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Switchcraft 151PKG Barrel Connector - Equivalent & Substitute Parts
Part Overview
The Switchcraft 151PKG is a 6.35mm (0.250", 1/4") mono headphone phone jack connector designed for panel mount applications. This connector features solder eyelet termination and includes mounting hardware with thread lock capability. The part is currently active in production with 1125 units in stock. Alternative part numbers may be required due to packaging specifications, inventory availability, or procurement requirements for bulk applications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Connector Type | Phone Jack |
| Gender | Female |
| Signal Lines | Mono |
| Mating Diameter | 6.35mm (0.250", 1/4") - Headphone |
| Number of Positions/Contacts | 2 Conductors, 2 Contacts |
| Mounting Type | Panel Mount |
| Termination | Solder Eyelet(s) |
| Shielding | Unshielded |
| Internal Switch | Does Not Contain Switch |
| Thread Size | 15/32-32 NS-2A |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
The Switchcraft 151 serves as a direct substitute for the 151PKG. Substitution eligibility is determined by the following critical parameters:
- Connector Type: Phone Jack (Female)
- Signal Configuration: Mono (2 Conductors, 2 Contacts)
- Mating Diameter: 6.35mm (0.250", 1/4") headphone standard
- Mounting Configuration: Panel Mount with solder eyelet termination
- Mechanical Compatibility: Thread size 15/32"-32 for panel mounting
- Regulatory Compliance: ROHS3 Compliant, REACH Unaffected
The primary difference between 151PKG and 151 is packaging format: 151PKG is supplied in standard packaging with individual connector, nut, and washer, while 151 is available in bulk packaging. Both parts maintain identical electrical and mechanical specifications for the connector interface.
Parameter Comparison
| Parameter | 151PKG (Main Part) | 151 (Substitute) |
|---|---|---|
| Manufacturer | Switchcraft Inc. | Switchcraft Inc. |
| Category | Barrel Connectors | Barrel Connectors |
| Connector Type | Phone Jack | Phone Jack |
| Gender | Female | Female |
| Signal Lines | Mono | Mono |
| Mating Diameter | 6.35mm (0.250", 1/4") | 6.35mm (0.250", 1/4") |
| Actual Diameter | 0.250" (6.35mm) | 0.253" (6.43mm) |
| Number of Positions/Contacts | 2 Conductors, 2 Contacts | 2 Conductors, 2 Contacts |
| Mounting Type | Panel Mount | Panel Mount |
| Termination | Solder Eyelet(s) | Solder Eyelet(s) |
| Shielding | Unshielded | Unshielded |
| Internal Switch | Does Not Contain Switch | Does Not Contain Switch |
| Features | Mounting Hardware, Thread Lock | Mounting Hardware, Thread Lock |
| Thread Size | 15/32-32 NS-2A | 15/32"-32 |
| Contact Material - Plating | Not specified | Nickel |
| Body Material | Not specified | Copper Alloy |
| Body Color | Not specified | Gold |
| Contact Material | Not specified | Copper Alloy |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
| Packaging | Standard (Individual) | Bulk |
| Inventory Status | 1125 Pcs New Original In Stock | 1230 Pcs New Original In Stock |
Engineering Selection Recommendations
Both the 151PKG and 151 maintain active product status with ROHS3 compliance and REACH unaffected certification. Selection between these parts should be based on procurement requirements:
The 151PKG is appropriate for applications requiring standard individual packaging with pre-assembled hardware components (connector, nut, washer).
The 151 is appropriate for high-volume applications or procurement scenarios where bulk packaging reduces material costs and packaging waste. The 151 offers higher current inventory availability at 1230 units compared to 1125 units for 151PKG.
Both parts satisfy identical electrical and mechanical interface requirements for 6.35mm mono headphone jack applications with panel mount configuration.
Frequently Asked Questions (FAQ)
Q: Can the 151 substitute for the 151PKG in all applications?
A: Yes. Both parts are electrically and mechanically equivalent for the connector interface. The primary difference is packaging format. The 151PKG includes pre-packaged hardware (nut and washer), while the 151 is supplied in bulk. Verify that your assembly process accommodates bulk packaging if selecting the 151.
Q: What is the significance of the actual diameter difference (0.250" vs 0.253")?
A: The actual diameter variance (6.35mm vs 6.43mm) falls within acceptable mechanical tolerance for the 6.35mm headphone jack standard. Both parts are compatible with standard 6.35mm jack receptacles.
Q: Are there any compliance differences between 151PKG and 151?
A: No. Both parts carry identical ROHS3 compliance and REACH unaffected status. Regulatory requirements are satisfied by either part number.
Q: Which part should be selected for new designs?
A: Either part is suitable for new designs. Selection depends on procurement strategy: choose 151PKG for applications requiring individual packaging with included hardware, or 151 for bulk procurement scenarios.
Q: Is inventory availability a factor in part selection?
A: The 151 currently has higher inventory (1230 units) compared to 151PKG (1125 units). For time-sensitive procurement, the 151 may offer faster availability.
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