HTST-110-04-L-D-LA Equivalent & Substitute Parts

Part Overview

The HTST-110-04-L-D-LA is a rectangular connector header manufactured by Samtec Inc., designed for through-hole, right-angle board-to-cable/wire applications. This shrouded 20-position connector with 2.54mm pitch and kinked pin solder termination is classified as Active product status. Equivalent and substitute parts are identified when identical electrical and mechanical parameters are maintained across alternative series offerings from the same manufacturer.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	20
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Kinked Pin, Solder
Fastening Type	Push-Pull
Contact Length - Mating	0.250" (6.35mm)
Contact Length - Post	0.130" (3.30mm)
Insulation Height	0.365" (9.27mm)
Contact Shape	Square
Contact Finish - Mating	Gold
Contact Finish Thickness - Mating	10.0µin (0.25µm)
Contact Finish - Post	Tin
Contact Material	Phosphor Bronze
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
Current Rating	3.4A per Contact
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the HTST-110-04-L-D-LA are identified based on strict equivalence of the following critical parameters:

Connector type, contact type, and gender (Header, Male Pin)
Position count and row configuration (20 positions, 2 rows)
Pitch specifications (0.100" mating pitch, 0.100" row spacing)
Mounting orientation and method (Through Hole, Right Angle)
Shrouding configuration (Shrouded - 4 Wall)
Termination method (Kinked Pin, Solder)
Fastening mechanism (Push-Pull)
Contact dimensions and materials (0.250" mating length, 0.130" post length, Phosphor Bronze)
Contact finish specifications (Gold mating, Tin post)
Operating temperature range (-55°C ~ 125°C)
Flammability compliance (UL94 V-0)
Current rating (3.4A per Contact)
Regulatory compliance (ROHS3 Compliant)

The substitute parts TSS-110-04-L-D-LA and TST-110-04-L-D-LA maintain all critical electrical and mechanical parameters. Variations in insulation material and color do not affect functional substitution within the specified parameter set.

Parameter Comparison

Parameter	HTST-110-04-L-D-LA	TSS-110-04-L-D-LA	TST-110-04-L-D-LA
Manufacturer	Samtec Inc.	Samtec Inc.	Samtec Inc.
Series	Flex Stack, HTST	Flex Stack, TSS	Flex Stack, TST
Connector Type	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin
Number of Positions	20	20	20
Number of Rows	2	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	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
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Kinked Pin, Solder	Kinked Pin, Solder	Kinked Pin, Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.250" (6.35mm)	0.250" (6.35mm)	0.250" (6.35mm)
Contact Length - Post	0.130" (3.30mm)	0.130" (3.30mm)	0.130" (3.30mm)
Insulation Height	0.365" (9.27mm)	0.365" (9.27mm)	0.365" (9.27mm)
Contact Shape	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold
Contact Finish Thickness - Mating	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)
Contact Finish - Post	Tin	Tin	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Liquid Crystal Polymer (LCP)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT), Glass Filled
Insulation Color	Natural	Black	Black
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Current Rating	3.4A per Contact	Not specified	3.4A per Contact
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active
Packaging	Tube	Tube	Tube

Engineering Selection Recommendations

All three parts—HTST-110-04-L-D-LA, TSS-110-04-L-D-LA, and TST-110-04-L-D-LA—maintain Active product status and ROHS3 compliance. Selection between these rectangular connectors is determined by insulation material requirements and application-specific thermal or mechanical constraints.

The HTST-110-04-L-D-LA features Liquid Crystal Polymer (LCP) insulation with natural color. The TSS-110-04-L-D-LA and TST-110-04-L-D-LA employ Polybutylene Terephthalate (PBT) insulation with black color, with the TST variant incorporating glass reinforcement. All parts share identical electrical performance, contact configuration, and compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can TSS-110-04-L-D-LA or TST-110-04-L-D-LA be used as direct replacements for HTST-110-04-L-D-LA?

A: Yes. All three parts maintain identical connector type, position count, pitch, mounting method, termination, contact materials, and operating temperature range. Insulation material differences do not affect functional substitution within the specified parameter set.

Q: What is the difference between the insulation materials used in these parts?

A: HTST-110-04-L-D-LA uses Liquid Crystal Polymer (LCP) with natural color. TSS-110-04-L-D-LA uses Polybutylene Terephthalate (PBT) with black color. TST-110-04-L-D-LA uses glass-filled Polybutylene Terephthalate (PBT) with black color. All materials meet UL94 V-0 flammability requirements and operate across -55°C to 125°C.

Q: Are there differences in current rating between these parts?

A: HTST-110-04-L-D-LA and TST-110-04-L-D-LA are rated for 3.4A per contact. TSS-110-04-L-D-LA does not specify a current rating in the provided data.

Q: Do all parts use the same contact finish specifications?

A: Yes. All three parts feature gold-plated mating contacts at 10.0µin (0.25µm) thickness and tin-plated posts.

Q: Are these parts available in the same packaging?

A: Yes. All three parts are supplied in tube packaging.

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