1
YLN CONNECTOR
4.5mm pitch/Disconnectable Crimp style Wire-to-wire connectors
Specifications –––––––––––––––––––
• Current rating: 10A max. AC, DC
(7A when retainers are mounted)
• Voltage rating: 300V max. AC, DC
• Temperature range: -25˚C to +90˚C
(including temperature rise in applying
electrical current)
• Contact resistance: Initial value/ 7m Ωmax.
After environmental testing/ 10m Ωmax.
• Insulation resistance: 1,000M Ωmin.
• Withstanding voltage: 1,500V AC/minute
• Applicable wire: AWG #26 to #16
0.13 to 1.25mm2
*Compliant with RoHS.
* Refer to "General Instruction and Notice when using
Terminals and Connectors" at the end of this catalog.
* Contact JST for details.
Note: The current rating differs depending on the number of circuits and the wire
size used in each connector. The table below lists the current rating as a
function of the number of circuits and the wire size.
YLN
The YLN connector adds variations in
shape to the existing color variations of the
YL connector in order to improve
identification of connectors. Moreover, this
connector has a mechanism to prevent
incomplete mating by utilizing the inertial
force generated when the plug and
receptacle are mated and therefore,
ensures complete mating.
• Design to prevent incidental mating with the
YL connector
• Inertial force mechanism
• Interchangeability
• Finger friendly design
Circuits Wire size（AWG）
#16 #18 #20 #22 #24 #26
2
3
4
6
10
9
9
8
7
6
6
5
5
4
4
3
4
4
4
3
3
3
3
2
2
2
2
2
Current unit : A
35.1
38.7(including retainer)
10.8
35.1
38.7(including retainer)
17.05
(including retainer)
(2, 3 circuits) (4, 6 circuits)
Note: Secondary retainers cannot be used with AWG #16 wires.
Standards ––––––––––––––––––––––
0Recognized E60389
1Certified LR20812
2R9351052
2
YLN CONNECTOR
19.5
4.4
20.5
21.1
14.2
1.8 2.8
4.4
2 1.1
Material and Finish
Model No.
mm2AWG #
Insulation O.D.
(mm)
Applicable wire Q'ty /
reel
Pin contact Socket contact
SYM-01T-P0.5A
SYM-41T-P0.5A
SYF-01T-P0.5A
SYF-41T-P0.5A
0.13〜0.5
0.5 〜1.25
0.3+0.3〜
0.5+0.5
26〜20
20〜16
22+22〜
20+20
1.3〜2.5
2.0〜3.4
1.5+1.5〜
2.0+2.0
Phosphor bronze, tin-plated (reflow treatment)
4,000
SYM-01T-P0.5A
5,000
（ ）
Pin contact
Socket contact RoHS compliance
Note: 1. Contact JST for special products.
2. Retainers cannot be used with electric wire whose insulation O.D.
exceeds 2.7mm and AWG #16.
Material: Housing...PA 66, UL94V-0, natural (white)
Retainer...Glass-filled PA 66, UL94V-0, natural (ivory)
RoHS compliance
Note: Current rating in parentheses is for use with AWG #16 wire. (Retainers are not mountable.)
Q'ty /
bag
Q'ty /
bag
Q'ty /
bag
Q'ty /
bag
Q'ty /
bag
Q'ty /
bag
4 300V
YLNR-04VF
YLNR-06VF
200
250
YLNP-04V
YLNP-06V YLS-03V
(Used with both housings
with 3 and 6 circuits)
YLS-02V
(Used with both housings
with 2 and 4 circuits)
200
250 1,000
1,000
L JST
1
15.3
11
20.9
2
43
L JST
1
6.5
13.8
16.1 26.6
No.1 hole mark
18.3
26.6
15.5
20.9
2.9
8.3
2.9
12.8
6A
（9A）
6 300V 5A
（8A）
23
546
1
No.1 hole mark
No.1 hole mark
No.1 hole mark
L JST
6.5
16.1
2
43
LJST
1
15.3
2
54
3
6
Retainer
Q'ty /
bag
Q'ty /
bag
Voltage
rating
Q'ty /
bag
Q'ty /
bag
Q'ty /
bag
Q'ty /
bag
2 300V
YLNR-02VF
YLNR-03VF
250
250
YLNP-02V
YLNP-03V YLS-03V
(Used with both housings
with 3 and 6 circuits)
YLS-02V
(Used with both housings
with 2 and 4 circuits)
500
500 1,000
1,000
JSTL
12
10.2
2.9
8.3
2.9
12.8
Circuits Receptacle housing(for pin contact) Plug housing(for socket contact)
Current
rating
7A
（10A）
3 300V 6A
（9A）
2
L JST
1
6.5
13.8
10.8 26.6
No.1 hole mark
23
L JST
1
6.5
18.3
10.8 26.6
No.1 hole mark
JSTL
1
2
3
10.2
11
20.9
15.5
20.9
No.1
hole mark
No.1
hole mark
Note: *Strip-crimp applicator
MKS-L
*MKS-SC-YL
MKS-L
*MKS-SC-YL
SYM-01T-P0.5A
SYF-01T-P0.5A
SYM-41T-P0.5A
SYF-41T-P0.5A
Contact
Crimping
machine
Crimp applicator with dies
AP-K2N
MK/SYF/M-01-05
SC/SYF/M-01-05
MK/SYF/M-41-05
SC/SYF/M-41-05
Crimp applicator
Dies
APLMKSYF/M01-05
APLSCSYF/M01-05
APLMKSYF/M41-05
APLSCSYF/M41-05
Applicator
Contact
Housing
