Molex 0761550837 96-Position Backplane Connector Header – Equivalent & Substitute Parts

Part Overview

The Molex 0761550837 is a 96-position Impact series backplane connector header designed for through-hole PCB mounting. This connector features male pins with press-fit termination, gold-plated contacts, and is rated for 30V operation across a temperature range of -55°C to 85°C. The part is classified as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support and procurement.

Substiute Parts

0761550837

MolexIn Stock: 7390761550837 Datasheet

Current PartRFQ

0761551837

MolexIn Stock: 8860761551837 Datasheet

DirectRFQ

1934303-1

TE Connectivity AMP ConnectorsIn Stock: 12291934303-1 Datasheet

MFR RecommendedRFQ

1934304-1

TE Connectivity AMP ConnectorsIn Stock: 11131934304-1 Datasheet

MFR RecommendedRFQ

1934305-1

TE Connectivity AMP ConnectorsIn Stock: 12901934305-1 Datasheet

MFR RecommendedRFQ

1934306-1

TE Connectivity AMP ConnectorsIn Stock: 14561934306-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0761550837 is determined by the following critical parameters:

Primary Substitution Criteria:

• Number of positions: 96
• Connector type: Header, Male Pins
• Mounting type: Through Hole
• Termination method: Press-Fit
• Contact finish: Gold
• Material flammability: UL94 V-0
• RoHS compliance: ROHS3 Compliant

Substitution Groups:

Group 1: Direct Molex Series Equivalent

• Part 0761551837 is the active production equivalent within the Molex Impact 76155 series. This part maintains identical electrical and mechanical specifications to the original 0761550837, with the primary difference being packaging (Tray vs. standard packaging) and active product status.

Group 2: TE Connectivity AMP Connectors – Z-PACK TinMan Series

• Parts 1934303-1, 1934304-1, 1934305-1, and 1934306-1 are functionally equivalent alternatives from TE Connectivity. These parts share the same 96-position configuration, through-hole mounting, press-fit termination, gold contact finish, and UL94 V-0 flammability rating. However, these substitutes operate at different electrical specifications (0.5A current rating, 250V voltage rating) and feature a different pitch (0.075" / 1.90mm vs. 0.053" / 1.35mm), requiring PCB layout verification before implementation.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Path): Select Molex 0761551837 when the original 0761550837 is no longer available. This part is the active production equivalent within the same Impact 76155 series, maintaining identical electrical and mechanical specifications. The part is ROHS3 compliant, carries active product status, and offers superior inventory availability (805 units in stock). Packaging differs (Tray vs. standard), but electrical and mechanical compatibility is complete.

For Alternative Substitution (Requires Design Review): TE Connectivity 1934303-1, 1934304-1, 1934305-1, or 1934306-1 may be considered as alternatives when Molex parts are unavailable and design constraints permit. These parts maintain the same 96-position configuration, through-hole mounting, press-fit termination, and gold contact finish. However, the pitch difference (0.075" vs. 0.053") requires PCB layout verification. The higher voltage rating (250V vs. 30V) and specified current rating (0.5A) provide enhanced electrical performance for applications requiring greater margin. All variants are ROHS3 compliant and carry active product status with high inventory availability (1168–1435 units per variant).

Frequently Asked Questions (FAQ)

Q: Can Molex 0761551837 be used as a direct replacement for Molex 0761550837? A: Yes. Both parts are from the Molex Impact 76155 series and share identical electrical and mechanical specifications, including pitch (0.053" / 1.35mm), position count (96), mounting type (through-hole), termination method (press-fit), contact finish (gold), and operating temperature range (-55°C to 85°C). The primary difference is packaging and product status (0761551837 is active production).

Q: What is the main limitation when substituting TE Connectivity parts for the Molex original? A: The pitch differs: TE Connectivity Z-PACK TinMan series uses 0.075" (1.90mm) pitch, while the Molex Impact 76155 uses 0.053" (1.35mm) pitch. This requires PCB layout modification and hole pattern verification before implementation. Electrical specifications also differ (250V vs. 30V, 0.5A current rating specified).

Q: Are all substitute parts ROHS3 compliant? A: Yes. The Molex 0761551837 and all TE Connectivity alternatives (1934303-1, 1934304-1, 1934305-1, 1934306-1) are ROHS3 compliant and carry UL94 V-0 flammability ratings.

Q: Which substitute part offers the best inventory availability? A: TE Connectivity 1934306-1 offers the highest inventory availability at 1435 units in stock. Molex 0761551837 provides 805 units. All alternatives exceed the original part's inventory level (707 units).

Q: Can TE Connectivity parts be used in applications originally designed for the Molex 0761550837? A: Compatibility depends on PCB layout tolerance for the pitch difference (0.075" vs. 0.053"). The higher voltage rating (250V) and specified current capacity (0.5A) of TE Connectivity parts are suitable for applications within the original 30V, unspecified-current design envelope. PCB hole pattern and spacing must be verified before substitution.

Q: What is the difference between the four TE Connectivity part numbers (1934303-1, 1934304-1, 1934305-1, 1934306-1)? A: All four parts share identical electrical and mechanical specifications within the Z-PACK TinMan series. The primary distinction is connector usage designation: 1934305-1 specifies "Backplane" usage, while the others do not. Inventory levels vary (1168–1435 units). Selection should be based on application requirements and availability.