YP Series

YP Series MIL-Spec Connectors

This series combines the advantages and functions of the Y2 series with the P-type electrical connector.
The bayonet type connection structure with Y2 adopts the contact arrangement pattern of the P-type connector.
It has the characteristics of small size, light weight, wide contact type spectrum and fast separation.
The LYP series housing is machined from high-strength aluminum alloy.
The LYP series is interchangeable with the YP series and is an ideal replacement for the old-fashioned ‘P’ connector.
Widely applicable to electrical equipment and circuit connections between various instruments and meters
Enterprise Standard: Q/321202LHY021-2012

Category: Circular Connector

Description

YP series Electrical Connector

Characteristic

Working temperature	Soldering type: -55°C～ +125°C Crimp type: -55 °C ~ +200 °C
Vibration	YP series: 10Hz ~ 2000Hz ,147 m/s² LYP series: 10Hz ~ 2000Hz ,196 m/s²
Shock	490 m/s²
Seal	withstand air pressure: 0.2Mpa (only sealed receptacle)

Electrical specifications

Contact resistance and rated current

Contact specifications (mm)	Contact resistance (mΩ)	Rated Current (A)
Φ1.0	≤5	5
Φ1.5	≤3	10
Φ2.5	≤1	25
Φ3.5 (YP series only)	≤1	50
Φ5.5 (YP series only)	≤1	100

Withstand Voltage (YP series only)

Number of Contacts	Withstand Voltage (V)
3、4、5、7、10、14、19	1500
24、32、36、37、50、65、81、120	1000

Rated voltage, withstand voltage and insulation resistance

Working Environment	Rated voltage (V)	Withstand Voltage (V)	Insulation Resistance (MΩ)
Normal Temperature and pressure	500	1500	≥ 3000
High temperature and humidity	500	750（YP series） 1125（LYP series）	≥ 20
High temperature	500	—	≥ 500
Low air pressure: 4.39kpa	250	750（YP series） 350（LYP series）	—

Note: When the number of contacts is 32, 37, 65, 81, 120, the withstand voltage is 1000V under normal temperature conditions.

Crimp pinhole axial load (refer to GJB101A)

Contact size (mm)	Minimum axial load （N）
1.0	50
1.5	60
2.5	70

Contact crimping barrel inner diameter and adapter wire cross section

Contact diameter (mm)	Type	inner diameter (Φ)	Adapter wire cross section (mm²)
1.0	A	0.8	0.2~0.4
	B	1.2	0.5~0.8
	C	1.6	1~1.5
1.5	A	0.8	0.2~0.4
	B	1.2	0.5~0.8
	C	1.6	1~1.5
	D	2.0	>1.5
2.5	A	0.8	0.2~0.4
	B	1.2	0.5~0.8
	C	1.6	>1~1.5
	D	2.0	>1.5

Mechanical specifications

Shell: Aluminum alloy castings (YP series)
High-strength aluminum alloy material (LYP series)
Plating: nickel-plated, painted (YP series)
Anodized coloring, nickel plating (LYP series)
Insulator: heat resistant thermoplastic or thermoset material
Contact: Copper alloy plating: gold, silver
Mechanical life: 500 times

Order mark

Example: YP21ZJM5gQYNi

	YP21	Z	J	M	5	g	Q	Y	Ni
Main code: LYP – indicates circular electrical connection 21 – Housing number 21, 28, 36, 50	YP21
Housing form: T-plug, Z-receptacle		Z
Contact category: J- pin, K- socket			J
Sealing mark: M – Receptacle seal No marking – Plug or unsealed receptacle				M
Contact combination code: YP21 (1-13), YP28 (1-27), YP36 (1-15), YP50 (1-8)					5
Contact surface plating: u- Gold plated; g- Silver plated						g
Cable cover form: Q- straight cable cover; W- curved cable cover							Q
Wiring method: Y- Crimp type; No mark- Soldered								Y
Surface treatment: No marking – Black paint; Ni- Blasting nickel plating									Ni

Product Dimension

Model No.	Installation size				Dimension
Model No.	A	D1	M	T	B	H	D2	D3	D4	L1	L2	L3	L4	L5	L6	L7	L8
YP21	22~24	12	M21x0.75 LH	3.5	31	51	31	22.7	41	92	82	65	47	102	92	75	57
YP28	28~32	18	M28x1 LH	3.5	42	59	38	28.7	48	106	92	70	51	119	106	84	65
YP36	36~40	26	M36x1 LH	3.5	50	68	46	36.7	56	123	112	81	62	134	123	92	73
YP50	48~52	40	M50x1 LH	4.5	63		60	51.2			130	91	73

Model No.	A	B	D	D1	D2	D3	L
LYP14	16	24	Φ6.5	Φ24	Φ15.5	Φ14	41
LYP21	23	31	Φ12	Φ31	Φ22.6	Φ21	45
LYP28	28	38	Φ18	Φ38	Φ28.6	Φ28	49
LYP36	36	46	Φ26	Φ46	Φ36.6	Φ36	60
LYP50	50	62.5	Φ40	Φ60	Φ51.1	Φ50	71

Contact fitting dia. (mm)	1	1.5	2	2.5	3.5	5	5.5
Identification symbol

No. of contacts	2 pins					3 pins

Model No.	YP21-1	YP21-2		YP28-1	YP28-1	YP21-3		YP21-4		YP36-1
Contact size	Φ1.5X2	Φ2.5X2		Φ3.5X2	Φ5X2	Φ2.5X3		Φ1.5X3		Φ5.5 X 3
No. of contacts	4pins

Model No.	YP21-6	YP21-7		YP21-8	YP28-3	YP28-5		YP28-6		YP28-7
Contact size	Φ2.5X4	Φ1.5X4		Φ1.5X2 Φ2.5X2	Φ1.5X2 Φ2.5X2	Φ2.5X2 Φ3.5X2		Φ1.5X2 Φ3.5X2		Φ3.5X4
No. of contacts	4 pins	5 pins			6 pins	7 pins

	YP36-2	YP21-9		YP21-10	YP28-8	YP21-11		YP28-10		YP28-14
	Φ5.5X4	Φ2.5 X 5		Φ1.5X5	Φ1.5X4 Φ3.5X2	Φ1.5X7		Φ2.5X7		Φ1.5X3 Φ2.5X4
No. of contacts	8 pins		10 pins				12 pins

Model No.	YP28-15		YP21-12		YP28-19		YP28-21		YP28-22
Contact size	Φ2.5X8		Φ1X6 Φ1.5X4		Φ1.5X10		Φ1.5X6 Φ2.5X6		Φ1.5X12

No. of contacts	14 pins					16 pins		19 pins

Model No.	YP21-13	YP28-23		YP36-5		YP36-11		YP28-24		YP36-12
Contact size	Φ1×14	Φ1.5×14		Φ1.5×8 Φ2.5×6		Φ1.5×16		Φ1×15 Φ1.5×4		Φ1.5×19
No. of contacts	20 pins		24 pins		26 pins		30 pins

Model No.	YP50-1		YP28-25		YP50-2		YP50-3		YP50-4
Contact size	Φ1.5×14 Φ2.5×6		Φ1×20 Φ1.5×4		Φ1.5×26		Φ1.5×22 Φ2.5×8		Φ1.5×30
No. of contacts	32 pins		37 pins		36 pins		50 pins

Model No.	YP28-26		YP28-27		YP36-13		YP36-14		YP50-8
Contact size	Φ1×32		Φ1×37		Φ1×32 Φ1.5×4		Φ1×46 Φ1.5×4		Φ2×50
No. of contacts	65 pins			81 pins				120 pins

Model No.	YP36-15			YP50-6				YP50-7
Contact size	Φ1×65			Φ1×71 Φ1.5×10				Φ1×120