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Phoenix Contact 1770474 Terminal Block - Equivalent & Substitute Parts
Part Overview
The Phoenix Contact 1770474 is a 3-position wire-to-board terminal block with 10mm pitch, designed for horizontal mounting through PCB holes. This component features screwless spring cage termination with lever actuation and is housed in green polyamide material. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 1770474 |
| Manufacturer | Phoenix Contact |
| Category | Terminal Blocks |
| Number of Positions | 3 |
| Pitch | 0.394" (10.00mm) |
| Mating Orientation | Horizontal with Board |
| Wire Gauge | 4-18 AWG |
| Mounting Type | Through Hole |
| Wire Termination | Screwless - Spring Cage, Tension Clamp |
| Housing Material | Polyamide (PA), Nylon |
| Color | Green |
| Product Status | Obsolete |
| RoHS Status | RoHS Compliant |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the Phoenix Contact 1770474 is determined by strict alignment of the following critical parameters:
- Position Count & Pitch: 3 positions at 0.394" (10.00mm) spacing
- Mounting Configuration: Horizontal orientation with through-hole PCB mounting
- Wire Gauge Compatibility: 4-18 AWG acceptance range
- Termination Method: Screwless spring-based wire connection with lever actuation
- Housing Material & Color: Polyamide construction in green
- Regulatory Compliance: RoHS compliance and MSL rating
The Phoenix Contact 1119811 meets all these criteria and qualifies as a direct functional equivalent.
Parameter Comparison
| Parameter | 1770474 (Main Part) | 1119811 (Substitute) |
|---|---|---|
| Manufacturer | Phoenix Contact | Phoenix Contact |
| Category | Terminal Blocks | Terminal Blocks |
| Number of Positions | 3 | 3 |
| Pitch | 0.394" (10.00mm) | 0.394" (10.00mm) |
| Mating Orientation | Horizontal with Board | Horizontal with Board |
| Wire Gauge | 4-18 AWG | 4-18 AWG |
| Mounting Type | Through Hole | Through Hole |
| Wire Termination | Screwless - Spring Cage, Tension Clamp | Screwless - Leg Spring, Push-In Spring |
| Housing Material | Polyamide (PA), Nylon | Polyamide (PA), Nylon |
| Color | Green | Green |
| Features | Interlocking (Side), Lever Actuated | Lever Actuated |
| Product Status | Obsolete | Active |
| Operating Temperature | Not specified | -40°C ~ 105°C |
| RoHS Status | RoHS Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
The Phoenix Contact 1119811 is the qualified substitute for the obsolete 1770474 based on the following engineering criteria:
Functional Equivalence: Both parts maintain identical position count, pitch spacing, wire gauge range, mounting orientation, and housing material specifications. The 10mm pitch and 3-position configuration ensure direct PCB footprint compatibility.
Regulatory Compliance: The 1119811 carries ROHS3 compliance, exceeding the RoHS compliance of the original part. Both components maintain MSL rating 1, indicating no moisture sensitivity restrictions.
Product Status Advantage: The 1119811 is active in production, ensuring long-term availability and supply chain stability compared to the obsolete 1770474.
Termination Compatibility: While the 1770474 specifies spring cage tension clamp termination and the 1119811 uses leg spring push-in spring termination, both employ screwless spring-based mechanisms with lever actuation, maintaining functional wire connection reliability within the specified 4-18 AWG range.
Operating Temperature: The 1119811 provides specified operating temperature range (-40°C ~ 105°C), offering defined thermal performance parameters absent from the original part specification.
Frequently Asked Questions (FAQ)
Q: Can the 1119811 be used as a direct replacement for the 1770474 in existing PCB designs?
A: Yes. Both parts share identical pitch (10mm), position count (3), mounting type (through-hole horizontal), and wire gauge range (4-18 AWG). PCB footprints are compatible without modification.
Q: What is the difference between the spring cage termination and push-in spring termination?
A: Both employ screwless spring-based wire connection mechanisms. The 1770474 uses tension clamp spring cages, while the 1119811 uses leg spring push-in springs. Both methods provide equivalent wire retention and electrical contact within the specified wire gauge range and are actuated by lever mechanisms.
Q: Why is the 1770474 listed as obsolete?
A: Obsolete status indicates the part is no longer manufactured by Phoenix Contact. The 1119811 represents the active production equivalent, ensuring continued availability for replacement and new applications.
Q: Are there any compliance differences between the two parts?
A: The 1119811 carries ROHS3 compliance versus RoHS compliance for the 1770474. ROHS3 represents current regulatory requirements. Both maintain MSL rating 1 with unlimited moisture sensitivity protection.
Q: Does the 1119811 provide operating temperature specifications?
A: Yes. The 1119811 specifies -40°C ~ 105°C operating temperature range. The 1770474 does not provide this specification. If thermal performance is critical to your application, the 1119811 offers defined operating parameters.
Q: What packaging is available for the 1119811?
A: The 1119811 is supplied in box packaging, with 879 pieces available in current inventory as new original stock.
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