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C8128-04 Equivalent & Substitute Parts
Part Overview
The C8128-04 is a 28-position DIP socket manufactured by Aries Electronics, designed for IC and transistor applications with 0.6" (15.24mm) row spacing. This component features tin-plated phosphor bronze contacts, wire wrap termination, and a closed frame design suitable for through-hole mounting. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support and component sourcing.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Number of Positions | 28 (2 x 14) |
| Row Spacing | 0.6" (15.24mm) |
| Pitch - Mating | 0.100" (2.54mm) |
| Pitch - Post | 0.100" (2.54mm) |
| Mounting Type | Through Hole |
| Termination | Wire Wrap |
| Operating Temperature Range | -55°C ~ 105°C |
| Current Rating | 1.5 A |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the C8128-04 is determined by the following critical parameters:
- Position count and grid configuration: 28 positions in 2 x 14 arrangement
- Row spacing: 0.6" (15.24mm) for mechanical compatibility
- Pitch specifications: 0.100" (2.54mm) for both mating and post
- Mounting method: Through hole wire wrap termination
- Electrical performance: Current rating and contact material capability
- Environmental compliance: RoHS3 and flammability certification
The substitute part AR 28-HZW/TN from Assmann WSW Components meets these core mechanical and electrical requirements, though with variations in contact finish material and operating temperature range.
Parameter Comparison
| Parameter | C8128-04 (Aries Electronics) | AR 28-HZW/TN (Assmann WSW) |
|---|---|---|
| Number of Positions | 28 (2 x 14) | 28 (2 x 14) |
| Row Spacing | 0.6" (15.24mm) | 0.6" (15.24mm) |
| Pitch - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Pitch - Post | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Mounting Type | Through Hole | Through Hole |
| Termination | Wire Wrap | Wire Wrap |
| Contact Finish - Mating | Tin | Gold |
| Contact Material - Mating | Phosphor Bronze | Beryllium Copper |
| Contact Finish - Post | Tin | Tin |
| Contact Material - Post | Phosphor Bronze | Beryllium Copper |
| Operating Temperature Range | -55°C ~ 105°C | -40°C ~ 105°C |
| Current Rating | 1.5 A | 3 A |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The AR 28-HZW/TN socket from Assmann WSW Components is a functional substitute for the obsolete C8128-04. Both components share identical mechanical specifications (28-position DIP, 0.6" row spacing, 0.100" pitch) and wire wrap termination, ensuring physical and electrical compatibility in through-hole applications.
Key differences exist in contact materials and operating temperature range. The AR 28-HZW/TN features gold-plated beryllium copper mating contacts compared to the tin-plated phosphor bronze of the C8128-04, providing enhanced contact reliability and corrosion resistance. The substitute part supports a higher current rating (3 A versus 1.5 A) and maintains the same UL94 V-0 flammability certification and ROHS3 compliance.
The operating temperature range of the AR 28-HZW/TN (-40°C ~ 105°C) is narrower at the lower end compared to the C8128-04 (-55°C ~ 105°C). Applications requiring operation below -40°C must account for this limitation.
Frequently Asked Questions (FAQ)
Q: Are the C8128-04 and AR 28-HZW/TN mechanically interchangeable?
A: Yes. Both sockets feature identical 28-position DIP configuration with 0.6" row spacing and 0.100" pitch specifications. They are designed for the same through-hole wire wrap mounting applications and will fit the same PCB footprints.
Q: What is the difference in contact finish between these two parts?
A: The C8128-04 uses tin-plated phosphor bronze contacts, while the AR 28-HZW/TN uses gold-plated beryllium copper contacts. Gold plating provides superior corrosion resistance and lower contact resistance (4mOhm specified for the substitute), making it suitable for applications requiring higher reliability.
Q: Does the lower operating temperature limit of the AR 28-HZW/TN affect compatibility?
A: The AR 28-HZW/TN operates from -40°C to 105°C, compared to the C8128-04 range of -55°C to 105°C. If your application requires operation below -40°C, the substitute part is not suitable. For applications within the -40°C to 105°C range, there is no functional limitation.
Q: Why does the AR 28-HZW/TN have a higher current rating?
A: The higher current rating (3 A versus 1.5 A) reflects the superior electrical characteristics of beryllium copper contacts compared to phosphor bronze. This provides additional design margin for applications with higher current requirements.
Q: Are both parts RoHS3 compliant?
A: Yes. Both the C8128-04 and AR 28-HZW/TN are ROHS3 compliant and carry UL94 V-0 flammability certification, meeting the same regulatory requirements.
Q: What is the packaging difference?
A: The C8128-04 packaging is not specified in the available data. The AR 28-HZW/TN is supplied in tube packaging. Confirm packaging requirements with your procurement specifications.
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