NX3225GA-25MHZ-STD-CRG-2 - 25MHz 8pF SMD Crystal | NDK
MPN: NX3225GA-25MHZ-STD-CRG-2 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.13 | $0.13 |
| 10 | $0.12 | $1.20 |
| 100 | $0.1 | $10.00 |
| 500 | $0.08 | $40.00 |
| 1,000 | $0.07 | $70.00 |
Drop-in alternatives for NX3225GA-25MHZ-STD-CRG-2 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
NX3225GA-25.000M-STD-CRG-2
β Drop-Inβ In Stock
$0.19 / Unit
View Datasheet βSTDCRG2-25M
β Drop-Inπ Reference alternative (not in catalog)
NX3225GA-25MHZ-STD-CRG-2 Maximum Ratings & Electrical Characteristics
| Nominal Frequency | 25 MHz |
| Frequency Tolerance | +/-20 ppm (at 25 C) |
| Frequency Stability | +/-30 ppm (over operating temperature range) |
| Load Capacitance | 8 pF |
| Equivalent Series Resistance (ESR) | 50 ohms max (20 MHz to 50 MHz range) |
| Operating Temperature | -40 C to +85 C |
| Frequency Range (STD-CRG-2 spec) | 9.8 MHz to 50 MHz |
| Package Dimensions | 3.2 x 2.5 x 0.75 mm typ. |
| Package Type | 4-SMD, No Lead (SMD3225-4P) |
| Mounting Type | Surface Mount |
| Terminal Connection | Pins 2 and 4 not connected (may be grounded) |
| Vibration / Shock Resistance | Excellent environmental characteristics (heat and shock resistant) |
| RoHS Status | Compliant |
| Application Category | OA (Office Automation) / AV (Audiovisual) equipment |
NX3225GA-25MHZ-STD-CRG-2 Pin Configuration
| Pin 1 | XTAL1 (Terminal 1) β Crystal resonator terminal - connect to oscillator input and load capacitor |
| Pin 2 | NC (GND optional) β Not connected internally; may be tied to ground for improved stability per NDK datasheet |
| Pin 3 | XTAL2 (Terminal 2) β Crystal resonator terminal - connect to oscillator output and load capacitor |
| Pin 4 | NC (GND optional) β Not connected internally; may be tied to ground for improved stability per NDK datasheet |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
NX3225GA-25MHZ-STD-CRG-2 is suitable for 6 applications: Microcontroller Clock Reference, USB 2.0 Device Clocking, Office Automation (OA) Equipment, AV and Consumer Audiovisual Equipment, Industrial Control Boards, Networking and Communication Hardware.
Microcontroller Clock Reference
The NX3225GA-25MHZ-STD-CRG-2 serves as the primary external reference for MCU oscillator circuits where a stable 25 MHz clock is required. Its 8 pF load capacitance and 50 ohm maximum ESR provide high negative-resistance margin with standard MCU Pierce oscillators, ensuring reliable start-up from -40 C to +85 C. Placed within a few millimeters of the OSC_IN/OSC_OUT pins with 12-15 pF load capacitors (typical for 8 pF CL and 1-2 pF stray), the crystal's plus or minus 20 ppm tolerance keeps UART, CAN, and USB timing within specification. Because it is a passive component it consumes no supply current, making it superior to an active oscillator for battery-powered embedded designs where every microamp matters.
Recommended
USB 2.0 Device Clocking
USB 2.0 high-speed PHYs commonly use a 25 MHz reference crystal, and the NX3225GA-25MHZ-STD-CRG-2 fits this role directly. The plus or minus 20 ppm initial tolerance meets USB data-rate clock accuracy requirements when paired with the PHY's internal PLL, and the plus or minus 30 ppm stability over -40 C to +85 C keeps drift within budget across industrial ambient conditions. The compact 3.2 x 2.5 x 0.75 mm footprint suits space-constrained dongles, hubs, and embedded USB ports. Layout-wise, keep the crystal traces under 10 mm and ground the NC pads (2 and 4) to reduce radiated harmonics at 480 MHz multiples, a recommendation aligned with the NDK datasheet's grounding guidance.
Recommended
Office Automation (OA) Equipment
NDK explicitly targets the NX3225GA series at OA equipment such as printers, scanners, copiers, and multifunction peripherals. These products need multiple stable clocks (main CPU, network PHY, image processing) at minimum cost, and the NX3225GA-25MHZ-STD-CRG-2 delivers 25 MHz at roughly $0.13 per unit as of 2026-09-14. Its excellent heat resistance suits the warm internal environment of laser printers, and its shock resistance survives shipping and paper-jam mechanical stress. The -40 C to +85 C range and RoHS compliance simplify global product qualification. In these designs the crystal typically clocks the main MCU or network controller with 8 pF matched load capacitors on a two-layer board.
Recommended
AV and Consumer Audiovisual Equipment
The NX3225GA datasheet names AV (audiovisual) applications as a primary market for the series. Set-top boxes, TV peripherals, cameras, and digital audio devices use 25 MHz crystals for SoC and USB/Ethernet subsystems. The NX3225GA-25MHZ-STD-CRG-2's compact 3.2 x 2.5 mm outline and 0.75 mm thin profile fit slim consumer enclosures, while its stable start-up ensures immediate operation after power-on, which matters for user-facing devices. With a load capacitance rating of 8 pF and maximum ESR of 50 ohms, it oscillates reliably with low-cost ceramic load capacitors. The RoHS-compliant construction supports consumer environmental regulations across EU and Asian markets.
Recommended
Industrial Control Boards
Industrial control and automation boards require timing components rated across the full -40 C to +85 C industrial temperature span, which the NX3225GA-25MHZ-STD-CRG-2 provides with plus or minus 30 ppm stability. PLC I/O modules, motor-control boards, and sensor interfaces use the 25 MHz reference for MCUs and RS-485/CAN transceivers where bit-timing accuracy depends on the crystal tolerance. The 20 ppm tolerance limits baud-rate error to well under 1 percent, satisfying asynchronous-serial requirements. NDK's heat, vibration, and shock resistance noted for the NX3225GA construction addresses the mechanical environment of factory-floor equipment. Use conservative negative-resistance design margin (at least 5x ESR) for reliable cold-start.
Recommended
Networking and Communication Hardware
Routers, switches, and embedded networking modules frequently clock Ethernet PHYs from a 25 MHz crystal, and the NX3225GA-25MHZ-STD-CRG-2 provides the required plus or minus 20 ppm accuracy for RMII and MII interfaces. The 50 ohm maximum ESR and 8 pF load rating give robust oscillation margin against PHY oscillator amplifiers, while the 3.2 x 2.5 mm no-lead package supports the dense layouts of multi-port switch boards. Its thin 0.75 mm height also suits SFP modules and stackable network appliances. Good grounding of the NC pads minimizes phase-noise contribution from board-level coupling, preserving PHY jitter budgets for 100BASE-TX and gigabit links.
Recommended
Recommended Products Summary
Engineering reference data for NX3225GA-25MHZ-STD-CRG-2 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | NX3225GA-25.000M-STD-CRG-2 | STDCRG2-25M |
|---|---|---|---|
| Package | 4-SMD No Lead, 3.2 x 2.5 x 0.75 mm | 4-SMD No Lead, 3.2 x 2.5 x 0.75 mm - same | 4-SMD No Lead, 3.2 x 2.5 x 0.75 mm - same |
| Brand | NDK (NIHON DEMPA KOGYO) | NDK | NDK |
| Nominal Frequency | 25 MHz | 25 MHz | 25 MHz |
| Frequency Tolerance | +/-20 ppm | +/-20 ppm | +/-20 ppm |
| Load Capacitance | 8 pF | 8 pF | 8 pF |
| Max ESR | 50 ohms | 50 ohms | 50 ohms |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | [DATA_NEEDED] |
| Approx. Unit Price (qty 1) | $0.13 | $0.1881 (LCSC, as of 2026-09-14) | [DATA_NEEDED] |
Key Differentiators
- Lowest cost per 25 MHz reference at ~$0.13 (vs STDCRG2-25M)
- Thin 0.75 mm profile (vs Larger HC-49 through-hole crystals)
- Industrial temperature range with low cost (vs Consumer-grade 3225 crystals rated only to +70 C or +85 C ambient with narrower tolerance)
Design Notes
Place the NX3225GA-25MHZ-STD-CRG-2 as close as possible to the MCU oscillator pins, keeping each crystal trace under 10 mm with matched lengths. Guard the crystal net with ground pour and keep other signals at least 3x trace-width away. Solder the NC pads (2 and 4) to ground as recommended in the NDK datasheet to improve stability and EMI. Load capacitors should return to a clean, quiet ground with short traces; avoid vias in the crystal loop, which add inductance and reduce oscillation margin.
Verify negative-resistance margin in the oscillator loop: measure or simulate |Rneg| of at least 5x the crystal's 50 ohm maximum ESR (ideally 250 ohms or more) at -40 C to guarantee start-up across temperature and aging. Estimated check: with typical MCU oscillator transconductance, an 8 pF, 50 ohm crystal provides ample margin, but low-drive MCU oscillators with series resistors can be marginal - if a drive-limiting resistor is used, keep it small (e.g., under 1 kohm) and re-verify margin.
Mismatched load capacitors shift the oscillation frequency: with 8 pF rated CL, capacitors sized for a different stray assumption can push effective tolerance toward the +/-20 ppm limit. Use NP0/C0G dielectric capacitors, never X7R, whose capacitance drifts with voltage and temperature. Also note this is a bare crystal, not an oscillator - it cannot drive a clock input directly and requires an inverting amplifier circuit. Confirm the target silicon supports a 25 MHz HSE range before finalizing the BOM.
Compliance Information
RoHS compliant per LCSC and JLCPCB product listings. PartGenie lists REACH and MSL as not specified ('-'). An automotive variant of the NX3225GA series exists (separate NDK catalog), but this STD-CRG-2 OA/AV part is not automotive qualified.
