TE Connectivity AMP Connectors 1376478-7 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1376478-7 is an active rectangular connector header designed for through-hole mounting applications. This shrouded 7-position connector operates within the Signal Mate series and features a 0.098" (2.50mm) pitch configuration suitable for board-to-cable/wire interconnections. The connector is specified for general-purpose applications with operating temperatures ranging from -30°C to 105°C and a voltage rating of 50V. Substitute parts are necessary when inventory constraints exist, when alternative fastening mechanisms are preferred, or when enhanced voltage ratings and current specifications are required for specific application requirements.

Substiute Parts

1376478-7

TE Connectivity AMP ConnectorsIn Stock: 8151376478-7 Datasheet

Current PartRFQ

B07B-XASK-1(LF)(SN)

JST Sales America Inc.In Stock: 2809B07B-XASK-1(LF)(SN) Datasheet

SimilarRFQ

B07B-XASK-1-A

JST Sales America Inc.In Stock: 16663B07B-XASK-1-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 1376478-7 is determined by strict alignment with the following core parameters: connector type (header), contact type (male pin), number of positions (7), number of rows (1), mating pitch (0.098"/2.50mm), mounting type (through hole), shrouding configuration (shrouded 4-wall), style (board to cable/wire), insulation material (Polyamide PA66 glass-filled), and flammability rating (UL94 V-0). All substitute parts must maintain these specifications to ensure mechanical and electrical compatibility within the intended application space.

The JST Sales America Inc. parts B07B-XASK-1-A and B07B-XASK-1(LF)(SN) satisfy these core substitution criteria. Both parts are active rectangular connectors in the XA series with identical position counts, pitch specifications, mounting configurations, and insulation material compositions. Differences in contact post length, fastening type, contact material composition, operating temperature range, and voltage/current ratings represent secondary variations that do not preclude substitution but require application-level evaluation.

Parameter Comparison

Engineering Selection Recommendations

All three connectors maintain active product status and full ROHS3 compliance with UL94 V-0 flammability certification. The TE Connectivity 1376478-7 operates across a wider temperature range (-30°C to 105°C) compared to the JST alternatives (-25°C to 85°C), making the original part suitable for applications requiring extended low-temperature performance. Conversely, the JST B07B-XASK-1-A and B07B-XASK-1(LF)(SN) provide enhanced voltage ratings (250V versus 50V) and specified current capacity (3A), supporting higher-power applications.

The B07B-XASK-1-A variant includes a board guide feature matching the original part specification and offers the largest inventory availability (16,620 pieces). The B07B-XASK-1(LF)(SN) variant provides the longest contact post length (0.134" versus 0.126" on the original), which may accommodate thicker PCB assemblies or specific mating depth requirements.

Selection between substitute parts depends on application voltage and current demands, operating temperature constraints, and PCB assembly thickness specifications. All three parts satisfy core mechanical and electrical compatibility requirements for 7-position, 2.50mm-pitch through-hole header applications.

Frequently Asked Questions (FAQ)

Q: Can the JST B07B-XASK-1-A be used as a direct replacement for the TE Connectivity 1376478-7?

A: The B07B-XASK-1-A satisfies all core substitution criteria including connector type, position count, pitch, mounting configuration, and insulation material. The primary differences are contact post length (0.118" versus 0.126"), fastening mechanism (locking ramp versus latch holder), and operating temperature range (-25°C to 85°C versus -30°C to 105°C). Substitution is valid for applications operating within the JST temperature range and not requiring the extended low-temperature performance of the original part.

Q: What is the difference between B07B-XASK-1-A and B07B-XASK-1(LF)(SN)?

A: Both parts are JST XA series 7-position headers with identical core specifications. The primary distinction is contact post length: B07B-XASK-1-A provides 0.118" (3.00mm) while B07B-XASK-1(LF)(SN) provides 0.134" (3.40mm). The longer post length on the B07B-XASK-1(LF)(SN) accommodates deeper mating depths or thicker PCB assemblies. Both parts carry identical voltage (250V), current (3A), and temperature (-25°C to 85°C) ratings.

Q: Are there compatibility concerns with the different contact shapes (square versus circular)?

A: The TE Connectivity 1376478-7 features square contacts while both JST substitutes use circular contacts. Contact shape differences do not preclude substitution provided the mating connector cavity dimensions accommodate the alternative contact geometry. Verification of mating connector specifications is necessary to confirm dimensional compatibility.

Q: How do the voltage ratings affect substitution decisions?

A: The TE Connectivity 1376478-7 is rated for 50V while both JST alternatives are rated for 250V. The higher voltage rating of the JST parts provides additional safety margin for applications operating at or near the original 50V specification. Applications requiring voltages exceeding 50V must use the JST substitutes. Applications operating well below 50V can use either part without voltage-related constraints.

Q: What are the implications of different fastening types (latch holder versus locking ramp)?

A: The TE Connectivity 1376478-7 uses a latch holder fastening mechanism while the JST substitutes employ a locking ramp design. These represent different mechanical retention approaches. The mating connector must be compatible with the fastening type of the selected header. Verification of mating connector specifications is required to ensure mechanical compatibility.

Q: Are all three parts suitable for lead-free soldering applications?

A: All three connectors are ROHS3 compliant with tin contact finishes on both mating and post surfaces. This composition supports lead-free soldering processes. The tin finish provides adequate wetting characteristics for standard lead-free solder alloys used in contemporary PCB assembly operations.

Q: What inventory considerations should influence part selection?

A: The TE Connectivity 1376478-7 has 722 pieces in stock. The JST B07B-XASK-1-A offers significantly higher availability with 16,620 pieces, while the B07B-XASK-1(LF)(SN) provides 2,700 pieces. For applications with extended lead times or high-volume requirements, the B07B-XASK-1-A represents the most readily available substitute option.