
Overview
The BAS19L is a switching Diode made by onsemi in a SOT-23 package with 3 pins. -55℃~+150℃@(Tj) 100nA@100V 120V 1V@100mA 200mA 225mW 2A 50ns Independent SOT-23 Switching Diodes ROHS.
PCBKit's library has its KiCad symbol (Diode:BAS19, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 8,470 are in stock at JLCPCB (part C232582).
Symbol
Footprint
From the datasheet
7- Reverse voltage, most
- 120 V · VR, continuous reverse voltage max · p. 1
- Forward current, most
- 200 mA · IF, continuous forward current max · p. 1
- Forward voltage
- 1 V · VF max at IF = 100 mAdc · p. 2
- Forward voltage
- 1.25 V · VF max at IF = 200 mAdc · p. 2
- Junction, hottest
- 150 °C · TJ, junction temperature max · p. 2
- Junction to air (SOT−23)
- 556 K/W · Junction-to-ambient max, FR−5 board · p. 2
- Junction to air (SOT−23)
- 417 K/W · Junction-to-ambient max, alumina substrate · p. 2
What it is and has
1- Material compliance
- Pb−Free, Halogen Free/BFR Free · p. 1
Specifications
23| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Continuous Reverse Voltage VR | BAS19 | max 120 Vdc | 1 |
| Repetitive Peak Reverse Voltage VRRM | BAS19 | max 120 Vdc | 1 |
| Continuous Forward Current IF | max 200 mAdc | 1 | |
| Peak Forward Surge Current IFSM | 1/2 Cycle, Sine Wave, 60 Hz | max 2 A | 1 |
| Repetitive Peak Forward Current IFRM | Pulse Train: TON = 1 s, TOFF = 0.5 s | max 0.6 A | 1 |
| Junction and Storage Temperature Range TJ, Tstg | min -55 · max 150 °C | 1 | |
| Power Dissipation (Note 1) PD | Mounted on FR−5 Board = 1.0 x 0.75 x 0.062 in. | max 385 mW | 1 |
| Electrostatic Discharge ESD | HM; stated as < 500 V | max 500 V | 1 |
| Electrostatic Discharge ESD | MM; stated as < 400 V | max 400 V | 1 |
| Total Device Dissipation FR−5 Board PD | SOT−23; TA = 25°C; Note 2: FR−5 = 1.0 x 0.75 x 0.062 in. | max 225 mW | 2 |
| Derate above 25°C | SOT−23; FR−5 Board | max 1.8 mW/°C | 2 |
| Thermal Resistance Junction−to−Ambient (SOT−23) RJA | SOT−23; FR−5 Board | max 556 °C/W | 2 |
| Total Device Dissipation Alumina Substrate PD | SOT−23; TA = 25°C; Note 3: Alumina = 0.4 x 0.3 x 0.024 in., 99.5% alumina | max 300 mW | 2 |
| Derate above 25°C | SOT−23; Alumina Substrate | max 2.4 mW/°C | 2 |
| Thermal Resistance Junction−to−Ambient RJA | SOT−23; Alumina Substrate | max 417 °C/W | 2 |
| Junction and Storage Temperature Range TJ, Tstg | SOT−23 | min -55 · max 150 °C | 2 |
| Reverse Voltage Leakage Current IR | BAS19; VR = 100 Vdc; TA = 25°C | max 0.1 Adc | 2 |
| Reverse Voltage Leakage Current IR | BAS19; VR = 100 Vdc, TJ = 150°C | max 100 Adc | 2 |
| Reverse Breakdown Voltage V(BR) | BAS19; IBR = 100 Adc; TA = 25°C | min 120 Vdc | 2 |
| Forward Voltage VF | IF = 100 mAdc; TA = 25°C | max 1 Vdc | 2 |
| Forward Voltage VF | IF = 200 mAdc; TA = 25°C | max 1.25 Vdc | 2 |
| Diode Capacitance CD | VR = 0, f = 1.0 MHz; TA = 25°C | max 5 pF | 2 |
| Reverse Recovery Time trr | IF = IR = 30 mAdc, IR(REC) = 3.0 mAdc, RL = 100; TA = 25°C | max 50 ns | 2 |
Pins, by the datasheet
3- 1 ANODE
- Anode. · p. 5
- 2 NO CONNECTION
- No connection. · p. 5
- 3 CATHODE
- Cathode. · p. 5
Ordering codes, by the datasheet
3- BAS19LT1G
- SOT−23 · Pb−Free; 3000 / Tape & Reel · p. 4
- BAS19LT3G
- SOT−23 · Pb−Free; 10000 / Tape & Reel · p. 4
- NSVBAS19LT1G
- SOT−23 · Pb−Free; 3000 / Tape & Reel; automotive and other applications requiring unique site and control change requirements; AEC−Q101 Qualified and PPAP Capable · p. 4
Parameters
12- Current - Rectified
- 200mA
- Diode Configuration
- Standalone
- Junction Temperature(Max)
- 150℃
- Non-Repetitive Peak Forward Surge Current
- 2A
- Operating Junction Temperature Range
- -55℃~+150℃
- Pd - Power Dissipation
- 225mW
- Reverse Leakage Current (Ir)
- 100nA@100V
- Reverse Recovery Time (trr)
- 50ns
- Thermal Resistance(Junction to Ambient)
- 556℃/W
- Voltage - DC Reverse(Vr)
- 120V
- Voltage - Forward(Vf)
- 1V
- Voltage - Forward(Vf@If)
- 1V@100mA
Order codes
2- BAS19LT1GLCSC C232582
- BAS19LT3GLCSC C896653
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | A | Passive |
| 2 | NC | Not connected |
| 3 | K | Passive |
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<iframe src="https://pcbkit.io/embed/parts/onsemi/BAS19L" title="BAS19L in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/onsemi/BAS19L.jpg" alt="BAS19L" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/BAS19L)Questions
Is there a KiCad symbol and footprint for the BAS19L?
Yes. The symbol is Diode:BAS19 and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the BAS19L?
SOT-23, with 3 pins. Its footprint is drawn on this page.
Where is the BAS19L datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the BAS19L?
JLCPCB lists it as part C232582, with 8,470 in stock; the sellers' links on this page open their listings.
What can replace the BAS19L?
Parts like it in the library: the BAS20L by onsemi, the BAS21 by hongjiacheng, the BAS21 by Guangdong Hottech and the BAS21 by FOSAN. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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