Product Overview
The ASC WA04/06 series offers general-purpose chip resistor arrays designed for surface mounting. These resistors are constructed with a high-grade ceramic body and feature internal metal electrodes connected by a laser-trimmed resistive paste. They provide advantages such as small size, light weight, reduced equipment size, lower assembly costs, and higher reliability. Applications include consumer electrical equipment, EDP, computer applications, and telecommunications. Products are RoHS compliant and lead-free.
Product Attributes
- Brand: ASC
- Material: High grade ceramic body (aluminum oxide)
- Certifications: RoHS compliant
- Color: Not specified
- Origin: Not specified
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 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 R 1M: 200; R<10, R>1M: - | 1/10 W | 50V | 100V | 55/155/56 |
Dimensions (unit : mm)
| Series | L | W | T | P | A | Ta | Tb | B | C | D | G | 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 | 0.40 0.20 | 0.30 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 | - | 0.20 0.10 | 0.30 0.20 | 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. 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 ambient temperature; refer to derating curves.
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 conditions. End terminations guarantee reliable contact.
Soldering Condition
Robust construction allows immersion in a solder bath of 260C for 10 seconds. Can be mounted on one side of a PCB with other discrete components on the reverse. Tested for solderability at 235C for 2 seconds. No leaching condition: 260C for 30 seconds. Refer to Fig 4 for typical soldering profiles.
Test and Requirements (JIS C 5201-1 : 1998)
Tests are carried out according to IEC publication 115-8, category LCT/UCT/56. Also meets EIA, EIAJ and JIS requirements. Standard atmospheric conditions: Temperature: 15C to 35C, Relative humidity: 45% to 75%, Air pressure: 86kPa to 106 kPa. All soldering tests performed with mildly activated flux.
| Requirement | Test Procedure | Specification |
| Resistor Jumper DC resistance | Clause 4.5 | Within the specified tolerance. < 50m |
| Temperature Coefficient of Resistance (T.C.R) | Clause 4.8 | ( R2-R1 ) / ( R1 t ) 10^6 (ppm/C). Refer to QUICK REFERENCE DATA. N/a |
| Short time overload (S.T.O.L) | Clause 4.13 | R/R max. (2%+0.10). < 50m |
| Resistance to soldering heat(R.S.H) | Clause 4.18 | R/R max. (1%+0.05). no visible damage. < 50m |
| Solderability | Clause 4.17 | good tinning (>95% covered), no visible damage. |
| Temperature cycling | Clause 4.19 | R/R max. (1%+0.05). no visible damage. < 50m |
| Load life (endurance) | Clause 4.25 | R/R max.(3%+0.10) For 10R<1M ; R/R max.(5%+0.10) For R<10, R1M. < 50m |
| Load life in Humidity | Clause 4.24 | R/R max.(3%+0.10) For 10R<1M ; R/R max.(5%+0.10) For R<10, R1M. < 50m |
| Adhesion | Clause 4.32 | No remarkable damage or removal of the terminations. |
| Insulation Resistance | Clause 4.6 | R10G |
| Dielectric Withstand Voltage | Clause 4.7 | 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 : 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/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)
| Symbol | A | B | W | F | E | P1 | P0 | D | T |
| WA06X,WA06T | 3.600.20 | 2.000.20 | 8.000.30 | 3.500.05 | 1.750.10 | 4.000.10 | Max. 1.0 | - | - |
| WA04X | 2.200.20 | 1.200.20 | 8.000.30 | 3.500.05 | 1.750.10 | - | Max. 0.6 | - | - |
| WA04Y | 1.150.10 | 1.150.10 | 8.000.30 | 3.500.05 | 1.750.10 | - | Max. 0.6 | - | - |
| WA06W | 2.0 | 0.0 | 12.000.10 | 5.500.05 | 1.750.10 | 20.4+0/-0.2 | 80.1+0/-0.2 | 12.0 | - |
2410121521_Walsin-WA04X360JTL_C171903.pdf
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