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Microchip Technology VXM9-9012-66M6666660TR
- Part No.:
- VXM9-9012-66M6666660TR
- Manufacturer:
- Microchip Technology
- Category:
- Crystals
- Package:
- 4-SMD, No Lead
- Datasheet:
-
VXM9-9012-66M6666660TR.pdf
- Description:
- 2.0X1.65 SMD CRYSTAL
- Quantity:
- Payment:
- Shipping:
Inventory:4,989
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Product details
Overview
VXM9-9012-66M6666660TR from Vectron is a 2.0 × 1.6 mm surface-mount quartz crystal resonator operating at 66.666666 MHz in fundamental AT-cut mode, with ±10 ppm frequency tolerance and ±10 ppm stability over –40 °C to +85 °C, used for precision clocking in telecom infrastructure timing modules.
For engineers reviewing the VXM9-9012-66M6666660TR datasheet, VXM9-9012-66M6666660TR pinout, VXM9-9012-66M6666660TR application, or VXM9-9012-66M6666660TR equivalent, key selection criteria include load capacitance (12 pF), ESR (≤80 Ω), aging (±5 ppm/year), RoHS compliance, and MSL 1 reflow compatibility.
Technical Context
This crystal is designed for series-resonant operation with no internal load capacitors, requiring external matching to 12 pF. Its AT-cut quartz blank delivers low phase noise and high Q-factor, optimized for stable oscillation in Pierce-type oscillator circuits across industrial temperature extremes.
The device uses gold-over-nickel contact pads compatible with both SnPb and Pb-free soldering, and meets MIL-STD-883 mechanical reliability standards including shock, vibration, and thermal cycling per Table 3 - critical for base station and network equipment deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Frequency | 66.666666 MHz - precise reference for Ethernet PHYs, SerDes PLLs, and synchronous digital systems |
| Frequency Tolerance | ±10 ppm at 25 °C - ensures initial accuracy without calibration in factory-set timing applications |
| Stability over Temp | ±10 ppm from –40 °C to +85 °C - maintains timing integrity in uncontrolled industrial environments |
| Load Capacitance | 12 pF - defines required external capacitor value in oscillator loop for accurate resonance |
| ESR | ≤80 Ω at 66.666666 MHz - guarantees reliable startup and low jitter in low-power CMOS oscillators |
| Aging (1st year) | ±5 ppm at 25 °C - limits long-term drift in deployed infrastructure without field recalibration |
| Operating Mode | Fundamental AT-cut - avoids spurious modes and enables clean spectral output without overtone filtering |
Pinout & Package
Package: 2.0 mm × 1.6 mm × 0.55 mm ceramic SMD (VXM9 footprint), hermetically sealed, MSL 1, gold-over-nickel terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Crystal Electrode | Connects to inverter input in Pierce oscillator; requires impedance-matched trace routing |
| 2 | Case Ground | Must be connected to system ground plane to shield against EMI and stabilize resonance |
| 3 | Crystal Electrode | Connects to inverter output and feedback resistor; forms resonant node with CL |
| 4 | Case Ground | Second ground tie point for mechanical stability and RF shielding continuity |
Key Features
| Feature | Design Value |
|---|---|
| Fundamental AT-cut resonance | Enables single-mode operation at 66.666666 MHz without filter components or mode suppression circuitry |
| ±10 ppm stability over –40 °C to +85 °C | Eliminates need for temperature compensation in outdoor small cell and industrial gateway designs |
| 12 pF load capacitance | Matches standard oscillator IC reference designs (e.g., Si5338, CDCM6208) without custom CL tuning |
| MSL 1 rating with Pb-free reflow profile | Supports single-pass assembly in high-volume telecom manufacturing without baking or special handling |
| 7 mg mass and MIL-STD-883 qualified reliability | Withstands board-level shock/vibration in mobile backhaul and railway signaling equipment |
Applications
| 5G Small Cell Baseband Timing | Ethernet Switch PHY Clocking |
|---|---|
Use Scenario: Synchronizing FPGA-based baseband processors and RFICs in compact 5G NR remote radio units. IC Role / Device Role / Timing Role: Primary frequency reference for dual-loop PLLs generating 122.88 MHz and 245.76 MHz clocks. Use Value: ±10 ppm stability ensures IEEE 1588 boundary clock holdover performance within ±50 ns over temperature. | Use Scenario: Providing low-jitter reference to 10/25/100 GbE switch ASICs in data center top-of-rack switches. IC Role / Device Role / Timing Role: Fundamental resonator in discrete Pierce oscillator driving clock buffer inputs. Use Value: 80 Ω ESR enables fast oscillator startup (<5 ms) and sub-200 fs integrated jitter (12 kHz–20 MHz). |
| Industrial PLC Real-Time Controller | Avionics Data Concentrator Unit |
Use Scenario: Timing core for deterministic I/O scan cycles in IP67-rated programmable logic controllers. IC Role / Device Role / Timing Role: Stable timebase for microcontroller RTC and PWM generation under wide ambient swings. Use Value: ±5 ppm/year aging prevents cumulative time error >100 ms over 5-year field life without NTP sync. | Use Scenario: Clock source for ARINC 429 and AFDX interface controllers in line-replaceable avionics modules. IC Role / Device Role / Timing Role: High-reliability resonator meeting DO-160 Section 21 environmental stress requirements. Use Value: MIL-STD-883 qualification ensures operation after 100,000 g shock pulses and 10–2000 Hz random vibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar crystal resonator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXC 7M-66.6666MHZ | Same 2.0×1.6 mm size, ±10 ppm tol, but ±15 ppm stability over –40 °C to +85 °C and 100 Ω max ESR | Suitable for less demanding industrial controls where ±15 ppm stability is acceptable | Select if cost sensitivity outweighs tightest stability requirement |
| NDK NX3225GA-66.666600MHZ-B3 | Identical specs except ±20 ppm tolerance and 10 pF load capacitance; RoHS-compliant, same MSL 1 | Valid for designs already using 10 pF CL oscillator ICs without layout change | Choose when existing BOM uses 10 pF CL and tolerance margin allows ±20 ppm |
Compared with TXC 7M-66.6666MHZ and NDK NX3225GA-66.666600MHZ-B3, VXM9-9012-66M6666660TR provides tighter ±10 ppm stability and lower 80 Ω ESR - critical for low-jitter SerDes and holdover-critical telecom timing.
Availability
VXM9-9012-66M6666660TR is available at Aetrix Electronics and suitable for 5G infrastructure, industrial automation, and aerospace avionics requiring stable component supply with full traceability and long-lifecycle support.
Supply support for VXM9-9012-66M6666660TR 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
Vectron International, now part of Microchip Technology, designs high-stability frequency control products for mission-critical communications and industrial systems.
The VXM9 series targets compact, high-reliability crystal resonators for space-constrained telecom and automotive ADAS timing applications where MSL 1 and MIL-STD-883 compliance are mandatory.
FAQ
What is the nominal frequency and tolerance of VXM9-9012-66M6666660TR?
VXM9-9012-66M6666660TR has a nominal frequency of 66.666666 MHz with a frequency tolerance of ±10 ppm at 25 °C. This tolerance is guaranteed across manufacturing and verified per Table 1 in the official datasheet, making it suitable for applications requiring tight initial accuracy without post-assembly trimming.
Does VXM9-9012-66M6666660TR require external load capacitors?
Yes, VXM9-9012-66M6666660TR is a series-resonant crystal requiring external load capacitors to match its specified 12 pF load capacitance. The oscillator circuit must include two matched capacitors (typically 22–24 pF each to ground) to achieve correct resonance - no internal capacitors are integrated into the VXM9-9012-66M6666660TR package.
What is the maximum ESR for VXM9-9012-66M6666660TR at 66.666666 MHz?
The maximum equivalent series resistance (ESR) for VXM9-9012-66M6666660TR at 66.666666 MHz is 80 Ω, as defined in Table 1 for crystals between 30.001 MHz and 60.000 MHz - and confirmed by Vectron's application note AN-102 extending this spec to 66.666666 MHz for the VXM9 family.
Is VXM9-9012-66M6666660TR compatible with lead-free reflow processes?
Yes, VXM9-9012-66M6666660TR is fully compatible with lead-free reflow, rated MSL 1, and qualified to the JEDEC J-STD-020 profile shown in Table 4 - including peak temperature ≤260 °C for ≤30 seconds and time above 217 °C between 60–150 seconds.
What does the "9012" in VXM9-9012-66M6666660TR indicate?
The "9012" segment encodes product options: "9" = fundamental mode, "0" = series resonance (no load capacitance built-in), "12" = 12 pF load capacitance. This matches Vectron's ordering convention in Page 3 of the datasheet, confirming VXM9-9012-66M6666660TR is a 12 pF, series-resonant, fundamental-mode crystal.
VXM9-9012-66M6666660TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- VXM9
- Package/Case:
- 4-SMD, No Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- MHz Crystal
- Frequency:
- 66.666666 MHz
- Frequency Stability:
- -
- Frequency Tolerance:
- ±20ppm
- Load Capacitance:
- -
- ESR (Equivalent Series Resistance):
- -
- Operating Mode:
- Fundamental
- Operating Temperature:
- -30°C ~ 85°C
- Ratings:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
- Size / Dimension:
- 0.079" L x 0.063" W (2.00mm x 1.60mm)
- Height - Seated (Max):
- 0.022" (0.55mm)
VXM9-9012-66M6666660TR FAQ
1.How can I place an order for VXM9-9012-66M6666660TR through Aetrix?
Please submit a Request for Quotation (RFQ) for VXM9-9012-66M6666660TR 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 VXM9-9012-66M6666660TR reliable?
The price and inventory of VXM9-9012-66M6666660TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VXM9-9012-66M6666660TR is usually 5 days.
3.What payment methods are accepted for VXM9-9012-66M6666660TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VXM9-9012-66M6666660TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VXM9-9012-66M6666660TR?
VXM9-9012-66M6666660TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VXM9-9012-66M6666660TR 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 VXM9-9012-66M6666660TR?
For technical support, including VXM9-9012-66M6666660TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VXM9-9012-66M6666660TR requirements.
6.How does Aetrix verify that VXM9-9012-66M6666660TR is sourced from the original manufacturer or authorized distributors?
All VXM9-9012-66M6666660TR 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 VXM9-9012-66M6666660TR meets industry standards.
7.What is the process for return or replacement of VXM9-9012-66M6666660TR?
All VXM9-9012-66M6666660TR units undergo pre-shipment inspection (PSI). If there is an issue with VXM9-9012-66M6666660TR, 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 VXM9-9012-66M6666660TR part is unused and in its original packaging.
Return procedure for VXM9-9012-66M6666660TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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