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1SMA4728_R1_00001 PANJIT 1SMA4728 is a 3.3V surface mount Zener diode rated for 1W power dissipation with ±5% tolerance. Housed in a DO-214AC (SMA) package.
Mfr Part #:

1SMA4728_R1_00001

Available from 1 distributors
Mfr Name: PANJIT
PANJIT
PANJIT 1SMA4728 is a 3.3V surface mount Zener diode rated for 1W power dissipation with ±5% tolerance. Housed in a DO-214AC (SMA) package.
✓ Total Stock: 803 pcs
$ Price Range: $0.07 - $0.35

1SMA4728_R1_00001 Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
803 pcs
On Request
803 pcs On Request 1 On Request On Request 24+ 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.

1SMA4728_R1_00001 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Halogen Free
Impedance (Max) (Zzt)
Industrial Grade
Lead Style
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Power
SVHC Present
Storage Temperature
Supplier Device Package
Tape & Reel
Tolerance
Voltage
Weight
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1SMA4728_R1_00001 Description

Short technical summary and product information.

The PANJIT 1SMA4728 is a surface mount silicon Zener diode designed for voltage regulation and protection applications. It offers a nominal Zener voltage of 3.3V with a tolerance of ±5%, and a maximum power dissipation of 1W (derated above 50°C).

 

The device features a maximum Zener impedance of 10 Ω at 76 mA test current and 400 Ω at 1 mA. Reverse leakage current is limited to 100 µA at 1V reverse voltage. It can withstand a forward surge current of 10A (8.3ms single half sine-wave).

 

The 1SMA4728 is packaged in a DO-214AC (SMA) surface mount package with a color band denoting the cathode. It is RoHS3 compliant and lead free, with an operating junction temperature range of -55°C to 150°C.

1SMA4728_R1_00001 Quick Information

Product Type: Zener Diode
Series: 1SMA4728~1SMA4757
Canonical Name: PANJIT 1SMA4728 Surface Mount Zener Diode, 3.3V, 1W, DO-214AC (SMA)
Subcategory: Single Zener Diode

1SMA4728_R1_00001 Compliance

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

1SMA4728_R1_00001 Estimated Pricing

Qty Low High
1+ $0.35 $0.35
10+ $0.21 $0.21
100+ $0.13 $0.13
500+ $0.10 $0.10
1,000+ $0.08 $0.08
1,800+ $0.07 $0.07

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

1SMA4728_R1_00001 Features

  • 3.3V nominal Zener voltage with ±5% tolerance.
  • 1W power dissipation with derating above 50°C.
  • Surface mount DO-214AC (SMA) package.
  • RoHS3 compliant and lead free.
  • 10A forward surge current capability.

1SMA4728_R1_00001 Applications

  • Voltage regulation in low-power DC circuits.
  • Overvoltage protection for sensitive electronics.
  • Voltage reference in bias networks.
  • Surge suppression in portable devices.

1SMA4728_R1_00001 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1SMA4728?

The nominal Zener voltage is 3.3V, with a minimum of 3.1V and maximum of 3.5V.

What is the power dissipation rating?

The maximum power dissipation is 1W, derated above 50°C.

What package is the 1SMA4728 available in?

It is available in a DO-214AC (SMA) surface mount package.

What is the operating temperature range?

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

Is the 1SMA4728 RoHS compliant?

Yes, it is RoHS3 compliant and lead free as per the datasheet.

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