Lifecycle:
Active (Mature)
Brand:
Welwyn
Series:
W20
| Series | W20 |
|---|---|
| Application | High power |
| Mounting | Through hole |
| Package | Axial |
| Technology | Wirewound |
| Approval | IECQ-CECC40201 |
| Example MPN | W21-3K3JI |
| Termination Options | Pb-free |
| Power | 3W |
|---|---|
| Rated Ambient Temperature | 70°C |
| De-rate to 0W Ambient Temperature | 315°C |
| Max Ambient Temperature | 200°C |
| LEV | 100V |
| Resistance min | 0.1Ω |
| Resistance max | 10kΩ |
| Critical Resistance (where applying LEV dissipates Pr) | 3.33kΩ |
| Tolerance | 1% |
| TCR | 75ppm/°C |
| Isolation Voltage of Insulation | See datasheet: ?V |
| RoHS Compliant (if Pb-free) | Yes (see below) |
|---|---|
| RoHS Exemption | None |
| China RoHS (if Pb-free) | Compliant |
| REACH Status (if Pb-free) | Reviewed to 235 SVHCs (see below) |
| CMRT Conflict Mineral Status | Rev 6.22 Next update May 2023 (see below) |
| EMRT Extended Mineral Status | No EMRT available |
| Termination Finish (if Pb-free) | e1 - SnAgCu |
| Termination Finish (if Pb-bearing) | Not available |
| How to Specify Pb-Free | All part numbers are Pb-free |
| ECCN | EAR99 |
| Packing | Tape & ammo pack |
|---|---|
| Quantity | 1000 |
| Nett Weight Each | - |
| Reflow Process | Not applicable |
| MSL | Not applicable |
| Wave Process | Compatible, 260+-5 deg. C, 1 or 2 x 5+-1 seconds contact time |
| Shelf-life | None defined, but solderability test prior to use is recommended after two years from date of manufacture |
| Launch Date | 1968 |
|---|---|
| Lifecycle | Active (Mature) |
| EOL Date / YTEOL Estimate | 5 years or more. (Reviewed May 23) |
| Latest PCN Date | 12 Jul 21 |
| Alternative Part Number | - |
| Datasheet | W20 | |
| Application Note | Wirewound Pulse Overload Resistors | |
| Application Note | TN001 Advice on Storage Conditions for Fixed Resistors | |
| Application Note | TN002 Instant Access to RoHS REACH Conflict Mineral and other Compliance Data Online | |
| Application Note | TN003 Methods for Coding Resistor Values in Part Numbers | |
| Application Note | TN005 EIA Standard Values for Resistors | |
| Application Note | TN007 Instant Access to Life Cycle and Obsolete Product Data Online | |
| Brochure | Resistors Shorform Catalogue | |
| Compliance | Bedlington ISO 9001 | |
| Compliance | Bedlington Quality Policy | |
| Compliance | Bedlington ISO 14001 2015 | |
| Compliance | Bedlington Env Policy | |
| Compliance | Bedlington ISO 45001 2018 | |
| Compliance | Bedlington Health and Safety Policy | |
| Compliance | RoHS W20 | |
| Compliance | REACH Statement Bedlington | |
| Compliance | CMRT Conflict Mineral Bedlington | |
| Compliance | Proposition 65 Declaration Bedlington | |
| Compliance | TSCA Statement Bedlington | |
| Compliance | Tin Whisker Report | |
| Product Change Notification | PCNs for W20 |