ASC_WA04/06 Series Chip Resistors Array
The ASC_WA04/06 series offers general purpose chip resistors arrays in various configurations, including convex and concave types. These components are designed for reduced equipment size, lower assembly costs, and enhanced reliability, making them suitable for a wide range of consumer electronics, EDP, and telecommunication applications. Constructed with a high-grade ceramic body and a laser-trimmed resistive paste, they provide stable performance and are RoHS compliant and lead-free.
Product Attributes
- Brand: ASC
- Certifications: RoHS compliant
- Material: High grade ceramic body (aluminum oxide)
- Termination: Tin (lead free) alloy
Technical Specifications
| Series No. | Size | Resistance Tolerance | Resistance Range | TCR (ppm/C) | Max. Dissipation at Tamb=70C | Max. Operation Voltage (DC or RMS) | Max. Overload Voltage | Climatic Category |
| WA04Y (Convex) | 0402x2 (1005x2) | 5%, 1% | 3 ~ 1M, Jumper 10 ~ 1M | 10 R 1M: 300; R<10, R>1M: 400 | 1/16 W | 25V | 50V | 55/155/56 |
| WA04X (Convex) | 0402x4 (1005x4) | 5%, 1% | 3 ~ 1M Jumper 10 ~ 1M | 10 R 1M: 300; R<10, R>1M: 400 | 1/16 W | 50V | 100V | 55/155/56 |
| WA06X (Convex) | 0603x4 (1608x4) | 5%, 1% | 1 ~ 10M Jumper, 10 ~ 100K | 10 R 1M: 200; R<10, R>1M: - | 1/10 W | 50V | 100V | 55/155/56 |
| WA06W (Convex) | 0602x8 (1605x8) | 5%, 1% | 10 ~ 1M, Jumper 10 ~ 1M | 10 R 1M: 200; R<10, R>1M: -300~+500 | 1/16 W | 50V | 100V | 55/155/56 |
| WA06T (Concave) | 0603x4 (1608x4) | 5%, 1% | 10 ~ 1M, Jumper 10 ~ 1M | 10 R 1M: 200; R<10, R>1M: -300~+500 | 1/10 W | 50V | 100V | 55/155/56 |
Note: Climatic category refers to IEC 60068. Max. Operation Voltage (RCWV) is determined by Value Resistance Power Rated RCWV = or Max. RCWV listed above, whichever is lower.
Dimensions (unit : mm)
WA04Y
L: 1.00 0.10, W: 1.00 0.10, T: 0.35 0.10, P: 0.65 0.10, A: 0.34 0.10, Ta: 0.20 0.15, Tb: 0.25 0.17
WA04X
L: 2.00 0.10, W: 1.00 0.10, T: 0.45 0.10, P: 0.50 0.05, A: 0.40 0.10, B: 0.20 0.10, C: 0.30 0.05, G: 0.25 0.10
WA06X
L: 3.20 0.10, W: 1.60 0.10, T: 0.50 0.10, P: 0.80 0.10, A: 0.60 0.10, B: 0.30 0.10, C: 0.40 0.10, G: 0.30 0.20
WA06W
L: 4.00 0.20, W: 1.60 0.15, T: 0.45 0.10, B: 0.30 0.20, G: 0.30 0.20, D: 0.20 0.10, P: 0.50 0.20, H1: 0.40 0.20, H2: 0.30 0.10
WA06T
L: 3.20+0.20/-0.10, W: 1.60+0.20/-0.10, T: 0.60 0.10, P: 0.80 0.10, A: 0.60 0.15, B: 0.35 0.15, C: 0.50 0.15, G: 0.50 0.15
Marking
3-digits marking for E24 series 1% ,5% products. For values up to 9.1 the R is used as a decimal point. For values of 10.0 or greater, the first 2 digits apply to the resistance value and the third indicates the number of zeros to follow. Example: 4.7 = 4R7, 10 = 100, 100 = 101, 6800 = 682, 47000 = 473. No marking for WA04Y chip resistors array and E96 series resistance.
Functional Description
Standard nominal resistance values are from the E24 series for 5% tolerance and E24/E96 series for 1% tolerance, in accordance with IEC publication 60063. Power dissipation is dependent on ambient temperature; refer to derating curves.
Mounting and Soldering
Suitable for automatic placement systems on ceramic substrates and PCBs. End terminations ensure reliable soldering. Can withstand immersion in a solder bath of 260C for 10 seconds. Tested for solderability at 235C for 2 seconds. No leaching at 260C for 30 seconds.
Test and Requirements (JIS C 5201-1 : 1998)
Tests are carried out according to IEC publication 115-8, category LCT/UCT/56, and meet EIA, EIAJ, and JIS requirements. Standard atmospheric conditions apply unless otherwise specified.
| Requirement Test | Procedure | Max. Change (R/R) | Limit |
| DC Resistance | Clause 4.5 | Within specified tolerance | < 50m (for Jumper) |
| Temperature Coefficient of Resistance (T.C.R) | Clause 4.8 | (R2-R1)/R1 10^6 / (t2-t1) (ppm/C) | Refer to QUICK REFERENCE DATA |
| Short Time Overload (S.T.O.L) | Clause 4.13 | (2%+0.10) | < 50m |
| Resistance to Soldering Heat (R.S.H) | Clause 4.18 | (1%+0.05) | < 50m, no visible damage |
| Solderability | Clause 4.17 | N/A | good tinning (>95% covered), no visible damage |
| Temperature Cycling | Clause 4.19 | (1%+0.05) | < 50m, no visible damage |
| Load Life (Endurance) | Clause 4.25 | (3%+0.10) for 10R<1M; (5%+0.10) for R<10, R1M | < 50m |
| Load Life in Humidity | Clause 4.24 | (3%+0.10) for 10R<1M; (5%+0.10) for R<10, R1M | < 50m |
| Adhesion | Clause 4.32 | N/A | No remarkable damage or removal of terminations |
| Insulation Resistance | Clause 4.6 | N/A | 10G |
| Dielectric Withstand Voltage | Clause 4.7 | N/A | No breakdown or flashover |
Test Condition for Jumper (0 )
| Item | WA04Y | WA04X | WA06X | WA06W | WA06T |
| Power Rating At 70C | 1/16W | 1/16W | 1/10W | 1/16W | 1/10W |
| Resistance | MAX.50m | MAX.50m | MAX.50m | MAX.50m | MAX.50m |
| Rated Current | 1A | 1A | 1A | 2A | 1A |
| Peak Current | 1.5A | 1.5A | 3A | 3A | 3A |
| Operating Temperature | -55~155C | -55~155C | -55~155C | -55~155C | -55~155C |
Catalogue Numbers
Format: WA X XXXX X X L
Size code: 06: 0603 (1608), 04: 0402(1005)
Type code: X: x4 Convex, Y: x2 Convex, W: x8 Convex, T: x4 Concave
Resistance code: 5% E24: 2 significant digits followed by no. of zeros and a blank (e.g., 4.7 =4R7_, 10 =100_, 220 =221_, Jumper =000_). 1%, E24+E96: 3 significant digits followed by no. of zeros (e.g., 100 =1000, 37.4K =3742).
Tolerance: F: 1%, J: 5%, P: Jumper
Packaging code: T: 7 Reel taping, B: Bulk
Termination code: L = Sn base (lead free)
Packaging
WA06X, WA06T: 8mm width paper taping, 5000pcs/reel; Bulk: 5000pcs/polybag.
WA06W: 12mm width paper taping, 5000pcs/reel; Bulk: 5000pcs/polybag.
WA04X, WA04Y: 8mm width paper taping, 10,000pcs/reel.
Paper Tape Specifications (unit :mm)
WA06X,WA06T: A: 3.600.20, B: 2.000.20, W: 8.000.30, F: 3.500.05, E: 1.750.10
WA04X: A: 2.200.20, B: 1.200.20, W: 8.000.30, F: 3.500.05, E: 1.750.10
WA04Y: A: 1.150.10, B: 1.150.10, W: 8.000.30, F: 3.500.05, E: 1.750.10
WA06W: A: 4.000.20, B: 2.000.20, W: 12.000.10, F: 5.500.05, E: 1.750.10
P1: 4.000.10 (WA06X,WA06T), Max. 0.6 (WA04X)
P0: Max. 1.0 (WA06X,WA06T)
D: Max. 1.0 (WA04X)
T: 12.000.10 (WA06W)
2410121521_Walsin-WA06X1000FTL_C396838.pdf
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chip resistor array Walsin WA06X1000FTL with tin alloy termination and laser trimmed resistive paste Images
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