LVM Series

Current Sensing Metal Chip Resistor

A p p l i c at i o n s F ea t u res
• Power Management Applications • SMD Type designed for automatic inser-
• Switching Power Supply tion
• Over Current Protection in Audio • High overload rating in small size (5 times rated watt-
Applications age for 5 seconds)
• Voltage Regulation Module (VRM) • Metal foil construction ensures high reliability and performance
with very low TCR values
• DC-DC Converter, Battery Pack,
Charger, Adaptor • Designed for current sense circuits in power electronic systems
• Pb-Free to meet RoHS requirements
S E R I E S S P E CI F IC A TION S
Power Resistance TCR
Series Rating Range* ppm/°C Tolerance
LVM06 0.125W 10m-19m 100 ±1% ±2% ±5%
20m- 100m 50, 100
LVM12 0.5W 10m-19m 100 ±1% ±2% ±5%
20m- 100m 50, 100
LVM25 1.0W 7m-100m 75 ±0.5% ±1% ±5%
15m- 100m 50

c h ara c t er i s t i c s Perf o rma n c e d a t a

Rated Cont. √(P*R) or Max. Operating Item Requiremen Test Method
Working Volts voltage whichever is
TCR As Spec. JIS-C-5201-1 4.8, IEC-60115-1 4.8,
lower
-55°C~+125°C, 25°C is the reference temperature
Derating 100% @ 70°C, Derates
Short Time ±(0.5%+0.05Ω) JIS-C-5201-1 4.13, IEC-60115-1 4.13, 5 X Rated
Linearly to Zero @ 155°C
Overload Power for 5 seconds
(170°C for LVM25)
Insulation ≥10G JIS-C-5201-1 4.6, IEC-60115-1 4.6, Max. Overload
Operating -55°C ~ +155°C
Resistance (100M for LVM25) voltage for 1 minute
temp. range (LVM25, -55°C ~ +170°C)
Endurance ±(1.0%+0.05Ω) JIS-C-5201-1 4.25, IEC-60115-1 4.25.1, 70±2°C,
Storage 25° ±3°C C; Humidity
RCWV for 1000 hrs with 1.5 hrs “ON” and 0.5 hrs
Temperature < 80%RH
“OFF”
Damp Heat ±(1.0%+0.05Ω) JIS-C-5201-1 4.24, 40±2°C, 90~95% R.H., RCWV
Derating with Load (LVM06 & 12 only) for 1000 hrs with 1.5 hrs “ON” and 0.5 hrs “OFF”
Dry Heat ±(0.5%+0.05Ω) JIS-C-5201-1 4.23, IEC-60115-1 2.23.2, at +155°C
100
(1% for LVM25) for 1000 hrs
Percent Rated Power

80
Bending ±(1.0%+0.05Ω) JIS-C-5201-1 4.33, IEC-60115-1 4.33, Bending
60 Strength once for 5 seconds with 3mm, 2010, 2512 sizes:
LVM25 2mm
40
Solderability 95% min. coverage JIS-C-5201-1 4.17, IEC-60115-1 4.17, 245±5°C
20 LVM06
LVM12 for 3 seconds
0 Resistance ±(0.5%+0.05Ω) JIS-C-5201-1 4.18, IEC-60115-1 4.18, 260±5°C
0 20 40 60 80 100 120 140 160 180
to Soldering (LVM06 & 12 only) for 10 seconds
Ambient Temperature, °C
Heat
Voltage Proof No breakdown or JIS-C-5201-1 4.7, IEC-60115-1 4.7, 1.42 times
flashover Max. Operating Voltage for 1 minute
(LVM06 & 12 only)
Leaching Individual leach- JIS-C-5201-1 4.18, IEC-60068-2-58 8.2.1,
ing area ≤5%, Total 260±5°C for 30 seconds
leaching area ≤10%
(LVM06 & 12 only)
Rapid Change ±(0.5%+0.05Ω) JIS-C-5201-1 4.18, IEC-60115-1 4.18, -55°C to
of Temp. 1% for LVM25 +155°C, 5 cycles

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LVM Series
Current Sensing Metal Chip Resistor
c h ara c t er i s t i c s
Soldering condition
IR Reflow Soldering Wave Soldering (Flow Soldering)
Temp. (°C) Peak: 265°C Temp. (°C) 260°C / 10 sec.
260°C / 10 sec. 265° LVM06 and LVM12 only
245° 235° Second wave
220° Heat-up rate ~ 3K/sec. Cooling rate First wave
~ 6K/sec.
~200K/sec. ~5K/sec.
180° Typical values
150° Process limits
150° Max. ~2K/sec.
20 sec. 100°
Pre-heating
90 ~ 120 sec. Max.
60 sec.
~2K/sec.

Number of reflow cycles allowed: 3 Time (sec.) Number of reflow cycles allowed: 2 Time (sec.)
(1) Time of IR reflow soldering at maximum temperature point 260°C, 10 sec.
(2) Time of wave soldering at maximum temperature point 260°C, 10 sec.
(3) Time of soldering iron at maximum temperature point 410°C, 5 sec.

d i me n s i o n s
(mm) L
Land Pattern
Series Size Res. mΩ L W T A B A B C B A
W
LVM06 0603 10-29 1.55 ±.10 0.85 ±.10 0.40 ±.10 0.30 ±.15 0.45 ±.15 0.40 1.20 0.9
30-100 1.55 ±.10 0.85 ±.10 0.40 ±.10 0.30 ±.15 0.35 ±.15 0.70 1.05 0.9
LVM12 1206 10-29 3.05 ±.15 1.55 ±.15 0.58 ±.15 0.50 ±.25 0.90 ±.25 A 0.9 1.70 1.70
30-100 3.05 ±.15 1.55 ±.15 0.55 ±.15 0.50 ±.25 0.60 ±.25 1.50 1.40 1.70 C
LVM25 2512 7-100 6.40 ±.25 3.20 ±.25 0.70 ±.20 0.90 ±.30 0.90 ±.30 T 4.00 2.00 3.50

B
R eel s p e c i f i c a t i o n s
(mm)
Reel
Tape Series øA øB øC W T Qty.
Paper Embossed LVM06 178.0±1.0 60.0+1.0 13.5±0.7 9.5±0.1 11.5±1.0 5,000
tape tape D0 P1 P0
Top Top LVM12 178.0±1.0 60.0+1.0 13.5±0.7 9.5±0.1 11.5±1.0 5,000
E
tape tape LVM25 178.0±1.5 60.0+1.0 13.0±0.5 13.0-±1.0 15.5±0.5 4,000
F W0
B øA

T0 T0 P2 A
ø1.4mm min.
LVM06 LVM25 Direction of feed (plastic tape only)
LVM12
øB
Series A B W0 E F P0 P1 P2 øD0 T0
LVM06 1.10±0.10 1.90±0.10 8.0±0.20 1.75±0.10 3.50±0.05 4.00±0.10 4.00±0.05 2.00±0.05 1.50+0.1,-0 0.70±0.10
LVM12 1.90±0.10 3.50±0.20 8.0±0.20 1.75±0.10 3.50±0.05 4.00±0.10 4.00±0.05 2.00±0.05 1.50+0.1,-0 0.85±0.10
LVM25 3.50±0.10 6.70±0.10 12.0±0.30 1.75±0.10 5.5±0.05 4.00±0.10 4.00±0.10 2.00±0.05 1.50+0.1,-0 1.20 max.
øC

W T
Or d er i n g i n f o rma t i o n
Not all TCR’s available in all resistance values. Please see characteristics chart above.
TCR
Z= 75ppm Standard Part Numbers
V= 50ppm
T= 100ppm RoHS Compliant LVM06FTR010E-TR LVM12FTR010E-TR LVM25FZR010E-TR
LVM06FTR015E-TR LVM12FTR015E-TR LVM25FVR015E-TR
LVM06FTR050E-TR LVM06FTR025E-TR
LVM06FTR050E-TR
LVM12FTR025E-TR
LVM12FTR050E-TR
LVM25FVR020E-TR
LVM25FVR025E-TR
LVM06FTR100E-TR LVM12FTR100E-TR LVM25FVR030E-TR
Series Case Size Tolerance Ohms Packaging LVM25FVR050E-TR
06 = 0603 D = 0.5% R030 = 0.030 TR=Tape and reel LVM25FVR100E-TR
12 = 1206 F = 1% R100 = 0.100
25 = 2512 G = 2%
J = 5%

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