Datasheets
1N5254B by:
Fairchild Semiconductor Corporation

Zener Diode, 27V V(Z), 5%, 0.5W, Silicon, Unidirectional, DO-35, GLASS PACKAGE-2

Part Details for 1N5254B by Fairchild Semiconductor Corporation

Results Overview of 1N5254B by Fairchild Semiconductor Corporation

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1N5254B Information

1N5254B 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 1N5254B

Part # Distributor Description Stock Price Buy
DISTI # 2156-1N5254B-ND
DigiKey DIODE ZENER 27V 500MW DO204AH Min Qty: 78 Lead time: 1 Weeks Container: Bulk MARKETPLACE PRODUCT 138210
In Stock
  • 78 $3.8500
$3.8500 Buy Now
Bristol Electronics   Min Qty: 48 23500
  • 48 $0.1058
  • 143 $0.0705
  • 498 $0.0176
  • 4,263 $0.0106
  • 11,794 $0.0090
  • 22,224 $0.0085
$0.0085 / $0.1058 Buy Now
Quest Components ZENER DIODE,SINGLE, TWO TERMINAL,27V V(Z),5%,DO-204AA 18800
  • 1 $0.1410
  • 1,065 $0.0141
  • 14,185 $0.0122
$0.0122 / $0.1410 Buy Now
Quest Components ZENER DIODE,SINGLE, TWO TERMINAL,27V V(Z),5%,DO-204AA 18800
  • 1 $0.1500
  • 742 $0.0450
  • 8,890 $0.0300
$0.0300 / $0.1500 Buy Now
Quest Components ZENER DIODE,SINGLE, TWO TERMINAL,27V V(Z),5%,DO-204AA 35
  • 1 $0.0450
$0.0450 Buy Now
Rochester Electronics Zener Diode, 27V, 5%, 0.5W, Unidirectional, DO-204AH RoHS: Compliant Status: Obsolete Min Qty: 1 140254
  • 25 $3.7000
  • 100 $3.5200
  • 500 $3.3300
  • 1,000 $3.1500
  • 10,000 $2.9600
$2.9600 / $3.7000 Buy Now

Part Details for 1N5254B

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1N5254B Part Data Attributes

1N5254B Fairchild Semiconductor Corporation
Buy Now Datasheet
Compare Parts:
1N5254B Fairchild Semiconductor Corporation Zener Diode, 27V V(Z), 5%, 0.5W, Silicon, Unidirectional, DO-35, GLASS PACKAGE-2
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Transferred
Ihs Manufacturer FAIRCHILD SEMICONDUCTOR CORP
Part Package Code DO-35
Package Description GLASS PACKAGE-2
Pin Count 2
Manufacturer Package Code AXIAL LEADED; GLASS; JEDEC DO204 ; VARIATION AH
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 41 Ω
JEDEC-95 Code DO-35
JESD-30 Code O-LALF-W2
JESD-609 Code e3
Number of Elements 1
Number of Terminals 2
Operating Temperature-Max 200 °C
Package Body Material GLASS
Package Shape ROUND
Package Style LONG FORM
Polarity UNIDIRECTIONAL
Power Dissipation-Max 0.5 W
Qualification Status Not Qualified
Reference Voltage-Nom 27 V
Surface Mount NO
Technology ZENER
Terminal Finish MATTE TIN
Terminal Form WIRE
Terminal Position AXIAL
Voltage Tol-Max 5%
Working Test Current 4.6 mA

Alternate Parts for 1N5254B

This table gives cross-reference parts and alternative options found for 1N5254B. 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 1N5254B, 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
1N5259-B Vishay Semiconductors Check for Price 39V, 0.5W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-204AH, GLASS, DO-35, 2 PIN 1N5254B vs 1N5259-B
1N5257BRL2 onsemi Check for Price DIODE 33 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-204AH, HERMETIC SEALED, GLASS, DO-35, 2 PIN, Voltage Regulator Diode 1N5254B vs 1N5257BRL2
1N5259BRL onsemi Check for Price 39V, 0.5W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-204AH, HERMETIC SEALED, GLASS, DO-35, 2 PIN 1N5254B vs 1N5259BRL
1N5257BRL onsemi Check for Price 33V, 0.5W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-204AH, HERMETIC SEALED, GLASS, DO-35, 2 PIN 1N5254B vs 1N5257BRL
1N5254BTA onsemi Check for Price 27V, 0.5W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-204AH, HERMETIC SEALED, GLASS, DO-35, 2 PIN 1N5254B vs 1N5254BTA
1N5257BRL2 Motorola Mobility LLC Check for Price 33V, 0.5W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-204AH, GLASS, DO-35, 2 PIN 1N5254B vs 1N5257BRL2
1N5259BTA2 onsemi Check for Price 39V, 0.5W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-204AH, HERMETIC SEALED, GLASS, DO-35, 2 PIN 1N5254B vs 1N5259BTA2
1N5254BT26R National Semiconductor Corporation Check for Price DIODE 27 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-35, Voltage Regulator Diode 1N5254B vs 1N5254BT26R
1N5257BRR1 onsemi Check for Price 33V, 0.5W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-204AH, HERMETIC SEALED, GLASS, DO-35, 2 PIN 1N5254B vs 1N5257BRR1
Part Number Manufacturer Composite Price Description Compare
1N5257BTR Fairchild Semiconductor Corporation Check for Price Zener Diode, 33V V(Z), 5%, 0.5W, Silicon, Unidirectional, DO-35, GLASS PACKAGE-2 1N5254B vs 1N5257BTR
1N5254BTR Fairchild Semiconductor Corporation Check for Price Zener Diode, 27V V(Z), 5%, 0.5W, Silicon, Unidirectional, DO-35, GLASS PACKAGE-2 1N5254B vs 1N5254BTR
1N5257B Fairchild Semiconductor Corporation Check for Price Zener Diode, 33V V(Z), 5%, 0.5W, Silicon, Unidirectional, DO-35, GLASS PACKAGE-2 1N5254B vs 1N5257B
1N5259B Fairchild Semiconductor Corporation Check for Price Zener Diode, 39V V(Z), 5%, 0.5W, Silicon, Unidirectional, DO-35, GLASS PACKAGE-2 1N5254B vs 1N5259B

1N5254B Related Parts

1N5254B Frequently Asked Questions (FAQ)

  • The recommended operating temperature range for the 1N5254B is -65°C to 150°C, although the datasheet only specifies the electrical characteristics at 25°C.

  • To ensure the 1N5254B can handle high-frequency switching applications, consider the diode's reverse recovery time (trr), which is not specified in the datasheet. The trr of the 1N5254B is typically around 50-100 ns. You may need to add additional components, such as a snubber circuit, to minimize ringing and ensure reliable operation.

  • The datasheet does not specify a maximum surge current rating for the 1N5254B. However, as a general rule, the surge current rating for a standard rectifier diode like the 1N5254B is typically around 10-20 times the average current rating. In this case, the average current rating is 5A, so the surge current rating would be around 50-100A.

  • The 1N5254B has a maximum repetitive peak reverse voltage (Vrrm) of 250V, which may not be sufficient for high-voltage applications. If you need to handle higher voltages, consider using a different diode with a higher Vrrm rating or adding additional components, such as a voltage multiplier or a series string of diodes, to increase the overall voltage rating.

  • To ensure the 1N5254B is properly biased in a circuit, consider the diode's forward voltage drop (Vf) and reverse voltage (Vr) characteristics. The Vf of the 1N5254B is typically around 0.8-1.2V, and the Vr is typically around 250V. You may need to add additional components, such as resistors or voltage regulators, to ensure the diode is properly biased and operating within its specified ratings.

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