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SMM-120-02-F-D-P-TR Equivalent & Substitute Parts
Part Overview
The SMM-120-02-F-D-P-TR is a 40-position receptacle connector from Samtec Inc.'s Tiger Eye™ SMM series, designed for surface mount board-to-board or cable applications. This connector features a 0.079" (2.00mm) pitch with gold-plated mating contacts and is rated for 3.2A per contact at 350VAC. The part is currently active in production with full inventory availability. Alternative models within the same series may be required due to specific fastening type requirements, application constraints, or supply chain considerations while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SMM-120-02-F-D-P-TR |
| Manufacturer | Samtec Inc. |
| Series | Tiger Eye™ SMM |
| Connector Type | Receptacle |
| Number of Positions | 40 |
| Pitch - Mating | 0.079" (2.00mm) |
| Number of Rows | 2 |
| Mounting Type | Surface Mount |
| Fastening Type | Push-Pull |
| Current Rating | 3.2A per Contact |
| Voltage Rating | 350VAC |
| Operating Temperature | -55°C ~ 125°C |
| Contact Finish - Mating | Gold |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
The SMM-120-02-F-D-P-TR has one identified substitute within the Tiger Eye™ SMM series: SMM-120-02-F-D-K-TR. Substitution eligibility is determined by the following critical parameters that must remain identical:
- Number of positions: 40
- Pitch - Mating: 0.079" (2.00mm)
- Number of rows: 2
- Row spacing - mating: 0.079" (2.00mm)
- Connector type: Receptacle
- Contact type: Female Socket
- Mounting type: Surface Mount
- Termination: Solder
- Contact finish - mating: Gold
- Current rating: 3.2A per Contact
- Voltage rating: 350VAC
- Operating temperature range: -55°C ~ 125°C
- Material flammability rating: UL94 V-0
- Insulation material: Liquid Crystal Polymer (LCP)
- Contact material: Beryllium Copper
The substitute part differs only in fastening type designation (K versus P variant), while maintaining full electrical and mechanical compatibility with the original specification.
Parameter Comparison
| Parameter | SMM-120-02-F-D-P-TR | SMM-120-02-F-D-K-TR |
|---|---|---|
| Manufacturer | Samtec Inc. | Samtec Inc. |
| Series | Tiger Eye™ SMM | Tiger Eye™ SMM |
| Connector Type | Receptacle | Receptacle |
| Number of Positions | 40 | 40 |
| Pitch - Mating | 0.079" (2.00mm) | 0.079" (2.00mm) |
| Number of Rows | 2 | 2 |
| Row Spacing - Mating | 0.079" (2.00mm) | 0.079" (2.00mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Termination | Solder | Solder |
| Fastening Type | Push-Pull | Push-Pull |
| Contact Finish - Mating | Gold | Gold |
| Contact Finish Thickness - Mating | 3.00µin (0.076µm) | 3.00µin (0.076µm) |
| Insulation Color | Black | Black |
| Insulation Height | 0.140" (4.66mm) | 0.140" (4.66mm) |
| Current Rating (Amps) | 3.2A per Contact | 3.2A per Contact |
| Voltage Rating | 350VAC | 350VAC |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 |
| Contact Finish - Post | Tin | Tin |
| Insulation Material | Liquid Crystal Polymer (LCP) | Liquid Crystal Polymer (LCP) |
| Contact Shape | Square | Square |
| Contact Material | Beryllium Copper | Beryllium Copper |
| Base Product Number | SMM-120 | SMM-120 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) |
| Product Status | Active | Active |
Engineering Selection Recommendations
Both the SMM-120-02-F-D-P-TR and SMM-120-02-F-D-K-TR are active production parts from Samtec Inc. with identical electrical and mechanical specifications. Both parts are ROHS3 compliant and carry UL94 V-0 flammability certification. Selection between these parts should be based on application-specific fastening requirements and design constraints, as both maintain full compatibility across all critical electrical parameters including current rating, voltage rating, and operating temperature range. Inventory availability may also influence part selection, with SMM-120-02-F-D-K-TR currently showing higher stock levels (1281 Pcs versus 832 Pcs).
Frequently Asked Questions (FAQ)
Q: Are SMM-120-02-F-D-P-TR and SMM-120-02-F-D-K-TR electrically interchangeable?
A: Yes. Both parts are identical in electrical specifications, including current rating (3.2A per contact), voltage rating (350VAC), and operating temperature range (-55°C ~ 125°C). The parts differ only in fastening type designation within the same product family.
Q: What determines substitution eligibility for these connectors?
A: Substitution is valid when the following parameters remain constant: number of positions (40), pitch (0.079" / 2.00mm), number of rows (2), connector type (receptacle), contact type (female socket), mounting type (surface mount), termination method (solder), contact finish (gold), and all electrical ratings. Both listed parts meet these criteria.
Q: Do both parts use the same packaging format?
A: Yes. Both SMM-120-02-F-D-P-TR and SMM-120-02-F-D-K-TR are supplied in Tape & Reel (TR) packaging, suitable for automated pick-and-place assembly processes.
Q: Are there any compliance differences between the substitute parts?
A: No. Both parts carry identical certifications: ROHS3 compliance, UL94 V-0 flammability rating, and Moisture Sensitivity Level 1 (Unlimited). Both are active production parts with no known end-of-life status.
Q: What is the contact material composition?
A: Both parts use beryllium copper contacts with gold plating (3.00µin / 0.076µm thickness) on the mating surface and tin plating on the post termination.
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