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Microchip Technology VMK3-9005-32K7680000
- Part No.:
- VMK3-9005-32K7680000
- Manufacturer:
- Microchip Technology
- Category:
- Crystals
- Package:
- 2-SMD, No Lead
- Datasheet:
-
VMK3-9005-32K7680000.pdf
- Description:
- VMK3-9005-32K7680000
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
VMK3-9005-32K7680000 from Microchip Technology is a 32.768 kHz fundamental-mode tuning fork crystal in a 3.2 mm × 1.5 mm ceramic VDFN package, with ±20 ppm frequency tolerance at +25°C, –40°C to +85°C operating temperature range, and 12.5 pF load capacitance - optimized for low-power RTC timing in space-constrained wearables and IoT endpoints.
For engineers reviewing the VMK3-9005-32K7680000 datasheet, VMK3-9005-32K7680000 pinout, VMK3-9005-32K7680000 application, or VMK3-9005-32K7680000 equivalent, key selection criteria include aging stability (±3 ppm/yr), ESR ≤70 kΩ, turnover temperature (20–30°C), and RoHS-compliant lead-free assembly compatibility.
Technical Context
This 32.768 kHz quartz tuning fork operates in fundamental mode with motional capacitance of 3.5 fF and shunt capacitance of 1.2–3.0 pF, enabling precise 1 Hz clock generation via CMOS oscillator circuits. Its parabolic frequency vs. temperature curve centers near 25°C, delivering stable timekeeping across industrial and medical ambient conditions.
The device uses hermetic ceramic packaging with two terminals and requires external load capacitors matching its specified 12.5 pF CL value. Drive level is limited to 1.0 µW to prevent activity dips or long-term aging acceleration, and ultrasonic cleaning is strictly prohibited per reliability guidelines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Frequency | 32.768 kHz - standard RTC reference for 1-second timebase division |
| Frequency Tolerance | ±20 ppm at +25°C - ensures initial time error ≤1.7 sec/day before calibration |
| Operating Temperature | –40°C to +85°C - supports extended-range operation in outdoor IoT and medical monitors |
| Load Capacitance | 12.5 pF - requires matching external capacitors in oscillator circuit design |
| ESR | ≤70 kΩ - guarantees reliable oscillation start-up with low-power CMOS ICs |
| Aging (1st Year) | ±3 ppm - limits long-term drift to <0.26 sec/day over 12 months |
| Turnover Temperature | 20–30°C - defines peak frequency stability point for minimal thermal drift |
Pinout & Package
VMK3-9005-32K7680000 is housed in a 2-lead VDFN ceramic package measuring 3.2 mm × 1.5 mm with bottom-side terminations. Pin one is identified by a dot mark on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Oscillator Input / Anode | Connects to inverter input node in Pierce oscillator configuration |
| Terminal 2 | Oscillator Output / Cathode | Connects to inverter output node; completes resonant feedback path |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic Ceramic VDFN Package | Enables moisture resistance and mechanical robustness in compact wearable PCBs |
| ±20 ppm Initial Accuracy | Reduces need for factory calibration in battery-powered RTC applications |
| Low 1.0 µW Drive Level | Extends crystal lifetime and prevents activity dip in ultra-low-power systems |
| MSL 1 Moisture Sensitivity | Allows unlimited floor life and eliminates bake requirements before reflow |
| RoHS & Lead-Free Compatible | Supports Pb-free soldering processes without performance degradation |
Applications
| Real-Time Clock Modules | Bluetooth LE Wearables |
|---|---|
Use Scenario: Battery-powered wrist-worn devices requiring accurate timekeeping over multi-year deployments. IC Role / Device Role / Timing Role: Primary 32.768 kHz timebase for RTC peripheral in BLE SoC or MCU. Use Value: Low ESR and ±3 ppm/year aging ensure <10 sec cumulative drift over 3 years without software correction. | Use Scenario: Compact earbud or hearable designs where board area and power budget are severely constrained. IC Role / Device Role / Timing Role: Reference oscillator for sleep-clock generation and BLE advertising interval timing. Use Value: 3.2 mm × 1.5 mm footprint enables placement adjacent to RF ICs without compromising layout isolation. |
| Portable Medical Monitors | Smart Utility Meters |
Use Scenario: Handheld glucose meters and pulse oximeters operating across wide ambient temperatures. IC Role / Device Role / Timing Role: Timekeeping source for data logging timestamps and alarm scheduling. Use Value: –40°C to +85°C rating and 20–30°C turnover temperature minimize thermal time error in clinical environments. | Use Scenario: AMI (Advanced Metering Infrastructure) endpoints deployed outdoors with seasonal temperature swings. IC Role / Device Role / Timing Role: Precision timing element for secure firmware update scheduling and billing interval tracking. Use Value: ±20 ppm tolerance and ±3 ppm/year aging meet ANSI C12.1 and IEC 62053-21 accuracy requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32.768 kHz crystal applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ABM3B-32.768KHZ-D2Y-T | 3.2 mm × 1.5 mm SMD, ±20 ppm, 12.5 pF CL, ESR ≤80 kΩ, –40°C to +85°C | Slightly higher ESR may reduce margin in marginal oscillator designs | Select when ABM3B series qualification is already established in production |
| ECX-327MVLF | 3.2 mm × 1.5 mm SMD, ±20 ppm, 12.5 pF CL, ESR ≤70 kΩ, –40°C to +85°C, same footprint | Identical electrical specs and package; different manufacturer qualification history | Preferred for dual-sourcing where identical ESR and aging performance are required |
Compared with VMK3-9005-32K7680000, ABM3B-32.768KHZ-D2Y-T offers broader distributor availability but slightly higher ESR, while ECX-327MVLF matches all critical parameters and enables seamless second-source qualification without layout or circuit changes.
Availability
VMK3-9005-32K7680000 is available at Aetrix Electronics and suitable for real-time clock modules, Bluetooth LE wearables, and portable medical monitors requiring stable component supply across multi-year product lifecycles.
Supply support for VMK3-9005-32K7680000 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and timing solutions, with global manufacturing and quality certifications including ISO 9001 and IATF 16949.
The VMK series targets ultra-low-power, high-reliability timing applications in wearables, medical, and industrial IoT, emphasizing small-footprint hermetic crystals with controlled aging and thermal stability.
FAQ
What is the load capacitance requirement for VMK3-9005-32K7680000?
The VMK3-9005-32K7680000 specifies a nominal load capacitance of 12.5 pF. This value must be matched by the sum of external capacitors and stray capacitance in the oscillator circuit to achieve rated frequency accuracy. Deviations will shift operating frequency proportionally to the capacitance error.
Does VMK3-9005-32K7680000 support reflow soldering?
Yes, VMK3-9005-32K7680000 is qualified for Pb-free reflow per JEDEC J-STD-020, with peak temperature up to 260°C for ≤10 seconds. The device has Moisture Sensitivity Level (MSL) 1, meaning it can be stored indefinitely at ≤30°C/60% RH without baking prior to assembly.
What is the maximum drive level for VMK3-9005-32K7680000?
The VMK3-9005-32K7680000 must not exceed 1.0 µW of drive level to avoid accelerated aging or activity dips. This limit is enforced by proper oscillator gain control and external resistor selection in the Pierce configuration used with CMOS ICs.
Can VMK3-9005-32K7680000 be cleaned using ultrasonic methods?
No - ultrasonic cleaning is strictly prohibited for VMK3-9005-32K7680000. Tuning fork crystals resonate near ultrasonic frequencies, risking structural damage or electrical parameter degradation. Alternative cleaning methods such as vapor-phase or aqueous spray must be validated per Microchip's reliability guidelines.
What does the '9005' suffix indicate in VMK3-9005-32K7680000?
The '9005' in VMK3-9005-32K7680000 decodes as: '9' = 12.5 pF load capacitance (per Microchip's coding table), '00' = year-week date code (2000 week), and '5' = internal revision. It confirms the part is configured for 12.5 pF CL and falls under the VMK3 3.2 mm × 1.5 mm VDFN family.
VMK3-9005-32K7680000 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- VMK3
- Package/Case:
- 2-SMD, No Lead
- Packaging:
- Strip
- Product Status:
- Active
- Type:
- kHz Crystal (Tuning Fork)
- Frequency:
- 32.768 kHz
- Frequency Stability:
- -
- Frequency Tolerance:
- -
- Load Capacitance:
- -
- ESR (Equivalent Series Resistance):
- -
- Operating Mode:
- Fundamental
- Operating Temperature:
- -40°C ~ 85°C
- Ratings:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
- Size / Dimension:
- 0.126" L x 0.059" W (3.20mm x 1.50mm)
- Height - Seated (Max):
- 0.035" (0.90mm)
VMK3-9005-32K7680000 FAQ
1.How can I place an order for VMK3-9005-32K7680000 through Aetrix?
Please submit a Request for Quotation (RFQ) for VMK3-9005-32K7680000 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for VMK3-9005-32K7680000 reliable?
The price and inventory of VMK3-9005-32K7680000 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VMK3-9005-32K7680000 is usually 5 days.
3.What payment methods are accepted for VMK3-9005-32K7680000?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VMK3-9005-32K7680000 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VMK3-9005-32K7680000?
VMK3-9005-32K7680000 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VMK3-9005-32K7680000 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for VMK3-9005-32K7680000?
For technical support, including VMK3-9005-32K7680000 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VMK3-9005-32K7680000 requirements.
6.How does Aetrix verify that VMK3-9005-32K7680000 is sourced from the original manufacturer or authorized distributors?
All VMK3-9005-32K7680000 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that VMK3-9005-32K7680000 meets industry standards.
7.What is the process for return or replacement of VMK3-9005-32K7680000?
All VMK3-9005-32K7680000 units undergo pre-shipment inspection (PSI). If there is an issue with VMK3-9005-32K7680000, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The VMK3-9005-32K7680000 part is unused and in its original packaging.
Return procedure for VMK3-9005-32K7680000:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VMK3-9005-32K7680000 Tags
-
CFS-20632768DZBB
Citizen Finedevice Co Ltd
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CFS-20632768DZFB
Citizen Finedevice Co Ltd
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XRCGB32M000F2P01R0
Murata Electronics
-
ECS-250-18-5PX-F-TR
ECS Inc.
-
J49SMH-A-G-G-K-4M0
Jauch Quartz
-
FC4SDCBMF8.0-T1
Fox Electronics
-
ABLS-8.000MHZ-B2-T
Abracon LLC
-
ECS-240-20-5PX-TR
ECS Inc.
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ABLS-8.000MHZ-B4-T
Abracon LLC
-
ABLS-13.52127MHZ-10-J-4Q-T
Abracon LLC
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ATS080BSM-1E
CTS-Frequency Controls
-
ECS-184-18-5PX-TR
ECS Inc.
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