PAGE . 1
STAD-MAR.24.2008
MMBTA44
NPN HIGH VOLTAGE TRANSISTOR
VOLTAGE 400 Volts 225 mWatts
MECHANICAL DATA
• Case: SOT-23, Plastic
• Terminals: Solderable per MIL-STD-750, Method 2026
• Approx. Weight: 0.008 grams
• Marking: A44
POWER
ABSOLUTE MAXIMUM RATINGS
THERMAL CHARACTERISTICS
Note 1: Transistor mounted on FR-5 board 1.0 x 0.75 x 0.062 in.
1
Base
3
Collector
2
Emitter
1
BASE
3
COLLECTOR
2
EMITTER
Top View
RETEMARAPlobmySeulaVstinU
egatloVrettimE-rotcelloC V
OEC
004V
egatloVesaB-rotcelloC V
OBC
004V
egatloVesaB-rettimE V
OBE
0.6V
suounitnoCtnerruCrotcelloC I
C
003Am
RETEMARAPlobmySeulaVstinU
)1etoN(noitapissiDrewoPxaM P
TOT
522Wm
tneibmAotnoitcnuJ,ecnatsiseRlamrehT R
θAJ
655
O
W/C
erutarepmeTnoitcnuJ T
J
051ot55-
O
C
erutarepmeTegarotS T
GTS
051ot55-
O
C
FEATURES
• Silicon, planar design
• Collector-emitter voltage VCE = 400V
• Collector current IC = 300mA
• /HDGIUHHLQFRPSO\ZLWK(85R+6(&GLUHFWLYHV
*UHHQPROGLQJFRPSRXQGDVSHU,(&6WG+DORJHQ)UHH
SOT-23
Unit inch(mm)：
0.120(3.04)
0.110(2.80)
0.056(1.40)
0.047(1.20)
0.079(2.00)
0.070(1.80)
0.004(0.10)MAX.
0.020(0.50)
0.013(0.35)
0.044(1.10)
0.035(0.90)
0.006(0.15)MIN.
0.103(2.60)
0.086(2.20)
0.008(0.20)
0.003(0.08)
PAGE . 2
STAD-MAR.24.2008
MMBTA44
ELECTRICAL CHARACTERISTICS
RETEMARAPlobmySnoitidnoCtseT.NIM.PYT.XAMstinU
egatloVnwodkaerBrettimE-rotcelloCV
)RB(
OECI
C
I,Am0.1-=
B
0=005--V
egatloVnwodkaerBesaB-rotcelloCV
)RB(
OBCI
C
001-= µI,A
E
0=004--V
egatloVnwodkaerBesaB-rettimEV
)RB(
OBEI
E
01-= µI,A
C
0=0.6--V
tnerruCffo-tuCrotcelloCI
OBC
V
BC
I,V004=
E
A0=--1.0 µA
tnerruCffo-tuCrettimEI
OBE
V
BE
I,V0.6=
C
0=--1.0 µA
niaGtnerruCCDh
EF
V
EC
I,V01=
C
Am1=
V
EC
I,V01=
C
Am01=
V
EC
I,V01=
C
Am05=
V
EC
I,V01=
C
Am001=
04055404
-
-
-
-
-002 -
-
-
egatloVnoitarutaSrettimE-rotcelloCV
)TAS(EC
I
C
I,Am1=
B
Am1.0=
I
C
I,Am01=
B
Am1=
I
C
I,Am05=
B
Am5= -- 4.0 5.0 57.0 V
egatloVnoitaurtaSrettimE-esaBV
)TAS(EB
I
C
I,Am01=
B
Am1=--57.0V
tcudorPhtdiwdnaB-niaGrotcelloCF
T
I
C
V,Am01=
EC
V02=
,
HM001=f
Z
05--HM
Z
PAGE . 3
STAD-MAR.24.2008
MMBTA44
PAGE . 4
STAD-MAR.24.2008
MMBTA44
PAGE . 5
STAD-MAR.24.2008
MOUNTING PAD LAYOUT
• Packing information
T/R - 12K per 13" plastic Reel
T/R - 3K per 7” plastic Reel
ORDER INFORMATION
LEGAL STATEMENT
Copyright PanJit International, Inc 2012
The information presented in this document is believed to be accurate and reliable. The specifications and information herein
are subject to change without notice. Pan Jit makes no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose. Pan Jit products are not authorized for use in life support devices or systems. Pan Jit
does not convey any license under its patent rights or rights of others.
MMBTA44
SOT-23
0.031 MIN.
(0.80) MIN.
0.037
(0.95)
0.043
(1.10)
0.078
(2.00)
0.035 MIN.
(0.90) MIN.
0.043
(1.10)
0.106
(2.70)
Unit inch(mm)：
PAGE . 6
MMBTA44
STAD-MAR.24.2008
Part No_packing code_Version
For example :
RB500V-40_R2_
Serial number
Part No. Version code means HF
Packing size code means 13"
Packing type means T/R
Packing
type 1st Code Packing size
code 2nd Code HF or RoHS 1st Code 2nd~5th Code
T/B AN/A 0HF 0 serial number
T/R R7" 1RoHS 1 serial number
B/P B13" 2
T/P T26mm X
TRR S52mm Y
TRL LPBCU U
FORMING FPBCD D
Packing Code XX Version Code XXXXX
00001
MMBTA44_R1_00001
MMBTA44_R2_00001