FindMyChip
Get Quote

M52-5102045 Harwin Connector In Stock

Harwin M52-5102045 is a 40-contact (20+20) dual-in-line vertical through-board socket assembly with 1.27 mm pitch, 4.6 mm height, and gold contact finish, designed for high-density miniature module interconnection in compact embedded and aerospace electronics.

ACTIVEConnectorVerified Jun 2026
Package / Visual Reference
M52-5102045IC Package
Quick Facts
Manufacturer
Harwin
Package
—
Pin Count
40
Lifecycle
ACTIVE
Datasheet
M52-5102045 Datasheet PDF
Category
Connector
Price
From $2.9800(MOQ 1012)
Temp Range
-40.0°C to 105.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

What are the key features of M52-5102045?

  • 40 contacts (20+20 DIL) in compact 1.27 mm (0.05 inch) pitch for ultra-high-density layouts
  • Gold contact finish for reliable low-resistance mating across repeated insertion cycles
  • 4.6 mm height vertical through-board profile minimizing board stack height
  • RoHS-compliant construction supporting lead-free assembly and environmental compliance

What is M52-5102045 used for?

The M52-5102045 is ideal for socketing small compute modules, memory sticks, and RF daughtercards in embedded systems and aerospace electronics where 1.27 mm pitch and 40 contacts must fit in a minimal PCB footprint. Its gold-finished contacts and through-board vertical mounting support reliable signal integrity in high-vibration environments such as UAVs, satellite subsystems, and ruggedized industrial controllers.

What are the specifications of M52-5102045?

Pbfree CodeYes
YTEOL9.15
Additional FeatureROHS COMPLIANT
Body Breadth0.197inch
Body Depth0.181inch
Body Length1.016inch
Body/Shell StyleSOCKET
Connector TypeBOARD CONNECTOR
Contact Finish MatingNOT APPLICABLE
Contact Finish TerminationGold (Au)
Contact GenderFEMALE
Contact MaterialNOT APPLICABLE
Contact PatternRECTANGULAR
Contact Resistance30mΩ
DIN ConformanceNO
Dielectric Withstanding Voltage500VAC V
Durability300Cycles
Filter FeatureNO
IEC ConformanceNO
Insertion Force-Max1.0008N
Insulation Resistance1000000000Ω
Insulator ColorBLACK
Insulator MaterialPOLYAMIDE
JESD-609 Codee4
MIL ConformanceNO
Mating Contact Pitch0.05inch
Mating Contact Row Spacing0.1inch
Mixed ContactsNO
Mounting Option 1LOCKING
Mounting StyleSTRAIGHT
Mounting TypeBOARD
Number Of ConnectorsONE
Number Of PCB Rows2
Number of Rows Loaded2
OptionGENERAL PURPOSE
PCB Contact PatternRECTANGULAR
Rated Current (Signal)1A
Reference StandardUL
Terminal Length0.118inch
Terminal Pitch1.27mm
Termination TypeSOLDER
Total Number of Contacts40
UL Flammability Code94V-0
Withdrawl Force-Min.11954N

Compliance & Regulatory

RoHS StatusCompliant
Lead-FreeYes (Pb-Free)
ECCNEAR99
HTS Code8536.69.40.40
Country of OriginTaiwan

Where can I find the M52-5102045 datasheet?

M52-5102045 Datasheet Download

Official datasheet from Harwin

What are equivalent replacements for M52-5102045?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

How does the 1.27 mm pitch of the M52-5102045 compare to standard 2.54 mm pitch sockets for high-density PCB designs?

At 1.27 mm (0.05 inch) pitch, the M52-5102045 provides double the contact density of standard 2.54 mm pitch sockets, fitting 40 contacts (20+20) in a board length of roughly 25.4 mm versus 50 mm for an equivalent 2.54 mm alternative. This density advantage is critical for small form-factor modules in UAVs, wearables, and compact embedded systems.

What is the benefit of the 4.6 mm body height of the M52-5102045 in stacked PCB assemblies?

The 4.6 mm vertical height allows socketed modules to sit close to the host board, maintaining a low overall stack height under 10 mm when a standard module is inserted. In space-constrained enclosures for industrial IoT gateways or embedded vision systems, this low-profile through-board socket saves several millimeters versus taller 7 mm or 8.5 mm alternatives.

When should engineers choose gold over tin contact finish for the M52-5102045 socket in a mission-critical application?

Gold contact finish is preferred over tin when the M52-5102045 will experience more than 50 insertion cycles, operate in humid or corrosive environments, or carry low-level signals below 100 mV where oxide-induced contact resistance increase would cause measurement errors. Gold plating maintains contact resistance below 20 mΩ throughout the connector's rated insertion life.

Which types of plug-in modules or mezzanine cards is the M52-5102045 socket designed to receive?

The M52-5102045 accepts standard 1.27 mm pitch DIL pin headers from compatible Harwin M52 series and similar 0.05 inch pitch mezzanine modules, including small compute-on-modules, RF front-end cards, and sensor daughtercards with 40 pins. The 1.016 inch body length accommodates 20 pins per row across the 0.197 inch body width.

Related Guides

STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply

Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.

Aug 1, 2026

STM32H725IGT3 High-Performance MCU Design Guide

Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.

Jul 31, 2026

150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing

Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.

Jul 31, 2026

STEF05SGR 5 V eFuse Protection Design Guide

Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.

Jul 30, 2026

Why Buy from FindMyChip

Authorized Source
Verified supply chain with full traceability & inspection
Competitive Pricing
Factory-direct from China distributors, low MOQ
Fast Shipping
DHL Express 3–5 days · FedEx/UPS 5–7 days worldwide
Quality Guaranteed
30-day replacement for defective parts, no questions asked

About Harwin

Harwin is a leading electronic component manufacturer. FindMyChip sources Harwin ICs directly from authorized China distributors, offering competitive pricing and reliable stock.

View all Harwin parts →
AvailabilityIn Stock
Reference Price (USD)
From $2.9800
Buy from 1pc · Factory-direct pricing
Qty.Unit PriceExt. Price
1012+$3.2000$3238.40
2508+$2.9800$7473.84
pcs
Unit price: $3.2000 · Total: $3238.40

In Stock · 24h Response · Worldwide Shipping

Direct Contact
WhatsApp InquiryEmail RFQ
Lead Time3-7 business days
MOQFrom 1 piece
ShippingDHL / FedEx / UPS
OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”

SK
Sarah Kim
VP Engineering, NovaBit Electronics, South Korea

You May Also Like

10214-6212PC

3M

Connector

1778573

Phoenix Contact

Connector

5227222-3

TE Connectivity

Connector

S4B-XH-SM4-TB(LF)(SN)

JST (JAPAN SOLDERLESS TERMINALS)

Connector

185226-2

TE Connectivity

Connector

0533980571

Molex

Connector

0360-0-15-01-34-27-10-0

Mill-Max

Connector

7850-0006PR

3M

Connector

AVB 1,5/2/12

BLOCK

Connector

CLE-110-01-G-DV-TR

SAMTEC

Connector

CLE-110-01-G-DV-A-TR

SAMTEC

Connector

CLE-110-01-G-DV-A

SAMTEC

Connector

TSM-103-01-TM-DV

SAMTEC

Connector

TSM-103-01-T-SH

SAMTEC

Connector

TSM-103-01-T-DV

SAMTEC

Connector

N3764-5002RB

3M

Connector

N3627-6002RB

3M

Connector

N3627-5002RB

3M

Connector

N3440-6002RB

3M

Connector

929715-03-36-I

3M

Connector

929667-02-36-I

3M

Connector

929665-04-36-I

3M

Connector

929665-02-36-I

3M

Connector

929647-04-36-I

3M

Connector