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Molex 0781271128 FFC, FPC Connector - Equivalent & Substitute Parts
Part Overview
The Molex 0781271128 is a 12-position FFC, FPC connector with vertical, single-sided contacts at 0.50mm pitch, designed for surface mount applications. This connector is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part operates within a 50V rating and -40°C to 85°C temperature range, with ROHS3 compliance and unlimited moisture sensitivity level.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | FFC, FPC - Flat Flexible Connector |
| Number of Positions | 12 |
| Pitch | 0.020" (0.50mm) |
| Mounting Type | Surface Mount (SMD) |
| Contact Configuration | Vertical - 1 Sided |
| Voltage Rating | 50V |
| Current Rating | 0.5A |
| Operating Temperature | -40°C to 85°C |
| FFC, FCB Thickness | 0.30mm |
| Height Above Board | 0.161" (4.10mm) |
| Termination | Solder |
| Contact Finish | Gold |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the Molex 0781271128 is determined by strict equivalence across the following critical parameters:
- 12-position connector configuration
- 0.50mm pitch spacing
- Vertical, single-sided contact orientation
- Surface mount termination method
- 0.30mm FFC, FCB thickness
- 4.10mm height above board
- 50V voltage rating
- -40°C to 85°C operating temperature range
- ROHS3 compliance
- Solder termination
Three substitute parts meet these core electrical and mechanical requirements: the Molex 0781271220 (direct manufacturer equivalent, active status), the Molex 0781191220 (parametric equivalent from the Easy-On 78119 series, active status), and the KYOCERA AVX 046214012010800+ (manufacturer-recommended alternative from the 6214 series, active status).
Parameter Comparison
| Parameter | 0781271128 (Main) | 0781271220 (Direct Equivalent) | 0781191220 (Parametric Equivalent) | 046214012010800+ (MFR Recommended) |
|---|---|---|---|---|
| Manufacturer | Molex | Molex | Molex | KYOCERA AVX |
| Product Status | Obsolete | Active | Active | Active |
| Number of Positions | 12 | 12 | 12 | 12 |
| Pitch | 0.020" (0.50mm) | 0.020" (0.50mm) | 0.020" (0.50mm) | 0.020" (0.50mm) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Contact Configuration | Vertical - 1 Sided | Vertical - 1 Sided | Vertical - 1 Sided | Vertical - 1 Sided |
| FFC, FCB Thickness | 0.30mm | 0.30mm | 0.30mm | 0.30mm |
| Height Above Board | 0.161" (4.10mm) | 0.161" (4.10mm) | 0.161" (4.10mm) | 0.161" (4.10mm) |
| Voltage Rating | 50V | 50V | 50V | 50V |
| Operating Temperature | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C |
| Current Rating | 0.5A | 0.5A | 0.5A | 0.4A |
| Contact Finish | Gold | Gold | Gold | Tin Copper |
| Termination | Solder | Solder | Solder | Solder |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Mating Cycles | 20 | 10 | 10 | Not specified |
Engineering Selection Recommendations
The Molex 0781271220 is the primary direct equivalent, maintaining active product status and full parameter alignment with the obsolete 0781271128. Both parts share the Easy-On 78127 series designation and identical electrical and mechanical specifications. The 0781271220 is available in Tape & Reel packaging with 16,635 units in stock.
The Molex 0781191220 serves as a parametric equivalent from the Easy-On 78119 series. All critical electrical and mechanical parameters align with the main part, with active product status and 1,003 units in stock. The primary distinction is the different base product number and series designation.
The KYOCERA AVX 046214012010800+ is a manufacturer-recommended alternative from the 6214 series. This part meets all core substitution criteria with active status and 929 units in stock. Notable differences include a 0.4A current rating (versus 0.5A), Tin Copper contact finish (versus Gold), and the inclusion of Slide Lock and Zero Insertion Force (ZIF) features. The contact finish difference and reduced current rating require evaluation against specific application requirements.
All three substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity level, consistent with the main part.
Frequently Asked Questions (FAQ)
Q: Can the Molex 0781271220 directly replace the obsolete 0781271128?
A: Yes. The 0781271220 is a direct equivalent with identical electrical and mechanical parameters, including 12 positions, 0.50mm pitch, 50V rating, 0.5A current capacity, and -40°C to 85°C operating range. Both parts are solder-terminated, surface mount connectors with 0.30mm FFC thickness and 4.10mm height above board.
Q: What is the difference between the Molex 0781271220 and 0781191220?
A: Both parts are parametrically equivalent with identical core specifications. The primary difference is the series designation: 0781271220 belongs to the Easy-On 78127 series, while 0781191220 belongs to the Easy-On 78119 series. Both are active products with full ROHS3 compliance.
Q: Is the KYOCERA AVX 046214012010800+ a suitable substitute?
A: The KYOCERA AVX part meets all critical substitution parameters for pitch, position count, voltage, temperature range, and mounting type. However, it has a 0.4A current rating versus the 0.5A of the main part, and uses Tin Copper contact finish instead of Gold. Applications requiring the full 0.5A capacity or Gold contact finish should use the Molex equivalents instead.
Q: What packaging options are available for these substitutes?
A: The Molex 0781271220 and 0781191220 are supplied in Tape & Reel (TR) packaging. Packaging information for the KYOCERA AVX 046214012010800+ is provided as Tape & Reel (TR).
Q: Are all substitute parts RoHS compliant?
A: Yes. All three substitute parts are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), matching the compliance profile of the main part.
Q: What is the mating cycle rating difference between the main part and substitutes?
A: The main part 0781271128 has a 20 mating cycle rating. The Molex substitutes (0781271220 and 0781191220) have 10 mating cycles. The KYOCERA AVX part does not specify a mating cycle rating. Applications with high mating cycle requirements should evaluate this parameter against specific use conditions.
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