TE Connectivity 104655-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 104655-8 is a surface mount rectangular connector header with 70 positions arranged in 2 rows at 0.050" (1.27mm) pitch. This connector is part of the AMPMODU 50/50 Grid series and features shrouded 4-wall construction with push-pull fastening. The part is currently active in production with 1090 units in stock.

Substitute parts are necessary when the original TE Connectivity 104655-8 becomes unavailable, when alternative compliance requirements must be met, or when specific packaging formats are required for manufacturing processes. The Samtec Tiger Eye TFM and TFML series connectors provide functional equivalents with enhanced electrical ratings and improved RoHS compliance.

Substiute Parts

104655-8

TE Connectivity AMP ConnectorsIn Stock: 1189104655-8 Datasheet

Current PartRFQ

TFM-135-02-L-D-A

Samtec Inc.In Stock: 875TFM-135-02-L-D-A Datasheet

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TFM-135-02-L-D-A-K

Samtec Inc.In Stock: 792TFM-135-02-L-D-A-K Datasheet

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TFM-135-02-L-D-A-K-TR

Samtec Inc.In Stock: 1634TFM-135-02-L-D-A-K-TR Datasheet

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TFM-135-02-S-D-A

Samtec Inc.In Stock: 1138TFM-135-02-S-D-A Datasheet

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TFM-135-02-S-D-A-P-TR

Samtec Inc.In Stock: 1323TFM-135-02-S-D-A-P-TR Datasheet

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TFM-135-02-S-D-LC

Samtec Inc.In Stock: 1902TFM-135-02-S-D-LC Datasheet

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TFML-135-02-L-D-A

Samtec Inc.In Stock: 1003TFML-135-02-L-D-A Datasheet

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TFML-135-02-S-D-LC

Samtec Inc.In Stock: 1318TFML-135-02-S-D-LC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 104655-8 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 70
• Number of Rows: 2
• Pitch - Mating: 0.050" (1.27mm)
• Row Spacing - Mating: 0.050" (1.27mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Surface Mount
• Shrouding: Shrouded - 4 Wall
• Termination: Solder
• Insulation Material: Liquid Crystal Polymer (LCP)
• Material Flammability Rating: UL94 V-0
• Insulation Color: Black

Allowable Variations:

• Fastening Type: Push-Pull (original) to Friction Lock (TFML series)
• Contact Finish - Mating: Gold with varying thickness (15.0µin or 30.0µin)
• Contact Shape: Circular (original) to Square (Samtec alternatives)
• Contact Length - Mating: 0.120" to 0.134"
• Insulation Height: 0.226" to 0.220"
• Current Rating: 0.5A to 2.9A per contact
• Operating Temperature: -65°C to -55°C minimum; 105°C to 125°C maximum
• Packaging Format: Tube, Cut Tape, or Tape & Reel
• RoHS Compliance: Non-compliant (original) to ROHS3 Compliant (substitutes)

All substitute parts are from Samtec Inc. and belong to either the Tiger Eye TFM or Tiger Eye TFML series. These parts maintain board-to-board or cable connectivity capability and preserve the 70-position, 2-row configuration essential for direct replacement.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (TFM Series with Push-Pull Fastening):

The Samtec Tiger Eye TFM series connectors TFM-135-02-L-D-A, TFM-135-02-L-D-A-K, TFM-135-02-L-D-A-K-TR, TFM-135-02-S-D-A, TFM-135-02-S-D-A-P-TR, and TFM-135-02-S-D-LC are direct functional equivalents to the TE Connectivity 104655-8. These parts maintain identical connector geometry, pitch, row configuration, and push-pull fastening mechanism. All TFM series substitutes are ROHS3 compliant and REACH unaffected, providing improved regulatory compliance compared to the original part. The TFM series offers enhanced current ratings of 2.9A per contact and 275VAC voltage rating, exceeding the original specification of 0.5A per contact.

Selection among TFM variants depends on packaging requirements:

• TFM-135-02-L-D-A (Tube): Standard packaging for manual assembly
• TFM-135-02-L-D-A-K (Tube): Includes pick and place feature for automated assembly
• TFM-135-02-L-D-A-K-TR (Cut Tape): Automated assembly with cut tape format
• TFM-135-02-S-D-A (Tube): Thicker gold plating (30.0µin) matching original specification
• TFM-135-02-S-D-A-P-TR (Tape & Reel): Automated assembly with tape and reel format
• TFM-135-02-S-D-LC (Tube): Board lock feature with thicker gold plating

Secondary Substitutes (TFML Series with Friction Lock Fastening):

The Samtec Tiger Eye TFML series connectors TFML-135-02-L-D-A and TFML-135-02-S-D-LC provide functional equivalence with friction lock fastening instead of push-pull. These parts maintain all critical geometric and electrical parameters but employ a different mating mechanism. TFML series parts are ROHS3 compliant and suitable for applications where friction lock engagement is acceptable. Current and voltage ratings are not specified for TFML parts.

Compliance Considerations:

All Samtec substitute parts are ROHS3 compliant, addressing the RoHS non-compliance status of the original TE Connectivity 104655-8. Samtec TFM series parts are REACH unaffected, providing superior regulatory status compared to the original REACH affected designation. The transition from tin-lead post finish to tin-only finish on all substitutes aligns with modern manufacturing standards.

Operating Temperature Range:

Samtec substitutes operate from -55°C to 125°C, compared to the original -65°C to 105°C range. Applications requiring operation below -55°C or above 125°C must retain the original TE Connectivity 104655-8.

Frequently Asked Questions (FAQ)

Q: Can Samtec TFM series connectors directly replace the TE Connectivity 104655-8 in existing designs?

A: Yes. The TFM series maintains identical mating pitch (0.050"), row spacing (0.050"), position count (70), row configuration (2 rows), shrouding (4-wall), and solder termination. The connectors are mechanically and electrically compatible for board-to-board applications. Contact length differences (0.120" original vs. 0.131" TFM) are within acceptable tolerance for standard PCB designs.

Q: What is the difference between TFM and TFML series connectors?

A: The primary difference is the fastening mechanism. TFM series uses push-pull fastening identical to the original TE Connectivity 104655-8. TFML series uses friction lock fastening, which provides a different mating engagement method. Both series maintain identical pitch, position count, and row configuration. Selection depends on whether the application requires push-pull or friction lock engagement.

Q: Why do some Samtec part numbers include "-K" or "-P" suffixes?

A: The "-K" suffix indicates pick and place features for automated assembly equipment. The "-P" suffix indicates additional pick and place optimization. These suffixes do not affect electrical or mechanical compatibility; they address manufacturing process requirements.

Q: What packaging formats are available for Samtec substitutes?

A: Samtec offers three packaging formats: Tube (standard manual assembly), Cut Tape (CT) for automated pick and place, and Tape & Reel (TR) for high-volume automated assembly. All formats contain identical connectors; packaging selection depends on assembly process requirements.

Q: Are there differences in gold plating thickness between substitute options?

A: Yes. Some Samtec parts specify 15.0µin (0.38µm) gold plating thickness, while others specify 30.0µin (0.76µm). The original TE Connectivity 104655-8 uses 30.0µin thickness. For applications sensitive to contact resistance or wear characteristics, select Samtec parts with matching 30.0µin thickness: TFM-135-02-S-D-A, TFM-135-02-S-D-A-P-TR, TFM-135-02-S-D-LC, or TFML-135-02-S-D-LC.

Q: What is the significance of the "-L-D-A" designation in Samtec part numbers?

A: This designation indicates specific connector configuration options. "-L" refers to connector length or profile variant, "-D" indicates the contact design, and "-A" specifies the finish and material combination. These designations are part of Samtec's standard naming convention and do not indicate compatibility issues.

Q: Do Samtec substitutes support the same current and voltage ratings as the original?

A: Samtec TFM series parts exceed the original specifications, supporting 2.9A per contact and 275VAC compared to the original 0.5A per contact. TFML series parts do not specify current or voltage ratings. For applications requiring specific electrical ratings, TFM series provides enhanced capability.

Q: What is the operating temperature range difference, and does it affect compatibility?

A: The original TE Connectivity 104655-8 operates from -65°C to 105°C. Samtec substitutes operate from -55°C to 125°C. Applications requiring operation below -55°C must use the original part. Applications within the -55°C to 105°C range are fully compatible with Samtec substitutes.

Q: Are all Samtec substitutes RoHS compliant?

A: Yes. All Samtec TFM and TFML series substitutes are ROHS3 compliant, compared to the original TE Connectivity 104655-8 which is RoHS non-compliant. This provides improved regulatory compliance for new designs and applications subject to RoHS requirements.

Q: What is the difference between "Board to Board" and "Board to Board or Cable" style designations?

A: The original TE Connectivity 104655-8 is designated "Board to Board" style. Samtec substitutes are designated "Board to Board or Cable" style, indicating broader application flexibility. This designation does not affect board-to-board compatibility; it indicates the connector can also support cable applications.

Q: How do contact shape differences (circular vs. square) affect compatibility?

A: The original TE Connectivity 104655-8 uses circular contacts, while Samtec substitutes use square contacts. Both contact shapes maintain identical pitch and mating dimensions. Contact shape differences do not affect mechanical or electrical compatibility for standard PCB receptacle designs.