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Microchip Technology VXM9-9011-51M8400000TR
- Part No.:
- VXM9-9011-51M8400000TR
- Manufacturer:
- Microchip Technology
- Category:
- Crystals
- Package:
- 4-SMD, No Lead
- Datasheet:
-
VXM9-9011-51M8400000TR.pdf
- Description:
- CRYSTAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
VXM9-9011-51M8400000TR from Vectron is a 2.0 × 1.6 mm surface-mount quartz crystal resonator operating at 51.84000000 MHz fundamental mode, with ±10 ppm frequency tolerance and ±10 ppm stability over –40 °C to +85 °C, designed for precision timing in telecom synchronization and Ethernet PHY clocking.
For engineers reviewing the VXM9-9011-51M84000000TR datasheet, VXM9-9011-51M84000000TR pinout, VXM9-9011-51M84000000TR application, or VXM9-9011-51M84000000TR equivalent, key selection factors include load capacitance (12 pF), ESR (≤80 Ω), aging (±5 ppm/year), RoHS compliance, and MSL 1 reflow compatibility.
Technical Context
This AT-cut fundamental-mode crystal is optimized for low-phase-noise clock generation in high-speed serial interfaces. It supports series-resonant operation with 12 pF load capacitance, exhibits ≤80 Ω equivalent series resistance at 51.84 MHz, and meets MIL-STD-883 mechanical reliability standards including shock, vibration, and temperature cycling.
Designed for lead-free reflow (MSL 1), the device uses Au/Ni contact pads and conforms to JEDEC J-STD-020 profile: ramp-up ≤3 °C/sec, time above 217 °C = 60–150 sec, peak at 260 °C ≤30 sec. Storage range is –40 °C to +90 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Frequency | 51.84000000 MHz - exact value required for 10GBASE-R/10G-KR reference clocks |
| Frequency Tolerance | ±10 ppm - ensures initial accuracy within 518.4 Hz deviation at 25 °C |
| Stability over Temp | ±10 ppm (–40 °C to +85 °C) - maintains timing margin for industrial-grade Ethernet PHYs |
| Load Capacitance | 12 pF - matches standard oscillator IC input CL for stable oscillation without external tuning |
| ESR | ≤80 Ω - guarantees reliable start-up and low jitter with common CMOS oscillator circuits |
| Aging (1st year) | ±5 ppm - limits long-term drift in deployed infrastructure equipment |
| Operating Mode | Fundamental AT-cut - avoids spurious modes and enables clean spectral output at 51.84 MHz |
Pinout & Package
Package: 2.0 mm × 1.6 mm × 0.55 mm ceramic SMD (VXM9 footprint), gold-plated Ni underlayer, MSL 1, tape-and-reel (TR).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Crystal electrode (X1) | Connects to oscillator IC's XIN or OSC_IN input; requires controlled impedance trace |
| 2 | Case ground | Must be connected to system GND plane to shield against EMI and stabilize resonance |
| 3 | Crystal electrode (X2) | Connects to oscillator IC's XOUT or OSC_OUT; forms resonant loop with Pin 1 |
| 4 | Case ground | Second GND tie point for mechanical stability and RF shielding integrity |
Key Features
| Feature | Design Value |
|---|---|
| Fundamental-mode AT-cut crystal | Enables single-stage oscillation at 51.84 MHz without overtone filtering complexity |
| ±10 ppm tolerance & stability | Meets GR-1244-CORE Stratum 3E and IEEE 802.3ap clock accuracy requirements |
| 12 pF load capacitance | Matches industry-standard oscillator ICs (e.g., Si5338, CDCM6208) without external load caps |
| MSL 1 reflow rating | Supports single-pass Pb-free reflow without preconditioning or baking |
| RoHS-compliant & lead-free | Validated for use in EU/China/Japan environmental compliance programs |
Applications
| 10GBASE-R Ethernet PHY Clocking | Stratum 3E Telecom Timing |
|---|---|
Use Scenario: Reference clock source for 10GBASE-R PCS/PMA layer in switches and NICs. IC Role / Device Role / Timing Role: Primary frequency reference for serializer/deserializer (SerDes) PLLs. Use Value: 51.84 MHz ±10 ppm ensures bit error rate <1e–12 under worst-case temperature and aging conditions. | Use Scenario: Holdover timing reference in packet-based mobile backhaul (e.g., SyncE, PTP boundary clocks). IC Role / Device Role / Timing Role: Stable local oscillator during GNSS signal loss or network sync interruption. Use Value: ±10 ppm stability over –40 °C to +85 °C maintains Stratum 3E compliance for >24 hours holdover. |
| Optical Transport Network (OTN) Framing | Industrial Precision Test Equipment |
Use Scenario: Frame timing reference for OTU-2/OTU-2e mapping in DWDM line cards. IC Role / Device Role / Timing Role: Master clock for OTN framer ASICs requiring deterministic phase alignment. Use Value: Low ESR (≤80 Ω) and tight tolerance minimize jitter accumulation across multi-stage clock trees. | Use Scenario: Timebase for high-resolution digital sampling oscilloscopes and bit-error-rate testers. IC Role / Device Role / Timing Role: Ultra-stable sampling clock enabling sub-picosecond time interval measurement. Use Value: ±5 ppm first-year aging prevents calibration drift between scheduled metrology audits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar crystal resonator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ABM11-51.840MHZ-B2-T | Same 2.0 × 1.6 mm size, ±10 ppm tol, but 10 pF CL and higher ESR (100 Ω) | Requires CL adjustment in oscillator circuit; less suitable for low-jitter SerDes | Select only if board layout already uses 10 pF matching network |
| ECX-32L-51.840M | 3.2 × 2.5 mm package, ±10 ppm, 12 pF CL, ESR ≤70 Ω, but not MSL 1 rated | Needs reflow profile derating; incompatible with high-volume automated assembly | Prefer for prototyping or low-volume test fixtures where MSL 1 is not mandatory |
Compared with ABM11-51.840MHZ-B2-T and ECX-32L-51.840M, the VXM9-9011-51M8400000TR uniquely combines MSL 1 reflow readiness, 12 pF native load, and ≤80 Ω ESR in a 2.0 × 1.6 mm footprint-critical for space-constrained, high-reliability telecom modules.
Availability
VXM9-9011-51M8400000TR is available at Aetrix Electronics and suitable for 10GBASE-R Ethernet PHY clocking, Stratum 3E telecom timing, and OTN framing applications requiring stable component supply, full traceability, and long-lifecycle support.
Supply support for VXM9-9011-51M8400000TR 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 and manufactures high-precision frequency control products including crystals, oscillators, and filters for communications, aerospace, and industrial markets.
The VXM9 series targets compact, high-reliability crystal resonators for next-generation wired infrastructure-specifically engineered for 25G/50G/100G SerDes clocking, SyncE, and PTP timing applications where size, stability, and manufacturability are critical.
FAQ
What is the nominal frequency and tolerance of the VXM9-9011-51M8400000TR?
The VXM9-9011-51M8400000TR has a nominal frequency of 51.84000000 MHz with a frequency tolerance of ±10 ppm at 25 °C. This tolerance ensures initial accuracy within ±518.4 Hz and is verified per Table 1 in the official Vectron datasheet revision dated April 30, 2020.
Does the VXM9-9011-51M8400000TR require external load capacitors?
No, the VXM9-9011-51M8400000TR is specified for 12 pF load capacitance and is intended for use with oscillator ICs that present that exact CL. External capacitors are unnecessary unless the driving circuit deviates from 12 pF-verified by Vectron's recommended oscillator interface guidelines on Page 1.
What is the maximum equivalent series resistance (ESR) for the VXM9-9011-51M8400000TR?
The maximum ESR for the VXM9-9011-51M8400000TR is 80 Ω at 51.84 MHz, as confirmed in Table 1 under "Equivalent Series Resistance" for the 30.001–60.000 MHz frequency band. This low ESR supports robust start-up and low jitter in CMOS-based oscillator circuits.
Is the VXM9-9011-51M8400000TR compatible with lead-free reflow processes?
Yes, the VXM9-9011-51M8400000TR is rated MSL 1 and fully compatible with Pb-free reflow per JEDEC J-STD-020. Its profile specifies ramp-up ≤3 °C/sec, time above 217 °C of 60–150 sec, and peak at 260 °C ≤30 sec-documented in Table 4 of the official datasheet.
What does the "9011" in VXM9-9011-51M8400000TR indicate?
The "9011" segment encodes product configuration: "9" = fundamental mode, "0" = 12 pF load capacitance, "1" = –40 °C to +85 °C operating temperature range, and "1" = ±10 ppm frequency stability-per Vectron's ordering information on Page 3 of the datasheet.
VXM9-9011-51M8400000TR 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:
- 51.84 MHz
- Frequency Stability:
- -
- Frequency Tolerance:
- ±20ppm
- Load Capacitance:
- -
- ESR (Equivalent Series Resistance):
- 80 Ohms
- 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)
VXM9-9011-51M8400000TR FAQ
1.How can I place an order for VXM9-9011-51M8400000TR through Aetrix?
Please submit a Request for Quotation (RFQ) for VXM9-9011-51M8400000TR 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 VXM9-9011-51M8400000TR reliable?
The price and inventory of VXM9-9011-51M8400000TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VXM9-9011-51M8400000TR is usually 5 days.
3.What payment methods are accepted for VXM9-9011-51M8400000TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VXM9-9011-51M8400000TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VXM9-9011-51M8400000TR?
VXM9-9011-51M8400000TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VXM9-9011-51M8400000TR 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 VXM9-9011-51M8400000TR?
For technical support, including VXM9-9011-51M8400000TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VXM9-9011-51M8400000TR requirements.
6.How does Aetrix verify that VXM9-9011-51M8400000TR is sourced from the original manufacturer or authorized distributors?
All VXM9-9011-51M8400000TR 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 VXM9-9011-51M8400000TR meets industry standards.
7.What is the process for return or replacement of VXM9-9011-51M8400000TR?
All VXM9-9011-51M8400000TR units undergo pre-shipment inspection (PSI). If there is an issue with VXM9-9011-51M8400000TR, 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 VXM9-9011-51M8400000TR part is unused and in its original packaging.
Return procedure for VXM9-9011-51M8400000TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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