ICO-314-CTT DIP Socket 14-Position Equivalent & Substitute Parts

Part Overview

The ICO-314-CTT is a 14-position DIP socket manufactured by Samtec Inc., designed for through-hole mounting of dual inline package integrated circuits. This connector features a 0.3" (7.62mm) row spacing with 0.100" (2.54mm) pitch contacts, tin-plated beryllium copper mating contacts, and brass posts. The part is active in production with RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified when mechanical compatibility, electrical performance within specified parameters, and functional interchangeability are maintained across the connector interface.

Key Parameters

Parameter	Value
Number of Positions	14 (2 x 7)
Row Spacing	0.3" (7.62mm)
Pitch - Mating	0.100" (2.54mm)
Pitch - Post	0.100" (2.54mm)
Mounting Type	Through Hole
Contact Material - Mating	Beryllium Copper
Contact Material - Post	Brass
Operating Temperature Range	-55°C ~ 105°C
Current Rating	1 A
Contact Resistance	10mOhm
Termination	Solder
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the ICO-314-CTT is determined by strict equivalence in the following critical parameters: 14-position configuration, 0.3" row spacing, 0.100" mating and post pitch, through-hole solder termination, beryllium copper mating contacts, and brass post material. All identified substitutes maintain these core mechanical and electrical specifications. Variations in contact finish (tin versus gold), contact finish thickness, housing material composition, operating temperature upper limit, current rating, and termination post length are permitted within the substitute group, as these parameters do not affect mechanical fit or basic electrical function at the connector interface. All substitutes are active products with RoHS3 compliance status.

Parameter Comparison

Parameter	ICO-314-CTT (Samtec)	115-43-314-41-003000 (Mill-Max)	115-91-314-41-003000 (Mill-Max)	115-93-314-41-003000 (Mill-Max)
Manufacturer	Samtec Inc.	Mill-Max Manufacturing Corp.	Mill-Max Manufacturing Corp.	Mill-Max Manufacturing Corp.
Number of Positions	14 (2 x 7)	14 (2 x 7)	14 (2 x 7)	14 (2 x 7)
Row Spacing	0.3" (7.62mm)	0.3" (7.62mm)	0.3" (7.62mm)	0.3" (7.62mm)
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Pitch - Post	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Finish - Mating	Tin	Gold	Gold	Gold
Contact Material - Mating	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper
Contact Material - Post	Brass	Brass Alloy	Brass Alloy	Brass Alloy
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder
Operating Temperature Range	-55°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Current Rating	1 A	3 A	3 A	3 A
Contact Resistance	10mOhm	Not specified	10mOhm	Not specified
Termination Post Length	0.052" (1.32mm)	0.108" (2.74mm)	0.108" (2.74mm)	0.108" (2.74mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Active	RoHS non-compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All three Mill-Max substitutes (115-43-314-41-003000, 115-91-314-41-003000, and 115-93-314-41-003000) maintain mechanical and electrical compatibility with the ICO-314-CTT for 14-position DIP socket applications. Selection between these options depends on regulatory and compliance requirements specific to the end application.

For applications requiring RoHS3 compliance, 115-43-314-41-003000 and 115-91-314-41-003000 are suitable. The 115-93-314-41-003000 is RoHS non-compliant and should be selected only when regulatory exemptions apply or when legacy component specifications are required.

The 115-91-314-41-003000 provides the lowest profile design among the substitutes with documented contact resistance of 10mOhm, matching the original ICO-314-CTT specification. The 115-43-314-41-003000 offers higher current capacity at 3 A and gold-plated mating contacts with specified finish thickness of 30.0µin (0.76µm). All substitutes support extended operating temperature to 125°C, exceeding the original part's 105°C maximum.

Post length variation (0.108" versus 0.052") requires PCB design verification to confirm solder joint formation and clearance compatibility with board layout and component placement.

Frequently Asked Questions (FAQ)

Q: Can the Mill-Max 115-43-314-41-003000 directly replace the Samtec ICO-314-CTT?

A: Yes. Both parts maintain identical 14-position configuration, 0.3" row spacing, 0.100" pitch, through-hole solder termination, and beryllium copper mating contacts. The primary difference is contact finish (gold versus tin) and post length (0.108" versus 0.052"), which do not affect mechanical fit or basic electrical function. PCB design must accommodate the longer post length.

Q: What is the significance of the contact finish difference between tin and gold?

A: Contact finish affects corrosion resistance and long-term reliability in specific environmental conditions. Gold-plated contacts (115-43, 115-91, 115-93) provide enhanced corrosion resistance compared to tin-plated contacts (ICO-314-CTT). Both finishes are suitable for standard industrial applications. Selection depends on environmental exposure and application longevity requirements.

Q: Why do the Mill-Max substitutes have higher current ratings (3 A) than the original part (1 A)?

A: Current rating is determined by contact design and material composition. The higher rating in Mill-Max parts reflects their design capability and does not require modification to existing circuit designs. The original 1 A specification remains valid for the ICO-314-CTT application.

Q: Is the extended operating temperature range (-55°C ~ 125°C) of the substitutes a compatibility concern?

A: No. Extended temperature range is a superset of the original specification (-55°C ~ 105°C). Applications operating within the original temperature range are fully compatible with substitutes rated to 125°C.

Q: What impact does the longer termination post length have on PCB design?

A: Post length affects solder joint formation depth and clearance to adjacent components on the PCB. The 0.108" posts (Mill-Max substitutes) are longer than the 0.052" posts (ICO-314-CTT). PCB layout must be verified to confirm adequate clearance and proper solder joint formation with the longer posts.

Q: Are all substitutes RoHS compliant?

A: 115-43-314-41-003000 and 115-91-314-41-003000 are ROHS3 compliant. 115-93-314-41-003000 is RoHS non-compliant. Selection depends on regulatory requirements for the end application.

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