4.3 OTHER CRIMES, WRONGS OR ACTS OF DEFENDANT
You have heard evidence that the defendant committed other [crimes] [wrongs] [acts] not charged here. You may consider this evidence only for its bearing, if any, on the question of the defendant’s [intent] [motive] [opportunity] [preparation] [plan] [knowledge] [identity] [absence of mistake] [absence of accident] and for no other purpose. [You may not consider this evidence as evidence of guilt of the crime for which the defendant is now on trial.]
See Fed. R. Evid. 404(b). Evidence of other crimes, wrongs or acts may be admissible for one purpose but not another; therefore, this instruction is required by Fed. R. Evid. 105 ("When evidence which is admissible as to one party or for one purpose but not admissible as to another party or for another purpose is admitted, the court, upon request, shall restrict the evidence to its proper scope and instruct the jury accordingly.") See also Instruction 4.6 and the Comment thereto (Impeachment, Prior Conviction of Defendant), and the Comment to Instruction 2.10 (Other Crimes, Wrongs or Acts of Defendant).