Lifecycle:
Obsolete
Brand:
Welwyn
Series:
WSM
| Series | WSM |
|---|---|
| Application | General purpose |
| Mounting | SMD - solder |
| Package | SMD formed metal terminal |
| Technology | Wirewound |
| Approval | None |
| Example MPN | WSM1-6K8FI or WSM16801FLTR |
| Termination Options | Pb-free |
| Power | 1W |
|---|---|
| Rated Ambient Temperature | 70°C |
| De-rate to 0W Ambient Temperature | 275°C |
| Max Ambient Temperature | 275°C |
| LEV | 100V |
| Resistance min | 0.01Ω |
| Resistance max | 400Ω |
| Critical Resistance (where applying LEV dissipates Pr) | Out of rangeΩ |
| Tolerance | 1% |
| TCR | 20ppm/°C |
| Isolation Voltage of Insulation | 1kV |
| 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 matt plated |
| Termination Finish (if Pb-bearing) | Not available |
| How to Specify Pb-Free | All part numbers are Pb-free |
| ECCN | EAR99 |
| Packing | Plastic tape & reel |
|---|---|
| Quantity | 1500 |
| Nett Weight Each | - |
| Reflow Process | J-STD-020E |
| MSL | 1 |
| 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 | Pre-2000 |
|---|---|
| Lifecycle | Obsolete |
| EOL Date / YTEOL Estimate | EOL in Mar 2022 |
| Latest PCN Date | 23 Aug 21 |
| Alternative Part Number | - |
| Datasheet | WSM1 | |
| 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 | |
| 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 WSM | |
| 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 WSM |