# Crystal, ABLS Series, 4 MHz, 50 ppm, 50 ppm, 18 pF

![Product image](https://novapart.co/image/farnell:4327336/)

**URL**: https://novapart.co/products/ABLS-LR-4.000MHZ-T/crystal-abls-series-4-mhz-50-ppm-18-pf
**SKU**: ABLS-LR-4.000MHZ-T
**Manufacturer**: ABRACON
**Category**: Crystals & Oscillators || Crystals
**Price**: €1.2900
**Stock**: 500+
**Lead Time**: 92 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Frequency Nom | 4MHz |
| Product Range | ABLS Series |
| Load Capacitance | 18pF |
| Crystal Frequency | 4MHz |
| Crystal Case / Package | SMD, 11.5mm x 4.8mm |
| Frequency Stability + / - | 50ppm |
| Frequency Tolerance + / - | 50ppm |
| Operating Temperature Max | 70°C |
| Operating Temperature Min | 0°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4327336/)

**SMD MICROPROCESSOR CRYSTALUltra-low ESR HC49/US (AT49)** 

**11.5 x 4.8 x 4.2 mm** 

## **ABLS-LR** 

## RoHS **Pb** © Compliant 

## **Moisture Sensitivity Level (MSL) – This product is Hermetically Sealed and not Moisture Sensitive - MSL = N/A: Not Applicable** 

## — **APPLICATIONS:** 

- Ultra low ESR as low as 20 ohms for 4MHz, 85% lower than typical SMD Low Profile HC49S Crystals 

- Low negative resistance(-R) IC design can ensure high oscillation margin 

- Tight stability and automotive grade temperature available 

   - Low negative resistance u-controller design for low frequency 

   - Wide range of automotive applications 

   - Industrial applications 

- Hermetically resistance weld sealed 

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||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|.|STANDARD SPECIFICATIONS:|
|P|Parameters|Minimum|Typical|Maximum|Units|Notes|TABLE 1: ESR|
|FREQUENCY (MHz)|ESR (Ω) Max.|
|a|Ferquency|Rang e|3|3 6|MH z|3.000000|100|
|3.072000|100|
|Opoitare nMod e|Fundame latn|
|3.276800|75|
|———|Operating Temperature|a|0|+70|ºC|See options|3.500000 ~ 4.000000MHz|40|
|Sotarg eTemputare er|-55|a|a|+125|ºC|4.000001 ~ 4.500000MHz|30|
|oo|Frequency Tolerance @+25|°|C|a|-50|+50|ppm|See options|46.000000.500001 ~  ~ 5.9999997.499999MHz MHz|2250|
|Frequency|7.500000 ~ 12.999999MHz|15|
|Stability over the|3.0~3.579545MHz|-100|+100|Standard only|13.000000 ~ 36.000000MHz|10|
|Operating|ppm|
|Temperature ( ref. to +25|°|C)|3.579545~36MHz|-50|ee|+50|See options|
|Se|Equivalent series resistance (R1)|See table 1 below|Ω|
|Shuc tnapaaticnc e(C0)|7|pF|
|Loac dapaaticnc e(CL)|1 8|pF|Seo epoitn s|
|————|Dvir eLev le|ee|10 0|100 0|ee|µW|ee|
|Anig g|- 5|+ 5|ppm|@25|°|C±3|°|C|
|ee|First year|
|po|Insoitalu nReatsisnc e|50 0|MΩ|@1 00Vd1 ± c5V|
|es|Spuoiru sRespons e|eeee|- 3|dB|
|Minimum 7 points tested: from 1µW to 500µW.|
|Change in frequency (Maximum - Minimum) over DLD range < ±10ppm|
|Drive level dependency (DLD)|Change in ESR (Maximum - Minimum) over DLD range < 25% of Max ESR|
|value.|
|a|Maximum ESR over DLD range < Max ESR value.|
|OPTIONS & PART IDENTIFICATION:|(Left blank if standard)|
|ABLS - LR-                MHz -     -             -|
|Frequency in MHz|Packaging|
|Blank: Bulk|
|Please specify the frequency|
|in MHz.|e.g. 14.31818MHz|T: Tape & Reel|
|Load Capacitance (pF)|Freq. Stability|
|Please specify CL  in pF|U**: ± 10|ppm|
|(10pF minimum) or S for series|Operating Temp.|A: -10°C ~ +60°C|Freq. Tolerance|1: ± 10|ppm|G:X: ± 1 ± 250|ppppm m|
|B: -20°C ~ +70°C|7: ± 15|ppm|W: ± 25|ppm|
|C: -30°C ~ +70°C|2: ± 20|ppm|Y: ± 30|ppm|
|N: -30°C ~ +85°C|3: ± 25|ppm|H: ± 35|ppm|
|D: -40°C ~ +85°C|4: ± 30|ppm|Q: ± 100|ppm|
|J*: -40°C ~ +105°C|NOTE:|R: ± 150|ppm|
|K*: -40°C ~ +125°C|* Frequency stability R option (±150ppm) only.|
|L*: -55°C ~ +125°C|Contact ABRACON for tighter frequency stability.|
|** For -10 to +60C only.|
|a5|
|2 Faraday, Suite# B|||Irvine|||CA 92618|Revised: 04.17.16|
|ABRACON IS|
|ISO9001:2008|LLC|Ph. 949.546.8000|||Fax. 949.546.8001|
|CERTIFIED|Visit  www.abracon.com for Terms and Conditions of Sale|

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


## **SMD MICROPROCESSOR CRYSTALUltra-low ESR HC49/US (AT49)** 

## **ABLS-LR** 

## **Pb** 

## RoHS 

Compliant **11.5 x 4.8 x 4.2 mm** 

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Dimensions: inches (mm)<br>**----- End of picture text -----**<br>


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T = tape and reel (1000pcs/reel)<br>**----- End of picture text -----**<br>


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S* M A X O nN)<br>as i c HO<br>ay<br>$13.04 5 2. 0-—<br>“i \. 5 Oo<br>iG S ; !<br>oO _<br>Dimensions: mm<br>**----- End of picture text -----**<br>


**ATTENTION: Dimensions: mm** Abracon Corporation’s products are COTS – Commercial-Off-The-Shelf products; suitable for Commercial, Industrial and, where designated, Automotive Applications.  Abracon’s products are not specifically designed for Military, Aviation, Aerospace, Life-dependant Medical applications or any application requiring high reliability where component failure could result in loss of life and/or property. For applications requiring high reliability and/or presenting an extreme operating environment, written consent and authorization from Abracon Corporation is required. Please contact Abracon Corporation for more information. 

2 Faraday, Suite# B **|** Irvine **|** CA 92618 **Revised: 04.17.16** Ph. 949.546.8000 **|** Fax. 949.546.8001 Visit  www.abracon.com for Terms and Conditions of Sale | 

**ABRACON IS** ISO9001:2008 **CERTIFIED** | 

The Power of Linking Together 4£—4 ABRACON 

**LLC** 



## Links

- [View this product on Novapart](https://novapart.co/products/ABLS-LR-4.000MHZ-T/crystal-abls-series-4-mhz-50-ppm-18-pf)
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- [Supplier page](https://es.farnell.com/abracon/abls-lr-4-000mhz-t/xtal-4mhz-18pf-smd-11-5mm-x-4/dp/4327336)
---

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