onsemi MC10H106FNR2

Overview

MC10H106FNR2 from ON Semiconductor is a triple 4−3−3-input ECL NOR gate in PLLC-20 package, delivering 1.0 ns typical propagation delay, −5.2 V VEE supply operation, and MECL 10K pinout compatibility for high-speed logic interfacing in telecom line cards and test equipment.

For engineers reviewing the MC10H106FNR2 datasheet, pinout, applications, or equivalent options, this page provides verified electrical specs, terminal roles, thermal-rated AC performance, and direct alternatives for ECL logic replacement in legacy 10K-system upgrades.

Technical Context

The MC10H106FNR2 implements three independent NOR gates with asymmetric input counts (four inputs on A-group, three each on B- and C-groups), all operating from a single −5.2 V VEE supply with VCC1 and VCC2 referenced to ground. It maintains strict MECL 10K voltage thresholds while improving noise margin to 150 mV across 0°C to +75°C.

Its propagation delay (0.5–1.55 ns) and rise/fall times (0.5–1.9 ns) are characterized with 50 Ω termination to −2.0 V, requiring transverse airflow >500 lfpm for guaranteed AC specs. The device draws ≤23 mA supply current and supports DC-coupled interconnects without level-shifting.

Key Specifications

Pinout & Package

MC10H106FNR2 uses the 20-lead Plastic Leaded Chip Carrier (PLLC-20, Case 775), surface-mount package with gull-wing leads, 0.050" pitch, and exposed thermal pad. Dimensions: 0.385" × 0.385" × 0.032" (9.78 mm × 9.78 mm × 0.81 mm).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ECL NOR gate applications.

Compared with MC100H106FN and SN64EL11D, the MC10H106FNR2 uniquely balances legacy MECL 10K compatibility, −5.2 V operation, and 1.0 ns performance-making it the only option for cost-sensitive upgrades of deployed 10K-based systems without layout changes.

Availability

MC10H106FNR2 is available at Aetrix Electronics and suitable for telecom infrastructure, automated test equipment, radar signal processing, and high-speed instrumentation requiring stable component supply and long-term obsolescence management.

Supply support for MC10H106FNR2 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

ON Semiconductor (now part of onsemi) is a global semiconductor supplier specializing in power management, analog, sensor, and logic solutions for automotive, industrial, and communications markets.

The MC10H106FNR2 belongs to the MECL 10H family, designed specifically to replace aging MECL 10K logic with improved speed and noise immunity while preserving pinout and system integration.

FAQ

What is the recommended termination for MC10H106FNR2 outputs to meet datasheet AC specifications?

The MC10H106FNR2 outputs must be terminated with a 50 Ω resistor to −2.0 V to achieve guaranteed propagation delay and rise/fall times per Table 3. This termination matches the characteristic impedance of standard ECL transmission lines and ensures clean waveform integrity. Using alternative terminations (e.g., open-drain or unterminated) will degrade timing performance and increase jitter. Always verify termination layout symmetry across all three output groups in the MC10H106FNR2.

Does MC10H106FNR2 support operation at VEE = −5.0 V instead of the specified −5.2 V?

The MC10H106FNR2 is characterized and guaranteed only at VEE = −5.2 V ±5% (−4.94 V to −5.46 V). Operation at exactly −5.0 V falls within this range and is acceptable, but performance parameters-including VOH, VOL, and tpd-must be interpolated from the 25°C column of Tables 2 and 3. Do not operate outside the −4.94 V to −5.46 V window, as VIH/VIL thresholds and noise margin degrade unpredictably below −4.94 V.

Can MC10H106FNR2 be used in place of MC10106 in an existing design?

Yes, the MC10H106FNR2 is a functional and pinout duplication of the standard MECL 10K MC10106, with identical pin assignments (VCC1=1, VCC2=16, VEE=8) and compatible voltage thresholds. Its 100% faster propagation delay does not affect logic function, and no PCB changes are needed. However, confirm that the −5.2 V supply meets ripple and stability requirements specified for the MC10H106FNR2, as older 10K designs may use looser tolerances.

What is the maximum junction temperature for continuous operation of MC10H106FNR2?

The MC10H106FNR2 has no explicit TJ(max) rating in its datasheet, but its maximum operating ambient temperature is +75°C with ≥500 lfpm airflow. Under those conditions and 23 mA supply current, calculated junction temperature remains below 110°C using the PLLC-20 package's θJA of 50°C/W. For sealed enclosures or lower airflow, derate ambient temperature accordingly-do not exceed +65°C ambient without thermal modeling confirming TJ < 125°C.

Is MC10H106FNR2 RoHS compliant and lead-free?

Yes, the "R2" suffix in MC10H106FNR2 indicates tape-and-reel packaging, and the part is available in Pb-free version as MC10H106FNR2G (per ordering table). The base MC10H106FNR2 is not inherently lead-free; always specify the "G" suffix for RoHS-compliant shipments. ON Semiconductor confirms full compliance with EU RoHS Directive 2011/65/EU and JEDEC J-STD-609 for the G-suffix variant.