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CNC Tech 231-44 PLCC Socket – Equivalent & Substitute Parts
Part Overview
The CNC Tech 231-44 is a 44-position PLCC socket designed for through-hole mounting applications. This component features gold-plated contacts, phosphor bronze materials, and closed-frame construction suitable for IC and transistor socket applications. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production and maintenance requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 231-44 |
| Manufacturer | CNC Tech |
| Category | Sockets for ICs, Transistors |
| Type | PLCC |
| Number of Positions | 44 (4 x 11) |
| Pitch - Mating | 0.050" (1.27mm) |
| Pitch - Post | 0.100" (2.54mm) |
| Contact Finish - Mating | Gold |
| Contact Finish - Post | Gold |
| Mounting Type | Through Hole |
| Operating Temperature Range | -55°C ~ 105°C |
| Current Rating | 1 A |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the CNC Tech 231-44 is determined by the following critical parameters:
Mandatory Matching Parameters:
- Type: PLCC socket
- Number of Positions: 44 (4 x 11)
- Pitch - Mating: 0.050" (1.27mm)
- Pitch - Post: 0.100" (2.54mm)
- Mounting Type: Through Hole
- Contact Finish: Gold on both mating and post surfaces
- Features: Closed Frame
Acceptable Variation Parameters:
- Operating Temperature Range: Substitute must meet or exceed the minimum and maximum temperature requirements
- Contact Resistance: Lower values are acceptable
- Termination Post Length: Minor variations within manufacturing tolerance are acceptable
- Housing Material: Both glass-filled and unfilled PBT are functionally equivalent
The Assmann WSW Components A-CCS 044-G-T meets all mandatory matching parameters and is classified as an active product, making it a direct functional equivalent.
Parameter Comparison
| Parameter | CNC Tech 231-44 | Assmann WSW A-CCS 044-G-T |
|---|---|---|
| Manufacturer Part Number | 231-44 | A-CCS 044-G-T |
| Type | PLCC | PLCC |
| Number of Positions | 44 (4 x 11) | 44 (4 x 11) |
| Pitch - Mating | 0.050" (1.27mm) | 0.050" (1.27mm) |
| Pitch - Post | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Contact Finish - Mating | Gold | Gold |
| Contact Finish - Post | Gold | Gold |
| Contact Material | Phosphor Bronze | Phosphor Bronze |
| Mounting Type | Through Hole | Through Hole |
| Features | Closed Frame | Closed Frame |
| Termination | Solder | Solder |
| Operating Temperature Range | -55°C ~ 105°C | -40°C ~ 105°C |
| Current Rating | 1 A | 1 A |
| Contact Resistance | 30 mOhm | 15 mOhm |
| Termination Post Length | 0.124" (3.15mm) | 0.132" (3.35mm) |
| Housing Material | Polybutylene Terephthalate (PBT), Glass Filled | Polybutylene Terephthalate (PBT) |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The Assmann WSW Components A-CCS 044-G-T is the direct equivalent for the obsolete CNC Tech 231-44. Both components are ROHS3 compliant and carry UL94 V-0 flammability certification. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.
The A-CCS 044-G-T demonstrates improved electrical performance with lower contact resistance (15 mOhm versus 30 mOhm), while maintaining identical mechanical and electrical specifications for all critical parameters. The operating temperature range of the substitute (-40°C ~ 105°C) covers the upper operating limit of the original part and is suitable for applications within the original specification range.
Minor dimensional variations in termination post length (0.132" versus 0.124") fall within standard manufacturing tolerances for through-hole socket applications and do not affect functional compatibility or PCB assembly processes.
Frequently Asked Questions (FAQ)
Q: Can the Assmann WSW A-CCS 044-G-T be used as a direct replacement for the CNC Tech 231-44?
A: Yes. Both components share identical PLCC socket specifications including 44-position configuration, 0.050" mating pitch, 0.100" post pitch, gold contact finish, closed-frame design, and through-hole mounting. All critical electrical and mechanical parameters match.
Q: What is the difference in operating temperature range between these parts?
A: The CNC Tech 231-44 operates from -55°C to 105°C, while the Assmann WSW A-CCS 044-G-T operates from -40°C to 105°C. For applications requiring operation below -40°C, the original part specification must be maintained. For standard industrial and commercial applications within -40°C to 105°C, the substitute is fully compatible.
Q: Does the lower contact resistance of the substitute part affect compatibility?
A: No. Lower contact resistance (15 mOhm versus 30 mOhm) represents improved electrical performance and does not compromise compatibility. This characteristic is beneficial for signal integrity and power delivery in socket applications.
Q: Are there packaging differences between these components?
A: The CNC Tech 231-44 packaging is not specified in available documentation. The Assmann WSW A-CCS 044-G-T is supplied in tube packaging. Verify packaging requirements for your specific assembly process.
Q: Are both components RoHS compliant?
A: Yes. Both the CNC Tech 231-44 and Assmann WSW A-CCS 044-G-T are ROHS3 compliant and carry UL94 V-0 flammability certification, meeting current regulatory requirements for electronic component applications.
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