Product Overview
The ASC_WA04/06 series offers general-purpose chip resistor 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.
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 | 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 | 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
| Series | L (mm) | W (mm) | T (mm) | P (mm) | A (mm) | Ta (mm) | Tb (mm) | B (mm) | C (mm) | G (mm) | D (mm) | H1 (mm) | H2 (mm) |
| 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.
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.
Mounting and Soldering
Suitable for automatic placement systems on ceramic substrates and PCBs. End terminations ensure reliable contact. Can withstand immersion in a solder bath of 260C for 10 seconds. Tested for solderability at 235C for 2 seconds.
Test and Requirements (JIS C 5201-1 : 1998)
| Requirement Test | Procedure | Max. Change (R/R) | Limit |
| DC Resistance | Measured at specified test voltages | Within specified tolerance | < 50m (Jumper) |
| Temperature Coefficient of Resistance (T.C.R) | Natural resistance change per degree centigrade | Refer to QUICK REFERENCE DATA | N/a |
| Short Time Overload (S.T.O.L) | 5-second application of 2.5x RCWV or max overload voltage | (2%+0.10) | < 50m |
| Resistance to Soldering Heat (R.S.H) | Immersed in SAC solder bath at 2605 for 101 sec | (1%+0.05) | < 50m, no visible damage |
| Solderability | Immersed in SAC solder bath at 2355 for 20.5 sec | Good tinning (>95% covered), no visible damage | |
| Temperature Cycling | -55C to +155C, 5 cycles | (1%+0.05) | < 50m, no visible damage |
| Load Life (Endurance) | 1000 hours at 702C with RCWV or Vmax | (3%+0.10) for 10R<1M; (5%+0.10) for R<10, R1M | < 50m |
| Load Life in Humidity | 1000 hours at 40C2C and 90~95% RH with RCWV or Vmax | (3%+0.10) for 10R<1M; (5%+0.10) for R<10, R1M | < 50m |
| Adhesion | Pressurizing force: 5N, Test time: 101sec | No remarkable damage or removal of terminations | |
| Insulation Resistance | Apply max overload voltage (DC) for 1 minute | 10G | |
| Dielectric Withstand Voltage | Apply max overload voltage (AC) for 1 minute | 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
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_). 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 packaging: 5000pcs/polypag.
WA06W: 12mm width paper taping, 5000pcs/reel; Bulk packaging: 5000pcs/polypag.
WA04X, WA04Y: 8mm width paper taping, 10,000pcs/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 | 12.0 | 12.000.10 |
| Symbol | P1 | P0 | D | T |
| WA06X,WA06T | 4.000.10 | Max. 1.0 | ||
| WA04X | Max. 0.6 | |||
| WA04Y | ||||
| WA06W | 5.500.05 | 1.750.10 |
2410121521_Walsin-WA04X333JTL_C431861.pdf
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