Request Quote
(Ships tomorrow)
PCN21B-55PC-2PF Equivalent & Substitute Parts
Part Overview
The PCN21B-55PC-2PF is a 55-position header connector manufactured by Hirose Electric Co Ltd, designed for backplane applications with 2.00mm pitch and press-fit termination. This connector features male pins, through-hole mounting, and gold-plated contacts rated for 1.5A at 300V across an operating temperature range of -55°C to 125°C.
The PCN21B-55PC-2PF is classified as obsolete. Equivalent and substitute parts are necessary to maintain design compatibility, ensure supply chain continuity, and support ongoing production requirements for systems utilizing this connector specification.
Substiute Parts
Key Parameters
| Parameter | PCN21B-55PC-2PF |
|---|---|
| Manufacturer | Hirose Electric Co Ltd |
| Number of Positions | 55 |
| Pitch | 0.079" (2.00mm) |
| Number of Rows | 5 |
| Connector Type | Header, Male Pins |
| Mounting Type | Through Hole |
| Termination | Press-Fit |
| Connector Usage | Backplane |
| Contact Finish | Gold |
| Current Rating | 1.5 A |
| Voltage Rating | 300V |
| Operating Temperature | -55°C ~ 125°C |
| Connector Style | C 11 |
| Features | Board Guide |
| Moisture Sensitivity Level | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the PCN21B-55PC-2PF is determined by the following critical parameters:
Primary Matching Criteria:
- Number of Positions: 55
- Pitch: 0.079" (2.00mm)
- Number of Rows: 5
- Connector Type: Header, Male Pins
- Mounting Type: Through Hole
- Termination: Press-Fit
- Connector Style: C 11
- Features: Board Guide
- Operating Temperature Range: -55°C ~ 125°C
Electrical Compatibility Criteria:
- Current Rating: Minimum 1.5 A
- Voltage Rating: Minimum 300V
- Contact Finish: Gold
Substitute parts are grouped into two categories:
Category 1: Direct 55-Position Substitutes Parts maintaining identical position count, row configuration, and all primary matching criteria. These provide direct form-fit-function replacement.
Category 2: 77-Position Variants (55 + 22 Ground) Parts with expanded position count incorporating additional ground pins. These offer enhanced grounding capability while maintaining the core 55-position signal configuration and are suitable for applications requiring improved ground distribution.
Parameter Comparison
| Part Number | Manufacturer | Positions | Rows | Pitch | Current Rating (A) | Voltage Rating | Operating Temp (°C) | Contact Finish | Product Status |
|---|---|---|---|---|---|---|---|---|---|
| PCN21B-55PC-2PF | Hirose Electric Co Ltd | 55 | 5 | 0.079" (2.00mm) | 1.5 | 300V | -55 ~ 125 | Gold | Obsolete |
| 100159-1 | TE Connectivity AMP Connectors | 55 | 5 | 0.079" (2.00mm) | 1.5 | 500Vrms | -55 ~ 125 | Gold | Active |
| 17030552201 | HARTING | 55 | 5 | 0.079" (2.00mm) | 1.0 | — | -55 ~ 125 | Gold or Gold-Palladium | Active |
| 17030552202 | HARTING | 55 | 5 | 0.079" (2.00mm) | 1.0 | — | -55 ~ 125 | Gold or Gold-Palladium | Active |
| CP2-HC055-GA1-FJ | 3M | 77 (55 + 22 Ground) | 5 + 2 | 0.079" (2.00mm) | — | — | -55 ~ 125 | Gold | Active |
| CP2-HC055-GF1-KR | 3M | 77 (55 + 22 Ground) | 5 + 2 | 0.079" (2.00mm) | — | — | -55 ~ 125 | Gold | Active |
| HM2P09PA5110AALF | Amphenol ICC (FCI) | 55 | 5 | 0.079" (2.00mm) | 1.5 | 750Vrms | -55 ~ 125 | Gold | Active |
| HM2P09PA5111AALF | Amphenol ICC (FCI) | 77 (55 + 22 Ground) | 5 + 2 | 0.079" (2.00mm) | 1.5 | 750Vrms | -55 ~ 125 | Gold | Active |
| HM2P09PC5110N9LF | Amphenol ICC (FCI) | 55 | 5 | 0.079" (2.00mm) | 1.5 | 750Vrms | -55 ~ 125 | Gold | Active |
| HM2P09PC5110Z1LF | Amphenol ICC (FCI) | 55 | 5 | 0.079" (2.00mm) | 1.5 | 750Vrms | -55 ~ 125 | Gold | Active |
| HM2P09PD5110N9LF | Amphenol ICC (FCI) | 55 | 5 | 0.079" (2.00mm) | 1.5 | 750Vrms | -55 ~ 125 | Gold | Active |
Engineering Selection Recommendations
Direct 55-Position Substitutes (Recommended Priority)
The TE Connectivity 100159-1 provides the most direct substitution path. It maintains identical position count, row configuration, pitch, and current rating while offering enhanced voltage rating (500Vrms vs. 300V). Active product status ensures ongoing availability and support.
The Amphenol ICC (FCI) Millipacs® series—HM2P09PA5110AALF, HM2P09PC5110N9LF, and HM2P09PD5110N9LF—all provide 55-position configurations with superior voltage ratings (750Vrms) and active product status. These parts are RoHS compliant and REACH affected, suitable for applications requiring regulatory compliance.
The HARTING har-bus® HM series (17030552201 and 17030552202) offer active product status and RoHS3 compliance. Note that current rating is specified at 1.0A, which is below the original 1.5A specification. These parts are suitable only for applications where 1.0A current capacity is acceptable.
77-Position Variants (Conditional Substitution)
The 3M MetPak™ CP2 series (CP2-HC055-GA1-FJ and CP2-HC055-GF1-KR) and Amphenol ICC HM2P09PA5111AALF provide 77-position configurations with integrated ground pins. These are suitable for applications where expanded grounding capability is beneficial or required. PCB layout modifications are necessary to accommodate the additional ground row.
Compliance Considerations
For applications requiring RoHS compliance, select from Amphenol ICC (FCI) Millipacs® series (RoHS compliant) or HARTING har-bus® HM series (RoHS3 compliant).
For applications subject to REACH regulations, TE Connectivity 100159-1 is REACH affected; Amphenol ICC (FCI) parts are REACH affected; HARTING and 3M parts are REACH unaffected.
Frequently Asked Questions (FAQ)
Q: Can I use a 77-position connector as a substitute for the 55-position PCN21B-55PC-2PF?
A: 77-position variants (55 + 22 ground) can be used if your PCB layout accommodates the additional ground row. The core 55-position signal configuration remains compatible. PCB redesign is required to utilize the additional ground pins.
Q: What is the difference between the Amphenol ICC HM2P09PC5110N9LF and HM2P09PD5110N9LF?
A: Both parts are 55-position headers with identical electrical specifications (1.5A, 750Vrms). The primary difference is contact finish thickness: HM2P09PC5110N9LF specifies 30.0µin (0.76µm), while HM2P09PD5110N9LF specifies flash thickness. Selection depends on contact wear and durability requirements for your application.
Q: Are HARTING 17030552201 and 17030552202 fully compatible with the PCN21B-55PC-2PF?
A: Both HARTING parts match the position count, pitch, and temperature range. However, the current rating is specified at 1.0A compared to the original 1.5A. These parts are suitable only for applications where 1.0A current capacity is acceptable.
Q: What packaging options are available for substitute parts?
A: TE Connectivity 100159-1 is supplied in tube packaging. Amphenol ICC (FCI) Millipacs® series are supplied in tray packaging. HARTING har-bus® HM series are supplied in tube packaging. 3M MetPak™ CP2 series are supplied in tube or bulk packaging depending on part number.
Q: Which substitute part offers the highest voltage rating?
A: Amphenol ICC (FCI) Millipacs® series parts (HM2P09PA5110AALF, HM2P09PC5110N9LF, HM2P09PC5110Z1LF, and HM2P09PD5110N9LF) all offer 750Vrms voltage rating, exceeding the original 300V specification.
Q: Are all substitute parts RoHS compliant?
A: Amphenol ICC (FCI) Millipacs® series are RoHS compliant. HARTING har-bus® HM series are RoHS3 compliant. TE Connectivity 100159-1 has RoHS status listed as not applicable. 3M MetPak™ CP2 series are RoHS compliant.
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