P20-0445R Equivalent & Substitute Parts

Part Overview

The P20-0445R is a 4-position spring piston connector manufactured by Harwin Inc., designed for surface mount applications in the HotShoe series. This rectangular connector features brass contacts with gold plating and is classified as obsolete. Due to its obsolete status, equivalent substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

P20-0445R

Harwin Inc.In Stock: 1220P20-0445R Datasheet

Current PartRFQ

P70-1000045R

Harwin Inc.In Stock: 2864P70-1000045R Datasheet

MFR RecommendedRFQ

P70-1010045R

Harwin Inc.In Stock: 6578P70-1010045R Datasheet

MFR RecommendedRFQ

P70-2000045R

Harwin Inc.In Stock: 27179P70-2000045R Datasheet

MFR RecommendedRFQ

P70-2010045R

Harwin Inc.In Stock: 5374P70-2010045R Datasheet

MFR RecommendedRFQ

P70-5100045

Harwin Inc.In Stock: 3233P70-5100045 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P20-0445R is determined by the following critical parameters:

Contact Type & Function: All substitute parts are individual spring-loaded piston contacts (Sleeve & Plunger / Pogo Pins) rather than complete connector assemblies. The P20-0445R is a 4-position connector assembly; substitution requires selecting four individual contacts from the available options.

Mounting Technology: Substitutes are divided into two categories:

• Surface Mount (SMD): P70-1000045R, P70-1010045R, P70-5100045
• Through Hole (T/H): P70-2000045R, P70-2010045R

Working Height: Substitute contacts are available in two height ranges:

• Standard height: 0.106" to 0.122" (2.70mm to 3.10mm)
• Extended height: 0.146" to 0.165" (3.70mm to 4.20mm)

Pad Layout Dimension: Contact pad sizes vary:

• 0.087" (2.20mm) circular: P70-1000045R, P70-1010045R
• 0.094" (2.40mm) circular (T/H): P70-2000045R, P70-2010045R
• 0.047" (1.20mm) circular: P70-5100045

Plunger Size: Two plunger diameters are available:

• 0.035" (0.90mm): P70-1000045R, P70-1010045R, P70-2000045R, P70-2010045R
• 0.024" (0.60mm): P70-5100045

All substitute contacts share common electrical characteristics: 2A current rating, 10,000 mating cycles, brass construction with gold plating (16.0µin / 0.41µm), and operating temperature range of -40°C to 85°C.

Parameter Comparison

Engineering Selection Recommendations

All substitute contacts are manufactured by Harwin Inc. and maintain full compliance with ROHS3 and REACH requirements, ensuring regulatory continuity with the obsolete P20-0445R. All substitute parts carry active product status, providing long-term availability and supply chain stability.

For surface mount applications requiring standard working height (0.106" to 0.122"), select P70-1000045R with 0.087" (2.20mm) pad layout and 0.035" (0.90mm) plunger diameter. This contact is available in Cut Tape and Digi-Reel packaging with 2800 units in stock.

For surface mount applications requiring extended working height (0.146" to 0.165"), select either P70-1010045R with 0.087" (2.20mm) pad layout (6509 units in stock, Tape & Reel packaging) or P70-5100045 with 0.047" (1.20mm) pad layout and 0.024" (0.60mm) plunger diameter (3184 units in stock, Bag packaging).

For through hole applications requiring standard working height, select P70-2000045R with 0.094" (2.40mm) pad layout (27094 units in stock, Cut Tape packaging). For through hole applications requiring extended working height, select P70-2010045R with 0.094" (2.40mm) pad layout (5338 units in stock, Cut Tape packaging).

Frequently Asked Questions (FAQ)

Q: Can individual P70 series contacts directly replace the P20-0445R connector assembly?

A: No. The P20-0445R is a complete 4-position connector assembly, while P70 series parts are individual spring-loaded contacts. A complete replacement design requires selecting four individual contacts and integrating them into a compatible connector housing or PCB layout.

Q: What is the primary difference between P70-1000045R and P70-1010045R?

A: Both are surface mount contacts with 0.087" (2.20mm) pad layout and 0.035" (0.90mm) plunger diameter. The key difference is working height: P70-1000045R operates at 0.106" to 0.122" (2.70mm to 3.10mm), while P70-1010045R operates at 0.146" to 0.165" (3.70mm to 4.20mm). Packaging also differs: P70-1000045R is supplied in Cut Tape and Digi-Reel, while P70-1010045R is supplied in Tape & Reel.

Q: What distinguishes the surface mount contacts from the through hole contacts?

A: Surface mount contacts (P70-1000045R, P70-1010045R, P70-5100045) are designed for PCB surface mounting with circular pad layouts of 0.087" or 0.047" diameter. Through hole contacts (P70-2000045R, P70-2010045R) feature 0.094" (2.40mm) circular pad layouts for through hole PCB insertion.

Q: Why does P70-5100045 have a smaller plunger diameter (0.024") compared to other substitutes?

A: P70-5100045 is designed for applications requiring a smaller contact footprint, with a 0.047" (1.20mm) pad layout and 0.024" (0.60mm) plunger diameter. This contact is suitable for high-density interconnect designs where standard 0.035" (0.90mm) plunger contacts cannot be accommodated.

Q: Are all substitute contacts rated for the same electrical specifications?

A: Yes. All substitute contacts share identical electrical ratings: 2A current capacity, 10,000 mating cycles, and -40°C to 85°C operating temperature range. Differences exist only in mechanical dimensions (working height, pad layout, plunger size) and packaging format.

Q: What packaging options are available for each substitute contact?

A: P70-1000045R is supplied in Cut Tape (CT) and Digi-Reel. P70-1010045R is supplied in Tape & Reel (TR). P70-2000045R and P70-2010045R are supplied in Cut Tape (CT). P70-5100045 is supplied in Bag packaging.