Equivalent & Substitute Parts for 55101-S17-03

Part Overview

The 55101-S17-03 is a rectangular connector header manufactured by Amphenol ICC (FCI) under the BERGSTIK® series. This through-hole, right-angle connector features 3 positions with 0.100" (2.54mm) pitch spacing and is designed for board-to-board applications. The part is currently active in production with 1001 pieces available in inventory. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component interchange based on electrical and mechanical compatibility.

Substiute Parts

55101-S17-03

Amphenol ICC (FCI)In Stock: 106655101-S17-03 Datasheet

Current PartRFQ

825437-3

TE Connectivity AMP ConnectorsIn Stock: 18550825437-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of rectangular connector headers is determined by strict alignment of core electrical and mechanical parameters. The 55101-S17-03 can be substituted with 825437-3 based on the following criteria:

Critical Matching Parameters:

• Connector Type: Header (both unshrouded, male pin contact)
• Number of Positions: 3
• Pitch - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole, Right Angle
• Termination: Solder
• Contact Shape: Square
• Style: Board to Board (or Board to Board/Cable for 825437-3)
• Fastening Type: Push-Pull
• Material Flammability Rating: UL94 V-0

Allowable Variations: Contact length, insulation height, contact material composition, contact finish specifications, and insulation color are secondary parameters that may vary between substitute parts while maintaining functional compatibility in standard board-to-board applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 55101-S17-03 and 825437-3 are active products suitable for board-to-board connector applications. Selection between these parts should be based on the following factors:

55101-S17-03 (Amphenol ICC BERGSTIK®): Use when the original design specification calls for this part number or when the BERGSTIK® series is required for form factor consistency. This part is RoHS non-compliant and should be selected only when RoHS compliance is not a design requirement.

825437-3 (TE Connectivity AMPMODU Mod II): Use as a substitute when RoHS3 compliance is required or when design flexibility permits. This part offers documented operating temperature range (-65°C ~ 105°C) and current rating (5A), providing additional specification clarity. The breakaway feature of the AMPMODU Mod II series offers design flexibility for modular applications.

Both parts share identical core electrical and mechanical parameters: 3-position, 0.100" pitch, through-hole right-angle headers with square male pins, solder termination, and UL94 V-0 flammability rating. Inventory availability should also be considered; 825437-3 has higher stock levels (18524 pieces) compared to 55101-S17-03 (1001 pieces).

Frequently Asked Questions (FAQ)

Q: Can 825437-3 be used as a direct replacement for 55101-S17-03 in existing designs?

A: Yes, 825437-3 is functionally compatible as a substitute. Both connectors share identical pitch (0.100"), position count (3), mounting type (through-hole right-angle), and contact configuration (square male pins). Minor differences in contact length and insulation height are within acceptable tolerances for standard board-to-board applications. PCB layout verification is recommended to confirm mechanical fit.

Q: What are the key differences between these two connector headers?

A: The primary differences are: contact material (Phosphor Bronze vs. Brass), contact finish thickness on mating surfaces (15.0µin vs. 3.90µin), insulation material specification (not specified vs. PBT), insulation height (0.140" vs. 0.100"), and RoHS compliance status (non-compliant vs. ROHS3 compliant). The 825437-3 also provides documented operating temperature and current rating specifications.

Q: Does the difference in contact finish thickness affect performance?

A: Contact finish thickness is a secondary parameter that does not affect functional compatibility in standard applications. Both parts meet UL94 V-0 flammability requirements and are rated for push-pull fastening. The gold finish on both parts ensures reliable electrical contact.

Q: Are there any packaging or inventory considerations?

A: Both parts are supplied in bulk packaging. The 825437-3 has significantly higher inventory availability (18524 pieces) compared to 55101-S17-03 (1001 pieces), which may influence sourcing decisions for high-volume production.

Q: What is the significance of the breakaway feature on the 825437-3?

A: The AMPMODU Mod II series breakaway feature allows individual positions to be separated if required for modular designs. This feature does not affect compatibility with the 55101-S17-03 in standard applications where the full 3-position header is used as a single unit.

Q: Is RoHS compliance a factor in selecting between these parts?

A: RoHS compliance is a design requirement consideration. The 55101-S17-03 is RoHS non-compliant, while 825437-3 is ROHS3 compliant. If your application or market requires RoHS compliance, 825437-3 is the appropriate selection.