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3M 100-028-000 DIP Socket 28-Position Equivalent & Substitute Parts
Part Overview
The 3M 100-028-000 is a 28-position DIP socket with 0.6" row spacing, designed for through-hole mounting of dual inline package integrated circuits. This component features gold-plated beryllium copper mating contacts and brass post terminals, rated for 1 A continuous current across an operating temperature range of -65°C to 125°C.
The 3M 100-028-000 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for legacy and new applications requiring 28-position DIP socket functionality.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 100-028-000 |
| Manufacturer | 3M |
| Category | Sockets for ICs, Transistors |
| Type | DIP, 0.6" (15.24mm) Row Spacing |
| Number of Positions | 28 (2 x 14) |
| Pitch - Mating | 0.100" (2.54mm) |
| Contact Finish - Mating | Gold |
| Contact Material - Mating | Beryllium Copper |
| Mounting Type | Through Hole |
| Termination | Solder |
| Operating Temperature | -65°C ~ 125°C |
| Current Rating | 1 A |
| Product Status | Obsolete |
| RoHS Status | RoHS non-compliant |
Substitute Part Grouping Explanation
Substitution of the 3M 100-028-000 is determined by strict equivalence in the following critical parameters:
- Position Count & Pitch: All substitute parts maintain 28 positions (2 x 14) with 0.100" (2.54mm) mating pitch and 0.6" row spacing
- Mounting Configuration: All substitutes are through-hole solder-terminated DIP sockets
- Mating Contact Material: All substitutes use beryllium copper mating contacts with gold plating
- Operating Temperature Range: Substitute parts operate within -55°C to 125°C, which encompasses the original -65°C to 125°C specification at the upper end
- Mechanical Compatibility: Termination post length, housing material, and form factor are compatible across all listed substitutes
Substitute parts are grouped by manufacturer (Mill-Max Manufacturing Corp.) and series designation (110 and 111 series). Variations in post finish (gold, tin, or tin-lead), post finish thickness, current rating (upgraded to 3 A), and RoHS compliance status do not affect mechanical or electrical interchangeability for standard DIP socket applications.
Parameter Comparison
| Parameter | 3M 100-028-000 | Mill-Max 110-11-628-41-001000 | Mill-Max 110-13-628-41-801000 | Mill-Max 110-43-628-41-001000 | Mill-Max 110-43-628-41-605000 | Mill-Max 110-43-628-41-801000 | Mill-Max 110-83-628-41-530000 | Mill-Max 110-91-628-41-001000 | Mill-Max 110-93-628-41-605000 | Mill-Max 110-93-628-41-801000 | Mill-Max 111-41-628-41-001000 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of Positions | 28 (2 x 14) | 28 (2 x 14) | 28 (2 x 14) | 28 (2 x 14) | 28 (2 x 14) | 28 (2 x 14) | 28 (2 x 14) | 28 (2 x 14) | 28 (2 x 14) | 28 (2 x 14) | 28 (2 x 14) |
| 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) |
| Contact Finish - Mating | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold |
| 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 |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Termination | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder |
| Operating Temperature | -65°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 | -55°C ~ 125°C |
| Current Rating (Amps) | 1 A | 3 A | 3 A | 3 A | 3 A | 3 A | 3 A | 3 A | 3 A | 3 A | 3 A |
| 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 Material - Post | Brass | Brass Alloy | Brass Alloy | Brass Alloy | Brass Alloy | Brass Alloy | Brass Alloy | Brass Alloy | Brass Alloy | Brass Alloy | Brass Alloy |
| Housing Material | Polyphenylene Sulfide (PPS), Glass Filled | Polycyclohexylenedimethylene Terephthalate (PCT), Polyester | Polycyclohexylenedimethylene Terephthalate (PCT), Polyester | Polycyclohexylenedimethylene Terephthalate (PCT), Polyester | Polycyclohexylenedimethylene Terephthalate (PCT), Polyester | Polycyclohexylenedimethylene Terephthalate (PCT), Polyester | Polycyclohexylenedimethylene Terephthalate (PCT), Polyester | Polycyclohexylenedimethylene Terephthalate (PCT), Polyester | Polycyclohexylenedimethylene Terephthalate (PCT), Polyester | Polycyclohexylenedimethylene Terephthalate (PCT), Polyester | Polycyclohexylenedimethylene Terephthalate (PCT), Polyester |
| Termination Post Length | 0.126" (3.20mm) | 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) | 0.170" (4.32mm) |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Obsolete | Active | Active | Active | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | RoHS non-compliant | RoHS non-compliant | RoHS non-compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Active Status Substitutes (Recommended for New Designs)
Mill-Max 110-11-628-41-001000, 110-13-628-41-801000, 110-43-628-41-001000, 110-43-628-41-605000, 110-43-628-41-801000, 110-91-628-41-001000, 110-93-628-41-605000, 110-93-628-41-801000, and 111-41-628-41-001000 are all active products with current manufacturing support and availability. These parts provide direct mechanical and electrical compatibility with the 3M 100-028-000.
RoHS3 Compliant Options
For applications requiring RoHS3 compliance, select from: 110-11-628-41-001000, 110-13-628-41-801000, 110-43-628-41-001000, 110-43-628-41-605000, 110-43-628-41-801000, 110-83-628-41-530000, or 111-41-628-41-001000. These parts meet current environmental and regulatory requirements.
RoHS Non-Compliant Options
Mill-Max 110-91-628-41-001000, 110-93-628-41-605000, and 110-93-628-41-801000 maintain RoHS non-compliant status, suitable for legacy applications or where RoHS compliance is not required.
Post Finish Considerations
- Gold Post Finish: 110-11-628-41-001000 (10.0µin thickness)
- Tin Post Finish: 110-43-628-41-001000, 110-43-628-41-605000, 111-41-628-41-001000
- Tin-Lead Post Finish: 110-83-628-41-530000, 110-91-628-41-001000, 110-93-628-41-605000, 110-93-628-41-801000
Decoupling Capacitor Feature
Mill-Max 110-13-628-41-801000, 110-43-628-41-801000, and 110-93-628-41-801000 include integrated decoupling capacitor functionality for enhanced signal integrity in high-speed applications.
Extended Post Length
Mill-Max 111-41-628-41-001000 features 0.170" (4.32mm) termination post length, compared to 0.125" (3.18mm) standard length, for applications requiring deeper PCB penetration or specific assembly requirements.
Frequently Asked Questions (FAQ)
Q: Can I directly replace the 3M 100-028-000 with any Mill-Max substitute?
A: Yes. All listed Mill-Max substitutes maintain identical 28-position DIP configuration, 0.100" mating pitch, 0.6" row spacing, through-hole solder termination, and beryllium copper gold-plated mating contacts. Mechanical and electrical interchangeability is confirmed across all substitutes.
Q: What is the difference between the various Mill-Max 110 series options?
A: Mill-Max 110 series variants differ in post finish material (gold, tin, or tin-lead), post finish thickness, and presence of integrated decoupling capacitors. The base series number (110-11, 110-13, 110-43, 110-83, 110-91, 110-93) indicates specific contact and housing configurations. All maintain the same 28-position DIP socket form factor and mating interface.
Q: Why do substitute parts have a higher current rating (3 A vs. 1 A)?
A: The 3 A current rating on Mill-Max substitutes reflects improved contact design and material specifications compared to the original 3M 100-028-000. This higher rating provides additional design margin and does not affect compatibility. Applications requiring only 1 A operation remain fully supported.
Q: Is the operating temperature range difference significant?
A: The 3M 100-028-000 operates from -65°C to 125°C, while Mill-Max substitutes operate from -55°C to 125°C. For applications requiring operation below -55°C, the original 3M part or equivalent low-temperature rated alternatives must be specified. For standard industrial and commercial temperature ranges, the -55°C to 125°C specification is sufficient.
Q: What is the difference between the 110 and 111 series?
A: The Mill-Max 111-41-628-41-001000 (111 series) features an extended termination post length of 0.170" (4.32mm) compared to 0.125" (3.18mm) for 110 series parts. This extended length accommodates specific PCB thickness or assembly process requirements. Mating interface and socket functionality remain identical.
Q: Should I select a RoHS3 compliant or non-compliant substitute?
A: For new designs and applications subject to environmental regulations, RoHS3 compliant options (110-11-628-41-001000, 110-13-628-41-801000, 110-43-628-41-001000, 110-43-628-41-605000, 110-43-628-41-801000, 110-83-628-41-530000, 111-41-628-41-001000) are required. RoHS non-compliant options (110-91-628-41-001000, 110-93-628-41-605000, 110-93-628-41-801000) are suitable only for legacy applications or where regulatory exemptions apply.
Q: What does the decoupling capacitor feature provide?
A: Mill-Max parts 110-13-628-41-801000, 110-43-628-41-801000, and 110-93-628-41-801000 integrate decoupling capacitors within the socket housing. This feature reduces high-frequency noise and improves signal integrity in digital circuits, particularly beneficial for high-speed IC applications. Standard non-capacitor versions provide equivalent mechanical compatibility without this enhancement.
Q: Are there inventory considerations for substitute selection?
A: Current inventory levels vary by part number. Mill-Max 110-43-628-41-001000 maintains the highest inventory (2245 pcs), followed by 110-13-628-41-801000 (1239 pcs) and 110-93-628-41-801000 (1177 pcs). For applications with extended lead times or high-volume requirements, these high-inventory options provide supply chain advantages.
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