MMSZ43T1G Zener diode with 43V nominal voltage and 500mW power rating in a SOD-123 surface mount package. Suitable for voltage regulation applications.
Mfr Part #:

MMSZ43T1G

Available from 4 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener diode with 43V nominal voltage and 500mW power rating in a SOD-123 surface mount package. Suitable for voltage regulation applications.
✓ Total Stock: 86,218 pcs
$ Price Range: $0.03 - $0.17

MMSZ43T1G Available from 4 distributors

✓ Authorised
✓ Non-Authorised

MMSZ43T1G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Impedance (Max) (Zzt)
Mounting Type
Operating Temperature
Power
SVHC Present
Supplier Device Package
Tape & Reel
Tolerance
Voltage

MMSZ43T1G Description

Short technical summary and product information.

The MMSZ43T1G is a 43V Zener diode from On Semiconductor's MMSZxxxT1G series, designed for voltage regulation and protection in low-power circuits. It offers a maximum power dissipation of 500mW on standard FR-4 or FR-5 boards.

 

Key electrical characteristics include a forward voltage of 900mV at 10mA, Zener impedance of 150Ω at IZT, and reverse leakage current of 50nA at 30.1V. The device features a ±5% Zener voltage tolerance and operates over a junction temperature range of -55°C to 150°C.

 

The diode is housed in a compact SOD-123 surface mount package, optimized for automated assembly and high-density PCB designs. It is RoHS3 compliant and has an MSL rating of 1 (unlimited), though these compliance claims are unverified.

MMSZ43T1G Quick Information

Product Type: Zener Diode
Series: MMSZxxxT1G Series
Canonical Name: Zener Diode 43V 500mW SOD-123 Surface Mount
Subcategory: Single Zener Diode

MMSZ43T1G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

MMSZ43T1G Estimated Pricing

Qty Low High
1+ $0.17 $0.17
10+ $0.10 $0.10
100+ $0.06 $0.06
500+ $0.05 $0.05
1,000+ $0.04 $0.04
3,000+ $0.03 $0.03
6,000+ $0.03 $0.03

Estimated market price range - modelled values for guidance only, not live distributor offers.

MMSZ43T1G Features

  • 43V Zener voltage for regulation.
  • 500mW power dissipation rating.
  • Surface mount SOD-123 package.
  • ±5% Zener voltage tolerance.
  • Operating temperature range -55°C to 150°C.

MMSZ43T1G Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection for sensitive components.
  • Reference voltage in bias networks.
  • Clamping in signal conditioning.

MMSZ43T1G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of MMSZ43T1G?

43V.

What is the power dissipation rating?

500mW maximum.

What is the forward voltage at 10mA?

900mV maximum.

What is the package type?

SOD-123 surface mount.

What is the operating temperature range?

-55°C to 150°C.

What is the Zener impedance?

150Ω at IZT.

What is the reverse leakage current?

50nA maximum at 30.1V.

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