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7C-50.000MBA-T Equivalent & Substitute Parts
Part Overview
The 7C-50.000MBA-T is a 50 MHz XO (Standard) CMOS oscillator manufactured by TXC CORPORATION. This surface mount crystal oscillator operates at 3.3V with enable/disable functionality, housed in a 4-SMD, No Lead package. The device is Active in product status and RoHS Compliant, making it suitable for applications requiring stable 50 MHz frequency generation with low power consumption.
Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across manufacturers, ensuring functional interchangeability in circuit designs without requiring layout or schematic modifications.
Substiute Parts
Key Parameters
| Parameter | Value | Substitution Relevance |
|---|---|---|
| Frequency | 50 MHz | Critical - Must match exactly |
| Output Type | CMOS | Critical - Determines signal compatibility |
| Supply Voltage | 3.3V | Critical - Must match power rail |
| Function | Enable/Disable | Critical - Control pin compatibility |
| Frequency Stability | ±25ppm | Critical - Timing accuracy specification |
| Operating Temperature | -10°C ~ 70°C | Critical - Environmental operating range |
| Package / Case | 4-SMD, No Lead | Critical - PCB footprint compatibility |
| Size / Dimension | 5.00mm x 3.20mm | Critical - Physical placement constraints |
| Height - Seated (Max) | 1.40mm | Critical - Clearance and assembly compatibility |
| Mounting Type | Surface Mount | Critical - Assembly process compatibility |
| Current - Supply (Max) | 30mA (Main) / 25mA (Substitute) | Important - Power consumption specification |
| RoHS Status | RoHS Compliant / ROHS3 Compliant | Important - Regulatory compliance |
Substitute Part Grouping Explanation
Substitution eligibility for the 7C-50.000MBA-T is determined by strict equivalence across the following parameters:
Critical Electrical Parameters:
- Frequency: 50 MHz (exact match required)
- Output: CMOS (signal type compatibility)
- Supply Voltage: 3.3V (power rail compatibility)
- Function: Enable/Disable (control interface compatibility)
- Frequency Stability: ±25ppm (timing accuracy)
- Operating Temperature Range: -10°C ~ 70°C (environmental compatibility)
Critical Mechanical Parameters:
- Package / Case: 4-SMD, No Lead (footprint compatibility)
- Size / Dimension: 5.00mm x 3.20mm (placement compatibility)
- Height - Seated (Max): 1.40mm (clearance compatibility)
- Mounting Type: Surface Mount (assembly process compatibility)
Compliance Parameters:
- RoHS Status: RoHS Compliant or equivalent (regulatory requirement)
The substitute part SXO53C3C171-50.000M meets all critical parameters. Minor variations in maximum supply current (25mA vs. 30mA) and packaging format (Bulk vs. Tape & Reel) do not affect functional substitution, as the electrical performance and physical compatibility remain equivalent.
Parameter Comparison
| Parameter | 7C-50.000MBA-T (TXC) | SXO53C3C171-50.000M (Suntsu) | Match Status |
|---|---|---|---|
| Manufacturer | TXC CORPORATION | Suntsu Electronics, Inc. | Different Manufacturer |
| Series | 7C | SXO53C | Different Series |
| Frequency | 50 MHz | 50 MHz | Equivalent |
| Type | XO (Standard) | XO (Standard) | Equivalent |
| Output | CMOS | CMOS | Equivalent |
| Supply Voltage | 3.3V | 3.3V | Equivalent |
| Function | Enable/Disable | Enable/Disable | Equivalent |
| Frequency Stability | ±25ppm | ±25ppm | Equivalent |
| Operating Temperature | -10°C ~ 70°C | -10°C ~ 70°C | Equivalent |
| Current - Supply (Max) | 30mA | 25mA | Compatible (Lower) |
| Mounting Type | Surface Mount | Surface Mount | Equivalent |
| Package / Case | 4-SMD, No Lead | 4-SMD, No Lead | Equivalent |
| Size / Dimension | 5.00mm x 3.20mm | 5.00mm x 3.20mm | Equivalent |
| Height - Seated (Max) | 1.40mm | 1.40mm | Equivalent |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | Compliant |
| Product Status | Active | Active | Equivalent |
Engineering Selection Recommendations
Primary Part: 7C-50.000MBA-T
The 7C-50.000MBA-T remains the primary selection when available in Tape & Reel packaging format. This part is Active in product status, RoHS Compliant, and maintains full compliance with REACH and EAR99 export classifications. Current inventory of 1112 pieces supports standard procurement timelines.
Substitute Part: SXO53C3C171-50.000M
The SXO53C3C171-50.000M is a direct functional equivalent when the primary part is unavailable. This Suntsu Electronics oscillator maintains identical electrical specifications (50 MHz, 3.3V, CMOS output, Enable/Disable function, ±25ppm stability) and mechanical compatibility (4-SMD, No Lead, 5.00mm x 3.20mm, 1.40mm height). The substitute operates within the same temperature range (-10°C ~ 70°C) and meets ROHS3 compliance. Maximum supply current is 25mA, which is lower than the primary part's 30mA specification, indicating equivalent or superior power efficiency. The substitute is available in Bulk packaging with higher inventory (6220 pieces), supporting expedited procurement when needed.
Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, ensuring consistent regulatory treatment in supply chain operations.
Frequently Asked Questions (FAQ)
Q: Can the SXO53C3C171-50.000M be used as a direct replacement for the 7C-50.000MBA-T without circuit modifications?
A: Yes. Both oscillators operate at 50 MHz with 3.3V supply, CMOS output, and Enable/Disable control. The 4-SMD, No Lead package, physical dimensions (5.00mm x 3.20mm), and height (1.40mm) are identical. No schematic or PCB layout changes are required.
Q: What is the difference in supply current between these parts?
A: The 7C-50.000MBA-T specifies a maximum supply current of 30mA, while the SXO53C3C171-50.000M specifies 25mA. The substitute part operates at lower maximum current, which is compatible with designs rated for the primary part's 30mA specification.
Q: Are both parts RoHS compliant?
A: Yes. The 7C-50.000MBA-T is RoHS Compliant, and the SXO53C3C171-50.000M is ROHS3 Compliant. Both meet current RoHS requirements for lead-free manufacturing and hazardous substance restrictions.
Q: Do packaging format differences (Tape & Reel vs. Bulk) affect electrical performance?
A: No. Packaging format affects only procurement and handling logistics. The electrical and mechanical specifications of the oscillator itself remain identical regardless of whether the part is supplied in Tape & Reel or Bulk format.
Q: What is the frequency stability specification for both parts?
A: Both the 7C-50.000MBA-T and SXO53C3C171-50.000M maintain ±25ppm frequency stability across the operating temperature range of -10°C ~ 70°C.
Q: Can these oscillators be used in applications requiring higher operating temperatures?
A: No. Both parts are specified for -10°C ~ 70°C operation. Applications requiring extended temperature ranges require alternative oscillator models with different thermal specifications.
Q: Are there any export or regulatory restrictions on these parts?
A: Both parts are classified as EAR99 under export control regulations and are REACH Unaffected. Standard export documentation applies. No additional licensing is required for standard commercial distribution.
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