Product Overview
The ASC_WA04/06 series offers general-purpose chip resistors arrays in various configurations, including convex and concave types. These compact and lightweight components are designed for reduced equipment size, lower assembly costs, and enhanced reliability. They are RoHS compliant and lead-free, making them suitable for a wide range of consumer electronics, EDP, computer applications, and telecommunications equipment. The resistors are constructed with a high-grade ceramic body and a resistive paste trimmed by laser, protected by a coating, and feature lead-free Tin end terminations for easy soldering.
Product Attributes
- Brand: ASC
- Certifications: RoHS compliant
- Material: High grade ceramic body (aluminum oxide)
- Color: Not specified
- Origin: Not specified
Technical Specifications
| Series No. | Size | Resistance Tolerance | Resistance Range | 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 | 1/16 W | 25V | 50V | 55/155/56 |
| WA04X(Convex) | 0402x4 (1005x4) | 5%, 1% | 3 ~ 1M Jumper 10 ~ 1M | 1/16 W | 50V | 100V | 55/155/56 |
| WA06X(Convex) | 0603x4 (1608x4) | 5%, 1% | 1 ~ 10M Jumper, 10 ~ 100K | 1/10 W | 50V | 100V | 55/155/56 |
| WA06W(Convex) | 0602x8 (1605x8) | 5%, 1% | 10 ~ 1M, Jumper, 10 ~ 1M | 1/16 W | 50V | 100V | 55/155/56 |
| WA06T(Concave) | 0603x4 (1608x4) | 5%, 1% | 10 ~ 1M, Jumper | 1/10 W | 50V | 100V | 55/155/56 |
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 values of nominal resistance are taken 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 operating temperature, refer to derating curves.
Mounting and Soldering
Suitable for automatic placement systems on ceramic substrates and PCBs. End terminations guarantee reliable contact. Can be immersed in a solder bath of 260C for 10 seconds. Tested for solderability at 235C for 2 seconds. No leaching at 260C for 30 seconds. Refer to Fig 4 for typical infrared soldering profiles.
Test and Requirements
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 for testing (Temperature: 15C to 35C, Relative humidity: 45% to 75%, Air pressure: 86kPa to 106 kPa). All soldering tests are performed with mildly activated flux.
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: x 4, Convex; Y: x 2, Convex; W: x 8, Convex; T: x 4, 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_)
Resistance code (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 per reel; Bulk packaging: 5000pcs per polybag.
WA06W: 12mm width paper taping, 5000pcs per reel; Bulk packaging: 5000pcs per polybag.
WA04X, WA04Y: 8mm width paper taping, 10,000pcs per 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, P1: 4.000.10, P0: Max. 1.0, D: Max. 1.0, T: Max. 0.6
WA04X
A: 2.200.20, B: 1.200.20, W: 8.000.30, F: 3.500.05, E: 1.750.10, P1: Max. 0.6, P0: Max. 0.6, D: Max. 1.0, T: Max. 0.6
WA04Y
A: 1.150.10, B: 1.150.10, W: 8.000.30, F: 3.500.05, E: 1.750.10, P1: Max. 0.6, P0: Max. 0.6, D: Max. 1.0, T: Max. 0.6
WA06W
A: 2.0 0.0 20 .4, B: 12 .0 0.0 80 .1, W: 12.000.10, F: 5.500.05, E: 1.750.10, P1: Max. 0.6, P0: Max. 0.6, D: Max. 1.0, T: Max. 0.6
2410121521_Walsin-WA04X514JTL_C171908.pdf
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