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7M-25.000MEEC-T Equivalent & Substitute Parts
Part Overview
The 7M-25.000MEEC-T is a 25 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, housed in a 4-SMD, No Lead package measuring 3.20mm x 2.50mm. The part is currently in active production status with 1131 pieces available in inventory. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, supply chain continuity, or inventory optimization.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Frequency | 25 MHz |
| Frequency Stability | ±10ppm |
| Frequency Tolerance | ±10ppm |
| Load Capacitance | 9pF |
| ESR (Equivalent Series Resistance) | 50 Ohms |
| Operating Mode | Fundamental |
| Operating Temperature Range | -20°C ~ 70°C |
| Mounting Type | Surface Mount |
| Package / Case | 4-SMD, No Lead |
| Size / Dimension | 0.126" L x 0.098" W (3.20mm x 2.50mm) |
| Height - Seated (Max) | 0.031" (0.80mm) |
Substitute Part Grouping Explanation
Substitution eligibility for the 7M-25.000MEEC-T is determined by strict equivalence across the following critical parameters:
- Frequency: 25 MHz (exact match required)
- Frequency Stability: ±10ppm (exact match required)
- Load Capacitance: 9pF (exact match required)
- ESR: 50 Ohms (exact match required)
- Operating Mode: Fundamental (exact match required)
- Operating Temperature Range: -20°C ~ 70°C (exact match required)
- Package / Case: 4-SMD, No Lead (exact match required)
- Physical Dimensions: 3.20mm x 2.50mm, 0.80mm height maximum (exact match required)
The substitute part 830051068 from Würth Elektronik meets all specified electrical and mechanical parameters, enabling direct functional replacement in applications requiring 25 MHz crystal oscillation with the defined performance characteristics.
Parameter Comparison
| Parameter | 7M-25.000MEEC-T (TXC) | 830051068 (Würth Elektronik) | Match Status |
|---|---|---|---|
| Frequency | 25 MHz | 25 MHz | Equivalent |
| Frequency Stability | ±10ppm | ±10ppm | Equivalent |
| Frequency Tolerance | ±10ppm | ±10ppm | Equivalent |
| Load Capacitance | 9pF | 9pF | Equivalent |
| ESR (Equivalent Series Resistance) | 50 Ohms | 50 Ohms | Equivalent |
| Operating Mode | Fundamental | Fundamental | Equivalent |
| Operating Temperature Range | -20°C ~ 70°C | -20°C ~ 70°C | Equivalent |
| Mounting Type | Surface Mount | Surface Mount | Equivalent |
| Package / Case | 4-SMD, No Lead | 4-SMD, No Lead | Equivalent |
| Size / Dimension | 3.20mm x 2.50mm | 3.20mm x 2.50mm | Equivalent |
| Height - Seated (Max) | 0.031" (0.80mm) | 0.031" (0.80mm) | Equivalent |
| Product Status | Active | Active | Equivalent |
| ECCN Classification | EAR99 | EAR99 | Equivalent |
| HTSUS Code | 8541.60.0060 | 8541.60.0060 | Equivalent |
Engineering Selection Recommendations
Both the 7M-25.000MEEC-T and 830051068 are active production components with equivalent electrical specifications and identical mechanical form factors. Selection between these parts may be based on:
Availability and Inventory: The 830051068 (Würth Elektronik) currently has 2048 pieces in stock compared to 1131 pieces for the 7M-25.000MEEC-T (TXC CORPORATION), providing additional supply chain flexibility.
Compliance Status: The 830051068 includes documented RoHS3 compliance and REACH unaffected status. Both parts share identical ECCN (EAR99) and HTSUS (8541.60.0060) classifications.
Packaging: Both parts are supplied in Tape & Reel (TR) format, suitable for automated assembly processes.
Frequently Asked Questions (FAQ)
Q: Can the 830051068 be used as a direct replacement for the 7M-25.000MEEC-T?
A: Yes. The 830051068 meets all electrical and mechanical specifications of the 7M-25.000MEEC-T, including frequency, stability, load capacitance, ESR, operating temperature range, and physical dimensions. No circuit modifications are required.
Q: Are there differences in package dimensions between these parts?
A: No. Both parts use identical 4-SMD, No Lead packaging with dimensions of 3.20mm x 2.50mm and maximum seated height of 0.80mm.
Q: What are the critical parameters that must match for substitution?
A: Frequency (25 MHz), frequency stability (±10ppm), load capacitance (9pF), ESR (50 Ohms), operating mode (Fundamental), operating temperature range (-20°C ~ 70°C), and package type (4-SMD, No Lead) must all be equivalent.
Q: Does the 830051068 have additional compliance certifications?
A: The 830051068 is documented as RoHS3 compliant and REACH unaffected. Both parts share the same ECCN and HTSUS classifications.
Q: Are there any performance differences between the TXC and Würth Elektronik versions?
A: No performance differences exist within the specified parameters. Both parts operate identically within the defined electrical and environmental specifications.
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