SFM-135-T1-S-D Equivalent & Substitute Parts

Part Overview

The SFM-135-T1-S-D is a 70-position receptacle connector from Samtec Inc.'s Tiger Eye™ SFM series, designed for board-to-board or cable applications. This rectangular connector features 0.050" (1.27mm) pitch mating with gold-plated contacts and through-hole solder termination. The part is currently active in production with 774 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part number becomes unavailable or when alternative configurations meet application requirements.

Substiute Parts

SFM-135-T1-S-D

Samtec Inc.In Stock: 817SFM-135-T1-S-D Datasheet

Current PartRFQ

SFM-135-01-S-D

Samtec Inc.In Stock: 1196SFM-135-01-S-D Datasheet

SimilarRFQ

SFM-135-01-S-D-A

Samtec Inc.In Stock: 765SFM-135-01-S-D-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SFM-135-T1-S-D are identified based on electrical and mechanical parameter equivalence within the Tiger Eye™ SFM series. The substitution criteria are strictly limited to the following parameters:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (70)
• Pitch - mating (0.050" / 1.27mm)
• Number of rows (2)
• Row spacing - mating (0.050" / 1.27mm)
• Mounting type (Through Hole)
• Termination method (Solder)
• Contact finish - mating (Gold)
• Current rating (3.2A per Contact)
• Voltage rating (250VAC)
• Operating temperature range (-55°C ~ 125°C)
• Material flammability rating (UL94 V-0)
• RoHS compliance (ROHS3 Compliant)

Parts meeting all these criteria are functionally equivalent for standard board-to-board or cable connection applications. Variations in features such as board guide presence or moisture sensitivity level do not affect core electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—SFM-135-T1-S-D, SFM-135-01-S-D, and SFM-135-01-S-D-A—are active products from Samtec Inc. and meet ROHS3 compliance and UL94 V-0 flammability requirements. Selection between these parts should be based on the following factors:

SFM-135-T1-S-D and SFM-135-01-S-D are electrically and mechanically identical with no feature differentiation. Both carry Not Applicable moisture sensitivity level classification.

SFM-135-01-S-D-A includes a board guide feature and carries MSL 1 (Unlimited) classification. This variant is suitable for applications requiring enhanced mechanical guidance during mating operations or where unlimited moisture exposure tolerance is required.

All three parts share identical electrical ratings (3.2A per contact, 250VAC), operating temperature range (-55°C ~ 125°C), and physical dimensions. Substitution between any of these parts does not require design modification or PCB layout changes.

Frequently Asked Questions (FAQ)

Q: Can SFM-135-01-S-D be used as a direct replacement for SFM-135-T1-S-D?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical contact configurations, pitch, row spacing, current and voltage ratings, and operating temperature range. No design changes are required for substitution.

Q: What is the difference between SFM-135-01-S-D and SFM-135-01-S-D-A?

A: The primary difference is the inclusion of a board guide feature in the SFM-135-01-S-D-A variant. Additionally, SFM-135-01-S-D-A carries MSL 1 (Unlimited) classification, while SFM-135-01-S-D carries Not Applicable MSL. Electrical and mechanical parameters are identical between the two.

Q: Are all three parts suitable for the same PCB footprint?

A: Yes. All three parts maintain identical mating pitch (0.050"), row spacing (0.050"), insulation height (0.180"), and contact post length (0.120"). PCB footprints designed for any one of these parts accommodate all three without modification.

Q: What is the significance of the board guide feature in SFM-135-01-S-D-A?

A: The board guide provides mechanical alignment assistance during connector mating. This feature does not affect electrical performance or compatibility with mating connectors but improves assembly reliability in applications requiring precise alignment.

Q: Do all three parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant, carry UL94 V-0 flammability rating, and share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications.

Q: Which part should be selected for high-moisture environments?

A: SFM-135-01-S-D-A carries MSL 1 (Unlimited) classification, indicating unlimited moisture exposure tolerance. For applications with continuous or extended moisture exposure, SFM-135-01-S-D-A is the appropriate selection.

Q: Are there any inventory considerations for part selection?

A: Current inventory levels are SFM-135-T1-S-D (774 units), SFM-135-01-S-D (1173 units), and SFM-135-01-S-D-A (733 units). All three parts are in active production with adequate stock availability.