Request Quote
(Ships tomorrow)
Phoenix Contact 1780503 Terminal Block Plug - Equivalent & Substitute Parts
Part Overview
The Phoenix Contact 1780503 is an 8-position terminal block plug with female sockets, 0.098" (2.50mm) pitch, designed for 180° free-hanging in-line applications. This component features IDC (Insulation Displacement Connector) termination and operates at 2A IEC current rating with 160V IEC voltage rating.
The 1780503 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system compatibility and ensure continued availability for applications requiring this connector type and electrical specification.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 1780503 |
| Manufacturer | Phoenix Contact |
| Category | Terminal Blocks |
| Series | COMBICON HD |
| Type | Plug, Female Sockets |
| Number of Positions | 8 |
| Pitch | 0.098" (2.50mm) |
| Plug Wire Entry | 180° |
| Mounting Type | Free Hanging (In-Line) |
| Termination Style | IDC |
| Current - IEC | 2A |
| Voltage - IEC | 160V |
| Wire Gauge Range | 26 AWG / 0.14mm² |
| Color | Black |
| Contact Mating Finish | Tin |
| Product Status | Obsolete |
| RoHS Status | RoHS Compliant |
Substitute Part Grouping Explanation
Substitution of the Phoenix Contact 1780503 is determined by the following critical parameters:
Mechanical Compatibility:
- 8-position connector configuration
- 0.098" (2.50mm) pitch spacing
- 180° free-hanging in-line orientation
- Female socket type
Electrical Compatibility:
- Current rating must equal or exceed 2A IEC
- Voltage rating must equal or exceed 160V IEC
- Wire gauge compatibility with 26 AWG / 0.14mm²
Functional Compatibility:
- Termination method must support the intended application
- Contact mating finish (tin) for corrosion resistance
- Black color for standard identification
The Phoenix Contact 1778890 meets these substitution criteria through equivalent mechanical dimensions, superior electrical ratings, and active product status with enhanced termination technology.
Parameter Comparison
| Parameter | 1780503 (Main Part) | 1778890 (Substitute) |
|---|---|---|
| Manufacturer | Phoenix Contact | Phoenix Contact |
| Type | Plug, Female Sockets | Plug, Female Sockets |
| Number of Positions | 8 | 8 |
| Pitch | 0.098" (2.50mm) | 0.098" (2.50mm) |
| Plug Wire Entry | 180° | 180° |
| Mounting Type | Free Hanging (In-Line) | Free Hanging (In-Line) |
| Termination Style | IDC | Screwless - Spring Cage, Tension Clamp |
| Current - IEC | 2A | 6A |
| Voltage - IEC | 160V | 320V |
| Wire Gauge Range | 26 AWG / 0.14mm² | 20-26 AWG / 0.14-0.5mm² |
| Color | Black | Black |
| Contact Mating Finish | Tin | Tin |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
The Phoenix Contact 1778890 is a direct functional substitute for the obsolete 1780503. Both components share identical mechanical interfaces (8-position, 2.50mm pitch, 180° orientation) and are manufactured by the same supplier within the COMBICON product family.
The 1778890 provides enhanced electrical performance with 6A IEC current rating and 320V IEC voltage rating, exceeding the 1780503 specifications. This superior rating ensures compatibility with applications originally designed for the 1780503 without electrical derating.
The 1778890 features Screwless Spring Cage termination technology compared to the 1780503 IDC termination. Both termination methods are industry-standard approaches; selection depends on assembly process requirements and connector mating cycles.
The 1778890 maintains RoHS3 compliance and tin contact mating finish, ensuring environmental and corrosion resistance standards equivalent to the original component. Active product status guarantees long-term availability and supply chain continuity.
Frequently Asked Questions (FAQ)
Q: Can the 1778890 directly replace the 1780503 in existing applications?
A: Yes. Both components share identical mechanical dimensions (8-position, 2.50mm pitch, 180° free-hanging orientation) and female socket configuration. The 1778890 electrical ratings (6A IEC, 320V IEC) exceed the 1780503 requirements (2A IEC, 160V IEC), ensuring full compatibility.
Q: What is the difference between IDC and Screwless Spring Cage termination?
A: IDC (Insulation Displacement Connector) termination pierces wire insulation during insertion. Screwless Spring Cage termination uses tension clamp technology for wire retention. Both methods provide secure electrical connections; selection depends on assembly equipment and connector cycle requirements.
Q: Are there wire gauge compatibility considerations?
A: The 1780503 accepts 26 AWG / 0.14mm² wire. The 1778890 accepts 20-26 AWG / 0.14-0.5mm² wire. Applications using 26 AWG wire are fully compatible. Applications requiring larger wire gauges (20-24 AWG) benefit from the 1778890 expanded range.
Q: Does the 1778890 maintain the same color and contact finish?
A: Yes. Both components feature black housing and tin contact mating finish for consistent identification and corrosion resistance.
Q: What is the inventory status of these parts?
A: The 1780503 (obsolete) has 858 pieces in stock. The 1778890 (active) has 1015 pieces in stock, providing superior long-term availability.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts