Product Overview
The ASC_WA04/06 series offers general-purpose chip resistor arrays designed for surface mounting. These compact and lightweight components reduce final equipment size and lower assembly costs while enhancing reliability. They are RoHS compliant and lead-free. Applications include consumer electronics, EDP, and telecommunications equipment. The resistors are constructed on 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 ease of soldering.
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 (Tamb=70C) | Max. Operation Voltage (DC/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, 10 ~ 1M | 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)
| 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. Each resistor is marked with a three digits code on the protective coating to designate the nominal resistance value. 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: RESISTANCE 4.7 -> 4R7, 10 -> 100, 100 -> 101, 6800 -> 682, 47000 -> 473. No marking for WA04Y chip resistors array and E96 series resistance.
Test and Requirements
| Test | Procedure | Requirement |
|---|---|---|
| DC resistance (Resistor & Jumper) | Clause 4.5. Measured at specified test voltages. | Within specified tolerance. For Jumper: < 50m. |
| Temperature Coefficient of Resistance (T.C.R) | Clause 4.8. Natural resistance change per degree centigrade. | Refer to QUICK REFERENCE DATA. |
| Short time overload (S.T.O.L) | Clause 4.13. 5-second application of 2.5x RCWV or max overload voltage. | R/R max. (2%+0.10). < 50m. |
| Resistance to soldering heat(R.S.H) | Clause 4.18. Un-mounted chips immersed in SAC solder bath at 2605 for 101 seconds. | R/R max. (1%+0.05). No visible damage. < 50m. |
| Solderability | Clause 4.17. Un-mounted chips immersed in SAC solder bath at 2355 for 20.5 seconds. | Good tinning (>95% covered). No visible damage. |
| Temperature cycling | Clause 4.19. 5 continuous cycles: -55C (30 min), 20C (2-3 min), +155C (30 min), 20C (2-3 min). | R/R max. (1%+0.05). No visible damage. < 50m. |
| Load life (endurance) | Clause 4.25. 1000 hours at 702C, loaded with RCWV or Vmax. | 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. 1000 hours at 40C2C and 90~95% RH, loaded with RCWV or Vmax. | R/R max. (3%+0.10) for 10R<1M; R/R max. (5%+0.10) for R<10, R1M. < 50m. |
| Adhesion | Clause 4.32. Pressurizing force: 5N, Test time: 101sec. | No remarkable damage or removal of the terminations. |
| Insulation Resistance | Clause 4.6. Apply max overload voltage (DC) for 1 minute. | R10G. |
| Dielectric Withstand Voltage | Clause 4.7. 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: 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)
| 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 | - | - | 12.000.10 | 5.500.05 | 1.750.10 |
| Symbol | P1 | P0 | D | T |
|---|---|---|---|---|
| WA06X,WA06T | 4.000.10 | Max. 1.0 | - | - |
| WA04X | - | Max. 0.6 | - | - |
| WA04Y | - | - | - | - |
| WA06W | - | - | - | - |
2410121521_Walsin-WA06X393JTL_C396855.pdf
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