BBD-126-G-D Equivalent & Substitute Parts

Part Overview

The BBD-126-G-D is a rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board applications. This vertical header features 52 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing. The connector is classified as Active product status and is ROHS3 compliant with MSL 1 rating, making it suitable for standard industrial and commercial electronics assembly.

Substitute parts are identified when mechanical and electrical parameters align with the main part specification, allowing direct replacement in PCB designs without circuit modification.

Substiute Parts

BBD-126-G-D

Samtec Inc.In Stock: 1121BBD-126-G-D Datasheet

Current PartRFQ

BBD-126-G-A

Samtec Inc.In Stock: 906BBD-126-G-A Datasheet

MFR RecommendedRFQ

BBD-126-G-B

Samtec Inc.In Stock: 853BBD-126-G-B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BBD-126-G-D are identified based on strict parameter alignment within the BBD series. The following parameters determine substitution eligibility:

• Manufacturer: Samtec Inc.
• Series: BBD
• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 52
• Number of Rows: 2
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole
• Termination: Solder
• Operating Temperature: -55°C ~ 125°C
• RoHS Status: ROHS3 Compliant

The substitute parts BBD-126-G-A and BBD-126-G-B meet all these core parameters. Variations exist only in Overall Contact Length and Insulation Height, which are mechanical form factors that do not affect electrical compatibility or mating interface specifications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—BBD-126-G-D, BBD-126-G-A, and BBD-126-G-B—maintain Active product status from Samtec Inc. and carry identical ROHS3 compliance and REACH Unaffected certifications. The electrical and mating interface specifications are identical across all variants.

Selection between these parts is determined by PCB design requirements related to overall connector height. The BBD-126-G-D provides the longest profile at 1.085" (27.56mm) overall contact length with 0.835" (21.21mm) insulation height. The BBD-126-G-A offers the shortest profile at 0.460" (11.68mm) overall contact length with 0.211" (5.35mm) insulation height. The BBD-126-G-B provides an intermediate profile at 0.585" (14.86mm) overall contact length with 0.335" (8.51mm) insulation height.

All parts are suitable for applications requiring ROHS3 compliance and unlimited moisture sensitivity handling. Inventory availability varies: BBD-126-G-D (1037 pcs), BBD-126-G-A (815 pcs), and BBD-126-G-B (765 pcs).

Frequently Asked Questions (FAQ)

Q: Can BBD-126-G-A or BBD-126-G-B be used as direct replacements for BBD-126-G-D?

A: Yes, within the constraints of PCB board-to-board spacing. All three parts share identical mating pitch (0.100"), contact configuration (52 positions, 2 rows), contact geometry, and electrical specifications. The difference lies in overall connector height. If your PCB design accommodates the shorter profiles of BBD-126-G-A or BBD-126-G-B, they are electrically and mechanically compatible.

Q: What determines the choice between BBD-126-G-D, BBD-126-G-A, and BBD-126-G-B?

A: The primary selection criterion is available PCB height clearance. BBD-126-G-D requires 0.835" (21.21mm) of vertical space. BBD-126-G-B requires 0.335" (8.51mm). BBD-126-G-A requires the least space at 0.211" (5.35mm). All other electrical and mechanical parameters are identical.

Q: Are there compliance or certification differences between these parts?

A: No. All three parts carry identical ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating. Operating temperature range is -55°C to 125°C across all variants.

Q: What is the mating interface compatibility between these parts?

A: All three parts feature identical mating specifications: 0.100" (2.54mm) pitch, 52 positions in 2 rows, 0.100" (2.54mm) row spacing, and circular gold-plated contacts. Mating interface compatibility is complete.

Q: Does connector height affect electrical performance?

A: No. The height variation reflects only the insulation body length and overall contact length. Mating contact length (0.125" / 3.18mm) and post contact length (0.125" / 3.18mm) are identical, ensuring equivalent electrical performance and signal integrity.