Ultra-Low Ohmic Resistors for Current Detection
PMR25
Features 1) Ultra low-ohmic resistance range (1m~) 2) Improved current detection accuracy by trimming-less structure. Highly recommended for large current / High speed switching circuit. 3) Completely Pb free product 4) ISO9001- / ISO/TS 16949-approved Rating
Item Rated power Conditions For resistors operated at the ambient temperature in excess of 70℃, the load shall be derated in accordance with Fig.1
100 80
POWER LOAD (%)
Specifications 1W at 70°C
60 40 20 0
−55
0
70
100
125
155
AMBIENT TEMPERATURE (°C)
Fig.1 Rated voltage Rated current Rated voltage and current are determined from the following. E= P×R E= P / R Nominal resistance Operating temperature See Table 1. −55°C to +155°C E: Rated voltage (V) I : Rated current (A) P: Rated power (W) R: Resistance (Ω)
Table.1 RESISTANCE (mΩ) 1 to 4 5 TOLERANCE F (±1%) J (±5%) SPECIAL CODE V ±100 U TEMPERATURE COEFFICIENT (ppm / ˚C)
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2011.03 - Rev.E
PMR25
Characteristics
Item Resistance Guaranteed value Resistor type F : ±1% J : ±5% Test conditions (JIS C 5201-1) JIS C 5201-1 4.5 Measuring method : Measure under terminations by 4 probes. Fig.2 (Under terminations) probes
Data Sheet
Variation of resistance with temperature Overload
See Table.1 ± (2.0%+0.0005Ω)
JIS C 5201-1 4.8 Measurement : 25 / -55 / +25 / +125°C JIS C 5201-1 4.13 Rated voltage (current) ×2.5, 2s. JIS C 5201-1 4.17 Rosin·Ethanol (25%WT) Soldering condition : 235±5°C Duration of immersion : 2.0±0.5s. JIS C 5201-1 4.18 Soldering condition : 260±5°C Duration of immersion : 10±1s. JIS C 5201-1 4.19 Test temp. : −55°C to +125°C 5cyc JIS C 5201-1 4.24 40°C, 93%RH Test time : 56days JIS C 5201-1 4.25.1 Rated power, 70°C 1.5h : ON − 0.5h : OFF Test time : 1,000h to 1,048h JIS C 5201-1 4.25.3 155°C Test time : 1,000h to 1,048h JIS C 5201-1 4.29 23°C±5°C Solvent : 2-propanol JIS C 5201-1 4.33
Solderability
A new uniform coating of minimum of 95% of the surface being immersed and no soldering damage. ± (1.0%+0.0005Ω) No remarkable abnormality on the appearance. ± (1.0%+0.0005Ω) ± (3.0%+0.0005Ω)
Resistance to soldering heat Rapid change of temperature Damp heat, steady state
± (3.0%+0.0005Ω) Endurance at 70°C ± (3.0%+0.0005Ω) Endurance ± (0.5%+0.0005Ω)
Component Solvent Resistance Bend strength of the end face plating
Without open.
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c ○ 2011 ROHM Co., Ltd. All rights reserved.
2/3
2011.03 - Rev.E
PMR25
Dimensions&Construction
(The Surface)
Resistance
Data Sheet
Measure
L ± 0.20 W ± 0.20 t ± 0.15 0.52 0.52 3.20 2.50 0.42 0.32 0.32 0.50 a ± 0.20 b ± 0.20 0.90 1.00 0.80 0.90 0.90
(Unit:mm)
2L00
a
c ± 0.20
W
1mΩ 2mΩ 3mΩ 4mΩ 5mΩ
1.95
(The back)
c
No.
Material
Resistive metal element(Ni-Cu/Ni-Cr Alloy) Primary electrode(Cu) Middle electrode(Ni) External electrode(Sn)
b
(The cross section)
Overcoat(Resin:Black)
t
Marking(Resin:Yellow)
L
Part No. Explanation
PMR2 5
Part No.
HZP
J
V
Special part number
U V 5mΩ 1 to 4mΩ
Resistance tolerance
F J
Nominal resistance
Resistance code, 3 or 4 digits.
Resistance tolerance F J
Resistance Value (Ω) 1mΩ 2mΩ 3mΩ 4mΩ 5mΩ
±1% ±5%
Resistance code : : 4 digits 3 digits
Resistance Tolerance J F 1L0 1L00 2L0 2L00 3L0 3L00 4L0 4L00 5L0 5L00
Packaging Specifications Code
Part No. PMR25 Code HZP Resistance tolerance J(±5%) F(±1%) Packaging specifications Embossed tape (4mm Pitch) Reel Basic ordering unit (pcs) 2,000
φ180mm (7in.)
R eel ( φ 180) : Compatible with JEITA standard "EIAJ ET-7200B" : Standard product
Packaging
Reel
P0
Taping
P2
φD
0
08
06
04
02
B0
A
B
D
W F
E
K
02
04
06
08
A0
P1
C Label EIAJ ET-7200B compliant
(Unit : mm)
W 8.0±0.3 D0
F 3.5±0.05 P0 4.0±0.1
E 1.75±0.1 P1 4.0±0.1
A0 3.0±0.1 P2 2.0±0.05
B0 3.5±0.1 K Max. 1.1
(Unit : mm) A B C D
0 φ180 −1.5
+1 φ60 0
+1.0 9 0
φ13±0.2
φ1.5 +0.1 0
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3/3
2011.03 - Rev.E
Notice
Notes
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http://www.rohm.com/contact/
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R1120A
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