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PCN21B-95PB-2W-G Equivalent & Substitute Parts
Part Overview
The PCN21B-95PB-2W-G is a 133-position (95 signal + 38 ground) backplane connector header manufactured by Hirose Electric Co Ltd. This press-fit through-hole connector operates at 1.5A per contact with a 300V rating across an operating temperature range of -55°C to 125°C. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production support.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Header, Male Pins |
| Number of Positions | 133 (95 + 38 Ground) |
| Pitch | 0.079" (2.00mm) |
| Number of Rows | 5 + 2 |
| Mounting Type | Through Hole |
| Termination | Press-Fit |
| Contact Finish | Gold |
| Current Rating | 1.5 A |
| Voltage Rating | 300V |
| Operating Temperature | -55°C to 125°C |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the PCN21B-95PB-2W-G is determined by the following critical parameters:
Position Count & Ground Configuration: The main part contains 133 total positions (95 signal + 38 ground). Substitutes must match this exact configuration or provide equivalent ground distribution.
Pitch & Row Structure: All substitutes maintain 0.079" (2.00mm) pitch with 5 + 2 row configuration to ensure mechanical and electrical compatibility.
Electrical Ratings: Current rating of 1.5A and voltage rating must meet or exceed the original 300V specification.
Termination & Mounting: Press-fit termination through through-hole mounting is maintained across all substitutes.
Contact Finish: Gold plating is specified for all equivalent parts.
Temperature Range: Operating temperature of -55°C to 125°C is consistent across all substitutes.
Substitutes are grouped into two categories:
Category A - Full Position Match (133 positions): HM2P67PK5111GFLF, HM2P67PMA3T4GFLF, HM2P71PD5111N9LF provide identical 133-position configuration with 95 signal + 32 or 38 ground positions.
Category B - Reduced Position Match (95 positions): CP2-HAB095-GE1-KR, HM2P67PD5110N9LF, HM2P67PDE120N9LF, HM2P67PDU241N9LF, HM2P67PKA3A0GFLF, HM2P71PD5110N9LF provide 95-position signal configuration without integrated ground positions, suitable for applications where ground distribution is handled separately.
Parameter Comparison
| Part Number | Manufacturer | Positions | Rows | Pitch | Current (A) | Voltage | Temp Range | Status | RoHS |
|---|---|---|---|---|---|---|---|---|---|
| PCN21B-95PB-2W-G | Hirose Electric | 133 (95+38G) | 5+2 | 2.00mm | 1.5 | 300V | -55 to 125°C | Obsolete | N/A |
| CP2-HAB095-GE1-KR | 3M | 95 | 5 | 2.00mm | — | — | -55 to 125°C | Active | Yes |
| HM2P67PD5110N9LF | Amphenol ICC (FCI) | 95 | 5 | 2.00mm | 1.5 | 750Vrms | -55 to 125°C | Active | Yes |
| HM2P67PD5111N9LF | Amphenol ICC (FCI) | 127 (95+32G) | 5+2 | 2.00mm | 1.5 | 750Vrms | -55 to 125°C | Active | Yes |
| HM2P67PDE120N9LF | Amphenol ICC (FCI) | 95 | 5 | 2.00mm | 1.5 | 750Vrms | -55 to 125°C | Active | Yes |
| HM2P67PDU241N9LF | Amphenol ICC (FCI) | 95 | 5 | 2.00mm | 1.5 | 750Vrms | -55 to 125°C | Active | Yes |
| HM2P67PK5111GFLF | Amphenol ICC (FCI) | 127 (95+32G) | 5+2 | 2.00mm | 1.5 | 750Vrms | -55 to 125°C | Active | Yes |
| HM2P67PKA3A0GFLF | Amphenol ICC (FCI) | 95 | 5 | 2.00mm | 1.5 | 750Vrms | -55 to 125°C | Active | Yes |
| HM2P67PMA3T4GFLF | Amphenol ICC (FCI) | 127 (95+32G) | 5+2 | 2.00mm | 1.5 | 750Vrms | -55 to 125°C | Active | Yes |
| HM2P71PD5110N9LF | Amphenol ICC (FCI) | 95 | 5 | 2.00mm | 1.5 | 750Vrms | -55 to 125°C | Active | Yes |
| HM2P71PD5111N9LF | Amphenol ICC (FCI) | 133 (95+38G) | 5+2 | 2.00mm | 1.5 | 750Vrms | -55 to 125°C | Active | Yes |
Engineering Selection Recommendations
Direct Replacement (Highest Compatibility): HM2P71PD5111N9LF is the primary substitute for PCN21B-95PB-2W-G. Both connectors provide 133-position configuration (95 signal + 38 ground) with identical pitch, row structure, and electrical ratings. The HM2P71PD5111N9LF is manufactured by Amphenol ICC (FCI), carries active product status, and holds RoHS compliance. Voltage rating of 750Vrms exceeds the original 300V specification.
Alternative Full-Position Substitutes: HM2P67PK5111GFLF and HM2P67PMA3T4GFLF provide 127-position configuration (95 signal + 32 ground). These parts maintain electrical and thermal specifications but reduce ground positions by 6 compared to the original. Selection depends on circuit design tolerance for ground distribution.
Reduced-Position Alternatives: For applications where ground distribution is managed through separate connectors or PCB traces, 95-position variants (CP2-HAB095-GE1-KR, HM2P67PD5110N9LF, HM2P67PDE120N9LF, HM2P67PDU241N9LF, HM2P67PKA3A0GFLF, HM2P71PD5110N9LF) provide signal-only configurations. All maintain 2.00mm pitch, 1.5A current rating, and -55°C to 125°C operating range.
Compliance Considerations: All Amphenol ICC (FCI) Millipacs® substitutes are RoHS compliant and carry active product status. The 3M MetPak™ CP2 variant (CP2-HAB095-GE1-KR) is also RoHS compliant and active but provides 95-position configuration only.
Frequently Asked Questions (FAQ)
Q: Can HM2P71PD5111N9LF directly replace PCN21B-95PB-2W-G without PCB modification?
A: Yes. Both connectors share identical 133-position count (95 signal + 38 ground), 2.00mm pitch, 5 + 2 row configuration, and through-hole press-fit termination. Mechanical and electrical compatibility is maintained.
Q: What is the difference between 127-position and 133-position substitutes?
A: The original PCN21B-95PB-2W-G and HM2P71PD5111N9LF provide 133 total positions (95 signal + 38 ground). Alternatives HM2P67PK5111GFLF and HM2P67PMA3T4GFLF provide 127 positions (95 signal + 32 ground), reducing ground positions by 6. Circuit design must accommodate this reduction in ground distribution.
Q: Are 95-position variants suitable replacements?
A: 95-position connectors (CP2-HAB095-GE1-KR, HM2P67 and HM2P71 series with PD5110 designation) provide signal-only configuration without integrated ground positions. These are suitable only if ground distribution is handled through separate connectors or dedicated PCB traces. They are not direct mechanical replacements for the 133-position original.
Q: What is the voltage rating difference between the original and substitutes?
A: The original PCN21B-95PB-2W-G is rated at 300V. All Amphenol ICC (FCI) substitutes are rated at 750Vrms, providing higher voltage margin. The 3M CP2-HAB095-GE1-KR does not specify voltage rating in available data.
Q: Are all substitutes RoHS compliant?
A: All listed substitutes carry RoHS compliance status. The original PCN21B-95PB-2W-G does not specify RoHS status due to its obsolete classification.
Q: What packaging formats are available?
A: The 3M CP2-HAB095-GE1-KR is supplied in bulk packaging. Amphenol ICC (FCI) Millipacs® series substitutes are supplied in tray packaging. Packaging selection depends on production volume and handling requirements.
Q: Do all substitutes maintain the same current rating?
A: The original PCN21B-95PB-2W-G and all Amphenol ICC (FCI) substitutes are rated at 1.5A per contact. The 3M CP2-HAB095-GE1-KR does not specify current rating in available data.
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