Skip to main content
Texas Instruments MC79L12ACLPR — Discrete Semiconductors
Texas Instruments

MC79L12ACLPR -12V Fixed Negative Linear Regulator, 100 mA

MPNMC79L12ACLPR
End of Life

onsemi MC79L12ACLPR, negative fixed linear regulator, -12V output, 100 mA, TO-92-3 through-hole package, PSRR 42 dB at 120 Hz, 0°C to 125°C operating temperature.

$0.45Ref. price · indicative, final on quote
MC79L12ACLPR datasheet
PackagingTO-226-3, TO-92-3 (TO-226AA) Formed Leads
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

MC79L12ACLPR Technical Specifications
ParameterValue
Output typeFixed
Mounting typeThrough Hole
Voltage - input-27V
Voltage dropout1.7V @ 40mA
Voltage - output (Min (Fixed))-12V
Current - output100mA
Operating temperature0°C ~ 125°C
PSRR42dB (120Hz)
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-226-3, TO-92-3 (TO-226AA) Formed Leads
Protection featuresOver Temperature, Short Circuit
Number of regulators1
Output configurationNegative

Product details

Fixed -12 V negative rail for bias and auxiliary supplies

The onsemi MC79L12ACLPR is a fixed -12 V output negative linear regulator in a TO-92-3 through-hole package. It delivers up to 100 mA — enough for op-amp rails, small-signal bias, or a local negative supply on a mixed-signal board. The output is fixed at -12 V with no adjust pin, so the BOM gets exactly that voltage; no external resistor divider needed. PSRR is 42 dB at 120 Hz. Dropout voltage is 1.7 V max at 40 mA. Operating temperature range is 0°C to 125°C — commercial grade, fine for indoor equipment, office gear, and appliance PCBs.

Package and mounting — through-hole, formed leads

The MC79L12ACLPR comes in a TO-92-3 package with formed leads, through-hole mount.

Lifecycle and sourcing

The MC79L12ACLPR is listed as Active on the lifecycle record, with RoHS3 compliance. No end-of-life notice or last-time-buy window is in effect. That means it remains a safe choice for new designs and ongoing production — no forced redesign from obsolescence.

Frequently asked questions

What is MC79L12ACLPR's PSRR?

PSRR is 42 dB at 120 Hz — effective at filtering mains-frequency ripple from the negative rail.

Can MC79L12ACLPR replace MC79L12AC?

The MC79L12ACLPR is the Tape & Reel packaged variant of the same -12 V fixed regulator. The bare die and electrical specs are identical; the difference is the shipping medium. If your BOM calls for the 'AC' suffix in bulk tube, the 'LPR' variant in cut tape or reel is a functional drop-in — just verify the package form factor matches your assembly process.