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3M 3429-5303 Rectangular Connector Header - Equivalent & Substitute Parts
Part Overview
The 3M 3429-5303 is a through-hole, right-angle rectangular connector header with 26 positions at 0.100" (2.54mm) pitch. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The connector features shrouded 4-wall construction with latch lock/eject hooks and gold-plated mating contacts suitable for board-to-board or cable applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Header |
| Contact Type | Male Pin |
| Number of Positions | 26 |
| Number of Rows | 2 |
| Pitch - Mating | 0.100" (2.54mm) |
| Row Spacing - Mating | 0.100" (2.54mm) |
| Mounting Type | Through Hole, Right Angle |
| Shrouding | Shrouded - 4 Wall |
| Contact Finish - Mating | Gold |
| Operating Temperature Range | -55°C ~ 105°C |
| Current Rating | 1.75A |
| Material Flammability Rating | UL94 V-0 |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict alignment with the following critical parameters:
- Connector Type & Contact Configuration: Header with male pins, 26 positions in 2 rows
- Pitch Specifications: Mating pitch and row spacing both 0.100" (2.54mm)
- Mounting & Orientation: Through-hole, right-angle mounting
- Shrouding & Fastening: Shrouded 4-wall construction with keying slot and mounting flange
- Electrical Performance: 1.75A current rating, gold-plated mating contacts
- Environmental Compliance: UL94 V-0 flammability rating, operating temperature -55°C ~ 105°C
Substitute parts are grouped into two categories:
Category A - 3M Direct Substitutes (Same Series, Active Status) Parts N3429-5303RB, 3429-5002, D3429-5002-AR, and N3429-5002RB maintain full electrical and mechanical compatibility with identical pitch, position count, and mounting specifications. These parts differ in fastening type (Push-Pull vs. Latch Lock), contact post length, and RoHS compliance status.
Category B - Cross-Manufacturer Substitutes (HARTING SEK Series) HARTING parts 09185265911, 09185265913, 09185266911, 09185266913, 09185267911, and 09185267913 provide functional equivalence with identical mating pitch, position count, and shrouded 4-wall construction. These parts feature latch lock/eject hooks (short type) and operate across an extended temperature range (-55°C ~ 125°C).
Parameter Comparison
| Part Number | Manufacturer | Status | Positions | Pitch | Fastening Type | Contact Post Length | Operating Temp | RoHS Status | Packaging |
|---|---|---|---|---|---|---|---|---|---|
| 3429-5303 | 3M | Obsolete | 26 (2x13) | 0.100" | Latch Lock/Eject Hooks, Long | 0.155" (3.94mm) | -55°C ~ 105°C | Non-compliant | - |
| N3429-5303RB | 3M | Active | 26 (2x13) | 0.100" | Latch Lock/Eject Hooks, Long | 0.155" (3.94mm) | -55°C ~ 105°C | Compliant | Bulk |
| 3429-5002 | 3M | Obsolete | 26 (2x13) | 0.100" | Push-Pull | 0.112" (2.84mm) | -55°C ~ 105°C | Non-compliant | Bulk |
| D3429-5002-AR | 3M | Active | 26 (2x13) | 0.100" | Push-Pull | 0.112" (2.84mm) | -55°C ~ 105°C | ROHS3 Compliant | Tray |
| N3429-5002RB | 3M | Active | 26 (2x13) | 0.100" | Push-Pull | 0.112" (2.84mm) | -55°C ~ 105°C | ROHS3 Compliant | Bulk |
| 09185265911 | HARTING | Active | 26 (2x13) | 0.100" | Latch Lock/Eject Hooks, Short | 0.177" (4.50mm) | -55°C ~ 125°C | ROHS3 Compliant | Bulk |
| 09185265913 | HARTING | Active | 26 (2x13) | 0.100" | Latch Lock/Eject Hooks, Short | 0.114" (2.90mm) | -55°C ~ 125°C | ROHS3 Compliant | Bulk |
| 09185266911 | HARTING | Active | 26 (2x13) | 0.100" | Latch Lock/Eject Hooks, Short | 0.177" (4.50mm) | -55°C ~ 125°C | ROHS3 Compliant | Bulk |
| 09185266913 | HARTING | Active | 26 (2x13) | 0.100" | Latch Lock/Eject Hooks, Short | 0.114" (2.90mm) | -55°C ~ 125°C | ROHS3 Compliant | Bulk |
| 09185267911 | HARTING | Active | 26 (2x13) | 0.100" | Latch Lock/Eject Hooks, Short | 0.177" (4.50mm) | -55°C ~ 125°C | ROHS3 Compliant | Bulk |
| 09185267913 | HARTING | Active | 26 (2x13) | 0.100" | Latch Lock/Eject Hooks, Short | 0.114" (2.90mm) | -55°C ~ 125°C | ROHS3 Compliant | Bulk |
Engineering Selection Recommendations
For Direct Replacement (Latch Lock/Eject Hooks, Long Type)
N3429-5303RB is the primary active substitute for 3429-5303. Both maintain identical fastening type (latch lock/eject hooks, long), contact post length (0.155"), and operating temperature range. N3429-5303RB carries ROHS3 compliance, addressing regulatory requirements for new designs while maintaining full mechanical and electrical compatibility.
For Alternative Fastening (Push-Pull Type)
D3429-5002-AR and N3429-5002RB provide functional equivalence with Push-Pull fastening instead of latch lock. These parts feature shorter contact posts (0.112" vs. 0.155") and are available in active status with ROHS3 compliance. Selection depends on PCB layout accommodation for the reduced post length and fastening mechanism preference.
For Extended Temperature Operation
HARTING SEK series parts (09185265911, 09185265913, 09185266911, 09185266913, 09185267911, 09185267913) extend the operating temperature range to -55°C ~ 125°C and carry ROHS3 compliance. These parts employ short-type latch lock/eject hooks and are available in two contact post lengths (0.177" or 0.114"). Selection within this series depends on specific PCB clearance requirements and fastening hook length preference.
Frequently Asked Questions (FAQ)
Q: Can N3429-5303RB directly replace 3429-5303 without PCB modification?
A: Yes. N3429-5303RB maintains identical pitch (0.100"), position count (26 in 2 rows), mounting type (through-hole right-angle), shrouding (4-wall), and fastening type (latch lock/eject hooks, long). The only difference is RoHS compliance status. No PCB layout changes are required.
Q: What is the difference between latch lock/eject hooks (long) and (short)?
A: The long type (3429-5303, N3429-5303RB) provides extended engagement depth for secure mating. The short type (HARTING SEK series) reduces overall connector height. Selection depends on mating connector specifications and available PCB space.
Q: Why do HARTING parts have different contact post lengths?
A: HARTING offers two post length options within the SEK series: 0.177" (4.50mm) and 0.114" (2.90mm). The 0.114" option aligns more closely with the original 3429-5303 post length (0.155"), while the 0.177" option provides extended engagement for applications requiring deeper solder joint penetration.
Q: Are all substitute parts RoHS compliant?
A: N3429-5303RB, D3429-5002-AR, N3429-5002RB, and all HARTING SEK series parts carry RoHS3 compliance. The original 3429-5303 and 3429-5002 are non-compliant. For new designs, active compliant parts are recommended.
Q: What packaging options are available?
A: 3M parts are supplied in Bulk or Tray packaging. HARTING SEK series parts are supplied in Bulk packaging only. Packaging selection affects inventory management and component handling procedures.
Q: Can Push-Pull fastening parts (3429-5002, D3429-5002-AR, N3429-5002RB) replace latch lock parts?
A: Mechanically, yes, if the mating connector accepts Push-Pull fastening. However, the shorter contact post (0.112" vs. 0.155") requires PCB layout verification to ensure adequate solder joint formation and clearance to adjacent components.
Q: What is the temperature operating range difference between 3M and HARTING parts?
A: 3M parts operate -55°C ~ 105°C. HARTING SEK series extends to -55°C ~ 125°C. For applications exceeding 105°C, HARTING parts are required.
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