Lifecycle:
Active (Mature)
Brand:
Welwyn
Series:
ULW
| Series | ULW |
|---|---|
| Application | Fusible |
| Mounting | Through hole |
| Package | Axial |
| Technology | Wirewound |
| Approval | UL1412 |
| Example MPN | ULW5-33RJT075 |
| Termination Options |
|
| Power | 5W |
|---|---|
| Rated Ambient Temperature | 25°C |
| De-rate to 0W Ambient Temperature | 280°C |
| Max Ambient Temperature | 155°C |
| LEV | - |
| Resistance min | 1Ω |
| Resistance max | 100Ω |
| Critical Resistance (where applying LEV dissipates Pr) | N/A: -Ω |
| Tolerance | 5% |
| TCR | 200ppm/°C |
| Isolation Voltage of Insulation | 500V |
| 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) | e3 - Sn hot dipped |
| Termination Finish (if Pb-bearing) | 95/5 |
| How to Specify Pb-Free | Part number suffix is not PB |
| ECCN | EAR99 |
| Packing | Tape & reel |
|---|---|
| Quantity | 750 |
| 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 | Dec 2008 |
|---|---|
| Lifecycle | Active (Mature) |
| EOL Date / YTEOL Estimate | 5 years or more. (Reviewed May 23) |
| Latest PCN Date | No PCNs |
| Alternative Part Number | - |
| Datasheet | ULW | |
| Application Note | UL Recognised Fusible Resistors | |
| Application Note | Lighting Circuits Resistors | |
| Application Note | Circuit Protection 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 | |
| Application Note | TN008 Resistors Leadform Capability | |
| Brochure | UL1412 Fusible Resistor Portfolio | |
| Brochure | Resistors Shorform Catalogue | |
| 3D Model | ULW5 | |
| Compliance | Mexicali ISO 9001 | |
| Compliance | RoHS ULW | |
| Compliance | REACH Statement Bedlington | |
| Compliance | CMRT Conflict Mineral Bedlington | |
| Compliance | Proposition 65 Declaration Bedlington | |
| Compliance | TSCA Statement Bedlington | |
| Compliance | Tin Whisker Report |