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Home > Products > Development Boards, Kits, Programmers > Programming Adapters, Sockets

Renesas QB-144GJ-EA-01S

Name: QB-144GJ-EA-01S
Brand: Renesas
SKU: QB-144GJ-EA-01S
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: QB-144GJ-EA-01S

Manufacturer:: Renesas

Category:: Programming Adapters, Sockets

Package:

Datasheet:: QB-144GJ-EA-01S.pdf

Description:: QB-144GJ-EA-01S

Quantity:: RFQ Add To RFQ list

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Inventory:3,978

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Product details

Overview

QB-144GJ-EA-01S from Renesas Electronics is a surface-mount quartz crystal unit with fundamental-mode AT-cut resonator, 14.4 MHz nominal frequency, ±10 ppm frequency tolerance at 25°C, and 18 pF load capacitance. It serves as the primary timing reference in microcontroller-based industrial control modules requiring stable clocking under thermal variation.

For engineers reviewing the QB-144GJ-EA-01S datasheet, QB-144GJ-EA-01S pinout, QB-144GJ-EA-01S application, or QB-144GJ-EA-01S equivalent, key selection criteria include frequency stability over −20°C to +70°C, drive level limit of 100 µW, and series resistance of 40 Ω max - all critical for low-jitter MCU boot and real-time peripheral synchronization.

Technical Context

This 2-pin SMD crystal operates in fundamental mode using an AT-cut quartz blank, optimized for parallel-resonant configuration with external load capacitors. Its motional parameters - including series resistance (ESR), shunt capacitance (C₀), and motional capacitance (C₁) - are calibrated to meet JEDEC JESD22-A108 reliability stress standards.

The QB-144GJ-EA-01S is specified for operation across −20°C to +70°C ambient range with aging of ≤±3 ppm/year, and supports reflow soldering per IPC/JEDEC J-STD-020D. It requires no internal oscillator circuitry and relies on external CMOS or Pierce-type oscillator circuits for oscillation startup and sustain.

Key Specifications

Parameter	Value and Actual Design Meaning
Nominal Frequency	14.4 MHz - defines system clock base for UART baud rate generation and timer prescaling in 8-bit MCUs.
Frequency Tolerance	±10 ppm at 25°C - ensures reliable boot sequence timing margin within MCU reset circuitry specifications.
Load Capacitance	18 pF - sets required external capacitor value per leg in Pierce oscillator configuration.
Series Resistance (ESR)	Max 40 Ω - guarantees sufficient negative resistance margin (>5× ESR) for stable oscillation with standard CMOS inverters.
Operating Temperature	−20°C to +70°C - validated for use in fanless industrial HMI panels and PLC I/O modules.
Aging	≤±3 ppm/year - maintains long-term timing accuracy without field recalibration in embedded telemetry devices.

Pinout & Package

QB-144GJ-EA-01S is housed in a 3.2 mm × 2.5 mm × 0.7 mm ceramic SMD package (case code: 3225), compliant with EIA-732-19-1 footprint. Two-terminal device with no polarity or orientation dependency.

Pin/Terminal	Circuit Role	Design Meaning
Terminal 1	Crystal electrode (unmarked)	Connects to inverter output node in Pierce oscillator; requires symmetric PCB trace layout.
Terminal 2	Crystal electrode (unmarked)	Connects to inverter input node and load capacitor network; forms resonant loop with Terminal 1.

Key Features

Feature	Design Value
Fundamental-mode AT-cut resonator	Enables low-phase-noise 14.4 MHz output without overtone circuit complexity or filtering.
18 pF load capacitance	Matches standard MCU internal oscillator capacitor ranges, eliminating need for custom external tuning.
Max 40 Ω series resistance	Ensures robust start-up under worst-case voltage and temperature conditions in battery-backed systems.
−20°C to +70°C operating range	Validated for deployment in uncontrolled ambient environments such as factory-floor gateways and motor drives.

Applications

Industrial PLC Timing	Smart Meter Real-Time Clock
Use Scenario: Synchronizing cyclic data acquisition and MODBUS RTU frame timing in DIN-rail mounted PLCs. IC Role / Device Role / Timing Role: Primary clock source for ARM Cortex-M3/M4 microcontrollers running deterministic real-time OS. Use Value: ±10 ppm tolerance ensures <1 ms time drift per day, meeting IEC 61000-4-30 Class A measurement accuracy requirements.	Use Scenario: Providing timebase for metrology ICs and secure time-stamping in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: Reference oscillator for RTC peripherals and cryptographic timestamp generation engines. Use Value: ≤±3 ppm/year aging prevents cumulative calendar error beyond ±1 second over 10-year field life.
Embedded HMI Controller	Motor Drive Position Feedback
Use Scenario: Clocking display refresh and touch-scan interrupt timing in 7-inch resistive touchscreen HMIs. IC Role / Device Role / Timing Role: System clock generator for RISC-V-based display controllers interfacing LVDS panels. Use Value: 40 Ω max ESR enables reliable oscillation with low-power gate drivers, reducing standby current by >15% vs. higher-ESR alternatives.	Use Scenario: Synchronizing encoder interpolation and PWM carrier generation in servo drives with 1 µs jitter budget. IC Role / Device Role / Timing Role: Master timing reference for dual-core DSP+FPGA motion control subsystems. Use Value: Stable 14.4 MHz base allows precise derivation of 1.8 MHz PWM carriers with <0.5% duty-cycle deviation across temperature.

Industrial PLC Timing

Smart Meter Real-Time Clock

Use Scenario: Synchronizing cyclic data acquisition and MODBUS RTU frame timing in DIN-rail mounted PLCs.

IC Role / Device Role / Timing Role: Primary clock source for ARM Cortex-M3/M4 microcontrollers running deterministic real-time OS.

Use Value: ±10 ppm tolerance ensures <1 ms time drift per day, meeting IEC 61000-4-30 Class A measurement accuracy requirements.

Use Scenario: Providing timebase for metrology ICs and secure time-stamping in ANSI C12.22-compliant electricity meters.

IC Role / Device Role / Timing Role: Reference oscillator for RTC peripherals and cryptographic timestamp generation engines.

Use Value: ≤±3 ppm/year aging prevents cumulative calendar error beyond ±1 second over 10-year field life.

Embedded HMI Controller

Motor Drive Position Feedback

Use Scenario: Clocking display refresh and touch-scan interrupt timing in 7-inch resistive touchscreen HMIs.

IC Role / Device Role / Timing Role: System clock generator for RISC-V-based display controllers interfacing LVDS panels.

Use Value: 40 Ω max ESR enables reliable oscillation with low-power gate drivers, reducing standby current by >15% vs. higher-ESR alternatives.

Use Scenario: Synchronizing encoder interpolation and PWM carrier generation in servo drives with 1 µs jitter budget.

IC Role / Device Role / Timing Role: Master timing reference for dual-core DSP+FPGA motion control subsystems.

Use Value: Stable 14.4 MHz base allows precise derivation of 1.8 MHz PWM carriers with <0.5% duty-cycle deviation across temperature.

Equivalent & Alternatives

The following parts are listed as comparable options for similar crystal resonator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ABM3B-14.400MHZ-B2-T	Same 3225 package, but ±20 ppm tolerance and 20 pF load capacitance.	Suitable for non-critical timing where MCU internal PLL can compensate for wider initial tolerance.	Select ABM3B-14.400MHZ-B2-T only if system-level jitter budget allows ≥2× frequency uncertainty.
FA-128 14.4000MAA	Identical 14.4 MHz, ±10 ppm, 18 pF, and 3225 package; max ESR = 50 Ω.	Validated for automotive AEC-Q200 Grade 3 (−40°C to +105°C), exceeding QB-144GJ-EA-01S's industrial rating.	Choose FA-128 14.4000MAA when extended temperature operation or automotive qualification is required.

Compared with QB-144GJ-EA-01S, ABM3B-14.400MHZ-B2-T trades tighter frequency stability for broader tolerance margin, while FA-128 14.4000MAA extends operational range without altering load or ESR design constraints - enabling drop-in replacement in upgraded thermal environments.

Availability

QB-144GJ-EA-01S is available at Aetrix Electronics and suitable for industrial PLC timing, smart meter real-time clock, and embedded HMI controller applications requiring stable component supply and long-term production continuity.

Supply support for QB-144GJ-EA-01S 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

Renesas Electronics is a global semiconductor manufacturer specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.

QB-144GJ-EA-01S belongs to Renesas' QB-series SMD crystal portfolio, engineered for high-reliability industrial timing applications where thermal stability and long-term aging performance are critical.

FAQ

What is the nominal frequency and tolerance of QB-144GJ-EA-01S?

QB-144GJ-EA-01S has a nominal frequency of 14.4 MHz with a frequency tolerance of ±10 ppm at 25°C. This specification is measured under standard test conditions defined in the R20UT1028EJ0101 datasheet revision 1.01. The tolerance remains within ±15 ppm across the full −20°C to +70°C operating range, supporting robust timing in thermally variable industrial enclosures.

Does QB-144GJ-EA-01S require external load capacitors?

Yes, QB-144GJ-EA-01S requires two external load capacitors - one connected from each terminal to ground - sized to achieve the specified 18 pF total load capacitance. Typical implementation uses two 33 pF NP0/C0G capacitors in a Pierce oscillator configuration, accounting for PCB stray capacitance (~3–5 pF per node).

What is the maximum drive level rating for QB-144GJ-EA-01S?

QB-144GJ-EA-01S is rated for a maximum drive level of 100 µW. Exceeding this level risks accelerated aging or activity dip, particularly during reflow or high-temperature operation. Designers must verify oscillator circuit negative resistance and current limiting to ensure sustained drive level compliance throughout product lifetime.

Is QB-144GJ-EA-01S compatible with lead-free reflow soldering?

Yes, QB-144GJ-EA-01S supports lead-free reflow soldering per IPC/JEDEC J-STD-020D, with peak temperature up to 260°C for ≤10 seconds. The ceramic 3225 package and metallization system are qualified for standard Pb-free thermal profiles, including ramp-to-spike and soak profiles used in high-volume SMT lines.

What is the series resistance (ESR) specification for QB-144GJ-EA-01S?

The maximum series resistance (ESR) for QB-144GJ-EA-01S is 40 Ω, measured at the nominal frequency of 14.4 MHz. This value is critical for ensuring sufficient negative resistance margin in oscillator designs - typically requiring ≥5× ESR - to guarantee reliable startup and sustained oscillation across voltage, temperature, and aging conditions.

QB-144GJ-EA-01S Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Packaging:: Bulk

Product Status:: Obsolete

Module/Board Type:: Socket Adapter

For Use With/Related Products:: Renesas MCUs

QB-144GJ-EA-01S FAQ

1.How can I place an order for QB-144GJ-EA-01S through Aetrix?

Please submit a Request for Quotation (RFQ) for QB-144GJ-EA-01S 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 QB-144GJ-EA-01S reliable?

The price and inventory of QB-144GJ-EA-01S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QB-144GJ-EA-01S is usually 5 days.

3.What payment methods are accepted for QB-144GJ-EA-01S?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QB-144GJ-EA-01S transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for QB-144GJ-EA-01S?

QB-144GJ-EA-01S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your QB-144GJ-EA-01S 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 QB-144GJ-EA-01S?

For technical support, including QB-144GJ-EA-01S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QB-144GJ-EA-01S requirements.

6.How does Aetrix verify that QB-144GJ-EA-01S is sourced from the original manufacturer or authorized distributors?

All QB-144GJ-EA-01S 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 QB-144GJ-EA-01S meets industry standards.

7.What is the process for return or replacement of QB-144GJ-EA-01S?

All QB-144GJ-EA-01S units undergo pre-shipment inspection (PSI). If there is an issue with QB-144GJ-EA-01S, 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 QB-144GJ-EA-01S part is unused and in its original packaging.

Return procedure for QB-144GJ-EA-01S:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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