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ROHM Semiconductor FMA5AT148 — Memory (DRAM / SRAM / Flash / EEPROM)
ROHM Semiconductor

FMA5AT148 Pre-Biased Dual PNP Transistor, 50V, 100mA

MPNFMA5AT148
End of Life

ROHM FMA5AT148, dual PNP pre-biased transistor, 50V Vce, 100mA Ic, 300mW, built-in R1=2.2kΩ, R2=47kΩ, SOT-753 surface-mount package.

$0.53Ref. price · indicative, final on quote
FMA5AT148 datasheet
PackagingSC-74A, SOT-753
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

FMA5AT148 Technical Specifications
ParameterValue
Mounting typeSurface Mount
FET type2 PNP - Pre-Biased (Dual)
Voltage - collector emitter breakdown50V
Current - collector (Ic)100mA
Current - collector cutoff500nA
DC current gain (hFE) (Min) @ ic, vce80 @ 10mA, 5V
Power - max300mW
Frequency250MHz
PackageTape & Reel (TR); Cut Tape (CT)
CaseSC-74A, SOT-753
Resistor - base (R1)2.2kOhms
Resistor - emitter base (R2)47kOhms
Vce saturation (Max) @ ib, ic300mV @ 250µA, 5mA

Product details

Dual PNP pre-biased transistor with integrated bias network

The ROHM FMA5AT148 integrates two PNP pre-biased transistors in a single SOT-753 (SC-74A) surface-mount package. Each transistor includes a 2.2kΩ series base resistor and a 47kΩ base-emitter resistor, eliminating two external resistors per channel and reducing PCB area.

Built-in bias resistors simplify the BOM

The integrated bias network (R1 = 2.2kΩ, R2 = 47kΩ) sets a fixed turn-on threshold and provides base current limiting. This saves two resistors per transistor — four components eliminated versus a discrete PNP pair. The 250MHz transition frequency supports switching up to low-MHz rates, suitable for relay drivers, LED indicators, and logic-level translation.

ROHS3 compliant.

Frequently asked questions

Is FMA5AT148 obsolete or still active?

The FMA5AT148 is listed as active by the manufacturer. No discontinuation or last-time-buy status has been issued.

What is the maximum collector current of FMA5AT148?

The maximum collector current (Ic) is 100mA per transistor. This is the continuous current limit; peak pulsed current may be higher, but the 300mW total package power dissipation must be respected.

What is the closest functional second-source for FMA5AT148?

The UMA5NTR is a parametric match: same dual PNP pre-biased configuration, same 2.2kΩ / 47kΩ resistor values, same 50V Vce and 100mA Ic ratings, same 250MHz transition frequency. The UMA5NTR has a lower 150mW power dissipation versus the FMA5AT148's 300mW, so check the thermal budget before substituting.