Shenzhen Jinrui Electronic Material Co.,Ltd JK-
S
MD1206 (L) Series
Shenzhen Jinrui Electronic Material Co., Ltd
TEL: +86-(0)755-26546327 29356619 FAX: +86-(0)755-26546562
Website: http://www.jkpptc.com E-mail:customer@jkpptc.com
Add: Jinke Industry Park, No.310,Wuhe Road,Guanlan,Longhua District,Shenzhen,Guangdong,China.
Specifications are subject to change without notice
！
Page 1 of 8
PPTC of JK-nSMD (L) Series Surface-mount Devices
Features：

RoHS Compliant ＆ Halogen Free
Faster tripping, 1206 Dimension, Surface mountable, Solid state
Operating Current: 1.5A~7.5A
Maximum Voltage: 6V/12V
Operating Temperature：-40℃~ 85℃
Certification: CSA ,UL, TUV
 
Product Dimensions (mm)
A B C D E
Model Marking
Min Max Min Max Min Max Min Min
JK-nSMD150L JC 3.00 3.50 1.50 1.80 0.30 0.70 0.15 0.10
JK-nSMD150L-12 JC 3.00 3.50 1.50 1.80 0.30 0.70 0.15 0.10
JK-nSMD175L JD 3.00 3.50 1.50 1.80 0.30 0.70 0.15 0.10
JK-nSMD175L-12 JD 3.00 3.50 1.50 1.80 0.30 0.70 0.15 0.10
JK-nSMD200L JD 3.00 3.50 1.50 1.80 0.30 0.70 0.15 0.10
JK-nSMD200L-12 JD 3.00 3.50 1.50 1.80 0.30 0.70 0.15 0.10
JK-nSMD260L JL 3.00 3.50 1.50 1.80 0.40 1.00 0.15 0.10
JK-nSMD260L-12 JL 3.00 3.50 1.50 1.80 0.40 1.00 0.15 0.10
JK-nSMD300L JL 3.00 3.50 1.50 1.80 0.40 1.20 0.15 0.10
JK-nSMD300L-12 JL 3.00 3.50 1.50 1.80 0.40 1.20 0.15 0.10
JK-nSMD350L JL 3.00 3.50 1.50 1.80 0.40 1.20 0.15 0.10
Shenzhen Jinrui Electronic Material Co.,Ltd JK-
S
MD1206 (L) Series
Shenzhen Jinrui Electronic Material Co., Ltd
TEL: +86-(0)755-26546327 29356619 FAX: +86-(0)755-26546562
Website: http://www.jkpptc.com E-mail:customer@jkpptc.com
Add: Jinke Industry Park, No.310,Wuhe Road,Guanlan,Longhua District,Shenzhen,Guangdong,China.
Specifications are subject to change without notice
！
Page 2 of 8
A B C D E
Model Marking
Min Max Min Max Min Max Min Min
JK-nSMD350L-12 JO 3.00 3.50 1.50 1.80 0.40 1.20 0.15 0.10
JK-nSMD380L JO 3.00 3.50 1.50 1.80 0.40 1.20 0.15 0.10
JK-nSMD380L-12 JO 3.00 3.50 1.50 1.80 0.40 1.20 0.15 0.10
JK-nSMD400L JR 3.00 3.50 1.50 1.80 0.50 1.20 0.15 0.10
JK-nSMD400L-12 JR 3.00 3.50 1.50 1.80 0.50 1.20 0.15 0.10
JK-nSMD450L JR 3.00 3.50 1.50 1.80 0.50 1.40 0.15 0.10
JK-nSMD450L-12 JR 3.00 3.50 1.50 1.80 0.50 1.40 0.15 0.10
JK-nSMD500L JP 3.00 3.50 1.50 1.80 0.50 1.40 0.15 0.10
JK-nSMD500L-12 JP 3.00 3.50 1.50 1.80 0.50 1.40 0.15 0.10
JK-nSMD550L JP 3.00 3.50 1.50 1.80 0.60 1.60 0.15 0.10
JK-nSMD550L-12
JP
3.00 3.50 1.50 1.80 0.60 1.60 0.15 0.10
JK-nSMD600L JS 3.00 3.50 1.50 1.80 0.60 1.60 0.15 0.10
JK-nSMD600L-12
JS
3.00 3.50 1.50 1.80 0.60 1.60 0.15 0.10
JK-nSMD650L
JS
3.00 3.50 1.50 1.80 0.60 1.60 0.15 0.10
JK-nSMD650L-12
JS
3.00 3.50 1.50 1.80 0.60 1.60 0.15 0.10
JK-nSMD700L
JT
3.00 3.50 1.50 1.80 0.60 1.60 0.15 0.10
JK-nSMD700L-12
JT
3.00 3.50 1.50 1.80 0.60 1.60 0.15 0.10
JK-nSMD750L
JT
3.00 3.50 1.50 1.80 0.60 1.60 0.15 0.10
JK-nSMD750L-12
JT
3.00 3.50 1.50 1.80 0.60 1.60 0.15 0.10
Recommended Solder Pad Layout Dimensions (mm)
F G H
Device
Normal Value Normal Value Normal Value
1206 Series 1.0 1.8 1.8
Electrical Characteristics
Maximum
Time-to-Trip
Resistance
Current Time Ri
MIN
R1
MAX
Model
V
MAX
(V)
I
MAX
(A)
I
H
(A)
I
T
(A)
P
D
(W)
(A) (Sec)
(Ω) (Ω)
JK-nSMD150L 6.0 50.0 1.5 3.0
0.8
8.0 5.0 0.01 0.065
JK-nSMD150L-12 12.0 50.0 1.5 3.0
0.8
8.0 5.0 0.01 0.065
JK-nSMD175L 6.0 50.0 1.75 3.5
0.8
8.0 5.0 0.01 0.06
JK-nSMD175L-12 12.0 50.0 1.75 3.5
0.8
8.0 5.0 0.01 0.06
JK-nSMD200L 6.0 50.0 2.0 4.0
0.8
8.0 5.0 0.008 0.04