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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206

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LM336BZ-2.5

Texas Instruments · Voltage Reference · TO-92-3

LM336BZ-2.5 from Texas Instruments, in a TO-92-3. 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	ADJ	input	Adjust terminal; connect to an external resistive divider or potentiometer (2 kΩ-20 kΩ) to trim the reference voltage and minimize temperature coefficient; does not affect temperature coefficient when only breakdown voltage is adjusted.
2	K	power_out	Cathode; 2.5 V shunt reference output, 2.440 V min / 2.490 V typ / 2.540 V max (LM336B-2.5, IR = 1 mA, TA = 25 °C); operating reverse current 400 µA to 10 mA, dynamic impedance 0.2 Ω typ / 1 Ω max.
3	A	power_in	Anode; low-side terminal of the shunt regulator, referenced to ground; maximum forward current 10 mA, maximum reverse current 15 mA.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	TO-92-3
Category	Power Management (PMIC)
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		2.44	2.49	2.54	V	TA=25°C, IR=1 mA (LM336B)	4
Reverse Breakdown Change With Current			2.6	10	mV	TA=25°C, 400 μA≤IR≤10 mA (LM336)	4
Reverse Dynamic Impedance			0.2	1	Ω	TA=25°C, IR=1 mA, f = 100 Hz (LM336)	4
Temperature Stability	VR		1.8	6	mV	VR adjusted to 2.490V; IR=1 mA; 0°C≤TA≤70°C (LM336)	4
Reverse Breakdown Change With Current			3	12	mV	400 μA≤IR≤10 mA (LM336)	4
Reverse Dynamic Impedance			0.4	1.4	Ω	IR=1 mA (LM336)	4
Reverse Current				15	mA		3
Forward Current				10	mA		3
Storage Temperature		-60		150	°C		3
Operating Temperature Range		0		70	°C	LM336	3
Tj max for elevated temperature operation	Tj			100	°C	LM336	3
Soldering Information				260	°C	TO-92 package, 10 sec	3
Operating Current lower bound	IR	400			μA	Wide operating current (features list)	1
Operating Current upper bound	IR			10	mA	Wide operating current (features list)	1
Thermal Resistance Junction to Ambient (0.4 in leads)	θja		180		°C/W	TO-92, 0.4″ leads	3
Thermal Resistance Junction to Ambient (0.125 in lead)	θja		170		°C/W	TO-92, 0.125″ lead	3
Long Term Stability			20		ppm	TA=25°C ±0.1°C, IR=1 mA, t = 1000 hrs	4

CAD (KiCad official)

Symbol: LM336BZ-2.5
Footprint: Package_TO_SOT_THT:TO-92_Inline
3D model: TO-92-3 (KiCad packages3D, STEP)
3D model files: lm336bz-2-5-etched.step / lm336bz-2-5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm336bz-2-5.step / lm336bz-2-5.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (27 pp, sha256 359d2a533c8aa238, retrieved 2026-10-20, tier: lcsc)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF