HTST-105-05-G-D-RA Equivalent & Substitute Parts

Part Overview

The HTST-105-05-G-D-RA is a rectangular connector header manufactured by Samtec Inc., designed for through-hole, right-angle board-to-cable/wire applications. This 10-position connector operates across the industrial temperature range of -55°C to 125°C and features shrouded 4-wall construction with push-pull fastening. The part is Active status and ROHS3 compliant, making it suitable for applications requiring reliable interconnection with keying slot protection. Equivalent and substitute parts are identified based on matching electrical and mechanical parameters that ensure functional compatibility in circuit board assembly and interconnection applications.

Key Parameters

Parameter	HTST-105-05-G-D-RA Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	10
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Fastening Type	Push-Pull
Material Flammability Rating	UL94 V-0
Operating Temperature	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the HTST-105-05-G-D-RA are qualified based on the following critical parameters that determine functional interchangeability:

Primary Matching Criteria:

Connector Type: Header
Contact Type: Male Pin
Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 10
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole, Right Angle
Shrouding: Shrouded - 4 Wall
Termination: Solder
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Secondary Compatibility Factors:

Operating Temperature Range (minimum -55°C, maximum 125°C or broader)
Contact Length - Mating (within tolerance for board-to-cable/wire interface)
Contact Length - Post (within tolerance for through-hole solder joint formation)
Insulation Height (within tolerance for mechanical fit)
Contact Material and Finish (gold or tin plating acceptable for signal integrity)

Substitute parts may vary in fastening type (Push-Pull vs. Latch Holder), insulation material composition (LCP, PBT, PCT), contact finish specifications, and packaging format (Tube, Bulk, Tray) without affecting core electrical and mechanical function in standard applications.

Parameter Comparison

Parameter	HTST-105-05-G-D-RA	0702471051	09185105323	09185106321	09185106323	09185107323	09195106323	09195107323	1761682-3	2-1761605-3	75867-101LF
Manufacturer	Samtec Inc.	Molex	HARTING	HARTING	HARTING	HARTING	HARTING	HARTING	TE Connectivity	TE Connectivity	Amphenol ICC
Connector Type	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	10	10	10	10	10	10	10	10	10	10	10
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.250" (6.35mm)	0.240" (6.10mm)	0.242" (6.15mm)	0.240" (6.10mm)	0.242" (6.15mm)	0.242" (6.15mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.236" (6.00mm)
Contact Length - Post	0.230" (5.84mm)	0.120" (3.05mm)	0.114" (2.90mm)	0.177" (4.50mm)	0.114" (2.90mm)	0.114" (2.90mm)	0.114" (2.90mm)	0.114" (2.90mm)	0.114" (2.90mm)	0.102" (2.60mm)	0.120" (3.05mm)
Insulation Height	0.365" (9.27mm)	0.350" (8.89mm)	0.366" (9.30mm)	0.366" (9.30mm)	0.366" (9.30mm)	0.366" (9.30mm)	0.366" (9.30mm)	0.366" (9.30mm)	0.350" (8.89mm)	0.350" (8.89mm)	0.362" (9.20mm)
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold	Not Specified	Gold	Not Specified	Not Specified	Gold	Gold	Gold, GXT™
Contact Finish - Post	Gold	Tin	Tin	Not Specified	Not Specified	Not Specified	Not Specified	Not Specified	Tin	Tin	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Liquid Crystal Polymer (LCP)	Polybutylene Terephthalate (PBT), Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled	Polycyclohexylenedimethylene Terephthalate (PCT), Glass Filled	Polycyclohexylenedimethylene Terephthalate (PCT), Glass Filled	Polycyclohexylenedimethylene Terephthalate (PCT)	Polybutylene Terephthalate (PBT)	Thermoplastic, Glass Filled
Operating Temperature	-55°C ~ 125°C	Not Specified	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-65°C ~ 105°C	-65°C ~ 105°C	Not Specified
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring continued availability and regulatory conformance for new designs and production environments. The primary distinction between the HTST-105-05-G-D-RA and substitute options lies in fastening mechanism and contact post length specifications.

Push-Pull Fastening Group (Direct mechanical equivalent to HTST-105-05-G-D-RA):

0702471051 (Molex C-Grid 70247)
1761682-3 (TE Connectivity AMP-Latch)
2-1761605-3 (TE Connectivity AMP-Latch)
75867-101LF (Amphenol ICC Quickie™)

These parts share identical fastening mechanism with the main part, ensuring compatibility with mating connectors designed for push-pull engagement.

Latch Holder Fastening Group (Alternative fastening mechanism):

09185105323, 09185106321, 09185106323, 09185107323 (HARTING SEK series)
09195106323, 09195107323 (HARTING SEK series)

These parts employ latch holder fastening, requiring mating connectors with corresponding latch engagement features. Selection between push-pull and latch holder variants depends on the mating connector specification and application requirements.

Temperature Range Consideration: TE Connectivity parts (1761682-3, 2-1761605-3) operate within -65°C to 105°C, which does not extend to the full 125°C maximum of the HTST-105-05-G-D-RA. Applications requiring sustained operation above 105°C must use the main part or HARTING alternatives.

Contact Post Length Variation: Contact post length ranges from 0.102" to 0.230" across the substitute group. Selection must align with printed circuit board thickness and solder joint formation requirements. The HTST-105-05-G-D-RA specifies 0.230" post length; shorter post variants (0.102" to 0.120") suit thinner PCB assemblies, while longer posts (0.177" to 0.230") accommodate thicker boards.

Frequently Asked Questions (FAQ)

Q: Can I substitute a HARTING latch holder connector for the Samtec push-pull connector?

A: Latch holder and push-pull fastening mechanisms are mechanically distinct. Substitution requires that the mating connector (socket or receptacle) is designed for the corresponding fastening type. Direct mechanical interchange is not possible without changing the mating connector assembly.

Q: What is the significance of contact post length differences?

A: Contact post length determines the solder joint formation depth on the printed circuit board. Shorter posts (0.102" to 0.120") are suitable for thin PCBs (0.062" standard), while longer posts (0.177" to 0.230") accommodate thicker boards or applications requiring extended solder fillets. Post length selection must match the PCB thickness specification to ensure reliable solder joint integrity.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts carry ROHS3 Compliant or RoHS Compliant status. The 75867-101LF (Amphenol ICC) is marked RoHS Compliant without the "3" designation; verification with the manufacturer is recommended for applications with specific ROHS3 certification requirements.

Q: What is the difference between insulation materials (LCP, PBT, PCT)?

A: Liquid Crystal Polymer (LCP), Polybutylene Terephthalate (PBT), and Polycyclohexylenedimethylene Terephthalate (PCT) are thermoplastic materials with different thermal and mechanical properties. All materials listed meet UL94 V-0 flammability requirements. Material selection does not affect electrical performance in standard applications but may influence dimensional stability and cost. Consult application-specific requirements for material-dependent performance criteria.

Q: Can I use a substitute part with a different contact material (Copper Alloy vs. Phosphor Bronze)?

A: Both Copper Alloy and Phosphor Bronze contacts meet the electrical and mechanical requirements for this connector category. Contact material differences do not affect signal integrity or current-carrying capacity in standard applications. Selection may be driven by cost, availability, or specific application requirements.

Q: What packaging formats are available?

A: Substitute parts are supplied in Tube, Bulk, or Tray packaging. Packaging format does not affect connector function and is selected based on production volume and handling requirements. Tube packaging suits lower-volume applications, while Bulk and Tray formats support higher-volume manufacturing.

Q: Is the TE Connectivity temperature range limitation (-65°C to 105°C) a concern?

A: TE Connectivity parts do not extend to the 125°C maximum operating temperature of the HTST-105-05-G-D-RA. Applications requiring sustained operation above 105°C must specify the main part or HARTING alternatives that support the full -55°C to 125°C range.

Q: Are all parts suitable for board-to-cable/wire applications?

A: All listed parts are specified for board-to-cable/wire or board-to-board applications. The shrouded 4-wall construction and solder termination are consistent across all variants, ensuring compatibility with standard cable assembly and PCB mounting practices.

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