Datasheet

VR25, VR37, VR68
www.vishay.com
Vishay BCcomponents
Revision: 21-Sep-2018
8
Document Number: 28907
For technical questions, contact: [e-mail]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
DIMENSIONS
VR25 WITH RADIAL TAPING
Lead Spacing (F = 4.8 mm), Size 0207


4.24 78 (Cab)
Damp heat
(steady state)
56 days; 40 °C;
90 % to 95 % RH; loaded with 0.01 P
70
(steps: 0 V to 100 V)
R max.: ± 1.5 % R
4.25.1 Endurance (at 70 °C)
1000 h; loaded with P
70
or U
max.
;
1.5 h ON and 0.5 h OFF
R max.: ± 1.5 % R
4.26
Active flammability
“cheese-cloth test”
Steps of:
5 / 10 / 16 / 25 / 40 x P
70
duration 5 min
VR25: no flaming of
gauze cylinder
VR68: no flaming of
gauze cylinder
4.35
Passive flammability
“needle-flame test”
Application of test flame for 20 s
No ignition of product;
no ignition of under-layer;
burning time less than 30 s
DIMENSIONS - Leaded resistor types, mass, and relevant physical dimensions
TYPE Ø D
max.
(mm) L
1 max.
(mm) L
2 max.
(mm) Ø d (mm) MASS (mg)
VR25 2.5 6.5 7.5 0.58 ± 0.05 212
VR37 4.0 9.0 10.0 0.70 ± 0.03 457
VR68 6.8 18.0 19.0 0.78 ± 0.05 1690
TESTS PROCEDURES AND REQUIREMENTS
IEC 60115-1
CLAUSE
IEC 60068-2
TEST METHOD
TEST PROCEDURE
REQUIREMENTS
PERMISSIBLE CHANGE
(R
max.
)
L
1
d
D
L
2
P
P
2
W
W
0
D
0
P
1
P
0
L
1
L
F
H
0
H
1
H
α = 30° to 40°
α
α
aa
DIMENSIONS in millimeters
Pitch of components P 12.7 ± 1.0
Lead spacing F 4.8 + 0.7 / - 0.0
Width of carrier tape W 18.0 ± 0.5
Body to hole center H 19.5 ± 1.0
Height for cutting (max.) L 11
Height for bending H
0
16.5 ± 0.5
Component height (max.) H
1
29