Product Overview
The ASC WA04/06 series offers general-purpose chip resistor arrays designed for surface mounting. These compact and lightweight components reduce final equipment size and lower assembly costs while enhancing reliability. They are RoHS compliant and lead-free. Available in convex and concave types, these resistors are constructed with a high-grade ceramic body and a resistive paste trimmed by laser, protected by a coating and tin-free end terminations for easy soldering. Applications include consumer electronics, EDP, and telecommunications.
Product Attributes
- Brand: ASC
- Material: High grade ceramic body (aluminum oxide)
- Certifications: RoHS compliant
- Type: Convex and Concave
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% | 3 ~ 1M, Jumper | 10 R 1M: 300 R<10, R>1M: 400 | 1/16 W | 25V | 50V | 55/155/56 |
| WA04X (Convex) | 0402x4 (1005x4) | 1% | 10 ~ 1M Jumper | 200 | 1/16 W | 50V | 100V | 55/155/56 |
| WA06X (Convex) | 0603x4 (1608x4) | 5% | 3 ~ 1M | 10 R 1M: 200 R<10, R>1M: -300~+500 | 1/10 W | 50V | 100V | 55/155/56 |
| WA06W (Convex) | 0602x8 (1605x8) | 1% | Jumper 10 ~ 100K | 100 | 1/16 W | 50V | 100V | 55/155/56 |
| WA06T (Concave) | 0603x4 (1608x4) | 5% | 10 ~ 1M, Jumper | 10 R 1M: 200 R<10, R>1M: -300~+500 | 1/10 W | 50V | 100V | 55/155/56 |
Dimensions (unit : mm)
| Series | L | W | T | P | A | Ta | Tb | B | C | G | D | H1 | H2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WA04Y | 1.00 0.10 | 1.00 0.10 | 0.35 0.10 | 0.65 0.10 | 0.34 0.10 | 0.20 0.15 | 0.25 0.17 | - | - | - | - | - | - |
| WA04X | 2.00 0.10 | 1.00 0.10 | 0.45 0.10 | 0.50 0.05 | 0.40 0.10 | - | - | 0.20 0.10 | 0.30 0.05 | 0.25 0.10 | - | - | - |
| WA06X | 3.20 0.10 | 1.60 0.10 | 0.50 0.10 | 0.80 0.10 | 0.60 0.10 | - | - | 0.30 0.10 | 0.40 0.10 | 0.30 0.20 | - | - | - |
| WA06W | 4.00 0.20 | 1.60 0.15 | 0.45 0.10 | 0.50 0.20 | - | - | - | 0.30 0.20 | - | 0.30 0.20 | 0.20 0.10 | 0.40 0.20 | 0.30 0.10 |
| WA06T | 3.20+0.20/-0.10 | 1.60+0.20/-0.10 | 0.60 0.10 | 0.80 0.10 | 0.60 0.15 | - | - | 0.35 0.15 | 0.50 0.15 | 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. No marking for WA04Y chip resistors array and E96 series resistance.
Test and Requirements
| Item | Requirement | Test Procedure | R/R max. | < 50m |
|---|---|---|---|---|
| Resistor Jumper DC resistance | Within the specified tolerance | Clause 4.5 | - | - |
| Temperature Coefficient of Resistance (T.C.R) | - | Clause 4.8 | - | - |
| Short time overload (S.T.O.L) | Permanent resistance change after a 5second application of a voltage 2.5 times RCWV or the maximum overload voltage specified in the above list, whichever is less. | Clause 4.13 | (2%+0.10) | - |
| Resistance to soldering heat(R.S.H) | Un-mounted chips completely immersed for 101second in a SAC solder bath at 2605C | Clause 4.18 | (1%+0.05) | - |
| Solderability | Un-mounted chips completely immersed for 20.5 second in a SAC solder bath at 2355 | Clause 4.17 | - | - |
| Temperature cycling | 30 minutes at -55C3C, 2~3 minutes at 20C+5C-1C, 30 minutes at +155C3C, 2~3 minutes at 20C+5C-1C, total 5 continuous cycles | Clause 4.19 | (1%+0.05) | - |
| Load life (endurance) | 1000 +48/-0 hours, loaded with RCWV or Vmax in chamber controller 702C, 1.5 hours on and 0.5 hours off | Clause 4.25 | (3%+0.10) For 10R<1M ; (5%+0.10) For R<10, R1M | - |
| Load life in Humidity | 1000 +48/-0 hours, loaded with RCWV or Vmax in humidity chamber controller at 40C2C and 90~95% relative humidity, 1.5hours on and 0.5 hours off | Clause 4.24 | (3%+0.10) For 10R<1M ; (5%+0.10) For R<10, R1M | - |
| Adhesion | Pressurizing force: 5N, Test time: 101sec. | Clause 4.32 | - | - |
| Insulation Resistance | Apply the maximum overload voltage (DC) for 1minute | Clause 4.6 | - | 10G |
| Dielectric Withstand Voltage | Apply the maximum overload voltage (AC) for 1 minute | Clause 4.7 | - | - |
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
The resistors have a catalogue number starting with . 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: 1. Reeled tape packaging: 8mm width paper taping, 5000pcs per reel. 2. Bulk packaging: 5000pcs per polybag.
WA06W: 1. Reeled tape packaging: 12mm width paper taping, 5000pcs per reel. 2. Bulk packaging: 5000pcs per polybag.
WA04X, WA04Y: 1. Reeled tape packaging: 8mm width paper taping, 10,000pcs per reel.
Paper Tape Specifications (unit :mm)
| Symbol | A | B | W | F | E |
|---|---|---|---|---|---|
| WA06X,WA06T | 3.600.20 | 2.000.20 | - | - | - |
| WA04X | 2.200.20 | 1.200.20 | 3.500.20 | - | - |
| WA04Y | 1.150.10 | 1.150.10 | 8.000.30 | 3.500.05 | 1.750.10 |
| WA06W | 2.0 | 0.0 | 20 | .4 | + |
| Symbol | P1 | P0 | D | T |
|---|---|---|---|---|
| WA06X,WA06T | 4.000.10 | Max. 1.0 | - | - |
| WA04X | Max. 0.6 | - | - | - |
| WA04Y | - | - | - | - |
| WA06W | 12 | .0 | 80 | .1 |
2410121521_Walsin-WA04X8R2JTL_C396837.pdf
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