Littelfuse Inc.
800 E. Northwest Highway
Des Plaines, IL 60016-3096
June 1st, 2004
To: Littelfuse Customers and Distributors
Subject: TVS Diode Selected Parts Obsolescence
At this time Littelfuse is announcing the obsolescence of the 1N56 and 1N60 TVS Diode
Metal Axial product lines and the obsolescence of the BZY91 and BZY93 Zener Diode
Stud product lines. All affected product families are listed below and specific part
numbers are listed on page 2.
Littelfuse will be offering a last time buy on all products. Littelfuse will accept last time
buy orders for the discontinued products until September 1, 2004. All orders are to be
considered non-cancelable and non-returnable.
Series Functional Cross
1N5629-65A None Available
1N6036-72A None Available
BZY91C8V2-C75 None Available
BZY93C8V2-C75 None Available
If you have any questions please contact your Littelfuse sales representative or distributor
in your local area.
Best Regards,
Gerald A Niemi
Littelfuse Product Manager TVS Diodes
Discontinued Part Number
1N56 Series 1N60 Series BZY91 Series BZY93 Series
1N5629 1N6036 BZY91C10N BZY93C10N
1N5629A 1N6036A BZY91C10R BZY93C10R
1N5630 1N6037 BZY91C11N BZY93C11N
1N5630A 1N6037A BZY91C11R BZY93C11R
1N5631 1N6038 BZY91C12N BZY93C120R
1N5631A 1N6038A BZY91C12R BZY93C12N
1N5632 1N6039 BZY91C13N BZY93C12R
1N5632A 1N6039A BZY91C13R BZY93C13N
1N5633 1N6040 BZY91C15N BZY93C13R
1N5633A 1N6040A BZY91C15R BZY93C15N
1N5634 1N6041 BZY91C16R BZY93C15R
1N5634A 1N6041A BZY91C18N BZY93C16N
1N5635 1N6042 BZY91C18R BZY93C16R
1N5635A 1N6042A BZY91C20N BZY93C18N
1N5636 1N6043 BZY91C20R BZY93C18R
1N5636A 1N6043A BZY91C20R-007 BZY93C20N
1N5637 1N6044 BZY91C22N BZY93C20R
1N5637A 1N6044A BZY91C22R BZY93C22N
1N5638 1N6045 BZY91C24N BZY93C22R
1N5638A 1N6045A BZY91C24R BZY93C24N
1N5639 1N6046 BZY91C27N BZY93C24R
1N5639A 1N6046A BZY91C27R BZY93C27N
1N5640 1N6047 BZY91C30N BZY93C27R
1N5640A 1N6047A BZY91C30R BZY93C30N
1N5641 1N6048 BZY91C33N BZY93C30R
1N5641A 1N6048A BZY91C33R BZY93C33N
1N5642 1N6049 BZY91C36N BZY93C33R
1N5642A 1N6049A BZY91C36R BZY93C34.5C-004
1N5642A-B 1N6050 BZY91C39N BZY93C36N
1N5643 1N6050A BZY91C39R BZY93C36R
1N5643A 1N6051 BZY91C43N BZY93C39N
1N5644 1N6051A BZY91C43R BZY93C39R
1N5644A 1N6052 BZY91C47N BZY93C43N
1N5645 1N6052A BZY91C47R BZY93C43R
1N5645A 1N6053 BZY91C51N BZY93C47N
1N5646 1N6053A BZY91C51R BZY93C47R
1N5646A 1N6054 BZY91C56N BZY93C51N
1N5647 1N6054A BZY91C56R BZY93C51R
1N5647A 1N6055 BZY91C62N BZY93C56N
1N5648 1N6055A BZY91C62R BZY93C56R
1N5648A 1N6056 BZY91C68N BZY93C62N
1N5649 1N6056A BZY91C68R BZY93C62R
1N5649A 1N6057 BZY91C75N BZY93C68N
1N5650 1N6057A BZY91C75R BZY93C68R
1N5650A 1N6058