ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：2.0X1.2 - 32.768KHZ QUARTZ XTAL
- Series：QT2C
- Mfr：QST
- Package：Tape & Reel (TR)
- Type：kHz Crystal (Tuning Fork)
- Frequency：32.768 kHz
- Frequency Stability：-
- Frequency Tolerance：±20ppm
- Load Capacitance：9pF
- ESR (Equivalent Series Resistance)：90 kOhms
- Operating Mode：Fundamental
- Operating Temperature：-40°C ~ 85°C
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：2-SMD, No Lead
- Size / Dimension：0.079" L x 0.047" W (2.00mm x 1.20mm)
- Height - Seated (Max)：0.024" (0.60mm)
Download product information
Overview
The QT2C-32.768KDZC-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a fundamental frequency of 32.768 kHz with a frequency tolerance of ±20 ppm at 25°C. The component features a load capacitance of 9 pF and an equivalent series resistance (ESR) of 90 kOhms. It is housed in a compact 2-SMD, No Lead package with dimensions of 2.0 x 1.2 mm. The device is rated for operation within a temperature range of -40°C to +85°C.
Feature Summary
- Fundamental mode quartz crystal construction
- Compact 2-SMD no-lead surface mount package
- Wide operating temperature range capability
Applications
- Real-time clock circuits
- Microcontroller system clocks
- Low-frequency timing references
Procurement Notes
Verify the specific suffix KDZC-T against official QST documentation to confirm the exact load capacitance and ESR specifications. Ensure the selected variant matches the required 9 pF load capacitance and 90 kOhm ESR for the target circuit design. Confirm package dimensions and thermal ratings align with the application environment before finalizing procurement.
Selection Notes
Select this component when a small footprint is critical for space-constrained designs requiring 32.768 kHz timing. The ±20 ppm tolerance suits general-purpose real-time clock applications where high precision is not mandatory. Consider the 90 kOhm ESR value to ensure compatibility with oscillator circuits designed for higher impedance loads.
Part Context
This part belongs to the QT2C series of ultra-small quartz crystals from QST. The series is characterized by its minimal package size, making it suitable for portable electronics and wearable devices. The 32.768 kHz frequency is standard for binary division to one-second intervals in digital timekeeping systems.
FAQ
What is the equivalent series resistance (ESR) of this crystal?
The QT2C-32.768KDZC-T has an equivalent series resistance of 90 kOhms.
Does this component support leaded mounting?
No, the QT2C-32.768KDZC-T is specified as a 2-SMD, No Lead component designed exclusively for surface-mount technology.
