Lifecycle:
Obsolete
Brand:
Welwyn
Series:
WFF
| Series | WFF | 
|---|---|
| Application | Fusible | 
| Mounting | Through hole | 
| Package | Axial | 
| Technology | Metal film | 
| Approval | None | 
| Example MPN | WFF1/4-1R5JI | 
| Termination Options | - | 
| Power | - | 
|---|---|
| Rated Ambient Temperature | - | 
| De-rate to 0W Ambient Temperature | - | 
| Max Ambient Temperature | - | 
| LEV | - | 
| Resistance min | - | 
| Resistance max | - | 
| Critical Resistance (where applying LEV dissipates Pr) | - | 
| Best Tolerance | - | 
| Best TCR | - | 
| Isolation Voltage of Insulation | - | 
| RoHS Compliant (if Pb-free) | - | 
|---|---|
| RoHS Exemption | - | 
| China RoHS (if Pb-free) | - | 
| REACH Status (if Pb-free) | - | 
| CMRT Conflict Mineral Status | - | 
| EMRT Extended Mineral Status | - | 
| Termination Finish (if Pb-free) | None | 
| Termination Finish (if Pb-bearing) | - | 
| How to Specify Pb-Free | - | 
| ECCN | - | 
| Packing | None | 
|---|---|
| Quantity | - | 
| Nett Weight Each | - | 
| Reflow Process | - | 
| MSL | - | 
| Wave Process | - | 
| Shelf-life | - | 
| Launch Date | Pre-2000 | 
|---|---|
| Lifecycle | Obsolete | 
| EOL Date / YTEOL Estimate | EOL in 2008 | 
| Latest PCN Date | 01 Feb 08 | 
| Alternative Part Number | - | 
| Datasheet | WFF | |
| Application Note | TN001 Advice on Storage Conditions for Fixed Resistors | |
| 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 | |
| Product Change Notification | PCNs for WFF |