Product Overview
The ASC WA04/06 series offers general-purpose chip resistor arrays designed for surface mounting. These components provide advantages such as small size, light weight, 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 | 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: 200; R<10, R>1M: -300~+500 | 1/16 W | 50V | 100V | 55/155/56 |
| WA06X (Convex) | 0603x4 (1608x4) | 5%, 1% | 1 ~ 10M Jumper, 10 ~ 100K | 10 R 1M: 100; 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: - | 1/10 W | 50V | 100V | 55/155/56 |
Dimensions (unit : mm)
WA04Y
| Symbol | L | W | T | P | A | Ta | Tb |
| Value | 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
| Symbol | L | W | T | P | A | B | C | G |
| Value | 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
| Symbol | L | W | T | P | A | B | C | G |
| Value | 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 0.05 | 0.30 0.20 |
WA06W
| Symbol | L | W | T | B | G | D | P | H1 | H2 |
| Value | 4.00 0.20 | 1.60 0.15 | 0.45 0.10 | 0.30 0.20 | 0.30 0.20 | 0.20 0.10 | 0.50 0.20 | 0.40 0.20 | 0.30 0.10 |
WA06T
| Symbol | L | W | T | P | A | B | C | G |
| Value | 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-digit 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
Product Characterization
Standard values of nominal resistance are taken from the E24 series for resistors with a tolerance of 5%, and from the E24/E96 series for resistors with a tolerance of 1%. Values conform to IEC publication 60063.
Derating
Power dissipation is dependent on operating temperature. Refer to Fig.3 for maximum dissipation as a function of ambient temperature.
Mounting
Suitable for automatic placement systems due to their rectangular shapes and small tolerances. Can be mounted on ceramic substrates and printed-circuit boards (PCBs). Electrical connection is by individual soldering. End terminations ensure reliable contact.
Soldering Condition
Can be immersed in a solder bath of 260C for 10 seconds. Surface Mount Resistors are tested for solderability at 235C for 2 seconds. Test condition for no leaching is 260C for 30 seconds. Refer to Fig 4 for typical soldering profiles.
Test and Requirements
| Item | Requirement Test Procedure | Test Condition | R/R max. | Limit |
| Resistor Jumper DC resistance | Clause 4.5 | Measured at specified test voltages | Within the specified tolerance | < 50m |
| Temperature Coefficient of Resistance (T.C.R) | Clause 4.8 | t1 : 20C+5C-1C | (R2-R1)/R1 10^6 / (t2-t1) (ppm/C) | Refer to QUICK REFERENCE DATA |
| Short time overload (S.T.O.L) | Clause 4.13 | 5 second application of 2.5 times RCWV or max. overload voltage | (2%+0.10) | < 50m |
| Resistance to soldering heat(R.S.H) | Clause 4.18 | 101 second in SAC solder bath at 2605C | (1%+0.05) | no visible damage < 50m |
| Solderability | Clause 4.17 | 20.5 second in SAC solder bath at 2355 | N/A | good tinning (>95% covered), no visible damage |
| Temperature cycling | Clause 4.19 | 5 continuous cycles (-55C to +155C) | (1%+0.05) | no visible damage < 50m |
| Load life (endurance) | Clause 4.25 | 1000 hours at 702C, loaded with RCWV or Vmax | (3%+0.10) for 10R<1M; (5%+0.10) for R<10, R1M | < 50m |
| Load life in Humidity | Clause 4.24 | 1000 hours at 40C2C and 90~95% RH, loaded with RCWV or Vmax | (3%+0.10) for 10R<1M; (5%+0.10) for R<10, R1M | < 50m |
| Adhesion | Clause 4.32 | Pressurizing force: 5N, Test time: 101sec. | N/A | No remarkable damage or removal of terminations. |
| Insulation Resistance | Clause 4.6 | Apply max. overload voltage (DC) for 1 minute | N/A | R10G |
| Dielectric Withstand Voltage | Clause 4.7 | Apply max. overload voltage (AC) for 1 minute | 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), 04 (0402)
Type code: X (x4 Convex), Y (x2 Convex), W (x8 Convex), T (x4 Concave)
Resistance code: 5% E24 (2 digits + no. of zeros, e.g., 4R7_, 100_, 221_, Jumper = 000_); 1% E24+E96 (3 digits + no. of zeros, e.g., 1000, 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
- Reeled tape packaging: 8mm width paper taping, 5000pcs per reel.
- Bulk packaging: 5000pcs per polybag
WA06W
- Reeled tape packaging: 12mm width paper taping, 5000pcs per reel.
- Bulk packaging: 5000pcs per polybag
WA04X, WA04Y
- Reeled tape packaging: 8mm width paper taping, 10,000pcs per reel.
Paper Tape Specifications (unit :mm)
WA06X, WA06T
| Symbol | A | B | W | F | E | P1 | P0 | D | T |
| Value | 3.600.20 | 2.000.20 | 8.000.30 | 3.500.05 | 1.750.10 | 4.000.10 | Max. 1.0 |
WA04X
| Symbol | A | B | W | F | E | P1 | P0 | D | T |
| Value | 2.200.20 | 1.200.20 | 8.000.30 | 3.500.05 | 1.750.10 |
WA04Y
| Symbol | A | B | W | F | E | P1 | P0 | D | T |
| Value | 1.150.10 | 1.150.10 | 8.000.30 | 3.500.05 | 1.750.10 |
WA06W
| Symbol | A | B | W | F | E | P1 | P0 | D | T |
| Value | 12.000.10 | 5.500.05 | 1.750.10 | Max. 1.0 |
2410121521_Walsin-WA04X680JTL_C171910.pdf
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