S14B-EH Rectangular Connector: Equivalent & Substitute Parts

Part Overview

The S14B-EH is an active rectangular connector header manufactured by JST Sales America Inc., designed for through-hole, right-angle board-to-cable/wire applications. This 14-position connector operates at 3A current rating and 250V voltage rating, with a 0.098" (2.50mm) mating pitch. The connector features shrouded 3-wall design with press-fit and solder termination options, suitable for applications requiring reliable interconnection in standard operating environments. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when inventory requirements necessitate qualified alternatives.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	14
Number of Rows	1
Pitch - Mating	0.098" (2.50mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 3 Wall
Termination	Press-Fit, Solder
Current Rating	3A
Voltage Rating	250V
Operating Temperature	-25°C ~ 85°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the S14B-EH are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Connector Type & Contact Configuration: Header with male pin contacts
Position Count & Row Configuration: 14 positions in single row
Mating Pitch: 0.098" (2.50mm) spacing
Mounting & Orientation: Through hole, right-angle mounting
Shrouding Design: Shrouded 3-wall construction
Electrical Ratings: 3A current, 250V voltage
Termination Method: Press-fit and solder capable
Operating Temperature Range: -25°C ~ 85°C
Compliance Standards: UL94 V-0 flammability, ROHS3 compliance

The substitute part 1-440053-4 (TE Connectivity AMP Connectors) meets all critical parameters. Minor variations in contact post length (0.134" vs. 0.126") and fastening mechanism (friction lock vs. latch lock) do not affect functional compatibility in standard board-to-cable applications.

Parameter Comparison

Parameter	S14B-EH (JST)	1-440053-4 (TE Connectivity)
Manufacturer	JST Sales America Inc.	TE Connectivity AMP Connectors
Series	EH	High Performance Interconnect (HPI)
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	14	14
Number of Rows	1	1
Pitch - Mating	0.098" (2.50mm)	0.098" (2.50mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 3 Wall	Shrouded - 3 Wall
Termination	Press-Fit, Solder	Press-Fit, Solder
Contact Length - Mating	0.157" (4.00mm)	0.157" (4.00mm)
Contact Length - Post	0.126" (3.20mm)	0.134" (3.40mm)
Insulation Height	0.165" (4.20mm)	0.165" (4.20mm)
Contact Shape	Square	Square
Contact Finish - Mating	Tin	Tin
Contact Finish - Post	Tin	Tin
Contact Material	Brass	Brass
Insulation Material	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6
Operating Temperature	-25°C ~ 85°C	-25°C ~ 85°C
Current Rating	3A	3A
Voltage Rating	250V	250V
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Natural	Natural
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

Both the S14B-EH and 1-440053-4 are active products with equivalent electrical and mechanical specifications. Selection between these parts is based on availability and supply chain requirements:

S14B-EH (JST Sales America Inc.): Primary specification. Current inventory of 1,086 pieces. Latch lock fastening mechanism. Contact post length 0.126" (3.20mm).

1-440053-4 (TE Connectivity AMP Connectors): Qualified substitute. Current inventory of 10,046 pieces. Friction lock fastening mechanism. Contact post length 0.134" (3.40mm). REACH Unaffected status provided.

Both parts meet UL94 V-0 flammability requirements, ROHS3 compliance, and unlimited moisture sensitivity rating (MSL 1). The 0.008" (0.20mm) difference in contact post length does not affect functional compatibility in standard through-hole solder or press-fit applications. Selection should be based on inventory availability, lead time requirements, and design-specific fastening mechanism preference.

Frequently Asked Questions (FAQ)

Q: Can 1-440053-4 be used as a direct replacement for S14B-EH in existing designs?

A: Yes. Both connectors share identical mating pitch (0.098" / 2.50mm), position count (14), row configuration (1), mounting type (through hole, right angle), shrouding design (3-wall), electrical ratings (3A / 250V), and operating temperature range (-25°C ~ 85°C). The minor difference in contact post length (0.008" / 0.20mm) does not affect compatibility in standard board-to-cable applications.

Q: What is the difference between latch lock and friction lock fastening?

A: S14B-EH uses latch lock fastening, while 1-440053-4 uses friction lock. Both mechanisms secure the mated connector pair. Latch lock provides audible/tactile confirmation of engagement. Friction lock relies on contact pressure. Design requirements should determine which mechanism is appropriate for the application.

Q: Are both parts RoHS compliant?

A: Yes. Both S14B-EH and 1-440053-4 are ROHS3 compliant. The 1-440053-4 additionally carries REACH Unaffected status.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Can these connectors be used in automotive applications?

A: The 1-440053-4 is specified for automotive, general purpose, industrial, and medical applications. The S14B-EH specification does not list specific applications. Design validation should confirm suitability for the intended automotive environment.

Q: What termination methods are supported?

A: Both connectors support press-fit and solder termination methods, providing flexibility in assembly processes.

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