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Diodes / Zener Diodes / 1N4738ATR
Datasheets
1N4738ATR by:
Fairchild Semiconductor Corporation

Zener Diode, 8.2V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, GLASS PACKAGE-2

Part Details for 1N4738ATR by Fairchild Semiconductor Corporation

Results Overview of 1N4738ATR by Fairchild Semiconductor Corporation

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Applications Consumer Electronics Energy and Power Systems Electronic Manufacturing Renewable Energy Automotive

1N4738ATR Information

1N4738ATR by Fairchild Semiconductor Corporation is a Zener Diode.
Zener Diodes are under the broader part category of Diodes.

A diode is a electrical part that can control the direction in which the current flows in a device. Consider factors like voltage drop, current capacity, reverse voltage, and operating frequency when selecting a diode. Read more about Diodes on our Diodes part category page.

Price & Stock for 1N4738ATR

Part # Distributor Description Stock Price Buy
DISTI # 2156-1N4738ATR-ND
DigiKey DIODE ZENER 8.2V 1W DO204AL Min Qty: 8013 Lead time: 1 Weeks Container: Bulk MARKETPLACE PRODUCT 12900
In Stock
  • 8,013 $0.0400
$0.0400 Buy Now
Bristol Electronics   Min Qty: 45 9206
  • 45 $0.1125
  • 135 $0.0750
  • 468 $0.0188
  • 3,991 $0.0113
$0.0113 / $0.1125 Buy Now
Bristol Electronics   Min Qty: 45 1600
  • 45 $0.1125
  • 135 $0.0750
  • 468 $0.0188
$0.0188 / $0.1125 Buy Now
Quest Components ZENER DIODE, 8.2V V(Z), 5%, 1W, SILICON, UNIDIRECTIONAL, DO-41 2797
  • 1 $0.1500
  • 201 $0.0500
  • 1,001 $0.0150
$0.0150 / $0.1500 Buy Now
Quest Components ZENER DIODE, 8.2V V(Z), 5%, 1W, SILICON, UNIDIRECTIONAL, DO-41 1280
  • 1 $0.1500
  • 201 $0.0500
  • 1,001 $0.0150
$0.0150 / $0.1500 Buy Now
Quest Components ZENER DIODE, 8.2V V(Z), 5%, 1W, SILICON, UNIDIRECTIONAL, DO-41 478
  • 1 $0.0788
  • 64 $0.0591
  • 170 $0.0493
$0.0493 / $0.0788 Buy Now
Rochester Electronics Zener Diode, 8.2V, 5%, 1W RoHS: Not Compliant Status: Active Min Qty: 1 12900
  • 100 $0.0360
  • 500 $0.0324
  • 1,000 $0.0299
  • 10,000 $0.0266
  • 100,000 $0.0223
$0.0223 / $0.0360 Buy Now
Component Electronics, Inc IN STOCK SHIP TODAY 500
  • 1 $0.7700
  • 100 $0.5800
  • 1,000 $0.5000
$0.5000 / $0.7700 Buy Now

Part Details for 1N4738ATR

1N4738ATR CAD Models

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1N4738ATR Part Data Attributes

Parametric Data
1N4738ATR Fairchild Semiconductor Corporation
Buy Now Datasheet
Compare Parts:
1N4738ATR Fairchild Semiconductor Corporation Zener Diode, 8.2V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, GLASS PACKAGE-2
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Transferred
Ihs Manufacturer FAIRCHILD SEMICONDUCTOR CORP
Part Package Code DO-41
Package Description GLASS PACKAGE-2
Pin Count 2
Manufacturer Package Code AXIAL LEADED; GLASS; JEDEC DO204; VARIATION AL
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8541.10.00.50
Case Connection ISOLATED
Configuration SINGLE
Diode Element Material SILICON
Diode Type ZENER DIODE
Dynamic Impedance-Max 4.5 Ω
JEDEC-95 Code DO-41
JESD-30 Code O-LALF-W2
JESD-609 Code e3
Number of Elements 1
Number of Terminals 2
Operating Temperature-Max 200 °C
Operating Temperature-Min -65 °C
Package Body Material GLASS
Package Shape ROUND
Package Style LONG FORM
Polarity UNIDIRECTIONAL
Power Dissipation-Max 1 W
Qualification Status Not Qualified
Reference Voltage-Nom 8.2 V
Surface Mount NO
Technology ZENER
Terminal Finish MATTE TIN
Terminal Form WIRE
Terminal Position AXIAL
Voltage Tol-Max 5%
Working Test Current 31 mA

Alternate Parts for 1N4738ATR

This table gives cross-reference parts and alternative options found for 1N4738ATR. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of 1N4738ATR, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
1N4738A-13 Diodes Incorporated Check for Price Zener Diode, 8.2V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41 1N4738ATR vs 1N4738A-13
1N4738A RFE International Inc Check for Price Zener Diode, 8.2V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, GLASS, DO-41G, 2 PIN 1N4738ATR vs 1N4738A
1N4738A-T Diodes Incorporated Check for Price Zener Diode, 8.2V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, ROHS COMPLIANT, GLASS PACKAGE-2 1N4738ATR vs 1N4738A-T
1N4738A onsemi Check for Price Zener 1W 5% 8.2 V, Axial Lead / DO-41, 3000-BLKBG 1N4738ATR vs 1N4738A
1N4738A Excel (Suzhou) Semiconductor Co Ltd Check for Price Zener Diode, 8.2V V(Z), 5%, 1W 1N4738ATR vs 1N4738A
1N4738ATR Central Semiconductor Corp Check for Price Zener Diode, 8.2V V(Z), 1W, Silicon, Unidirectional, DO-41, 1N4738ATR vs 1N4738ATR
1N4738AT50A Fairchild Semiconductor Corporation Check for Price DIODE 8.2 V, 1 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-41, Voltage Regulator Diode 1N4738ATR vs 1N4738AT50A
1N4738ATA Motorola Mobility LLC Check for Price 8.2V, 1W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-41, GLASS, CASE 59-03, 2 PIN 1N4738ATR vs 1N4738ATA
1N4738A Fagor Electrónica Check for Price Zener Diode, 8.2V V(Z), 5%, 1W 1N4738ATR vs 1N4738A
1N4738ABK Central Semiconductor Corp Check for Price Zener Diode, 8.2V V(Z), 1W, Silicon, Unidirectional, DO-41, 1N4738ATR vs 1N4738ABK
Part Number Manufacturer Composite Price Description Compare
1N4738A-GT3 Sangdest Microelectronics (Nanjing) Co Ltd Check for Price Zener Diode, 8.2V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, GLASS PACKAGE-2 1N4738ATR vs 1N4738A-GT3
1N4738A Tak Cheong Electronics (Holdings) Co Ltd Check for Price Zener Diode, 8.2V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, ROHS COMPLIANT, HERMETIC SEALED, GLASS PACKAGE-2 1N4738ATR vs 1N4738A
1N4738A(DO41)E3 Microsemi Corporation Check for Price Zener Diode, 8.2V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, DO-41, 2 PIN 1N4738ATR vs 1N4738A(DO41)E3
1N4738A-T3 Sangdest Microelectronics (Nanjing) Co Ltd Check for Price Zener Diode, 8.2V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, GLASS PACKAGE-2 1N4738ATR vs 1N4738A-T3
1N4738A_NL Fairchild Semiconductor Corporation Check for Price Zener Diode, 8.2V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, GLASS PACKAGE-2 1N4738ATR vs 1N4738A_NL
1N4738A Diodes Incorporated Check for Price Zener Diode, 8.2V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, GLASS PACKAGE-2 1N4738ATR vs 1N4738A
1N4738ARL Tak Cheong Electronics (Holdings) Co Ltd Check for Price Zener Diode, 8.2V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, HERMETIC SEALED, GLASS, DO-204AL, 2 PIN 1N4738ATR vs 1N4738ARL
1N4738A153 NXP Semiconductors Check for Price 8.2V, 1W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-41 1N4738ATR vs 1N4738A153
1N4738A-G HY Electronic Corp Check for Price Zener Diode 1N4738ATR vs 1N4738A-G
1N4738A_T50R Fairchild Semiconductor Corporation Check for Price Zener Diode, 8.2V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41 1N4738ATR vs 1N4738A_T50R

1N4738ATR Related Parts

1N4738ATR Frequently Asked Questions (FAQ)

  • The recommended operating temperature range for the 1N4738ATR is -65°C to 150°C, although the datasheet only specifies the electrical characteristics at 25°C.

  • To ensure proper biasing, the 1N4738ATR should be operated within the recommended voltage range (50-100V) and current range (1-30mA). Additionally, the zener voltage should be stabilized with a resistor and capacitor network to prevent oscillations.

  • While the 1N4738ATR can be used in switching power supply applications, it's not the most suitable choice due to its relatively high dynamic impedance and limited power handling capability. A more suitable zener diode with a lower dynamic impedance and higher power rating would be recommended.

  • The 1N4738ATR has a thermal resistance of 20°C/W, which means it can dissipate up to 1.5W of power without exceeding the maximum junction temperature. Ensure proper heat sinking and thermal management in your design to prevent overheating.

  • Yes, to minimize noise and ensure proper operation, keep the 1N4738ATR away from high-frequency signals and ensure a low-impedance path to ground. Also, use a large copper area for heat sinking and consider using a thermal relief pattern to improve heat dissipation.

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