Electronic Components Datasheet Search |
|
2N4870 Datasheet(PDF) 1 Page - Digitron Semiconductors |
|
2N4870 Datasheet(HTML) 1 Page - Digitron Semiconductors |
1 / 4 page DIGITRON SEMICONDUCTORS 144 Market Street Kenilworth NJ 07033 USA phone +1.908.245-7200 2N4870-2N4871 PN UNIJUNCTION TRANSISTORS MAXIMUM RATINGS Rating Symbol Value Unit RMS power dissipation(1) PD 300 mW RMS emitter current Ie 50 mA Peak pulse emitter current(2) ie 1.5 Amp Emitter reverse voltage VB2E 30 Volts Interbase voltage † VB2B1 35 Volts Operating junction temperature range TJ -55 to 125 °C Storage temperature range Tstg -55 to 150 °C Note 1: Derate 3.04mW/°C increase in ambient temperature. Note 2: Duty cycle ≤ 1%. PRR = 10PPS. † Base upon power dissipation at TA = 25°C. ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted) Characteristic Symbol Min Typ Max Unit Intrinsic standoff ratio (VB2B1 = 10V)(1) 2N4870 2N4871 η 0.56 0.70 - - 0.75 0.85 - Interbase resistance (VB2B1 = 3.0V, IE = 0) RBB 4.0 6.0 9.1 kohms Interbase resistance temperature coefficient (VB2B1 = 3.0v, IE = 0, TA = -65° to 125°C αRBB 0.1 - 0.9 %/°C Emitter saturation voltage (VB2B1 = 10V, IE = 50mA)(2) VEB1(sat) - 2.5 - Volts Modulated interbase current (VB2B1 = 10V, IE = 50mA) IB2(mod) - 15 - mA Emitter reverse current (VB2E = 30V, IB1 = 0) IEB20 - 0.005 1.0 µA Peak point emitter current (VB2B1 = 25V) IP - 1.0 5.0 µA Valley point current (VB2B1 = 20V, RB2 = 100ohms)(2) 2N4870 2N4871 IV 2.0 4.0 5.0 7.0 - - mA Base-one peak pulse voltage 2N4870 2N4871 VOB1 3.0 5.0 6.0 8.0 - - Volts Note 1: Intrinsic standoff ration: VP = η VB2B1+ VF, where VF is about 0.49V at 25°C @ IF = 10µA and decreases with temperature at about 2.5mV/°C. Components R1, C1, and the UJT form a relaxation oscillator; the remaining circuitry serves as a peak –voltage detector. The forward drop of diode D1 compensates for VR. To use, the “cal” button is pushed and R3 is adjusted to make the current meter, M1, read full scale. When the “cal” button is released, the value of η is read directly from the meter, if full scale on the meter reads 1.0. Note 2: Use pulse techniques: PW ≈ 300µs duty cycle ≤ 2% to avoid internal heating due to interbase modulation which may result in erroneous readings. Available Non-RoHS (standard) or RoHS compliant (add PBF suffix). Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number. sales@digitroncorp.com fax +1.908.245-0555 www.digitroncorp.com Rev. 20120705 |
Similar Part No. - 2N4870 |
|
Similar Description - 2N4870 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |