Product Overview
The ASC_WA04/06 series offers general-purpose chip resistor arrays designed for high reliability and reduced equipment size. These components are ideal for surface-mounted applications, providing lower assembly costs and enhanced equipment reliability. They are RoHS compliant and lead-free, making them suitable for a wide range of consumer electronics, EDP, and telecommunication applications.
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 (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-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 resistors with a tolerance of 5%, and E24/E96 series for resistors with a tolerance of 1%. The power dissipation capability of the resistor is dependent on the operating temperature, as illustrated in Fig. 3.
Mounting and Soldering
These Surface Mountable Resistors are suitable for automatic placement systems and can be mounted on ceramic substrates and printed-circuit boards (PCBs). The end terminations ensure reliable electrical connection through individual soldering. The robust construction allows immersion in a solder bath of 260C for 10 seconds. They are tested for solderability at 235C for 2 seconds, with a no-leaching condition at 260C for 30 seconds. Typical soldering profiles are provided in Fig. 4.
Test and Requirements (JIS C 5201-1 : 1998)
| Requirement Test Procedure | Test Procedure | Criteria |
| Resistor Jumper DC resistance | Clause 4.5 | Within the specified tolerance < 50m |
| Temperature Coefficient of Resistance (T.C.R) | Clause 4.8 | 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> |
| Load life in Humidity | Clause 4.24 | R/R max.(3%+0.10) For 10R<1m ; r> |
| 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
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: 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)
WA06X,WA06T
| Symbol | A | B | W | F | E |
| Value | 3.600.20 | 2.000.20 | 8.000.30 | 3.500.05 | 1.750.10 |
WA04X
| Symbol | A | B | W | F | E |
| Value | 2.200.20 | 1.200.20 | 8.000.30 | 3.500.05 | 1.750.10 |
WA04Y
| Symbol | A | B | W | F | E |
| Value | 1.150.10 | 1.150.10 | 8.000.30 | 3.500.05 | 1.750.10 |
WA06W
| Symbol | P1 | P0 | D | T |
| Value | 4.000.10 | Max. 1.0 | 12.000.10 | 5.500.05 |
2410121521_Walsin-WA04X331JTL_C170189.pdf
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chip resistor arrays Walsin WA04X331JTL suitable for consumer electronics telecommunication and EDP devices Images
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