
Overview
The FMMT591 is a bipolar made by PJSEMI in a SOT-23 package with 3 pins. 1 PNP 100nA 150MHz 1A 300 500mW 5V 600mV 60V PNP SOT-23 Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Transistors:PNP B1 E2 C3, from CERN's library) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 4,237 are in stock at JLCPCB (part C686646).
Symbol
Footprint
From the datasheet
6- Collector-emitter, most
- 60 V · Collector emitter voltage magnitude, absolute max · p. 1
- Collector current, most
- 1 A · Continuous collector current magnitude, max at 25℃ ambient · p. 1
- Junction, hottest
- 150 °C · Junction temperature, absolute max · p. 1
- Current gain, least
- 100 · DC current gain, min at -VCE = 5 V, -IC = 1 mA · p. 2
- Current gain, least
- 80 · DC current gain, min at -VCE = 5 V, -IC = 1 A · p. 2
- Current gain, least
- 15 · DC current gain, min at -VCE = 5 V, -IC = 2 A · p. 2
What it is and has
2- On-resistance
- Low equivalent on-resistance · p. 1
- Complementary transistor
- FMMT491 · p. 1
Specifications
23| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Collector Base Voltage -VCBO | 25℃ ambient temperature unless otherwise specified | max 80 V | 1 |
| Collector Emitter Voltage -VCEO | 25℃ ambient temperature unless otherwise specified | max 60 V | 1 |
| Emitter Base Voltage -VEBO | 25℃ ambient temperature unless otherwise specified | max 5 V | 1 |
| Collector Current -IC | 25℃ ambient temperature unless otherwise specified | max 1 A | 1 |
| Peak Pulse Current -ICM | 25℃ ambient temperature unless otherwise specified | max 2 A | 1 |
| Power Dissipation PD | 25℃ ambient temperature unless otherwise specified | max 500 mW | 1 |
| Junction Temperature TJ | max 150 ℃ | 1 | |
| Storage Temperature Range TSTG | min -55 · max 150 ℃ | 1 | |
| DC Current Gain note1 HFE | 25℃ ambient; -VCE = 5 V, -IC = 1 mA; pulsed, Pulse width ≤ 300uS, Duty cycle2% | min 100 - | 2 |
| DC Current Gain note1 HFE | 25℃ ambient; -VCE = 5 V, -IC = 500 mA; pulsed, Pulse width ≤ 300uS, Duty cycle2% | min 100 · max 300 - | 2 |
| DC Current Gain note1 HFE | 25℃ ambient; -VCE = 5 V, -IC = 1 A; pulsed, Pulse width ≤ 300uS, Duty cycle2% | min 80 - | 2 |
| DC Current Gain note1 HFE | 25℃ ambient; -VCE = 5 V, -IC = 2 A; pulsed, Pulse width ≤ 300uS, Duty cycle2% | min 15 - | 2 |
| Collector Base Cutoff Current -ICBO | 25℃ ambient; -VCB = 60 V | max 100 nA | 2 |
| Emitter Base Cutoff Current -IEBO | 25℃ ambient; -VEB = 5.6 V | max 100 nA | 2 |
| Collector Base Breakdown Voltage -V(BR)CBO | 25℃ ambient; -IC = 100 uA | min 80 V | 2 |
| Collector Emitter Breakdown Voltage -V(BR)CEO | 25℃ ambient; -IC = 10 mA | min 60 V | 2 |
| Emitter Base Breakdown Voltage -V(BR)EBO | 25℃ ambient; -IE = 100 uA | min 5 V | 2 |
| Collector Emitter Saturation Voltage note1 -VCE(sat) | 25℃ ambient; -IC = 500 mA, -IB = 50 mA; pulsed, Pulse width ≤ 300uS, Duty cycle2% | max 300 mV | 2 |
| Collector Emitter Saturation Voltage note1 -VCE(sat) | 25℃ ambient; -IC =1 A, -IB = 100 mA; pulsed, Pulse width ≤ 300uS, Duty cycle2% | max 600 mV | 2 |
| Base Emitter Saturation Voltage note1 -VBE(sat) | 25℃ ambient; -IC = 1 A, -IB = 100 mA; pulsed, Pulse width ≤ 300uS, Duty cycle2% | max 1.2 V | 2 |
| Base Emitter Voltage note1 -VBE(on) | 25℃ ambient; -VCE = 5 V, -IC = 1 A; pulsed, Pulse width ≤ 300uS, Duty cycle2% | max 1 V | 2 |
| Transition Frequency FT | 25℃ ambient; -VCE = 10 V, -IC = 50 mA, f= 100MHz | min 150 MHz | 2 |
| Collector Output Capacitance Cob | 25℃ ambient; -VCB = 10 V, f= 1MHz | max 10 pF | 2 |
Pins, by the datasheet
3- 1 Base
- Base · p. 1
- 2 Emitter
- Emitter · p. 1
- 3 Collector
- Collector · p. 1
Ordering codes, by the datasheet
1- FMMT591
- SOT-23 · 7-inch reel; shipping quantity 3,000 · p. 4
Parameters
12- Collector - Emitter Voltage VCEO
- 60V
- Configuration
- Standalone
- Current - Collector Cutoff
- 100nA
- Current - Collector(Ic)
- 1A
- DC Current Gain
- 300
- Emitter-Base Voltage(Vebo)
- 5V
- Junction Temperature(Max)
- 150℃
- Number
- 1 PNP
- Pd - Power Dissipation
- 500mW
- Transition frequency(fT)
- 150MHz
- Vce Saturation(VCE(sat))
- 600mV
- type
- PNP
Order codes
1- FMMT591LCSC C686646
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | B | Passive |
| 2 | E | Passive |
| 3 | C | Passive |
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<iframe src="https://pcbkit.io/embed/parts/pjsemi/FMMT591" title="FMMT591 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/pjsemi/FMMT591.jpg" alt="FMMT591" width="1200" height="900">[](https://pcbkit.io/parts/pjsemi/FMMT591)Questions
Is there a KiCad symbol and footprint for the FMMT591?
Yes. The symbol is Transistors:PNP B1 E2 C3 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 FMMT591?
SOT-23, with 3 pins. Its footprint is drawn on this page.
Where is the FMMT591 datasheet?
PJSEMI publishes it: the Datasheet link on this page opens it.
Where can I order the FMMT591?
JLCPCB lists it as part C686646, with 4,237 in stock; the sellers' links on this page open their listings.
What can replace the FMMT591?
Parts like it in the library: the 8550M-D by Foshan Blue Rocket Elec, the SS8550 by MSKSEMI, the PBSS4160T by Nexperia and the S8550 2TY-TD(0.35) by TDSEMIC. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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