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SML4738A-E3/61 Vishay SML4738A-E3/61 is a 8.2V Zener diode rated at 1W maximum power dissipation, packaged in DO-214AC (SMA) for surface mount applications.
Mfr Part #:

SML4738A-E3/61

Available from 2 distributors
Mfr Name: Vishay Dale
Vishay Dale
Vishay SML4738A-E3/61 is a 8.2V Zener diode rated at 1W maximum power dissipation, packaged in DO-214AC (SMA) for surface mount applications.
Total Stock: 98,200 pcs
$ Price Range: $0.17 - $0.86

SML4738A-E3/61 Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
97,200 pcs
97200 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
1,000 pcs
1000 pcs On Request 1 On Request On Request On Request On Request On Request

SML4738A-E3/61 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
AEC-Q101
Automotive Grade
Current
Impedance (Max) (Zzt)
Industrial Grade
Medical Grade
Military Grade
Mounting Method
Mounting Type
Operating Temperature
Package Type
Power
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Finish
Test Current (Izt)
Tolerance
Voltage

SML4738A-E3/61 Description

Short technical summary and product information.

The Vishay SML4738A-E3/61 is a 8.2V Zener diode from the SML47xxA series, designed for surface mount applications. It features a nominal Zener voltage of 8.2V with ±5% tolerance, making it suitable for voltage regulation and reference circuits. The device can dissipate up to 1W of power at a lead temperature of 75°C, with a maximum junction temperature of 150°C.

 

This Zener diode offers low dynamic impedance of 4.5Ω at the test current of 31mA, ensuring stable voltage regulation under varying current conditions. The reverse leakage current is limited to 10µA at a reverse voltage of 6V. The DO-214AC (SMA) package is compatible with standard surface mount assembly processes and is rated MSL Level 1 (unlimited) per J-STD-020.

 

The part is RoHS compliant with matte tin termination finish. It is a commercial grade device and is not AEC-Q101 qualified, though the HE3 suffix variant is available for automotive applications. Suitable for general purpose voltage regulation, overvoltage protection, and reference voltage generation in consumer and industrial electronics.

SML4738A-E3/61 Quick Information

Product Type: Zener Diode
Series: SML4738A
Canonical Name: Vishay SML4738A-E3/61 8.2V Zener Diode
Subcategory: Surface Mount Zener Diode

SML4738A-E3/61 Compliance

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

SML4738A-E3/61 Estimated Pricing

Qty Low High
1+ $0.86 $0.86
10+ $0.53 $0.53
100+ $0.35 $0.35
500+ $0.26 $0.26
1,800+ $0.22 $0.22
3,600+ $0.20 $0.20
5,400+ $0.19 $0.19
9,000+ $0.18 $0.18
12,600+ $0.17 $0.17
18,000+ $0.17 $0.17

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

SML4738A-E3/61 Features

  • 8.2V nominal Zener voltage with ±5% tolerance.
  • 1W maximum power dissipation at 75°C lead temperature.
  • Low dynamic impedance of 4.5Ω for stable regulation.
  • Surface mount DO-214AC (SMA) package.
  • RoHS compliant and MSL Level 1.

SML4738A-E3/61 Applications

  • Voltage regulation in power supply circuits.
  • Overvoltage protection for sensitive components.
  • Reference voltage generation in analog circuits.
  • General purpose clamping and limiting applications.

SML4738A-E3/61 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the SML4738A-E3/61?

The nominal Zener voltage is 8.2V with a tolerance of ±5%.

What is the maximum power dissipation of this Zener diode?

The maximum power dissipation is 1W at a lead temperature of 75°C.

What package does the SML4738A-E3/61 come in?

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

Is this part RoHS compliant?

The part is listed as RoHS3 compliant, but this status is not verified. The E3 suffix indicates RoHS-compliant commercial grade.

What is the operating temperature range?

The maximum junction temperature is 150°C. Storage temperature range is -65°C to +150°C.

What is the leakage current at 6V reverse voltage?

The maximum reverse leakage current is 10µA at a reverse voltage of 6V.

Is the SML4738A-E3/61 AEC-Q101 qualified?

No, this part (E3 suffix) is commercial grade and not AEC-Q101 qualified. The HE3 suffix variant is qualified for automotive applications.

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