(pF)|
|Temperature|Temperature|
|B = ±50 ppm|B = ±50 ppm|0 = 0°C to +50°C|F = Fundamental|
|HC49USM -|
|(4.5 mm H)|F = ±30 ppm|F = ±30 ppm|1 = 0°C to +70°C|3 = 3|[rd]|overtone|
|HC49USM2 -|G = ±25 ppm|G = ±25 ppm|2 = -10°C to +60°C|18 pF Standard|
|- 20.000 MHz|
|(3.5 mm H)|H = ±20 ppm|H = ±20 ppm|3 = -20°C to +70°C|or Specify|
|HC49USM3 -|I = ±15 ppm|I = ±15 ppm|5 = -40°C to +85°C|
|(3.1 mm H)|
|J = ±10 ppm|J = ±10 ppm|9 = -10°C to +50°C|

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


**ILSI America** Phone: 775-851-8880 • Fax: 775-851-8882• e-mail: e-mail@ilsiamerica.com • www.ilsiamerica.com 04/09                                                                       Specifications subject to change without notice 

Page 1 

## y RoHS AEST Seen 2 Pad Metal Package, 4.7 mm x 13.3 mm                                                       HC49USM Series **Pb Free Solder Reflow Profile: Typical Circuit:** 

*Units are backward compatible with 240C reflow processes 

## **Package Information:** 

MSL = N/A 

Termination = e1 (Sn / Cu / Ag over Ni over Kovar base metal). 

## **Tape and Reel Information:** 

|**Quantity per**<br>**Reel**|**1000**|
|---|---|
|A<br>**B**|24 +/-.3<br>12 +/-.2|
|**C**|11.5 +/-.2|
|**D**|25 +/-1.5|
|**E**|80/100|
|**F**|330|



## **Environmental Specifications** 

|Thermal Shock|MIL-STD-883,Method 1011,Condition A|
|---|---|
|Moisture Resistance|MIL-STD-883,Method 1004|
|Mechanical Shock|MIL-STD-883,Method 2002,Condition B|
|Mechanical Vibration|MIL-STD-883,Method 2007,Condition A|
|Resistance to SolderingHeat|J-STD-020C,Table 5-2 Pb-free devices(except 2 cycles max)|
|Hazardous Substance|Pb-Free / RoHS / Green Compliant|
|Solderability|JESD22-B102-D Method 2(PreconditioningE)|
|Terminal Strength|MIL-STD-883,Method 2004,Test Condition D|
|Gross Leak|MIL-STD-883,Method 1014,Condition C|
|Fine Leak|MIL-STD-883,Method 1014,Condition A2,R1=2x10-8 atm cc/s|
|Solvent Resistance|MIL-STD-202, Method 215|



## **Marking** 

Line 1:  ILSI, Frequency, Date Code 

**ILSI America** Phone: 775-851-8880 • Fax: 775-851-8882• e-mail: e-mail@ilsiamerica.com • www.ilsiamerica.com 04/09                                                                       Specifications subject to change without notice 

Page 2 



## Links

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- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/ilsi-america/hc49usm-ba3ft20-14-7456-mhz/crystal-14-7456mhz-18pf-13-3-x/dp/3572979)
---

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