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ESQ-104-39-G-D Equivalent & Substitute Parts
Part Overview
The ESQ-104-39-G-D is an 8-position elevated socket connector manufactured by Samtec Inc., designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This through-hole component features gold-plated forked contacts and is rated for 5.7A per contact at 550VAC. The part is currently active in production with ROHS3 compliance and UL94 V-0 flammability rating. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector series, ensuring functional interchangeability in circuit designs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Elevated Socket |
| Number of Positions | 8 |
| Pitch - Mating | 0.100" (2.54mm) |
| Number of Rows | 2 |
| Row Spacing - Mating | 0.100" (2.54mm) |
| Mounting Type | Through Hole |
| Contact Type | Forked |
| Current Rating | 5.7A per Contact |
| Voltage Rating | 550VAC |
| Operating Temperature | -55°C ~ 125°C |
| Contact Finish - Mating | Gold |
| Insulation Material | Liquid Crystal Polymer (LCP) |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
The ESQ-104-14-G-D qualifies as a direct substitute for the ESQ-104-39-G-D based on identical electrical and mechanical specifications. Both parts share the same base product number (ESQ-104) and maintain equivalence across all critical parameters: 8-position configuration, 0.100" pitch spacing, 2-row layout, through-hole solder termination, forked contact geometry, gold plating, 5.7A current rating, 550VAC voltage rating, and -55°C to 125°C operating temperature range. Both connectors feature Liquid Crystal Polymer insulation with UL94 V-0 flammability certification and ROHS3 compliance. The substitution is valid for applications requiring board-to-board elevated socket connectivity with these electrical and thermal specifications.
Parameter Comparison
| Parameter | ESQ-104-39-G-D | ESQ-104-14-G-D |
|---|---|---|
| Manufacturer | Samtec Inc. | Samtec Inc. |
| Series | ESQ | ESQ |
| Connector Type | Elevated Socket | Elevated Socket |
| Number of Positions | 8 | 8 |
| Contact Type | Forked | Forked |
| Pitch - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Number of Rows | 2 | 2 |
| Row Spacing - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Mounting Type | Through Hole | Through Hole |
| Termination | Solder | Solder |
| Fastening Type | Push-Pull | Push-Pull |
| Contact Finish - Mating | Gold | Gold |
| Contact Finish Thickness - Mating | 20.0µin (0.51µm) | 20.0µin (0.51µm) |
| Insulation Color | Black | Black |
| Insulation Height | 0.435" (11.05mm) | 0.435" (11.05mm) |
| Contact Length - Post | 0.480" (12.19mm) | 0.480" (12.19mm) |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 |
| Contact Finish - Post | Gold | Gold |
| Current Rating (Amps) | 5.7A per Contact | 5.7A per Contact |
| Voltage Rating | 550VAC | 550VAC |
| Insulation Material | Liquid Crystal Polymer (LCP) | Liquid Crystal Polymer (LCP) |
| Contact Shape | Square | Square |
| Contact Material | Phosphor Bronze | Phosphor Bronze |
| Contact Finish Thickness - Post | 3.00µin (0.076µm) | 3.00µin (0.076µm) |
| Base Product Number | ESQ-104 | ESQ-104 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8536.69.4040 | 8536.69.4040 |
| Product Status | Active | Active |
Engineering Selection Recommendations
Both the ESQ-104-39-G-D and ESQ-104-14-G-D are active production parts with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability and supply chain considerations. The ESQ-104-39-G-D currently has 805 units in stock, while the ESQ-104-14-G-D has 1158 units available. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications. The UL94 V-0 flammability rating applies to both connectors, ensuring compliance with safety standards for board-to-board interconnect applications.
Frequently Asked Questions (FAQ)
Q: Can ESQ-104-14-G-D be used as a direct replacement for ESQ-104-39-G-D?
A: Yes. Both parts are functionally equivalent across all electrical and mechanical parameters, including connector type, position count, pitch spacing, current and voltage ratings, operating temperature range, and material specifications.
Q: Are there differences in contact plating between these parts?
A: No. Both parts feature identical gold plating specifications: 20.0µin (0.51µm) on mating contacts and 3.00µin (0.076µm) on posts.
Q: Do both parts meet the same regulatory standards?
A: Yes. Both ESQ-104-39-G-D and ESQ-104-14-G-D are ROHS3 compliant, REACH unaffected, and carry UL94 V-0 flammability certification.
Q: What is the difference between these part numbers?
A: The part numbers differ in their suffix designations (39 versus 14), but this does not affect electrical or mechanical performance. Both parts share the same base product number (ESQ-104) and are manufactured by Samtec Inc. within the same ESQ series.
Q: Are the physical dimensions identical?
A: Yes. Both connectors have identical insulation height (0.435"), contact length (0.480"), and row spacing (0.100"), ensuring mechanical compatibility in PCB layouts.
Q: What is the current and voltage rating for these connectors?
A: Both parts are rated for 5.7A per contact and 550VAC, suitable for standard industrial control and signal distribution applications.
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