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MMSZ4678T1G Zener diode with nominal voltage 1.8V, power dissipation 500mW, in SOD-123 surface mount package. Suitable for voltage regulation applications.
Mfr Part #:

MMSZ4678T1G

Available from 12 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener diode with nominal voltage 1.8V, power dissipation 500mW, in SOD-123 surface mount package. Suitable for voltage regulation applications.
✓ Total Stock: 1,120,320 pcs
$ Price Range: $0.02 - $0.17

MMSZ4678T1G Available from 12 distributors

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Optech Co.,Limited ✓
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676,020 pcs
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676020 pcs On Request 1 On Request On Request On Request On Request On Request
Seba Components ✓
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180,000 pcs
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180000 pcs On Request 1 On Request On Request On Request On Request On Request
Flip Electronics ✓
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165,000 pcs
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165000 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
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77,547 pcs
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77547 pcs On Request 1 On Request On Request 15+ On Request On Request
Xingangxin ✓
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8,932 pcs
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8932 pcs On Request 1 On Request On Request On Request On Request On Request
Braun Electronic Components ✓
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3,155 pcs
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3155 pcs On Request 1 On Request On Request On Request On Request On Request
MW.FEP S.p.A. ✓
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3,155 pcs
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3155 pcs On Request 1 On Request On Request On Request On Request On Request
OTL Components ✓
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3,000 pcs
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3000 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
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1,402 pcs
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1402 pcs On Request 1 On Request On Request On Request On Request On Request
Speed Components Ltd ✓
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1,080 pcs
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1080 pcs On Request 1 On Request On Request 1350 On Request On Request
Bristol Electronics ✓
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1,025 pcs
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1025 pcs On Request 1 On Request On Request On Request On Request On Request
Trace Tec ✓
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4 pcs
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4 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MMSZ4678T1G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Forward Voltage
Mounting Type
Operating Temperature
Power
Supplier Device Package
Tape & Reel
Tolerance
Voltage
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MMSZ4678T1G Description

Short technical summary and product information.

The MMSZ4678T1G from ON Semiconductor is a Zener diode designed for voltage regulation in low-power circuits. It offers a nominal zener voltage of 1.8V with a tolerance of ±5% and a maximum power dissipation of 500mW when mounted on FR-5 board. The device features a low forward voltage of 900mV at 10mA forward current and a reverse leakage current of 7.5µA at 1V reverse voltage.

 

This Zener diode is housed in the compact SOD-123 surface mount package, which is optimized for automated assembly processes. The package is rated for soldering temperatures up to 260°C for 10 seconds and carries a UL 94 V-0 flammability rating. The device operates over a junction temperature range of -55°C to 150°C, with thermal resistance of 340°C/W junction-to-ambient and 150°C/W junction-to-lead.

 

Designed for general-purpose voltage regulation, the MMSZ4678T1G is suitable for reference, clamping, and protection circuits. It is ESD rated Class 3 (>16 kV) per the Human Body Model, providing robust electrostatic discharge protection. The device is Pb-free and RoHS compliant, meeting current environmental standards.

MMSZ4678T1G Quick Information

Product Type: Zener Diode
Series: MMSZ4xxxT1G
Canonical Name: Zener Diode 1.8V 500mW SOD-123 MMSZ4678T1G
Subcategory: Single Zener Diode

MMSZ4678T1G Compliance

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

MMSZ4678T1G 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+ $0.02 $0.02

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

MMSZ4678T1G Features

  • Zener voltage of 1.8V with ±5% tolerance.
  • Power dissipation rating of 500mW on FR-5 board.
  • Surface mount SOD-123 package for automated assembly.
  • ESD rating Class 3 (>16 kV) per Human Body Model.
  • RoHS compliant and Pb-free.

MMSZ4678T1G Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection and clamping applications.
  • Reference voltage generation in analog circuits.
  • Consumer electronics power management.

MMSZ4678T1G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the zener voltage of MMSZ4678T1G?

The nominal zener voltage is 1.8V with a tolerance of ±5%.

What is the forward voltage of this diode?

The forward voltage is 900 mV at a forward current of 10 mA.

What package does MMSZ4678T1G come in?

The device is packaged in a surface mount SOD-123 case.

What is the power dissipation rating?

The total power dissipation is 500 mW when mounted on an FR-5 board.

What is the operating temperature range?

The junction and storage temperature range is -55°C to 150°C.

What is the reverse leakage current?

The reverse leakage current is 7.5 µA maximum at a reverse voltage of 1 V.

What is the ESD rating of MMSZ4678T1G?

The device has an ESD rating of Class 3 (>16 kV) per the Human Body Model.

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