516-056-520-302

BACKPLANE CONN, PLUG, 56POS, 9ROW/3.81MM

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: EDAC
Product type:
Product Range:516 Series; No. of Contacts:56Contacts; Pitch Spacing:3.81mm; Gender:Plug; Contact Termination Type:Through Hole; No. of Rows:9Rows; Row Pitch:- 73R7075
SVHC: No SVHC (21-Jan-2025)
Gender: Plug
Row Pitch: -
No. of Rows: 9Rows
Pitch Spacing: 3.81mm
Product Range: 516 Series
Contact Plating: Gold Plated Contacts
No. of Contacts: 56Contacts
Contact Material: Phosphor Bronze
Contact Termination Type: Through Hole

Delivery and price
Units per pack	50
Price	33.63 €
Current stock	25+
Lead time	30 days

Datasheet

**==> picture [282 x 58] intentionally omitted <==**

**----- Start of picture text -----**<br>
ISSUE NUMBER<br>THIS IS A C.A.D. GENERATED DRAWING<br>DO NOT MAKE MANUAL REVISIONS TO MASTER. ORIGINAL 1<br>**----- End of picture text -----**<br>


## **Contact Detail: 520-P.C. Tail .025x.024(0.64x0.61) - Tail LG.=.215(5.46)** 

**==> picture [264 x 100] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.591 65.81<br>0.876 22.25<br>**----- End of picture text -----**<br>


**==> picture [85 x 65] intentionally omitted <==**

## **Features** 

## **Specifications** 

- UL Recognized 

   - Insulator Material: Diallyl Phthalate or Thermo plastic Polyester, UL94V-0, Colour: Green, or Polycarbonate, Colour: Grey 

- .150 (3.81) Contact Spacing x .130 (3.30) or .150 (3.81) Row Spacing with Staggered Grid 

- Plug and Receptacle in 20, 38, 56, 90 or 120 Contact Sizes 

   - Contact Material: Phosphor Bronze Alloy CA-510 

- Edacon Hermaphroditic Contact Mating Design 

      - Contact Plating: Gold over Nickel for Entire Contact 

      - • Cover Material: Polycarbonate, Colour: Green, or DieCast Zinc, Finished with Grey Enamel Paint 

- 

- Contact Termination Options Include: Crimp, P.C. Tail, Wire Hole and Wire Wrap 

   - Mating and Unmating Simplified with use of Actuating Screws 

- 

- Optional Covers with Side or Top Entry Cable Clamp in Plastic or Metal Material Available for All Connector Sizes 

   - Current Rating: 8.5 Amperes 

- 

      - Contact Resistance: 10 Milliohms Maximum 

   - 

- Versatile Metal Cover Design Permits Assembly and Disassembly after Cabling is Complete plus Cable Entry Style Flexibility 

   - Dielectric Withstanding Voltage: 2000 V AC rms at Sea Level 

- Actuating Screws, Locknuts, Polarizing Hardware, Covers and Contacts Suitable for either Plug or Receptacle 

      - Insulation Resistance: 5000 Megohms Minimum 

      - Operating Temperature: -65 to +125 Degrees C 

      - • Insertion and Withdrawal Force: 2 to 16 oz (0.56 to 4.45 N) per Contact Position 

   - Polarizing Hardware Adjustable for 288 Mating Combinations 

- 

- Tools Available for Contact Installation, Removal and Crimping and Polarizing Changes 

|||516 Assembly<br>Part Number: 516-056-520-302|516 Assembly<br>Part Number: 516-056-520-302|516 Assembly<br>Part Number: 516-056-520-302|516 Assembly<br>Part Number: 516-056-520-302|516 Assembly<br>Part Number: 516-056-520-302|516 Assembly<br>Part Number: 516-056-520-302|516 Assembly<br>Part Number: 516-056-520-302|516 Assembly<br>Part Number: 516-056-520-302|516 Assembly<br>Part Number: 516-056-520-302|516 Assembly<br>Part Number: 516-056-520-302|516 Assembly<br>Part Number: 516-056-520-302|516 Assembly<br>Part Number: 516-056-520-302|ACAD REFERENCE NO.<br>CHECKED:<br>DRAWN:<br>DATE:<br>DATE:<br>516 Assembly<br>J.LEE<br>JUNE 18, 2009|ACAD REFERENCE NO.<br>CHECKED:<br>DRAWN:<br>DATE:<br>DATE:<br>516 Assembly<br>J.LEE<br>JUNE 18, 2009|ACAD REFERENCE NO.<br>CHECKED:<br>DRAWN:<br>DATE:<br>DATE:<br>516 Assembly<br>J.LEE<br>JUNE 18, 2009|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||||||||||||EDAC INC|THESE DRAWINGS AND SPECIFICATIONS|SCALE:<br>1:1|SHEET<br>1<br>OF<br>4||
|||||||||||||TORONTO, ONTARIO|ARE THE PROPERTY OF EDAC INC.,AND<br>SHALL NOT BE REPRODUCED,OR COPIED|DRAWING NUMBER||ISSUE|
|||||||||||||CANADA|OR USED AS THE BASIS FOR THE||||
||YOUR CONNECTION TO QUALITY & SERVICE||||||||||||MANUFACTURE OR SALE OF APPARATUS<br>WITHOUT WRITTEN PERMISSION.|516 Assembly||1|



- **See Accompanying Pages for: - PC Tail Layout** 

- **Cutout Panel Details** 

- **Cover Details** 

**==> picture [734 x 520] intentionally omitted <==**

**----- Start of picture text -----**<br>
ISSUE NUMBER<br>THIS IS A C.A.D. GENERATED DRAWING<br>DO NOT MAKE MANUAL REVISIONS TO MASTER. ORIGINAL 1<br>(20) (38) (56)<br>0.040 1.02  Dia. Holes 0.040 1.02  Dia. Holes 0.040 1.02  Dia. Holes<br>0.075 1.91 0.075 1.91<br>0.130 3.30<br>0.150 3.81 0.150 3.81<br>0.150 3.81<br>0.600 15.24 0.600 15.24<br>0.410 10.41<br>0.075 1.91 0.130 3.30 0.130 3.30<br>0.150 3.81 12 Row Spaces 12 Row Spaces<br>0.150 3.81 0.150 3.81<br>0.750 19.05<br>1.190 30.23 1.710 43.43<br>20 Pin 38 Pin 56 Pin<br>P.C. Tail Layout P.C. Tail Layout P.C. Tail Layout<br>(120)<br>(90) 0.040 1.02  Dia. Holes<br>0.040 1.02  Dia. Holes<br>1.200 30.48<br>0.900 22.86<br>0.130 3.30<br>0.075 1.91 0.075 1.91 0.130 3.30<br>1.820 46.23 1.820 46.23<br>0.150 3.81 0.150 3.81<br>90 Pin 120 Pin<br>P.C. Tail Layout P.C. Tail Layout<br>516 Assembly ACAD REFERENCE NO. 516 Assembly<br>DRAWN: J.LEE DATE:JUNE 18, 2009<br>P.C. Tail Layout Details CHECKED: DATE:<br>EDAC INC THESE DRAWINGS AND SPECIFICATIONS SCALE: 1:1 SHEET 2 OF 4<br>ARE THE PROPERTY OF EDAC INC.,AND<br>TORONTO, ONTARIO SHALL NOT BE REPRODUCED,OR COPIED DRAWING NUMBER ISSUE<br>CANADA OR USED AS THE BASIS FOR THE<br>YOUR CONNECTION TO QUALITY & SERVICE MANUFACTURE OR SALE OF APPARATUSWITHOUT WRITTEN PERMISSION. 516 Assembly 1<br>**----- End of picture text -----**<br>


||"B"<br>"C"<br>"A" Dia. Hole<br>(4)|"B"<br>"C"<br>"A" Dia. Hole<br>(4)|"B"<br>"C"<br>"A" Dia. Hole<br>(4)|"B"<br>"C"<br>"A" Dia. Hole<br>(4)||||||Polarizing Hardware<br>"G" Max.<br>End Cut-Outs Optional<br>Provide Access to<br>THIS IS A C.A.D. GENERATED DRAWING<br>DO NOT MAKE MANUAL REVISIONS TO MASTER.|Polarizing Hardware<br>"G" Max.<br>End Cut-Outs Optional<br>Provide Access to<br>THIS IS A C.A.D. GENERATED DRAWING<br>DO NOT MAKE MANUAL REVISIONS TO MASTER.|Polarizing Hardware<br>"G" Max.<br>End Cut-Outs Optional<br>Provide Access to<br>THIS IS A C.A.D. GENERATED DRAWING<br>DO NOT MAKE MANUAL REVISIONS TO MASTER.|Polarizing Hardware<br>"G" Max.<br>End Cut-Outs Optional<br>Provide Access to<br>THIS IS A C.A.D. GENERATED DRAWING<br>DO NOT MAKE MANUAL REVISIONS TO MASTER.|Polarizing Hardware<br>"G" Max.<br>End Cut-Outs Optional<br>Provide Access to<br>THIS IS A C.A.D. GENERATED DRAWING<br>DO NOT MAKE MANUAL REVISIONS TO MASTER.|ISSUE NUMBER|ISSUE NUMBER|ISSUE NUMBER|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||||||||||||||||ORIGINAL<br>1|||
|||||"B"||||||||||||||
|||||||||||||||||||
|||||||||||||||||||
|||||||||||||||||||
|||||"C"||||"D"<br>"E"<br>"F"||||||||||
|||||||||||||||||||
|||Dimension A|Dimension B||||Dimension C||Dimension D||Dimension E|Dimension F||Dimension G||||
||20 Pin|0.104 [2.64]|0.640 [16.26]||||0.410 [10.41]||0.960 [24.38]||1.126 [28.60]|1.270 [32.26]||R0.130 [R3.30]||||
||38 Pin|0.136 [3.45]|0.816 [20.73]||||0.468 [11.89]||1.420 [36.07]||1.688 [42.88]|1.958 [49.73]||R0.130 [R3.30]||||
||56 Pin|0.136 [3.45]|0.816 [20.73]||||0.468 [11.89]||1.940 [49.28]||2.280 [57.91]|2.550 [64.77]||R0.130 [R3.30]||||
||90 Pin|0.136 [3.45]|1.120 [28.45]||||0.765 [19.43]||2.050 [52.07]||2.282 [57.96]|2.675 [67.95]||R0.130 [R3.30]||||
||120 Pin|0.136 [3.45]|1.420 [36.07]||||0.875 [22.23]||2.050 [52.07]||2.375 [60.33]|2.675 [67.95]||R0.130 [R3.30]||||
|||||||||||||||||||
||||||||516 Assembly<br>Cut-Out Panel Detail||||||ACAD REFERENCE NO.<br>516 Assembly|||||
||||||||||||||DRAWN:<br>J.LEE|||DATE:<br>JUNE 18, 2009||
||||||||||||||CHECKED:|||DATE:||
||||||||TORONTO, ONTARIO<br>YOUR CONNECTION TO QUALITY & SERVICE<br>EDAC INC<br>CANADA||||THESE DRAWINGS AND SPECIFICATIONS<br>ARE THE PROPERTY OF EDAC INC.,AND<br>SHALL NOT BE REPRODUCED,OR COPIED<br>OR USED AS THE BASIS FOR THE<br>MANUFACTURE OR SALE OF APPARATUS<br>WITHOUT WRITTEN PERMISSION.||SCALE:<br>SHEET<br>3<br>OF<br>4|||||
||||||||||||||<br>DRAWING NUMBER<br>516 Assembly||||ISSUE<br>1|



**==> picture [735 x 520] intentionally omitted <==**

**----- Start of picture text -----**<br>
ISSUE NUMBER<br>THIS IS A C.A.D. GENERATED DRAWING<br>DO NOT MAKE MANUAL REVISIONS TO MASTER. ORIGINAL 1<br> "F"<br> "E"<br> "B"   "G"<br> "D"<br> "C"<br>Top Entry Side Entry Standard Clamp Large Clamp<br>Cover for  Cover  Clamp<br>"A" "B" "C" "D" "E" "F" "G"<br>Connector Material Size<br>20 Pin Plastic Standard 1.605 (40.77) 1.325 (33.66) 0.906 (23.01) 1.190 (30.23) 0.715 (18.16) 0.450 (11.43) 0.450 (11.43)<br>20 Pin Metal Standard 1.539 (39.09) 1.325 (33.66) 0.906 (23.01) 1.120 (28.45) 0.686 (17.42) 0.446 (11.33) 0.490 (12.45)<br>38 Pin Plastic Standard 2.460 (62.48) 2.010 (51.05) 1.530 (38.86) 1.985 (50.42) 0.910 (23.11) 0.650 (16.51) 0.500 (12.70)<br>38 Pin Plastic Large 2.460 (62.48) 2.010 (51.05) 1.530 (38.86) 1.985 (50.42) 1.110 (28.19) 0.650 (16.51) 0.608 (15.44)<br>38 Pin Metal Standard 2.206 (56.03) 2.006 (50.95) 1.566 (39.78) 1.766 (44.86) 0.875 (22.23) 0.720 (18.29) 0.575 (14.61)<br>56 Pin Plastic Standard 2.602 (66.09) 2.602 (66.09) 1.530 (38.86) 1.985 (50.42) 0.910 (23.11) 0.650 (16.51) 0.500 (12.70)<br>56 Pin Plastic Large 2.602 (66.09) 2.602 (66.09) 1.530 (38.86) 1.985 (50.42) 1.110 (28.19) 0.650 (16.51) 0.608 (15.44)<br>56 Pin Metal Standard 2.602 (66.09) 2.602 (66.09) 1.566 (39.78) 1.766 (44.86) 0.875 (22.23) 0.720 (18.29) 0.575 (14.61)<br>90 Pin Plastic Standard 2.718 (69.04) 2.718 (69.04) 1.775 (45.09) 2.181 (55.40) 1.250 (31.75) 0.800 (20.32) 0.800 (20.32)<br>90 Pin Metal Standard 2.718 (69.04) 2.718 (69.04) 1.775 (45.09) 2.175 (55.25) 1.234 (31.34) 0.880 (22.35) 0.900 (22.86)<br>120 Pin Plastic Standard 2.750 (69.85) 2.750 (69.85) 2.020 (51.31) 2.426 (61.62) 1.530 (38.86) 0.800 (20.32) 1.080 (27.43)<br>120 Pin Metal Standard 2.750 (69.85) 2.750 (69.85) 2.020 (51.31) 2.445 (62.10) 1.531 (38.89) 0.890 (22.61) 1.080 (27.43)<br>516 Assembly ACAD REFERENCE NO. 516 Assembly<br>DRAWN: J.LEE DATE:JUNE 18, 2009<br>Cut-Out Panel Detail<br>CHECKED: DATE:<br>EDAC INC THESE DRAWINGS AND SPECIFICATIONS SCALE: SHEET 4 OF 4<br>ARE THE PROPERTY OF EDAC INC.,AND<br>TORONTO, ONTARIO SHALL NOT BE REPRODUCED,OR COPIED DRAWING NUMBER ISSUE<br>CANADA OR USED AS THE BASIS FOR THE<br>YOUR CONNECTION TO QUALITY & SERVICE MANUFACTURE OR SALE OF APPARATUSWITHOUT WRITTEN PERMISSION. 516 Assembly 1<br>**----- End of picture text -----**<br>

Updated at June 7, 2026

Established in 1966, EDAC is a globally recognized leader in the design and manufacture of high-quality interconnect solutions. Originally renowned for pioneering card edge and rack and panel connectors, the company has steadily expanded its expertise over the decades to offer one of the most comprehensive ranges of connector technologies in the electronics industry. Our portfolio of EDAC components highlights their robust connectivity solutions, with a specialized focus on high-performance backplane connectors. Engineered for demanding industrial, telecommunications, and enterprise computing environments, these backplane solutions deliver reliable signal routing, structural integrity, and consistent electrical performance in complex system architectures. Driven by a commitment to continuous innovation and exceptional manufacturing quality, EDAC provides dependable connection points for critical electronic assemblies. Their dedication to engineering excellence ensures that professionals worldwide can rely on EDAC interconnects to meet the stringent demands of modern electronic design.

About Novapart

Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.

Learn more →

Stock Shortage Specialist

When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.

Request a quote →

Compliant Alternatives

We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.

BOM Analysis service →