Product Overview
The ASC WA04/06 series offers general-purpose chip resistor arrays designed for various electronic applications. These components are characterized by their small size, light weight, and reduced final equipment size, leading to lower assembly costs and higher reliability. They are RoHS compliant and lead-free. The construction involves a high-grade ceramic body with internal metal electrodes and a laser-trimmed resistive paste, protected by a coating and tin-plated end terminations for easy soldering. Available in convex and concave types, these resistors are suitable for consumer electronics, EDP, computer applications, and telecommunications.
Product Attributes
- Brand: ASC
- Material: High grade ceramic body (aluminum oxide)
- Certifications: RoHS compliant, Lead-free products
- 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: - | 1/16 W | 50V | 100V | 55/155/56 |
| WA06X (Convex) | 0603x4 (1608x4) | 5%, 1% | 1 ~ 10M Jumper, 10 ~ 100K | 10 R 1M: 200; R<10, R>1M: -300~+500 | 1/10 W | 50V | 100V | 55/155/56 |
| WA06W (Convex) | 0602x8 (1605x8) | 5%, 1% | 10 ~ 1M, 10 ~ 1M | 10 R 1M: 100; R<10, R>1M: - | 1/16 W | 50V | 100V | 55/155/56 |
| WA06T (Concave) | 0603x4 (1608x4) | 5%, 1% | Jumper, 10 ~ 100K, 10 ~ 1M | 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.
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 solder bath of 260C for 10 seconds. Tested for solderability at 235C for 2 seconds. No leaching at 260C for 30 seconds.
Test and Requirements (JIS C 5201-1 : 1998)
| Requirement | Test Procedure | R/R max. | Limit |
| 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 1/(t2-t1) ) 10^6 (ppm/C) | Refer to QUICK REFERENCE DATA |
| Short time overload (S.T.O.L) | Clause 4.13 | (2%+0.10) | < 50m |
| Resistance to soldering heat(R.S.H) | Clause 4.18 | (1%+0.05) | < 50m |
| Solderability | Clause 4.17 | (good tinning (>95% covered)) | no visible damage |
| Temperature cycling | Clause 4.19 | (1%+0.05) | < 50m |
| Load life (endurance) | Clause 4.25 | (3%+0.10) For 10R<1M; (5%+0.10) For R<10, R1M | < 50m |
| Load life in Humidity | Clause 4.24 | (3%+0.10) For 10R<1M; (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), 04 (0402). Type code: X (x4 Convex), Y (x2 Convex), W (x8 Convex), T (x4 Concave). Resistance code: E24 (5%), E24+E96 (1%). Tolerance: F (1%), J (5%), P (Jumper). Packaging code: T (7 Reel), B (Bulk). Termination code: L (Sn base).
Packaging
Reeled tape packaging: 8mm width paper taping (5000pcs/reel for WA06X, WA06T; 10,000pcs/reel for WA04X, WA04Y), 12mm width paper taping (5000pcs/reel for WA06W). Bulk packaging: 5000pcs per polybag.
2410121521_Walsin-WA06X2001FTL_C396840.pdf
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High grade ceramic body Walsin WA06X2001FTL chip resistor array with RoHS compliance and lead free materials Images
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