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LM385Z-2.5G

onsemi · Voltage References · TO-92

LM385Z-2.5G from onsemi, in a TO-92. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 N.C. unconnected Not connected; the datasheet lists this lead as no-connect and gives no function for it.
2 Cathode passive Cathode of the two-terminal bandgap voltage reference diode, which for the 2.500 V version has a minimum operating current (IRmin) of 13 µA and a maximum reverse current of 30 mA.
3 Anode passive Anode of the two-terminal bandgap voltage reference diode, which has a maximum forward current of 10 mA.

Key specifications

Parameter Value
Manufacturer onsemi
Package TO-92
Category Power Management ICs
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Reverse Breakdown Voltage (LM385-2.5, non-B) V(BR)R 2.425 2.5 2.575 V IRmin ≤ IR ≤ 20 mA, TA = 25 C 2
Reverse Breakdown Voltage (LM385-2.5, non-B) V(BR)R 2.4 2.6 V IRmin ≤ IR ≤ 20 mA, TA = Tlow to Thigh (Note 1) 2
Reverse Breakdown Voltage Change with Current V(BR)R 2 mV IRmin ≤ IR ≤ 1.0 mA, TA = +25 C 3
Reverse Breakdown Voltage Change with Current V(BR)R 2.5 mV IRmin ≤ IR ≤ 1.0 mA, TA = Tlow to Thigh (Note 2) 3
Reverse Breakdown Voltage Change with Current V(BR)R 20 mV 1.0 mA ≤ IR ≤ 20 mA, TA = +25 C 3
Reverse Breakdown Voltage Change with Current V(BR)R 25 mV 1.0 mA ≤ IR ≤ 20 mA, TA = Tlow to Thigh (Note 2) 3
Operating Ambient Temperature Range (LM385) TA 0 70 C 2
Reverse Current IR 30 mA TA = 25 C, unless otherwise noted 2
Forward Current IF 10 mA TA = 25 C, unless otherwise noted 2
Operating Junction Temperature TJ 150 C TA = 25 C, unless otherwise noted 2
Storage Temperature Range Tstg -65 150 C TA = 25 C, unless otherwise noted 2
Electrostatic Discharge Sensitivity, Human Body Model (HBM) ESD 4000 V TA = 25 C, unless otherwise noted 2
Electrostatic Discharge Sensitivity, Machine Model (MM) ESD 400 V TA = 25 C, unless otherwise noted 2
Electrostatic Discharge Sensitivity, Charged Device Model (CDM) ESD 2000 V TA = 25 C, unless otherwise noted 2

CAD (KiCad official)

  • Symbol: LM385Z-2.5G
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92 (KiCad packages3D, STEP)
  • 3D model files: lm385z-2-5g-etched.step / lm385z-2-5g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm385z-2-5g.step / lm385z-2-5g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (11 pp, sha256 9a381b14de69dd6e, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF