diff --git a/BOOKSHELF b/BOOKSHELF
index be01c59..dec5110 100644
--- a/BOOKSHELF
+++ b/BOOKSHELF
@@ -87,3 +87,8 @@ D: http://www.diodes.com/datasheets/ds30082.pdf
 N: 748421245
 A: balun2
 D: http://katalog.we-online.de/kataloge/eisos/media/pdf/748421245.pdf
+
+# Johanson 2450FB15L0001 balun/filter
+N: 2450FB15L0001
+A: balun3
+D: http://www.johansontechnology.com/images/stories/ip/balun-filters/Balun_Filter_Combo_Matched_2450FB15L0001_v12.pdf
diff --git a/bom/atrf.equ b/bom/atrf.equ
index 5ccd23c..eea7796 100644
--- a/bom/atrf.equ
+++ b/bom/atrf.equ
@@ -3,3 +3,4 @@
 ATMEL AT86RF230		ATMEL AT86RF230-ZU
 
 WURTH 748421245		JOHANSON 2450FB15L0001
+JOHANSON 2450FB15L0001	JOHANSON 2450FB15L0001E