HC-49/U, HC-49/T, HC-50/U Series
H49MJ, 49TMJ Series
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  • The H49/U and H50/U series are the resistance-weld version of the old solder seal types HC-18/U and HC-25/U respectively. They are physically interchangeable.
  • No solder or flux involved in the sealing process. Low aging.
  • HC-49/U is wire lead type and HC-50/U is plug-in type.
  • Two different holder heights to choose from: 13.6mm and 11.2mm.

SPECIFICATIONS:

 

Thru-hole types:

Surface Mount Types:

Crystal Holder Prefix

  • H49: Can height = 13.6 mm
  • H50: Plug-in version of HC-49/U
  • H49T: Can height= 11.2 mm
  • H49MJ: Gull wing with metal jacket SMD version of HC-49/U
  • 49TMJ: Gull wing with metal jacket SMD version of HC-49/T

Frequency Range and Mode of Oscillation

See E.S.R. table below

Frequency Tolerance at +25C

SL-cut: ±50 ppm (±0.005%) at 25C;
AT-cut: ±30 ppm (±0.003%) at 25C
Tolerance as tight as ±3 ppm is also available.

Frequency Stability

SL-cut: ±100 ppm (±0.01%) over -10 to +60C
AT-cut: ±50 ppm (±0.005%) over -10 to +60C. Stability as tight as ±3 ppm over 0 to +50C or ±7 ppm over –20 to +70C is also available.

Shunt Capacitance (Co)

7 pF maximum

Load Capacitance (CL)

Series (spec. code is "S") or
Parallel (If parallel, please specify exact CL value, 8 to 32 pF is common)

Equivalent Series Resistance (E.S.R.)

Frequency

Osc. Mode

E.S.R. max.

Frequency

Osc. Mode

E.S.R. max.

1.0 ~1.3

SL cut

5000 ohms

7.01 ~10.0

AT cut funda.

35 ohms

2.01 ~3.0

AT cut funda.

400 ohms

10.0 ~ 30.0

AT cut funda.

25 ohms

3.01 ~3.2

AT cut funda.

200 ohms

30.01 ~45.0

AT cut funda.

20 ohms

3.21 ~3.5

AT cut funda.

150 ohms

24.0 ~100.0

AT cut 3rd O/T

40 ohms

3.51 ~3.9

AT cut funda.

120 ohms

80.0 ~160.0

AT cut 5th O/T

70 ohms

3.91 ~5.0

AT cut funda.

100 ohms

110.0 ~200.0

AT cut 7th O/T

120 ohms

5.01 ~7.0

AT cut funda

50 ohms

     

Drive Level

1 mW maximum

Aging

Less than 2 ppm per year max. at +25C

Available Options (If required please add the following designator as a suffix to the MEC part number):

"V" =

Vinyl sleeve around holder

"K" =

3rd lead at bottom center

"R" =

On Reel

"G" =

Ground lead at top center

"I" =

Teflon insulator at bottom center

Standard Frequencies and Part Number: (partial list)
Custom spec. welcome. Tighter tolerance available.

MEC Part Number

MEC Specification Code

MEC Part Number

MEC Specification Code

H49-1.000-32P

50/100/-10+60/5000R (SL-cut)

H49-10.245-20P

30/50/-10+70/25R

H49-1.048576-13P

50/100/-10+60/5000R (SL-cut)

H49-11.0592-20P

30/50/-10+70/25R

H49-1.228-13P

50/100/-10+60/5000R (SL-cut)

H49-12.000-20P

30/50/-10+70/25R

H49-1.8432-32P

30/50/-10+70/800R (AT-cut)

H49-12.000393-32P

30/50/-10+70/25R

H49-2.000-20P

30/50/-10+70/800R

H49-12.288-32P

30/50/-10+70/25R

H49-2.097152-20P

30/50/-10+70/500R

H49-14.31818-S

30/50/-10+70/25R

H49-2.4576-32P

30/50/-10+70/300R

H49-14.7456-S

30/50/-10+70/25R

H49-2.516-20P

30/50/-10+70/300R

H49-16.000-S

30/50/-10+70/25R

H49-3.2768-32P

30/50/-10+70/200R

H49-16.000312-32P

30/50/-10+70/25R

H49-3.579545-S

30/50/-10+70/100R

H49-18.432-S

30/50/-10+70/25R

H49-3.579545-18P

30/50/-10+70/100R

H49-19.6608-20P

30/50/-10+70/25R

H49-3.6864-20P

30/50/-10+70/100R

H49-23.04-20P

30/50/-10+70/25R

H49-4.000-S

30/50/-10+70/100R

H49-24.000-S

30/50/-10+70/25R

H49-4.000-20P

30/50/-10+70/100R

H49-24.00014-S

30/50/-10+70/25R

H49-4.194304-12P

30/50/-10+70/100R

H49-24.576-S

30/50/-10+70/25R

H49-4.433619-20P

30/50/-10+70/100R

H49-28.322-32P

30/50/-10+70/25R

H49-4.9152-S

30/50/-10+70/100R

H49-29.4912AF-S

30/50/-10+70/25R (AT-cut funda.)

H49-5.0688-20P

30/50/-10+70/100R

H49-32.000A3-S

30/50/-10+70/40R (AT-cut 3rd O/T)

H49-6.000-S

30/50/-10+70/50R

H49-352512A3-18P

15/30/-10+70/40R (AT-cut 3rd O/T)

H49-6.144-30P

30/50/-10+70/50R

H49-40.000A3-S

30/50/-10+70/40R (AT-cut 3rd O/T)

H49-7.3728-20P

30/50/-10+70/50R

H49-40.032A3-S

30/50/-10+70/40R (AT-cut 3rd O/T)

H49-8.000-20P

30/50/-10+70/45R

H49-48.000A3-S

30/50/-10+70/40R (AT-cut 3rd O/T)

H49-8.064-32P

30/50/-10+70/45R

H49-80.00A5-S

30/50/-10+70/60R (AT-cut 5th O/T)

H49-8.192-S

30/50/-10+70/45R

H49-100.000A5-S

30/50/-10+70/60R (AT-cut 5th O/T)

H49-9.8304-20P

30/50/-10+70/35R

H49-152.650A7-S

30/50/-10+70/80R (AT-cut 7th O/T)

H49-10.000-20P

30/50/-10+70/25R