DIP640-001BLF Equivalent & Substitute Parts

Part Overview

The DIP640-001BLF is a 40-position DIP socket manufactured by Amphenol ICC (FCI) designed for IC and transistor applications. This through-hole component features gold-plated mating contacts with beryllium copper material and tin-plated brass posts. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	DIP640-001BLF
Manufacturer	Amphenol ICC (FCI)
Category	Sockets for ICs, Transistors
Type	DIP, 0.6" (15.24mm) Row Spacing
Number of Positions	40 (2 x 20)
Pitch - Mating	0.100" (2.54mm)
Pitch - Post	0.100" (2.54mm)
Contact Finish - Mating	Gold, 30.0µin (0.76µm)
Contact Finish - Post	Tin, 200.0µin (5.08µm)
Contact Material - Mating	Beryllium Copper
Contact Material - Post	Brass
Mounting Type	Through Hole
Features	Open Frame
Termination	Solder
Termination Post Length	0.125" (3.18mm)
Housing Material	Polycyclohexylenedimethylene Terephthalate (PCT), Polyester, Glass Filled
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8536.69.4040

Substitute Part Grouping Explanation

Substitution for the DIP640-001BLF is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

Number of Positions: 40 (2 x 20)
Type: DIP, 0.6" (15.24mm) Row Spacing
Pitch - Mating: 0.100" (2.54mm)
Pitch - Post: 0.100" (2.54mm)
Mounting Type: Through Hole
Termination: Solder
Termination Post Length: 0.125" (3.18mm)

Acceptable Variation Parameters:

Contact Finish - Mating: Gold (thickness may vary: 10.0µin to 30.0µin)
Contact Finish - Post: Tin or Tin-Lead (thickness may vary: 200.0µin standard)
Contact Material - Post: Brass or Brass Alloy
Housing Material: PCT Polyester with or without glass fill
Operating Temperature: -55°C ~ 125°C (when specified)
Current Rating: 3 A (when specified)

All substitute parts listed are manufactured by Mill-Max Manufacturing Corp., Series 101 and 110, and maintain active product status with RoHS3 compliance.

Parameter Comparison

Parameter	DIP640-001BLF	101-93-640-41-560000	110-11-640-41-001000	110-13-640-41-001000	110-13-640-41-801000	110-41-640-41-001000	110-43-640-41-001000	110-43-640-41-605000	110-43-640-41-801000	110-44-640-41-001000	110-91-640-41-001000
Manufacturer	Amphenol ICC (FCI)	Mill-Max	Mill-Max	Mill-Max	Mill-Max	Mill-Max	Mill-Max	Mill-Max	Mill-Max	Mill-Max	Mill-Max
Number of Positions	40 (2 x 20)	40 (2 x 20)	40 (2 x 20)	40 (2 x 20)	40 (2 x 20)	40 (2 x 20)	40 (2 x 20)	40 (2 x 20)	40 (2 x 20)	40 (2 x 20)	40 (2 x 20)
Type	DIP, 0.6" (15.24mm)	DIP, 0.6" (15.24mm)	DIP, 0.6" (15.24mm)	DIP, 0.6" (15.24mm)	DIP, 0.6" (15.24mm)	DIP, 0.6" (15.24mm)	DIP, 0.6" (15.24mm)	DIP, 0.6" (15.24mm)	DIP, 0.6" (15.24mm)	DIP, 0.6" (15.24mm)	DIP, 0.6" (15.24mm)
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)
Pitch - Post	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)
Contact Finish - Mating	Gold, 30.0µin	Gold, 30.0µin	Gold, 10.0µin	Gold, 30.0µin	Gold, 30.0µin	Gold, 10.0µin	Gold, 30.0µin	Gold, 30.0µin	Gold, 30.0µin	Tin, 100.0µin	Gold, 10.0µin
Contact Finish - Post	Tin, 200.0µin	Tin-Lead, 200.0µin	Gold, 10.0µin	Gold, 10.0µin	Gold, 10.0µin	Tin, 200.0µin	Tin, 200.0µin	Tin, 200.0µin	Tin, 200.0µin	Tin, 200.0µin	Tin-Lead, 200.0µin
Contact Material - Mating	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper
Contact Material - Post	Brass	Brass Alloy	Brass Alloy	Brass Alloy	Brass Alloy	Brass Alloy	Brass Alloy	Brass Alloy	Brass Alloy	Brass Alloy	Brass Alloy
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Features	Open Frame	Open Frame	Open Frame	Open Frame	Open Frame, Decoupling Capacitor	Open Frame	Open Frame	Open Frame	Open Frame, Decoupling Capacitor	Open Frame	Open Frame
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Termination Post Length	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)
Housing Material	PCT, Polyester, Glass Filled	PCT, Polyester	PCT, Polyester	PCT, Polyester	PCT, Polyester	PCT, Polyester	PCT, Polyester	PCT, Polyester	PCT, Polyester	PCT, Polyester	PCT, Polyester
Operating Temperature	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	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Current Rating	Not specified	3 A	3 A	3 A	3 A	3 A	3 A	3 A	3 A	3 A	3 A
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
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)

Engineering Selection Recommendations

All listed substitute parts maintain active product status and are manufactured by Mill-Max Manufacturing Corp., providing long-term availability and supply chain stability compared to the obsolete DIP640-001BLF.

For RoHS3 Compliance Requirements: Select from 101-93-640-41-560000, 110-11-640-41-001000, 110-13-640-41-001000, 110-13-640-41-801000, 110-41-640-41-001000, 110-43-640-41-001000, 110-43-640-41-605000, or 110-43-640-41-801000. These parts carry ROHS3 Compliant certification. Avoid 110-91-640-41-001000, which is RoHS non-compliant.

For Gold Post Finish: Select 110-11-640-41-001000, 110-13-640-41-001000, or 110-13-640-41-801000 for full gold plating on both mating and post contacts.

For Tin Post Finish (Matching Original): Select 110-41-640-41-001000, 110-43-640-41-001000, 110-43-640-41-605000, or 110-43-640-41-801000 for tin-plated posts matching the original DIP640-001BLF specification.

For Decoupling Capacitor Feature: Select 110-13-640-41-801000 or 110-43-640-41-801000 if integrated decoupling capacitor functionality is required.

For Contact Resistance Specification: Select 110-11-640-41-001000 or 110-43-640-41-605000, both rated at 10mOhm contact resistance.

All substitute parts share identical mechanical dimensions, pitch specifications, and through-hole termination compatibility with the original DIP640-001BLF.

Frequently Asked Questions (FAQ)

Q: Can I directly replace DIP640-001BLF with any of the listed Mill-Max substitutes?

A: Yes. All listed substitutes maintain the same 40-position DIP configuration, 0.6" row spacing, 0.100" pitch, and 0.125" termination post length. They are mechanically and electrically compatible for through-hole PCB mounting.

Q: What is the primary difference between the substitute parts?

A: Differences exist in contact finish specifications (gold vs. tin on mating and post surfaces), contact finish thickness, post material composition (brass vs. brass alloy), and optional features such as decoupling capacitors. All maintain the same core socket functionality.

Q: Which substitute should I select if my design requires RoHS3 compliance?

A: All substitutes except 110-91-640-41-001000 carry ROHS3 Compliant certification. The 110-91-640-41-001000 is RoHS non-compliant and should not be used in RoHS-regulated applications.

Q: Does contact finish thickness affect socket performance?

A: Contact finish thickness variations (10.0µin to 30.0µin for gold mating contacts, 200.0µin standard for post finishes) are within acceptable engineering tolerances for DIP socket applications and do not affect functional compatibility.

Q: Are there packaging differences among the substitutes?

A: The 101-93-640-41-560000 is supplied without specified packaging. All Mill-Max 110 series substitutes are supplied in Tube packaging. Confirm packaging requirements with your procurement specifications.

Q: What is the significance of the decoupling capacitor feature in 110-13-640-41-801000 and 110-43-640-41-801000?

A: The integrated decoupling capacitor provides localized noise filtering for IC power supply pins. This feature is optional and not present in the original DIP640-001BLF. Select these parts only if your design requires this functionality.

Q: Can I mix different substitute part numbers in the same design?

A: Yes, provided all selected parts meet your specific requirements for contact finish, compliance certifications, and operating conditions. Ensure consistency in contact resistance and current rating specifications across all sockets in your design.

Q: What is the operating temperature range for the substitutes?

A: All Mill-Max substitutes operate across -55°C to 125°C, providing extended temperature range support compared to the original part, which did not specify an operating temperature range.

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