7M-32.000MEEC-T Equivalent & Substitute Parts

Part Overview

The 7M-32.000MEEC-T is a 32 MHz fundamental mode quartz crystal manufactured by TXC CORPORATION. This surface mount device is specified for 9pF load capacitance with 50 Ohms equivalent series resistance, packaged in a 4-SMD, No Lead configuration with 3.2mm x 2.5mm dimensions. The part maintains ±10ppm frequency stability across the -20°C to 70°C operating temperature range and is currently in active production status with 1140 pieces available in inventory. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and packaging configurations are required for design flexibility, supply chain continuity, or inventory optimization.

Substiute Parts

7M-32.000MEEC-T

TXC CORPORATIONIn Stock: 11767M-32.000MEEC-T Datasheet

Current PartRFQ

RH100-32.000-9-F-1010-TR

Raltron ElectronicsIn Stock: 4646RH100-32.000-9-F-1010-TR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7M-32.000MEEC-T is determined by strict equivalence across the following critical parameters:

Frequency Specification: 32 MHz exact match required. Frequency tolerance and stability must both be ±10ppm.

Load Capacitance: 9pF exact match required. This parameter directly affects circuit resonance and cannot be varied.

Equivalent Series Resistance (ESR): 50 Ohms exact match required. ESR determines circuit Q-factor and startup characteristics.

Operating Mode: Fundamental mode operation required. Overtone crystals are not substitutable.

Operating Temperature Range: Minimum -20°C to 70°C coverage required. Parts with narrower temperature ranges do not qualify.

Mechanical Compatibility: 4-SMD, No Lead package with 3.20mm x 2.50mm footprint and 0.80mm maximum seated height required. PCB layout and reflow profile compatibility depend on these exact dimensions.

Packaging Format: Tape & Reel (TR) format maintained for automated assembly compatibility.

The RH100-32.000-9-F-1010-TR manufactured by Raltron Electronics meets all substitution criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the 7M-32.000MEEC-T and RH100-32.000-9-F-1010-TR are active production components with identical electrical and mechanical specifications. Selection between these parts is based on availability, supply chain considerations, and compliance certifications.

The RH100-32.000-9-F-1010-TR carries RoHS3 compliance certification and REACH Unaffected status, with Moisture Sensitivity Level (MSL) rating of 1 (Unlimited). The RH100 series demonstrates higher current inventory availability at 4558 pieces compared to 1140 pieces for the 7M series.

Both parts are classified under ECCN EAR99 and HTSUS 8541.60.0060, indicating equivalent export control and tariff treatment.

Frequently Asked Questions (FAQ)

Q: Can the RH100-32.000-9-F-1010-TR be used as a direct replacement for the 7M-32.000MEEC-T in existing designs?

A: Yes. The RH100-32.000-9-F-1010-TR is a parametric equivalent with identical frequency, load capacitance, ESR, operating temperature range, and mechanical dimensions. No circuit modifications or PCB layout changes are required.

Q: Are there any differences in the 4-SMD, No Lead package footprint between these two parts?

A: No. Both parts use identical 3.20mm x 2.50mm footprints with 0.80mm maximum seated height. Reflow profiles and pick-and-place machine settings remain unchanged.

Q: What is the significance of the 9pF load capacitance specification?

A: Load capacitance directly determines the crystal's resonant frequency in the circuit. The 9pF specification must be matched exactly in the oscillator circuit design. Substituting a crystal with different load capacitance will shift the operating frequency outside specification.

Q: Does the ±10ppm frequency stability apply across the entire -20°C to 70°C temperature range?

A: Yes. Both parts maintain ±10ppm frequency stability across the full -20°C to 70°C operating temperature range. This specification applies to frequency drift over temperature, not initial tolerance.

Q: What does ESR (Equivalent Series Resistance) of 50 Ohms indicate?

A: ESR represents the internal resistance of the crystal element and affects circuit startup time and power consumption. The 50 Ohm specification must be matched for proper oscillator circuit operation and to ensure reliable startup across the operating temperature range.

Q: Are both parts suitable for automated assembly processes?

A: Yes. Both parts are supplied in Tape & Reel (TR) packaging format, compatible with standard surface mount assembly equipment and reflow soldering processes.

Q: What is the difference between Frequency Stability and Frequency Tolerance?

A: Frequency Tolerance (±10ppm) specifies the initial accuracy at 25°C. Frequency Stability (±10ppm) specifies the maximum frequency variation across the -20°C to 70°C operating temperature range. Both specifications are identical for these parts.