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Amphenol ICC 79258-140 Equivalent & Substitute Parts
Part Overview
The Amphenol ICC 79258-140 is a rectangular connector header featuring a right-angle, through-hole mount configuration with 40 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This BERGSTIK® II series connector is designed for board-to-board applications with unshrouded, male pin contacts and solder termination. The part is currently active in production with 743 units in stock.
Substitute parts become necessary when the primary part reaches end-of-life status, when inventory constraints occur, or when design requirements allow for functionally equivalent alternatives that meet the same electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Header |
| Contact Type | Male Pin |
| Number of Positions | 40 |
| Number of Rows | 2 |
| Pitch - Mating | 0.100" (2.54mm) |
| Row Spacing - Mating | 0.100" (2.54mm) |
| Mounting Type | Through Hole, Right Angle |
| Style | Board to Board |
| Termination | Solder |
| Contact Finish - Mating | Gold or Gold, GXT™ |
| Material Flammability Rating | UL94 V-0 |
| Insulation Color | Black |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the 79258-140 is determined by strict adherence to the following critical parameters:
Primary Matching Criteria:
- Connector type: Header
- Contact type: Male Pin
- Number of positions: 40
- Number of rows: 2
- Pitch - mating: 0.100" (2.54mm)
- Row spacing - mating: 0.100" (2.54mm)
- Mounting type: Through Hole, Right Angle
- Style: Board to Board or Board to Board/Cable
- Termination: Solder
- Contact finish - mating: Gold
- Material flammability rating: UL94 V-0
- Insulation color: Black
- MSL: 1 (Unlimited)
Identified Substitutes:
Direct Substitute (40-Position): TE Connectivity AMP Connectors 7-146311-0 matches all critical parameters with identical position count and pitch specifications. This part is classified as Obsolete but maintains full electrical and mechanical compatibility.
Alternative Substitute (40-Position): Hirose Electric Co Ltd A1-40PA-2.54DS(71) provides equivalent functionality with identical position and pitch specifications. This part is Active in production status and RoHS Compliant.
Note on 4-102979-0: TE Connectivity AMP Connectors 4-102979-0 is an 80-position variant that does not meet the 40-position requirement of the primary part and is therefore not a direct substitute.
Parameter Comparison
| Parameter | 79258-140 (Amphenol ICC) | 7-146311-0 (TE Connectivity) | A1-40PA-2.54DS(71) (Hirose) |
|---|---|---|---|
| Connector Type | Header | Header, Breakaway | Header |
| Contact Type | Male Pin | Male Pin | Male Pin |
| Number of Positions | 40 | 40 | 40 |
| Number of Rows | 2 | 2 | 2 |
| Pitch - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Row Spacing - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Mounting Type | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle |
| Style | Board to Board | Board to Board or Cable | Board to Board or Cable |
| Termination | Solder | Press-Fit, Solder | Solder |
| Contact Length - Mating | 0.318" (8.08mm) | 0.318" (8.08mm) | 0.236" (6.00mm) |
| Contact Length - Post | 0.120" (3.05mm) | 0.110" (2.79mm) | 0.118" (3.00mm) |
| Insulation Height | 0.190" (4.83mm) | 0.238" (6.05mm) | 0.236" (6.00mm) |
| Contact Shape | Square | Square | Square |
| Contact Finish - Mating | Gold or Gold, GXT™ | Gold | Gold |
| Contact Finish Thickness - Mating | 30.0µin (0.76µm) | 30.0µin (0.76µm) | 8.00µin (0.203µm) |
| Contact Material | Phosphor Bronze | Copper Alloy | Brass |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 | UL94 V-0 |
| Insulation Color | Black | Black | Black |
| Current Rating (Amps) | Not specified | 3A | 3A |
| Operating Temperature | Not specified | -65°C ~ 105°C | -55°C ~ 85°C |
| Voltage Rating | Not specified | Not specified | 200V |
| Product Status | Active | Obsolete | Active |
| RoHS Status | RoHS non-compliant | RoHS Compliant | RoHS Compliant |
| MSL | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Packaging | Bulk | Not specified | Tray |
Engineering Selection Recommendations
For Active Production Designs: The Hirose Electric Co Ltd A1-40PA-2.54DS(71) is the preferred substitute for new designs. This part maintains Active product status, is RoHS Compliant, and provides equivalent electrical and mechanical performance. The part is available in tray packaging with 922 units in stock.
For Legacy or Non-RoHS Applications: The TE Connectivity AMP Connectors 7-146311-0 provides direct compatibility with the 79258-140. Although classified as Obsolete, this part meets all critical electrical and mechanical parameters. The part is RoHS Compliant and available with 913 units in stock. Designers should verify long-term availability before committing to this substitute in new designs.
Compliance Considerations: The primary part 79258-140 is RoHS non-compliant. Both substitute parts (7-146311-0 and A1-40PA-2.54DS(71)) are RoHS Compliant, making them suitable for applications requiring RoHS certification.
Frequently Asked Questions (FAQ)
Q: Can the 79258-140 be directly replaced with the 7-146311-0? A: Yes. Both parts share identical pitch (0.100" / 2.54mm), position count (40), row configuration (2 rows), mounting type (through-hole right-angle), and contact finish specifications (gold). The 7-146311-0 is classified as Obsolete but maintains full electrical and mechanical compatibility.
Q: What is the primary difference between the 79258-140 and the A1-40PA-2.54DS(71)? A: The primary differences are contact length specifications and operating temperature range. The A1-40PA-2.54DS(71) has a shorter mating contact length (0.236" vs 0.318") and a narrower operating temperature range (-55°C ~ 85°C vs unspecified for the 79258-140). Both parts are electrically and mechanically compatible for standard board-to-board applications.
Q: Why is the 4-102979-0 not listed as a substitute? A: The 4-102979-0 is an 80-position connector, whereas the 79258-140 is a 40-position connector. Position count is a critical parameter that determines physical fit and electrical connectivity. This part cannot be used as a direct substitute.
Q: Are there packaging differences between the substitutes? A: Yes. The 79258-140 is supplied in Bulk packaging, the 7-146311-0 packaging is not specified, and the A1-40PA-2.54DS(71) is supplied in Tray packaging. Packaging format may affect handling, storage, and integration into assembly processes but does not affect electrical or mechanical performance.
Q: Which substitute should be selected for RoHS-compliant applications? A: Both the 7-146311-0 and A1-40PA-2.54DS(71) are RoHS Compliant. The A1-40PA-2.54DS(71) is preferred for new designs due to its Active product status. The 7-146311-0 is suitable for legacy applications but is classified as Obsolete.
Q: Do the substitutes have specified current and voltage ratings? A: The 7-146311-0 and A1-40PA-2.54DS(71) both specify a 3A current rating. The A1-40PA-2.54DS(71) specifies a 200V voltage rating. The primary part 79258-140 does not provide current or voltage specifications in the available data.
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