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1N5229BTR The 1N5229BTR from On Semiconductor is a 4.3V Zener diode rated at 500mW power dissipation. It comes in a DO-35 through-hole package.
Mfr Part #:

1N5229BTR

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The 1N5229BTR from On Semiconductor is a 4.3V Zener diode rated at 500mW power dissipation. It comes in a DO-35 through-hole package.
✓ Total Stock: 41,623 pcs

1N5229BTR Available from 2 distributors

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40,000 pcs
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1,623 pcs
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1623 pcs On Request 1 On Request On Request 15+ On Request On Request
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1N5229BTR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Forward Voltage
Halogen Free
Impedance (Max) (Zzt)
Lead Style
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Power
Power Dissipation
Storage Temperature
Supplier Device Package
Tape & Reel
Temperature Coefficient
Tolerance
Voltage
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1N5229BTR Description

Short technical summary and product information.

The 1N5229BTR is a 4.3V nominal Zener diode from onsemi, part of the 1N5221B-1N5252B family. It offers ±5% tolerance and a power dissipation of 500mW, derated at 4.0mW/°C above 50°C. The device features a maximum impedance of 22Ω at 20mA (Zzt) and 2000Ω at 0.25mA (Zzk). Reverse leakage current is 5µA at 1V, and forward voltage is 1.2V at 200mA. The temperature coefficient is ±0.055%/°C. Operating and storage temperature range from -65°C to +200°C. Lead soldering temperature is 230°C for 10 seconds. The diode is housed in a DO-35 (DO-204AH) axial lead package for through-hole mounting, suitable for voltage regulation and reference applications in low-power circuits.

1N5229BTR Quick Information

Product Type: Zener Diode
Series: 1N5221B-1N5252B
Canonical Name: 1N5229BTR Zener Diode 4.3V 500mW DO-35
Subcategory: Single Zener Diode

1N5229BTR Compliance

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

1N5229BTR Features

  • 4.3V nominal Zener voltage with ±5% tolerance.
  • 500mW power dissipation with derating above 50°C.
  • 22Ω maximum impedance at 20mA test current.
  • DO-35 axial lead through-hole package.
  • Operating temperature range from -65°C to +200°C.

1N5229BTR Applications

  • Ideal for voltage regulation in low-power circuits.
  • Use as a voltage reference in precision designs.
  • Suitable for overvoltage protection applications.
  • Used in clamping and waveform shaping circuits.

1N5229BTR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1N5229BTR?

The nominal Zener voltage is 4.3V with a tolerance of ±5%.

What is the power dissipation rating?

The power dissipation is 500mW, derated at 4.0mW/°C above 50°C.

What is the forward voltage?

The forward voltage is 1.2V at a forward current of 200mA.

What package is the 1N5229BTR available in?

The device is available in a DO-35 (DO-204AH) axial lead through-hole package.

What is the reverse leakage current?

The reverse leakage current is 5µA at 1V reverse voltage.

What is the operating temperature range?

The operating junction temperature range is -65°C to +200°C.

What is the temperature coefficient of the Zener voltage?

The temperature coefficient is ±0.055%/°C.

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