TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
Website: http: //www.microsemi.com
PNP SMALL SIGNAL SILICON TRANSISTOR
Qualified per MIL-PRF-19500/511
T4-LDS-0150 Rev. 2 (101161) Page 1 of 5
DEVICES LEVELS
2N4261 2N4261UB JAN
2N4261UBC * JANTX
JANTXV
* Available for JANS only JANS
ABSOLUTE MAXIMUM RATI NG S (TC = +25°C unless otherwise noted)
Parameters / Test Conditions Symbol Value Unit
Collector-Emitter Voltage VCEO 15 Vdc
Collector-Base Voltage VCBO 15 Vdc
Emitter-Base Voltage VEBO 4.5 Vdc
Collector Current IC 30 mAdc
Total Power Dissipation @ TA = +25°C PT
0.2 W
Operating & Storage Junction Temperature Range Top, Tstg -65 to +200 °C
Note: Consult 19500/511 for Thermal Performance Curves.
ELECTRICAL CHARACTERISTICS (TA = +25°C, unless otherwise noted)
Parameters / Test Conditions Symbol Min. Max. Unit
OFF CHARACTERTICS
Collector-Emitter Breakdown Voltage
IC = 10mAdc V(BR)CEO 15 Vdc
Collector-Base Cutoff Current
VCB = 15Vdc ICBO 10 μAdc
Emitter-Base Cutoff Current
VEB = 4.5Vdc IEBO 10 μAdc
Collector-Emitter Cutoff Current
VCE = 10Vdc, VBE = 0.4Vdc ICEX1 50 ηAdc
Collector-Emitter Cutoff Current
VCE = 10Vdc, VBE = 2.0Vdc ICEX2 5 ηAdc
TO-72
2N4261
3 PIN
2N4261UB
2N4261UBC
(UBC = Ceramic Lid Version)
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
Website: http: //www.microsemi.com
T4-LDS-0150 Rev. 2 (101161) Page 2 of 5
ELECTRICAL CHARACTERISTICS (TA = +25°C, unless otherwise noted)
Parameters / Test Conditions Symbol Min. Max. Unit
ON CHARACTERISTICS (4)
Forward-Current Transfer Ratio
hFE
IC = 1.0mAdc, VCE = 1Vdc 25
IC = 10mAdc, VCE = 1Vdc 30 150
IC = 30mAdc, VCE = 1Vdc 20
Collector-Emitter Saturation Voltage
VCE(sat)
Vdc
IC = 1mAdc, IB = 0.1mAdc
IC = 10mAdc, IB = 1.0mAdc
0.15
0.35
Base-Emitter Saturation Voltage (Non-Saturated)
VBE
Vdc
VCE = 1Vdc, IC = 1mAdc
VCE = 1Vdc, IC = 10mAdc
0.6
0.80
1.0
DYNAMIC CHARACTERISTICS
Parameters / Test Conditions Symbol Min. Max. Unit
Magnitude of Small–Signal Forward Current Transfer Ratio
|hfe|
IC = 10mAdc, VCE = 10Vdc, f = 100MHz 20
Output Capacitance
Cobo 2.5 pF
VCB = 4Vdc, IE = 0, 100kHz ≤ f ≤ 1.0MHz
Input Capacitance
Cibo 2.5 pF
VEB = 0.5Vdc, IC = 0, 100kHz ≤ f ≤ 1.0MHz
SWITCHING CHARACTERISTICS
Parameters / Test Conditions Symbol Min. Max. Unit
Turn-On Time
VCC = 17Vdc; IC = 10mAdc t
on 2.5
ηs
Turn-Off Time
VCC = 17Vdc; IC = 10mAdc
toff 3.5
ηs
(4) Pulse Test: Pulse Width = 300μs, Duty Cycle ≤ 2.0%.
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
Website: http: //www.microsemi.com
T4-LDS-0150 Rev. 2 (101161) Page 3 of 5
PACKAGE DIMENSIONS
NOTES:
1 Dimension are in inches.
2 Millimeters are given for general information only.
3 Beyond r (radius) maximum, TH shall be held for a minimum length of .011 (0.28 mm).
4 Dimension TL measured from maximum HD.
5 Body contour optional within zone defined by HD, CD, and Q.
6 Leads at gauge plane .054 +.001 -.000 inch (1.37 +0.03 -0.00 mm) below seating plane shall be within .007 inch (0.18mm)
radius of true position (TP) at maximum material condition (MMC) relative to tab at MMC.
7 Dimension LU applies between L1 and L2. Dimension LD applies between L2 and LL minimum. Diameter is uncontrolled in
L1 and beyond LL minimum.
8 All four leads.
9 Dimension r (radius) applies to both inside corners of tab.
10 In accordance with ASME Y14.5M, diameters are equivalent to φx symbology.
11 Lead 1 = emitter, lead 2 = base, lead 3 = collector, lead 4 = case (electrically connected).
FIGURE 1. Physical dimensions for 2N4261 (TO-72).
Dimensions
Symbol Inches Millimeters Notes
Min Max Min Max
CD .178 .195 4.52 4.95 5
CH .170 .210 4.32 5.33
HD .209 .230 5.31 5.84 5
LC .100 TP 2.54 TP 7, 8
LD .016 .021 .406 .533 7, 8
LL .500 .750 12.70 19.05 7, 8
LU .016 .019 .41 .48
L1 .050 1.27
L2 .250 6.35
P .100 2.54
Q .040 1.02 5
TL .028 .048 .71 1.22
TW .036 .046 .91 1.17
r .007 .18
α 45° TP
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
Website: http: //www.microsemi.com
T4-LDS-0150 Rev. 2 (101161) Page 4 of 5
Dimensions Dimensions
Ltr. Inches Millimeters Note Ltr. Inches Millimeters Note
Min Max Min Max Min Max Min Max
BH .046 .056 1.17 1.42 LS1 .035 .040 0.89 1.02
BL .115 .128 2.92 3.25 LS2 .071 .079 1.80 2.01
BW .085 .108 2.16 2.74 LW .016 .024 0.41 0.61
CL .128 3.25 r .008 0.20
CW .108 2.74 r1 .012 0.31
LL1 .022 .038 0.56 0.96 r2 .022 0.56
LL2 .017 .035 0.43 0.89
NOTES:
1 Dimensions are in inches.
2 Millimeters are given for general information only.
3 Pad 1 = Base, Pad 2 = Emitter, Pad 3 = Collector, Pad 4 = Shielding connected to the lid.
4 In accordance with ASME Y14.5M, diameters are equivalent to φx symbology.
FIGURE 2. Physical dimensions for 2N4261UB, surface mount.
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
Website: http: //www.microsemi.com
T4-LDS-0150 Rev. 2 (101161) Page 5 of 5
Dimensions Dimensions
Ltr. Inches Millimeters Note Ltr. Inches Millimeters Note
Min Max Min Max Min Max Min Max
BH .046 .071 1.17 1.80 LS1 .036 .040 0.91 1.02
BL .115 .128 2.29 3.25 LS2 .071 .079 1.81 2.01
BW .085 .108 2.16 2.74 LW .016 .024 0.41 0.61
CL .128 3.25 r .008 .203
CW .108 2.74 r1 .012 .305
LL1 .022 .038 0.56 0.96 r2 .022 .559
LL2 .017 .035 0.43 0.89
NOTES:
1 Dimensions are in inches.
2 Millimeters are given for general information only.
3 Hatched areas on package denote metallized areas
4 Pad 1 = Base, Pad 2 = Emitter, Pad 3 = Collector, Pad 4 = connected to the lid braze ring.
5 In accordance with ASME Y14.5M, diameters are equivalent to φx symbology.
* FIGURE 3. Physical dimensions, surface mount (UBC version, ceramic lid).
