Y27 Series Circular Connector

  1. Push/pull locking mechanism for reliable coupling and separation.
  2. Suitable for blind insertion and other insertions, with anti-vibration, anti-salt, anti-electromagnetic interference, dust proof, rain proof, and gas sealing performance.
  3. Materials are aluminum alloy, navy brass and stainless steel. There are 13 kinds of shell numbers, 18 kinds of cores such as 1~121, and 10 kinds of current specifications from 3 to 250A.
  4. Y27F, G, H series electrical connectors are suitable for marine environment and have waterproof sealing performance.
  5. Widely used in aerospace, aviation, shipbuilding, communications and other fields.
  6. Conforms to the Chinese national military standard GJB2905A-2004, performance reference US military standard MIL-C-38999
  7. Enterprise Standard: Q/321202LHY004-2011
Category:

Description

Y27 series Electrical Connector

Environmental Specifications

Operating temperature

-55 ~ +125°C Sinusoidal Vibration 10 Hz ~ 2000 Hz, 196 m/s2

Operating Pressure

1.33 Pa ~ 101.3 kPa Random Vibration Power spectral density 0.4g2/Hz, Acceleration rms value 23.1g

Relative humidity

95% at 40°C Shock 980 m/s2

Immersion

2m depth (only Y27F, G, H series) Constant acceleration

980 m/s2

Electromagnetic interference shielding

45dB minimum attenuation @ interference frequency is 100MHz~1GHz

Salt spray resistance

Y27, Y27A, B, C series: 48 hours,
Y27F, G, H series: aluminum alloy shell 96 hours;
Y27F, G, H series: naval brass, stainless steel 1000 Hour

  • Electrical continuity between enclosures:
  1. Aluminum case: 0.01Ω
  2. One of the plug or receptacle housings is stainless steel or iron alloy: 0.05Ω

 

Receptacle hermeticity

  • Rubber seal: Maximum leakage rate is 1 pa.cm3/s
  • Sintered seal: Maximum leakage rate is 1×10-4cm3/s
  • Mechanical life: 500 times

 

Electrical performance (contact resistance mΩ)

Mating diameter (mm)

0.8 1.0 1.5 2.5 3.5 5.0 7.0 9.0 10.0 12.0

Material

Copper Iron Copper Iron Copper Iron Copper Iron Copper Copper Copper Copper Copper Copper

Before the life test

12

25 10 12 7 10 1.5 5 1 0.7 0.5 0.4 0.4

0.3

After life test

15 32 12 20 10 15 3 10 1.5 1 0.8 0.7 0.6

0.5

 

Electrical performance (contact current rating A)

Contact diameter(mm)

0.8 1.0 1.5 2.5 3.5 5.0 7.0 9.0 10.0 12.0

Contact current rating

Y27

3

Y27A

5

Y27B

5 10 25 50 75 100 150 200
Y27C 5 10 25 50 75 100 150 200

Y27F 7.5

Y27G 7.5 13 25 50 75 100 150 200

250

Y27H 3 5

 

Electrical performance (withstand voltage V)

series

Test voltage (50Hz AC RMS)

Y27

Y27A Y27B Y27C Y27F Y27G Y27H
Normal condition 750 1300 1500 2500 2300 2300

1300

Low air pressure≤ 1.33pa 100 200 200 300 200 200

200

 

Electrical performance (Insulation resistance MΩ)

Series

Y27 Y27A Y27B Y27C Y27F Y27G Y27H

Normal Condition

1000 4000 5000 5000 5000 5000 4000

High

Humidity

Ordinary 500 1000 1000 1000 1000 1000 1000

Sintering

200 200 200 200 200 200

Moist 50 100 100 100 100 100

100

Rain 20 20 20 20

Immersion 20 20

20

 

Plug Ordering format

Example: Y27AII-0804TJLFII-B

Y27 A II 08 04 T J L F II B
Main code Y27
Series number A
Primary and secondary key angle recognition II
Shell number 08
Number of contacts 04
Shell type;

  • T – plug
T
Contact type:

  • J – pin;
  • K – socket
J
Type:

  • L cable type
L
Separation form F
Tail attachment form II
Shell material type:

  • not marked – aluminum alloy;
  • B- stainless steel;
  • C- copper alloy
B

Note:

(1) The identification numbers of the main keyway and the auxiliary keyway are: I (not shown), II, III.

(2) The number of shells and the number of contacts in each sub-series are shown in the spectrum description.

(3) Contact type:

Y27 series: J1 (K1) means that the contact wire is flat and arranged in two directions: back to back.

Y27A series:

  • J (K) means that the contact wire is flat and aligned in two directions.
  • J1 (K1) means that the contact wire is flat and arranged in two directions: back to back.
  • J3 (K3) means that the contact piece is crimped and detachable.
  • J4 (K4) means that the contact wires are flat and aligned in one direction.

Y27B series: J (K) means that the contact wire is flat and aligned in one direction.

Y27C series:

  • J (K) means that the contact wires are flat and aligned in one direction.
  • J1 (K1) means that the contact wire is flat and aligned in two directions.

Y27F series: J (K) means that the contact wires are flat and aligned in one direction.

Y27G series:

  • J (K) means that the contact wires are flat and aligned in one direction.
  • J1 (K1) means that the contact wire is flat and aligned in two directions.

(4) Separation form: A (not marked) – push / pull type,

F – pull line separate type.

(5) Back-shell form:

  • Omit – no Back-shell,
  • II – with type II,
  • III – with type III,
  • IV—with type IV,
  • V—with V type,
  • VI—with type VI,
  • VII—with type VII;

The Y27A, B, and C series can only be equipped with II, II A, III, and VI tail attachments. The specific supporting situation is shown in the attached article.

(6) Housing material category: B, C is suitable for marine environment.

Example:

Y27A Series No. 08 housing with 4-pin plug, primary and secondary key angle II, with Type III tail attachment, model Y27AII- 0804TJLIII

 

Receptacle Ordering format

Example: Y27AII-0804ZJLFII-B

Y27 A II 08 04 Z J L F II B
Main code Y27
Series number A
Primary and secondary key angle recognition II
Shell number 08
Number of contacts 04
Shell type;

  • Z – Receptacle
Z
Contact type:

  • J – pin;
  • K – socket
J
Mounting type L
Seal form F
Back-shell form II
Shell material type:

  • not marked – aluminum alloy;
  • B- stainless steel;
  • C- copper alloy
B

Note:

(1) The identification numbers of the primary and secondary keyway are: I (not shown), II, III.

(2) The number of shells and the number of contacts in each sub-series are shown in the spectrum description.

(3) Contact type:

Y27 series: J1 (K1) means that the contact wire is flat and arranged in two directions: back to back.

Y27A series:

  • J (K) means that the contact wire is flat and aligned in two directions.
  • J1 (K1) means that the contact wire is flat and arranged in two directions: back to back.
  • J3 (K3) means that the contact piece is crimped and detachable.
  • J4 (K4) means that the contact wires are flat and aligned in one direction.

Y27B series: J (K) means that the contact wire is flat and aligned in one direction.

Y27C series:

  • J (K) means that the contact wires are flat and aligned in one direction.
  • J1 (K1) means that the contact wire is flat and aligned in two directions.

Y27F series: J (K) means that the contact wires are flat and aligned in one direction.

Y27G series:

  • J (K) means that the contact wires are flat and aligned in one direction.
  • J1 (K1) means that the contact wire is flat and aligned in two directions.

(4) Installation method:

  • L- Cable type,
  • B-Square flange mounting
  • B1- Square flange mounting,
  • B2- Nut mounting,
  • B3-Solder mounting;
  • B4-Wall mounting (B4 type contact type J means that both ends of the receptacle are pin contacts, if contact type does not indicate, one end is a pin contact, and one end is a socket contact)

(5) Sealing form:

  • P (not marked) – Unsealed,
  • M-rubber seal,
  • H-glass sintered seal.

The combination of the mounting mode and the sealing form of the receptacle is shown in the combination of the use.

(6) Tail attachment form: Omitted-no attachment,

  • II-with type II,
  • III-with type III,
  • IV-with type IV,
  • V—with V type,
  • VI—with VI type,
  • VII—with type VII;

Y27A, B, and C series can only be equipped with II, II A, III, and VI tail attachments. The specific supporting situation is shown in the attached article.

(7) Shell material category: B, C is suitable for marine environment.

Example:

Y27B series, Shell No. 12, with 3 sockets, B-type square flange mounting, primary and secondary key angle I, rubber seal, no tail Accessories, model number: Y27B-1203ZKBM

 

Tail attachment Ordering format

Example: Y27 10VB

Y27 10 V B
Main code Y27
Shell number 10
Type:

  • II – heat shrinkable tube type;
  • III – single wire plate type;
  • IV – double wire plate type; V – shielded type;
  • VI – 90° curved shield seal;
  • VII – clamped type;
  • VIII – shielded;
V
Difference No.:

  • A, B, C, D, E, F, L means lengthened type (see type IV tail attachment)
B

Example: It is matched with the Y27B series, Shell No. 12 plug, and the cable is packaged in the heat shrinkable sleeve type Y27-12 II.

 

Example: JS27F10TBLM

JS 27F 10 T B L M
metal protective cap JS
Applicable product series code:

27A Applicable to Y27A, B, C;

27F Applicable to Y27F, G, H;

27F
Shell number:

08,10,12,14,16,18, 20, 22, 24, 26, 28, 30, 32;

10
Shell type:

T- plug,

Z- receptacle;

T
Shell material category:

N-aluminum alloy nickel plating,

H-aluminum alloy red oxidation,

B-stainless steel,

C-copper alloy;

B
chain type:

(not marked) – user own chain,

L- with metal chain;

L
Function (only for receptacle protection caps):

not marked – with Protection,

M- rain proof protection cap; M

Example:

  • Matched with Y27G Series plug with Shell No. 20, red oxidized surface, without metal chain, model number JS27F-20TH

Ordering guide:

  • Under normal circumstances, it is preferred to use the “I” type of the key position to identify the number “I” type. When two or more products of the same type are installed on the same panel, the product with the “A” type of the key position identification number is selected.

 

Y27 series electrical connector plug, receptacle, tail attachment, metal protective cap combination

Arrangement description

  • ▼ in the spectrum indicates the position of the primary key (slot)
  • The contact position number in the type spectrum refers to the hole number of the socket on the mating interface. Note: The pull-off plug and the mark code are finally W.
  • The order of the hole number of the plug is opposite to that of the type spectrum.
  • The four digits above the spectrum, the first two digits are the shell number, and the last two digits are the number of contacts.
  • Contact specifications and indications are shown in the table below.
Contact fitting diameter (mm) 0.8 1.0 1.5 2.5 3.5 5.0 7.0 9.0 10.0 12.0
Contact current rating (A) Y27、Y27A、B、C、H 3 5 10 25 50 75 100 150 200
Y27F、G 7.5 13 25 50 75 100 150 200 250
Representation

 

Y27 series contact arrangement

Y27 contact arrangement

1424 1430 2255 2261 2485

 

Y27A contact arrangement

0804 1007 1410 1414 1619 2024
2030 2237 2444 2455 2661

 

Y27B contact arrangement

1203 1607 2001 2004 2012
2214 2404 2412 2419 2624

 

Y27C contact arrangement

1604 2004 2604 2617 3004 3006

 

Y27F contact arrangement

1004 1610 1814 2019 2224
2430 2637 2844 2855

 

Y27G contact arrangement

1003 1203 1204 1405
1407 1604 1810 2004
2210 2014 2424 2612
2837 3203 3204 3255

 

Y27H contact arrangement

2885 28121 2692