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BU160Z-178-HT Equivalent & Substitute Parts
Part Overview
The BU160Z-178-HT is a 16-position DIP socket manufactured by On Shore Technology Inc., designed for IC and transistor applications with 0.3" (7.62mm) row spacing. This component features gold-plated beryllium copper mating contacts, surface mount termination, and an open frame design. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for new designs and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | BU160Z-178-HT |
| Manufacturer | On Shore Technology Inc. |
| Number of Positions | 16 (2 x 8) |
| Type | DIP, 0.3" (7.62mm) Row Spacing |
| Pitch - Mating | 0.100" (2.54mm) |
| Contact Finish - Mating | Gold |
| Contact Material - Mating | Beryllium Copper |
| Mounting Type | Surface Mount |
| Termination | Solder |
| Operating Temperature | -55°C ~ 125°C |
| Current Rating | 1 A |
| Contact Resistance | 7 mOhm |
| RoHS Status | ROHS3 Compliant |
| Material Flammability Rating | UL94 V-0 |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict adherence to the following critical parameters:
- Position Count & Pitch: All substitutes must maintain 16 positions with 0.100" (2.54mm) mating pitch and 0.3" (7.62mm) row spacing
- Mounting Type: Surface mount configuration required
- Mating Contact Material: Beryllium copper specified
- Operating Temperature Range: -55°C to 125°C minimum
- Termination Method: Solder termination required
- Frame Configuration: Open frame design
Substitute parts are grouped into two categories based on mating contact finish:
Category A - Gold Plated Mating Contacts: Parts 110-93-316-41-105000, 114-41-316-41-117000, 114-43-316-41-117000, 114-87-316-41-134161, 114-91-316-41-117000, 114-93-316-41-117000
Category B - Tin or Tin-Lead Mating Contacts: Parts 110-43-316-41-105000, 214-44-316-01-670800, 214-99-316-01-670799, 214-99-316-01-670800
Category A substitutes provide direct electrical equivalence with gold contact finish matching the original specification. Category B substitutes offer functional alternatives with different contact finishes suitable for applications where gold plating is not required.
Parameter Comparison
| Parameter | BU160Z-178-HT | 110-43-316-41-105000 | 110-93-316-41-105000 | 114-41-316-41-117000 | 114-43-316-41-117000 | 114-87-316-41-134161 | 114-91-316-41-117000 | 114-93-316-41-117000 | 214-44-316-01-670800 | 214-99-316-01-670799 | 214-99-316-01-670800 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | On Shore Technology Inc. | Mill-Max Manufacturing Corp. | Mill-Max Manufacturing Corp. | Mill-Max Manufacturing Corp. | Mill-Max Manufacturing Corp. | Preci-Dip | Mill-Max Manufacturing Corp. | Mill-Max Manufacturing Corp. | Mill-Max Manufacturing Corp. | Mill-Max Manufacturing Corp. | Mill-Max Manufacturing Corp. |
| Number of Positions | 16 (2 x 8) | 16 (2 x 8) | 16 (2 x 8) | 16 (2 x 8) | 16 (2 x 8) | 16 (2 x 8) | 16 (2 x 8) | 16 (2 x 8) | 16 (2 x 8) | 16 (2 x 8) | 16 (2 x 8) |
| Type | DIP, 0.3" (7.62mm) | DIP, 0.3" (7.62mm) | DIP, 0.3" (7.62mm) | DIP, 0.3" (7.62mm) | DIP, 0.3" (7.62mm) | DIP, 0.3" (7.62mm) | DIP, 0.3" (7.62mm) | DIP, 0.3" (7.62mm) | DIP, 0.3" (7.62mm) | DIP, 0.3" (7.62mm) | DIP, 0.3" (7.62mm) |
| Pitch - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Contact Finish - Mating | Gold | Tin | Gold | Gold | Gold | Gold | Gold | Gold | Tin | Tin-Lead | Tin-Lead |
| Contact Material - Mating | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper |
| Mounting Type | Surface Mount | Through Hole | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Features | Open Frame | Open Frame | Open Frame | Open Frame | Open Frame | Open Frame | Open Frame | Open Frame | Closed Frame | Closed Frame | Closed Frame |
| Termination | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C |
| Current Rating | 1 A | 3 A | 3 A | 3 A | 3 A | 1 A | 3 A | 3 A | 3 A | 3 A | 3 A |
| Contact Resistance | 7 mOhm | — | — | 10 mOhm | 10 mOhm | 10 mOhm | 10 mOhm | — | — | — | — |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | — | RoHS non-compliant | ROHS3 Compliant | RoHS non-compliant | RoHS non-compliant |
| Material Flammability Rating | UL94 V-0 | — | — | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | — | — | UL94 V-0 | — |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
Primary Substitutes (Gold Mating Contact Finish)
For applications requiring direct electrical and functional equivalence with gold-plated mating contacts, the following active parts are recommended:
114-41-316-41-117000 and 114-43-316-41-117000 (Mill-Max Manufacturing Corp., Series 114) are preferred substitutes. Both maintain ROHS3 compliance, UL94 V-0 flammability rating, and beryllium copper mating contacts with gold finish. These parts offer enhanced current rating (3 A) and contact resistance specifications (10 mOhm) compared to the original 1 A / 7 mOhm rating, providing superior performance margins.
114-87-316-41-134161 (Preci-Dip, Series 114) provides an alternative gold-plated option with ROHS3 compliance and UL94 V-0 rating. This part maintains 1 A current rating matching the original specification and offers a shorter termination post length (0.047" vs. 0.059").
110-93-316-41-105000 (Mill-Max Manufacturing Corp., Series 110) is an active surface mount gold-plated substitute with ROHS3 compliance. This part features enhanced current rating (3 A) and is suitable for applications where the Series 110 footprint is acceptable.
Secondary Substitutes (Alternative Contact Finishes)
For applications where contact finish flexibility is acceptable, tin or tin-lead mating contact options provide functional alternatives:
214-44-316-01-670800 (Mill-Max Manufacturing Corp., Series 214) offers tin mating contact finish with ROHS3 compliance and closed frame design. This part is suitable for cost-optimized designs where gold plating is not required.
214-99-316-01-670799 and 214-99-316-01-670800 (Mill-Max Manufacturing Corp., Series 214) provide tin-lead mating contact options with closed frame design. These parts are suitable for legacy system compatibility where tin-lead finish is specified.
Compliance Considerations
All recommended primary substitutes maintain ROHS3 compliance and UL94 V-0 flammability rating, ensuring regulatory alignment with the original BU160Z-178-HT specification. Secondary substitutes with non-compliant RoHS status are suitable only for applications where RoHS exemptions apply or legacy compliance requirements are specified.
Mounting Type Consideration
Part 110-43-316-41-105000 features through-hole mounting, differing from the original surface mount configuration. This part is not recommended for direct PCB layout substitution without design modification.
Frequently Asked Questions (FAQ)
Q: Can I substitute a tin-plated socket for the original gold-plated BU160Z-178-HT?
A: Tin-plated substitutes (214-44-316-01-670800, 214-99-316-01-670799, 214-99-316-01-670800) are functionally compatible for IC insertion and retention. However, gold plating provides superior corrosion resistance and contact reliability in high-humidity or corrosive environments. Select tin-plated alternatives only when environmental conditions permit and cost optimization is prioritized.
Q: What is the difference between open frame and closed frame socket designs?
A: Open frame sockets (BU160Z-178-HT, 110-93-316-41-105000, 114-series parts) provide unrestricted access to contact springs and are suitable for standard DIP package insertion. Closed frame sockets (214-series parts) feature a housing structure that provides additional mechanical support and are preferred for high-vibration or shock environments. Both designs maintain identical electrical performance for standard IC applications.
Q: Are the Mill-Max Series 114 substitutes pin-compatible with the original BU160Z-178-HT?
A: Yes. All Series 114 substitutes (114-41-316-41-117000, 114-43-316-41-117000, 114-91-316-41-117000, 114-93-316-41-117000) maintain identical 16-position DIP configuration with 0.100" (2.54mm) mating pitch and 0.3" (7.62mm) row spacing. PCB footprints are directly compatible without modification.
Q: What is the significance of the higher current rating (3 A) in substitute parts compared to the original 1 A specification?
A: The 3 A current rating in Mill-Max and Preci-Dip substitutes indicates enhanced contact design and material specifications. This provides additional performance margin and is backward compatible with applications designed for 1 A operation. No design modification is required when upgrading to higher-rated substitutes.
Q: Which substitute should I select for new production designs?
A: For new designs requiring ROHS3 compliance and gold mating contact finish, 114-41-316-41-117000 or 114-43-316-41-117000 are recommended. Both parts are active, widely available, and offer superior electrical specifications compared to the obsolete original. For cost-sensitive applications, 214-44-316-01-670800 provides a functional alternative with tin mating contact finish and ROHS3 compliance.
Q: Is the Preci-Dip 114-87-316-41-134161 suitable for high-reliability applications?
A: Yes. The Preci-Dip part maintains ROHS3 compliance, UL94 V-0 flammability rating, and 10 mOhm contact resistance specification. The shorter termination post length (0.047") may require PCB design verification for solder joint geometry, but electrical performance is suitable for high-reliability applications.
Q: What packaging options are available for these substitute parts?
A: Substitute parts are available in tube and tape & reel (TR) packaging. 214-99-316-01-670799 is supplied in tape & reel format suitable for automated assembly. All other substitutes are available in tube packaging for manual or semi-automated placement.
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