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 MMBT4126LT1
Preferred Device
General Purpose Transistor
PNP Silicon
* Moisture Sensitivity Level: 1 * ESD Rating - Human Body Model: >4000 V
ESD Rating - Machine Model: >400 V
MAXIMUM RATINGS
Rating Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current-Continuous Symbol VCEO VCBO VEBO IC Value -25 -25 -4 -200 Unit Vdc Vdc Vdc mAdc 1 BASE 2 EMITTER
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COLLECTOR 3
THERMAL CHARACTERISTICS
Characteristic Total Device Dissipation FR-5 Board (Note 1.) TA = 25C Derate above 25C Thermal Resistance, Junction to Ambient (Note 1.) Total Device Dissipation Alumina Substrate, (Note 2.) TA = 25C Derate above 25C Thermal Resistance, Junction to Ambient (Note 2.) Junction and Storage Temperature Range Symbol PD Max 225 Unit mW
3
1.8 RqJA PD 556 300
mW/C C/W mW
1 2
SOT-23 CASE 318 STYLE 6
2.4 RqJA TJ, Tstg 417 -55 to +150
mW/C C/W C
MARKING DIAGRAM
C3 M
1. FR-5 = 1.0 0.75 0.062 in. 2. Alumina = 0.4 0.3 0.024 in. 99.5% alumina.
C3 = Device Code M = Date Code
ORDERING INFORMATION
Device MMBT4126LT1 Package SOT-23 Shipping 3000/Tape & Reel
Preferred devices are recommended choices for future use and best overall value.
(c) Semiconductor Components Industries, LLC, 2001
1
March, 2001 - Rev. 0
Publication Order Number: MMBT4126LT1/D
MMBT4126LT1
ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted)
Characteristic Symbol Min Max Unit
OFF CHARACTERISTICS
Collector-Emitter Breakdown Voltage (Note 3.) (IC = -1.0 mAdc, IB = 0) Collector-Base Breakdown Voltage (IC = -10 mAdc, IE = 0) Emitter-Base Breakdown Voltage (IE = -10 mAdc, IC = 0) Collector Cutoff Current (VCE = -30 Vdc, VEB = -3.0 Vdc) V(BR)CEO -25 V(BR)CBO -25 V(BR)EBO -4 ICEX - -50 - nAdc - Vdc - Vdc Vdc
ON CHARACTERISTICS (Note 3.)
DC Current Gain (IC = -2.0 mAdc, VCE = -1.0 Vdc) (IC = -50 mAdc, VCE = -1.0 Vdc) Collector-Emitter Saturation Voltage (IC = -50 mAdc, IB = -5.0 mAdc) Base-Emitter Saturation Voltage (IC = -50 mAdc, IB = -5.0 mAdc) HFE 120 60 VCE(sat) - VBE(sat) - -0.95 -0.4 Vdc 300 - Vdc -
SMALL-SIGNAL CHARACTERISTICS
Current-Gain - Bandwidth Product (IC = -10 mAdc, VCE = -20 Vdc, f = 100 MHz) Output Capacitance (VCB = -5.0 Vdc, IE = 0, f = 1.0 MHz) Input Capacitance (VEB = -0.5 Vdc, IC = 0, f = 1.0 MHz) Small-Signal Current Gain (IC = -2.0 mAdc, VCE = -10 Vdc, f = 1.0 kHz) (IC = 10 mAdc, VCE = 20 Vdc, f = 100 MHz) Noise Figure (IC = -100 mAdc, VCE = -5.0 Vdc, RS = 1.0 k, f = 1.0 kHz) 3. Pulse Test: Pulse Width v 300 ms, Duty Cycle v 2.0%. fT 250 Cobo - Cibo - hfe 120 2.5 NF - 4.0 480 - dB 10 - 4.5 pF - pF MHz
TYPICAL TRANSIENT CHARACTERISTICS
TJ = 25C TJ = 125C 10 7.0 CAPACITANCE (pF) Q, CHARGE (pC) 5.0 Cobo Cibo 5000 3000 2000 1000 700 500 300 200 100 70 50 QT VCC = 40 V IC/IB = 10
3.0 2.0
QA
1.0 0.1
0.2 0.3
0.5 0.7 1.0 2.0 3.0 5.0 7.0 10 REVERSE BIAS (VOLTS)
20 30 40
1.0
2.0 3.0
5.0 7.0 10 20 30 50 70 100 IC, COLLECTOR CURRENT (mA)
200
Figure 1. Capacitance
Figure 2. Charge Data
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MMBT4126LT1
TYPICAL AUDIO SMALL-SIGNAL CHARACTERISTICS NOISE FIGURE VARIATIONS
(VCE = -5.0 Vdc, TA = 25C, Bandwidth = 1.0 Hz)
5.0 4.0 3.0 2.0 1.0 0 0.1 SOURCE RESISTANCE = 2.0 k IC = 100 mA 0.2 0.4 1.0 2.0 4.0 10 f, FREQUENCY (kHz) 20 40 100 SOURCE RESISTANCE = 200 W IC = 1.0 mA NF, NOISE FIGURE (dB) SOURCE RESISTANCE = 200 W IC = 0.5 mA SOURCE RESISTANCE = 2.0 k IC = 50 mA 12 f = 1.0 kHz 10 8 6 4 2 0 0.1 0.2 0.4 1.0 2.0 4.0 10 20 Rg, SOURCE RESISTANCE (k OHMS) IC = 50 mA IC = 100 mA IC = 1.0 mA IC = 0.5 mA
NF, NOISE FIGURE (dB)
40
100
Figure 3.
Figure 4.
h PARAMETERS
(VCE = -10 Vdc, f = 1.0 kHz, TA = 25C)
300 hoe, OUTPUT ADMITTANCE (m mhos) 100 70 50 30 20
h fe , DC CURRENT GAIN
200
100 70 50 30
10 7
0.1
0.2
0.3 0.5 0.7 1.0 2.0 3.0 IC, COLLECTOR CURRENT (mA)
5.0 7.0 10
5
0.1
0.2
0.3 0.5 0.7 1.0 2.0 3.0 IC, COLLECTOR CURRENT (mA)
5.0 7.0 10
Figure 5. Current Gain
h re , VOLTAGE FEEDBACK RATIO (X 10 -4 ) 20 h ie , INPUT IMPEDANCE (k OHMS) 10 7.0 5.0 3.0 2.0 1.0 0.7 0.5 0.3 0.2 10 7.0 5.0 3.0 2.0
Figure 6. Output Admittance
1.0 0.7 0.5 0.1 0.2 0.3 0.5 0.7 1.0 2.0 3.0 IC, COLLECTOR CURRENT (mA) 5.0 7.0 10
0.1
0.2
0.3 0.5 0.7 1.0 2.0 3.0 IC, COLLECTOR CURRENT (mA)
5.0 7.0 10
Figure 7. Input Impedance http://onsemi.com
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Figure 8. Voltage Feedback Ratio
MMBT4126LT1
TYPICAL STATIC CHARACTERISTICS
2.0
h FE, DC CURRENT GAIN (NORMALIZED)
TJ = +125C +25C -55C
VCE = 1.0 V
1.0 0.7 0.5 0.3 0.2
0.1 0.1
0.2
0.3
0.5
0.7
1.0
2.0 3.0 5.0 7.0 10 IC, COLLECTOR CURRENT (mA)
20
30
50
70
100
200
Figure 9. DC Current Gain
VCE, COLLECTOR EMITTER VOLTAGE (VOLTS) 1.0 TJ = 25C 0.8 0.6 0.4 0.2 0 0.01 IC = 1.0 mA 10 mA 30 mA 100 mA
0.02
0.03
0.05
0.07
0.1
0.2 0.3 0.5 IB, BASE CURRENT (mA)
0.7
1.0
2.0
3.0
5.0
7.0
10
Figure 10. Collector Saturation Region
q V , TEMPERATURE COEFFICIENTS (mV/ C) 1.0 0.8 V, VOLTAGE (VOLTS) 0.6 0.4 0.2 0 VCE(sat) @ IC/IB = 10 1.0 0.5 0 -0.5 +25C TO +125C -1.0 -1.5 -2.0 0 20 qVB FOR VBE(sat) -55C TO +25C qVC FOR VCE(sat) +25C TO +125C -55C TO +25C
TJ = 25C
VBE(sat) @ IC/IB = 10 VBE @ VCE = 1.0 V
1.0
2.0
50 5.0 10 20 IC, COLLECTOR CURRENT (mA)
100
200
40
60 80 100 120 140 IC, COLLECTOR CURRENT (mA)
160
180 200
Figure 11. "ON" Voltages
Figure 12. Temperature Coefficients
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MMBT4126LT1 INFORMATION FOR USING THE SOT-23 SURFACE MOUNT PACKAGE
MINIMUM RECOMMENDED FOOTPRINT FOR SURFACE MOUNTED APPLICATIONS Surface mount board layout is a critical portion of the total design. The footprint for the semiconductor packages must be the correct size to insure proper solder connection
0.037 0.95
interface between the board and the package. With the correct pad geometry, the packages will self align when subjected to a solder reflow process.
0.037 0.95
0.079 2.0 0.035 0.9 0.031 0.8
inches mm
SOT-23 SOT-23 POWER DISSIPATION The power dissipation of the SOT-23 is a function of the drain pad size. This can vary from the minimum pad size for soldering to a pad size given for maximum power dissipation. Power dissipation for a surface mount device is determined by TJ(max), the maximum rated junction temperature of the die, RJA, the thermal resistance from the device junction to ambient, and the operating temperature, TA. Using the values provided on the data sheet for the SOT-23 package, PD can be calculated as follows:
PD = TJ(max) - TA RJA
into the equation for an ambient temperature TA of 25C, one can calculate the power dissipation of the device which in this case is 225 milliwatts.
PD = 150C - 25C 556C/W = 225 milliwatts
The values for the equation are found in the maximum ratings table on the data sheet. Substituting these values
The 556C/W for the SOT-23 package assumes the use of the recommended footprint on a glass epoxy printed circuit board to achieve a power dissipation of 225 milliwatts. There are other alternatives to achieving higher power dissipation from the SOT-23 package. Another alternative would be to use a ceramic substrate or an aluminum core board such as Thermal Clad(R). Using a board material such as Thermal Clad, an aluminum core board, the power dissipation can be doubled using the same footprint.
SOLDERING PRECAUTIONS The melting temperature of solder is higher than the rated temperature of the device. When the entire device is heated to a high temperature, failure to complete soldering within a short time could result in device failure. Therefore, the following items should always be observed in order to minimize the thermal stress to which the devices are subjected. * Always preheat the device. * The delta temperature between the preheat and soldering should be 100C or less.* * When preheating and soldering, the temperature of the leads and the case must not exceed the maximum temperature ratings as shown on the data sheet. When using infrared heating with the reflow soldering method, the difference shall be a maximum of 10C. * The soldering temperature and time shall not exceed 260C for more than 10 seconds. * When shifting from preheating to soldering, the maximum temperature gradient shall be 5C or less. * After soldering has been completed, the device should be allowed to cool naturally for at least three minutes. Gradual cooling should be used as the use of forced cooling will increase the temperature gradient and result in latent failure due to mechanical stress. * Mechanical stress or shock should not be applied during cooling. * Soldering a device without preheating can cause excessive thermal shock and stress which can result in damage to the device.
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MMBT4126LT1
PACKAGE DIMENSIONS
SOT-23 TO-236AB CASE 318-09 ISSUE AF
A L
3 1 2
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. MAXIUMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL. DIM A B C D G H J K L S V INCHES MIN MAX 0.1102 0.1197 0.0472 0.0551 0.0385 0.0498 0.0140 0.0200 0.0670 0.0826 0.0040 0.0098 0.0034 0.0070 0.0180 0.0236 0.0350 0.0401 0.0830 0.0984 0.0177 0.0236 MILLIMETERS MIN MAX 2.80 3.04 1.20 1.40 0.99 1.26 0.36 0.50 1.70 2.10 0.10 0.25 0.085 0.177 0.45 0.60 0.89 1.02 2.10 2.50 0.45 0.60
B
S
V
G
C D H K J
STYLE 6: PIN 1. BASE 2. EMITTER 3. COLLECTOR
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MMBT4126LT1
Notes
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MMBT4126LT1
Thermal Clad is a registered trademark of the Bergquist Company
ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
PUBLICATION ORDERING INFORMATION
NORTH AMERICA Literature Fulfillment: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: ONlit@hibbertco.com Fax Response Line: 303-675-2167 or 800-344-3810 Toll Free USA/Canada N. American Technical Support: 800-282-9855 Toll Free USA/Canada EUROPE: LDC for ON Semiconductor - European Support German Phone: (+1) 303-308-7140 (Mon-Fri 2:30pm to 7:00pm CET) Email: ONlit-german@hibbertco.com French Phone: (+1) 303-308-7141 (Mon-Fri 2:00pm to 7:00pm CET) Email: ONlit-french@hibbertco.com English Phone: (+1) 303-308-7142 (Mon-Fri 12:00pm to 5:00pm GMT) Email: ONlit@hibbertco.com EUROPEAN TOLL-FREE ACCESS*: 00-800-4422-3781 *Available from Germany, France, Italy, UK, Ireland CENTRAL/SOUTH AMERICA: Spanish Phone: 303-308-7143 (Mon-Fri 8:00am to 5:00pm MST) Email: ONlit-spanish@hibbertco.com Toll-Free from Mexico: Dial 01-800-288-2872 for Access - then Dial 866-297-9322 ASIA/PACIFIC: LDC for ON Semiconductor - Asia Support Phone: 303-675-2121 (Tue-Fri 9:00am to 1:00pm, Hong Kong Time) Toll Free from Hong Kong & Singapore: 001-800-4422-3781 Email: ONlit-asia@hibbertco.com JAPAN: ON Semiconductor, Japan Customer Focus Center 4-32-1 Nishi-Gotanda, Shinagawa-ku, Tokyo, Japan 141-0031 Phone: 81-3-5740-2700 Email: r14525@onsemi.com ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative.
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MMBT4126LT1/D


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