WR02X_J WALSIN | Alldatasheet
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Page 1 of 7 ASC_WR02X_J_AUTO_V01 May - 2014 WR02X(W)_J Thick Film General purpose chip resistors Automotive AEC Q-200 compliant Size 0201 *Contents in this sheet are subject to change without prior notice.
Page 2 of 7 ASC_WR02X_J_AUTO_V01 May - 2014 FEATURE 1. Automotive grade AEC Q-200 compliant with 100% CCD visual inspection 2. High reliability and stability 3. Reduced size of final equipment 4. Suitable for high density print circuit board assembly 5. Higher component and equipment reliability 6. Lead free product APPLICATION
- Automotive
- Mobile phone
- PDA
- Camcorders
- Palmtop computers
- Hybrid module
DESCRIPTION
The resistors are constructed in a high grade ceramic body (aluminum oxide). Internal metal electrodes are added at each end and connected by a resistive paste that is applied to the top surface of the substrate. The composition of the paste is adjusted to give the approximate resistance required and the value is trimmed to nominated value within tolerance which controlled by laser trimming of this resistive layer. The resistive layer is covered with a protective coat. Finally, the two external end terminations are added. For ease of soldering the outer layer of these end terminations is a pure Tin. Fig 1. Construction of Chip-R WR02X
Page 3 of 7 ASC_WR02X_J_AUTO_V01 May - 2014 QUICK REFERENCE DATA Item General Specification Series No. WR02X(W)_J Size code 0201(0603) Resistance Range 1Ω ~10M Ω ( ±5% tolerance ), Jumper 1Ω ~ 10MΩ ( ±1% tolerance ) Resistance Tolerance ±1% E96/E24 ±5% E24 TCR (ppm/ °C) 10 Ω - 10M Ω , ≤±200ppm 4.02 - 9.76 Ω , +350 ~ -100ppm 1 – 3.92 Ω , +600 ~ -200ppm Max. dissipation @ T amb =70 °C 1/20 W Max. Operation Voltage 25V Max. Overload Voltage 50V Operation temperature -55 ~ +125’C Note : 1. This is the maximum voltage that may be continuously supplied to the resistor element, see “IEC publication 60115-8” 2. Max. Operation Voltage : So called RCWV (Rated Continuous Working Voltage) is determined by Value Resistance Power Rated RCWV ×= or Max. RCWV listed above, whichever is lower. DIMENSION(unit : mm) WR02X(W) L 0.60 ± 0.03 W 0.30 ± 0.03 T 0.23 ± 0.03 Tb 0.15 ± 0.05 Tt 0.10 ± 0.05 MARKING WR02X(W) has no marking. P rotective coat R esistive layer E nd termination Ceramic S ubstrate T Tb Tt T W L
Figure 2. Maximum dissipation in percentage of rated power automatic placement systems. Chip placement can be on ceramic substrates and printed-circuit boards (PCBs). Electrical connection to the circuit is by individual soldering condition. The end terminations guarantee a reliable contact. discrete components on the reverse (mixed PCBs). any damage are given in Fig 3.
Page 5 of 7 ASC_WR02X_J_AUTO_V01 May - 2014 CATALOGUE NUMBERS The resistors have a catalogue number starting with : WR02 X 472_ J A L J Size code WR02 : 0201 Type code X : Normal W : 1% For <10 Ω / >1M Ω Resistance code 5%, E24: 2 significant digits followed by no. of zeros 100 Ω = 101_ 10K Ω = 103 1%, E24+E96: 3 significant digits followed by no. of zeros 100Ω =1000 37.4K Ω =3742 Tolerance J : ±5% F : ±1% P : Jumper Packaging code A : 7” Reeled (15Kpcs/Reel) T : 7” Reeled (10Kpcs/Reel) D : 7” Reeled (20Kpcs/Reel) G : 13” Reeled (70Kpcs/Reel) Termination code L = Sn base (lead free) Special code J = Automotive grade & 100% CCD visual inspection
Page 6 of 7 ASC_WR02X_J_AUTO_V01 May - 2014 TEST AND REQUIREMENTS (AEC Q-200 REV.D 2010) REQUIREMENT TEST PROCEDURE / TEST METHOD Resistor 0ΩΩ ΩΩ
Electrical Characteristics
JISC5201-1: 1998 Clause 4.8 - DC resistance values measurement - Temperature Coefficient of Resistance (T.C.R) Natural resistance change per change in degree centigrade. ( ) 12 1 12 10 ×− ttR RR (ppm/ °C) t 1 : 20° C+5° C-1° C R 1 : Resistance at reference temperature (20° C+5° C/- 1° C) R 2 : Resistance at test temperature (-55° C or +125° C) Within the specified tolerance Refer to “QUICK REFERENCE DATA” <50m Ω Resistance to soldering heat(R.S.H) AEC Q200-15 Un-mounted chips completely immersed for 10 ±1second in a SAC solder bath at 260 ℃±5ºC ΔR/R max. ±(1%+0.05 Ω) no visible damage <50m Ω Solderability AEC Q200-18 a. 4hrs @ 155’C, 235’C , 5 secs b. 8hrs steam, 235’C, 5secs 95% coverage min., good tinning and no visible damage Temperature cycling AEC Q200-4 30 minutes at -55 °C ±3°C, 2~3 minutes at 20° C+5° C-1° C, 30 minutes at +125 °C ±3°C, 2~3 minutes at 20° C+5° C- 1° C, total 1000 continuous cycles ΔR/R max. ±(1%+0.05 Ω ) < 50m Ω Bias Humidity AEC Q200-7 1000 +48/-0 hours, in humidity chamber controller at +85 ℃/85%RH, 10% rated power ΔR/R max. ±(5%+0.10 Ω ) < 50m Ω Operational Life MIL-STD-202 method 108 1000+48/-0 hours; 35% of operation power, 125 ±2°C ΔR/R max. ±(5%+0.10 Ω ) < 50m Ω High Temperature Exposure AEC Q200-3 1000 hrs @ 125 ℃, un-powered ΔR/R max. ±(5%+0.10 Ω ) < 50m Ω Bending strength AEC Q200 -21 Resistors mounted on a 90mm glass epoxy resin PCB(FR4), bending once 2mm for 60sec. No visual damaged, ΔR/R max. ±(1%+0.05 Ω ) < 50m Ω Terminal strength AEC Q200-22 Pressurizing force: 3N, Test time: 10 ±1sec. No remarkable damage or removal of the terminations Vibration AEC Q200-14 5 g's for 20 min , 12 cycles each of 3 orientations △R/R max ≦± (1%+0.05 Ω) and no visible damage < 50m Ω Mechanical Shock AEC Q200-13 Shock machine, half sine, 100G, 6msec, XX'YY'ZZ', 10times each △R/R max ≦± (1%+0.05 Ω) and no visible damage < 50m Ω ESD (HBM) AEC Q200-002 Human body model, 1.5 Kohm, 100 pF, 0.4KV ΔR/R max. ±(5%+0.10 Ω ) < 50m Ω
Page 7 of 7 ASC_WR02X_J_AUTO_V01 May - 2014 PACKAGING Paper Tape specifications (unit :mm) Series No. A B W F E Series No. P1 P0 Φ D T 0 . 050 . 1+ Φ 0.45 ±0.05 Reel dimensions Symbol A B C D Taping quantity and Tape material - Chip resistors 10,000 / 15,000 / 20,000 pcs 7” Reel, Paper tape. - Chip resistors 70,000 pcs 13” Reel, Paper tape.