MT MM F32 MTF32 TF3 SM 2 MMTF32 Quartz Crystal • MTF JXE 63 26F SM26F Tuning Fork Quartz Crystal Features ■ three different package versions ■ surface mount version available actual size General Data type MTF32 frequency 32.768 kHz frequency tolerance at 25 °C ± 10 ppm ± 20 ppm ± 10 ppm ± 20 ppm ± 20 ppm ± 30 ppm load capacitance CL 10 pF 12.5 pF 10 pF 12.5 pF 12.5 pF 12.5 pF frequency temperature characteristic f (ppm) = -0.036 ( 25°C -T* )2 f (ppm) = -0.036 ( 25°C -T* )2 f (ppm) = -0.036 ( 25°C -T* )2 operating tenperature range -20°C ~ +70°C / -40°C ~ +85°C -20°C ~ +70°C / -40°C ~ +85°C -20°C ~ +70°C / -40°C ~ +85°C shunt capacitance Co 1.3 pF typical 1.1 pF typical 1.1 pF typical ratio Co / C1 530 typical 470 typical 570 typical series resistance max. ( ESR ) 30.0 kΩ 30.0 kΩ 50.0 kΩ storage temperature -40 °C ~ +90 °C -40 °C ~ +90 °C -40 °C ~ +90 °C drive level max. 1 µW 1 µW 1 µW aging first year < ± 5 ppm < ± 5 ppm < ± 5 ppm MMTF32 (15.0 ~ 150.0 kHz) 32.768 kHz SM26F (28.0 ~ 80.0 kHz) 32.768 kHz (28.0 ~ 80.0 kHz) * T = requested temperature Frequency Stability vs. Temperature - 80 ppm -20 °C ~ +70 °C STD. -40 °C ~ +85 °C T1 • • Marking - 160 ppm KDS 32.768 / date code ( month / year ) date code: • A ~ M: Jan.- Dec. 2: 2002 / 3: 2003 standard Jan. A Febr. B Mar. C Apr. D May E June F July G Aug. H Sept. J Oct. K Nov. L Dec. M Order Information Q Quartz frequency in MHz 0.032768 MHz standard 15.0 ~ 150.0 kHz MTF32 28.0 ~ 80.0 kHz MMTF32 28.0 ~ 80.0 kHz SM26F type load capacitance in pF MTF32 MMTF32 SM26F 6 pF ~ 12,5 pF stability at 25 °C in ppm ± 20 ppm ± 10 ppm option T1= -40°C~+85°C Example: Q 0.032768-MTF32-12.5-20 The pulse of progress Jauch Quartz GmbH • Telephone: (+49) 77 20 / 9 45-0 • Telefax: (+49) 77 20 / 9 45-100 • Internet: www.jauch.de • e-mail: [email protected] • 08/2002 Quartz Crystal • MTF32 • MMTF32 • SM26F Dimensions MTF32 tuning fork crystal - handling note for through hole type 1. mounting: • if the crystal is mounted on board directly (orientation: lay down) or fixed by metal parts, the body of the crystal will be heated up • recommended mounting: ø 0.35±0.02 1.1±0.2 10.0±1.0 3.0+0.1/-0.2 8.0+0.3/-0.2 crystal rubber glue paste in mm PC board anti-heating material 2. soldering: • pre-heating +130 °C ~ + 150 °C for 1 to 3 mintues • soldering +230 °C ~ + 250 °C for 5 seconds maximum MMTF32 ø 0.28±0.05 • ultrasonic cleaning with organic solvents • ultrasonic frequency should not be equal to the resonance frequency of the crystal 4. handling: • handle the crystal carefully, it cannot stand heavy shock 5. testing: • if you test the whole board automatically do not apply pulse to the crystal oscillator circuit, especially high pulse level can break the crystal blank in mm SM26F type A (1000 pcs per reel) 3.4 3.25 max. 1.1±0.2 1.7 ø 0.305±0.03 2.1±0.2 2.9±0.3 ø 2.0±0.1 6.0+0.1/-0.2 pad layout SM26F type B (1000 pcs per reel) 1.0 2.0+0.1/-0.2 7.5 3. cleaning: ±1.0 0.7±0.2 6.0 +0.1/-0.2 0.7±0.1 3.8 1.9 in mm pad layout 3.0±0.2 2.1 max. ø 0.305±0.03 2.0±0.2 2.54±0.2 ø 2.0±0.1 2.5 1.0 1.75 2.54 2.5 6.0+0.1/-0.2 0.7±0.1 6.0 in mm The pulse of progress Jauch Quartz GmbH • Telephone: (+49) 77 20 / 9 45-0 • Telefax: (+49) 77 20 / 9 45-100 • Internet: www.jauch.de • e-mail: [email protected] • 08/2002