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TE Connectivity 1546111-3 Terminal Block Header Equivalent & Substitute Parts
Part Overview
The TE Connectivity 1546111-3 is a 3-position terminal block header with male pins, shrouded on 4 sides, featuring 0.200" (5.08mm) pitch vertical through-hole mounting. This component is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to support ongoing design requirements and procurement continuity where the original part is no longer actively manufactured.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 1546111-3 |
| Manufacturer | TE Connectivity AMP Connectors |
| Category | Terminal Blocks |
| Number of Positions | 3 |
| Pitch | 0.200" (5.08mm) |
| Header Orientation | Vertical |
| Type | Header, Male Pins, Shrouded (4 Side) |
| Mounting Type | Through Hole |
| Termination Style | Solder |
| Current - UL | 15 A |
| Voltage - UL | 300 V |
| Operating Temperature | -40°C ~ 110°C |
| Contact Mating Finish | Tin |
| Material Flammability Rating | UL94 V-0 |
| Contact Material | Copper Alloy |
| Housing Material | Polyamide (PA66), Nylon 6/6 |
| Contact Tail Length | 0.138" (3.50mm) |
| Insulation Height | 0.472" (12.00mm) |
| RoHS Status | ROHS3 Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the TE Connectivity 1546111-3 terminal block header is determined by the following critical parameters:
Primary Matching Criteria:
- Number of Positions: 3
- Pitch: 0.200" (5.08mm) or 0.197" (5.00mm)
- Header Orientation: Vertical
- Type: Header, Male Pins, Shrouded (4 Side)
- Mounting Type: Through Hole
- Termination Style: Solder
- Current - UL: 15 A minimum
- Voltage - UL: 300 V minimum
- Material Flammability Rating: UL94 V-0
- Operating Temperature Range: -40°C minimum to 110°C maximum
Direct Equivalents maintain identical pitch (5.08mm), shrouding configuration (4 side), and all electrical specifications. These parts are fully interchangeable without design modification.
Similar Substitutes may vary in pitch (5.00mm vs 5.08mm), contact tail length, contact mating finish, or operating temperature range. These parts require mechanical and electrical verification for compatibility with the original application.
Parameter Comparison
| Parameter | 1546111-3 (Main) | 1776147-3 (Direct) | 0395311003 (Similar) | 0395310003 (Similar) | 14120317001000 (Similar) | 1755749 (Similar) |
|---|---|---|---|---|---|---|
| Manufacturer | TE Connectivity | TE Connectivity | Molex | Molex | HARTING | Phoenix Contact |
| Number of Positions | 3 | 3 | 3 | 3 | 3 | 3 |
| Pitch | 0.200" (5.08mm) | 0.200" (5.08mm) | 0.200" (5.08mm) | 0.200" (5.08mm) | 0.200" (5.08mm) | 0.200" (5.08mm) |
| Header Orientation | Vertical | Vertical | Vertical | Vertical | Vertical | Vertical |
| Type | Header, Male Pins, Shrouded (4 Side) | Header, Male Pins, Shrouded (4 Side) | Header, Male Pins, Shrouded (4 Side) | Header, Male Pins, Shrouded (2 Side) | Header, Male Pins, Shrouded (4 Side) | Header, Male Pins, Shrouded (4 Side) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Termination Style | Solder | Solder | Solder | Solder | Solder | Solder |
| Current - UL | 15 A | 15 A | 15 A | 15 A | 15 A | 12 A |
| Voltage - UL | 300 V | 300 V | 300 V | 300 V | 600 V | 300 V |
| Operating Temperature | -40°C ~ 110°C | -40°C ~ 110°C | -40°C ~ 105°C | -40°C ~ 105°C | -40°C ~ 110°C | - |
| Contact Mating Finish | Tin | Tin | Tin | Tin | Tin | Tin |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 |
| Contact Material | Copper Alloy | Copper Alloy | Brass | Brass | Copper Alloy | - |
| Housing Material | Polyamide (PA66), Nylon 6/6 | Polyamide (PA), Nylon | Polyamide (PA66), Nylon 6/6 | Polyamide (PA66), Nylon 6/6 | Polyamide (PA), Nylon, Polyphthalamide (PPA) | Polyamide (PA), Nylon |
| Contact Tail Length | 0.138" (3.50mm) | 0.138" (3.50mm) | 0.130" (3.30mm) | 0.150" (3.81mm) | - | 0.154" (3.90mm) |
| Insulation Height | 0.472" (12.00mm) | 0.472" (12.00mm) | 0.472" (12.00mm) | 0.472" (12.00mm) | 0.472" (12.00mm) | 0.472" (12.00mm) |
| RoHS Status | ROHS3 Compliant | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
Direct Equivalent - Recommended Primary Selection:
The TE Connectivity 1776147-3 is the direct equivalent to the 1546111-3. Both parts share identical electrical specifications (15 A at 300 V UL), matching pitch (5.08mm), identical shrouding configuration (4 side), and compatible operating temperature range (-40°C to 110°C). The 1776147-3 maintains active product status with ROHS3 compliance and RoHS certification. This part provides the highest level of compatibility and requires no design modification.
Active Substitute - Secondary Selection:
The Molex 0395311003 is an active substitute with matching pitch (5.08mm), identical shrouding (4 side), and equivalent electrical ratings (15 A at 300 V UL). This part is ROHS3 compliant. The operating temperature range is -40°C to 105°C, which is 5°C lower than the original specification. Contact tail length is 0.130" (3.30mm) versus 0.138" (3.50mm) on the original part. These dimensional differences require verification against PCB layout and mating connector specifications.
Active Substitute - Alternative Selection:
The HARTING 14120317001000 provides matching pitch (5.08mm), identical shrouding (4 side), and equivalent current rating (15 A). This part offers enhanced voltage rating (600 V UL versus 300 V UL) and maintains the operating temperature range (-40°C to 110°C). ROHS3 compliance and REACH Unaffected status are confirmed. Contact tail length is not specified and requires verification.
Active Substitute - Extended Temperature Option:
The Molex 0395314503 maintains matching pitch (5.08mm), identical shrouding (4 side), and equivalent electrical ratings (15 A at 300 V UL). This part features an extended operating temperature range (-40°C to 140°C) and gold contact mating finish. ROHS3 compliance is confirmed. Contact tail length is 0.130" (3.30mm). This option is suitable for applications requiring elevated temperature performance.
Partial Compatibility - Mechanical Variation:
The Molex 0395310003 features matching pitch (5.08mm) and equivalent electrical specifications (15 A at 300 V UL). However, this part has 2-side shrouding versus the 4-side shrouding of the original part. Contact tail length is 0.150" (3.81mm), which differs from the original 0.138" (3.50mm). This part requires mechanical compatibility verification with the mating connector and PCB layout.
Pitch Variation - Requires Verification:
The Molex 0395211003 and 0395216003 feature 0.197" (5.00mm) pitch versus the original 5.08mm pitch. While both maintain 3-position configuration, 4-side shrouding, and equivalent electrical ratings (15 A at 300 V UL), the pitch difference requires verification against mating connector specifications and PCB layout. Operating temperature is -40°C to 105°C.
Pitch Variation - Higher Voltage Option:
The HARTING 14120316001000 features 0.197" (5.00mm) pitch with 4-side shrouding and equivalent current rating (15 A). This part offers enhanced voltage rating (600 V UL) and maintains operating temperature range (-40°C to 110°C). Pitch variation requires verification against mating connector and PCB specifications.
Current Rating Reduction - Limited Compatibility:
The Phoenix Contact 1755529 and 1755749 feature reduced UL current rating (12 A versus 15 A). The 1755749 maintains matching pitch (5.08mm) and 4-side shrouding with equivalent voltage rating (300 V UL). The 1755529 features 0.197" (5.00mm) pitch. Both parts have contact tail length of 0.154" (3.90mm). These parts are suitable only for applications with current requirements not exceeding 12 A.
Frequently Asked Questions (FAQ)
Q: Can the TE Connectivity 1776147-3 be used as a direct replacement for the 1546111-3?
A: Yes. The 1776147-3 is a direct equivalent with identical pitch (5.08mm), shrouding configuration (4 side), electrical specifications (15 A at 300 V UL), and operating temperature range (-40°C to 110°C). No design modification is required.
Q: What is the primary difference between the Molex 0395311003 and the original 1546111-3?
A: The 0395311003 maintains matching pitch (5.08mm), shrouding (4 side), and electrical ratings (15 A at 300 V UL). The operating temperature range is -40°C to 105°C (5°C lower than the original -40°C to 110°C). Contact tail length is 0.130" (3.30mm) versus 0.138" (3.50mm). These differences require verification against application requirements and PCB layout.
Q: Why does the Molex 0395310003 have a different shrouding configuration?
A: The 0395310003 features 2-side shrouding instead of 4-side shrouding. While electrical specifications match (15 A at 300 V UL) and pitch is identical (5.08mm), the reduced shrouding affects mechanical compatibility with mating connectors. Verification against connector specifications is required before selection.
Q: What is the advantage of the Molex 0395314503 over other substitutes?
A: The 0395314503 provides an extended operating temperature range (-40°C to 140°C) compared to the original specification (-40°C to 110°C). It maintains matching pitch (5.08mm), 4-side shrouding, and equivalent electrical ratings (15 A at 300 V UL). Gold contact mating finish provides enhanced corrosion resistance. This part is suitable for high-temperature applications.
Q: Can parts with 0.197" (5.00mm) pitch be used instead of 5.08mm pitch?
A: Pitch variation requires verification against mating connector specifications and PCB layout. The Molex 0395211003, 0395216003, and HARTING 14120316001000 feature 5.00mm pitch. While electrical specifications and shrouding configurations may match, the pitch difference affects mechanical compatibility. Design verification is required.
Q: What is the significance of the contact tail length variation?
A: Contact tail length affects solder joint formation and mechanical engagement with PCB plated through-holes. The original 1546111-3 has 0.138" (3.50mm) tail length. Substitutes vary from 0.130" (3.30mm) to 0.154" (3.90mm). Verification against PCB design specifications and solder process parameters is required to ensure reliable solder joints.
Q: Are all substitute parts RoHS compliant?
A: All listed substitute parts are RoHS compliant. The original 1546111-3 is ROHS3 compliant. The TE Connectivity 1776147-3 is RoHS compliant. All Molex, HARTING, and Phoenix Contact substitutes are ROHS3 compliant. Compliance status is confirmed for all parts.
Q: Why does the Phoenix Contact 1755749 have a lower current rating?
A: The Phoenix Contact 1755749 has a UL current rating of 12 A versus 15 A for the original part. This part is suitable only for applications with current requirements not exceeding 12 A. If the application requires 15 A capacity, this part is not suitable.
Q: What is the difference between the HARTING 14120317001000 and the original 1546111-3?
A: The HARTING 14120317001000 maintains matching pitch (5.08mm), 4-side shrouding, and equivalent current rating (15 A). The voltage rating is enhanced (600 V UL versus 300 V UL). Operating temperature range matches (-40°C to 110°C). Contact tail length is not specified and requires verification. This part is suitable for applications requiring higher voltage ratings.
Q: Is the color difference between parts significant?
A: Color difference (gray versus black versus green) is a cosmetic variation and does not affect electrical or mechanical function. The original 1546111-3 is gray. Most substitutes are black or green. Color selection should be based on application requirements and visual identification needs only.
Q: What compliance certifications should be verified before part selection?
A: All listed parts are ROHS3 compliant or RoHS compliant. REACH status varies: some parts are REACH Unaffected, others are Vendor Undefined. All parts carry UL94 V-0 flammability rating. Verify REACH compliance status against specific application and regional requirements before final selection.
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