Key facts
- Brand
- Microsemi
- Model
- 1N5546BUR-1
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-05-09
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Microsemi IN5518BUR-1 to 1N5546BUR-1 Low Voltage Surface Mount 500 mW Avalanche Diodes Datasheet
The Microsemi Low Voltage Surface Mount 500 mW Avalanche Diodes series (IN5518BUR‑1 to 1N5546BUR‑1, also offered as MLL 5518B‑1 to MLL 5546B‑1) provides Zener voltage regulation from 3.3 V to 33 V in a hermetically sealed glass DO‑213AA package. The devices feature an internal metallurgical bond (identified by the “‑1” suffix) and are available in MIL‑PRF‑19500/4 qualified versions (JAN, JANTX, JANTXV) for military applications.
Key specifications include standard voltage tolerance of ±5 % (B suffix) with tighter ±2 % (C suffix) or ±1 % (D suffix) options, a maximum steady‑state power dissipation of 0.5 W, operating temperature range from –65 °C to +175 °C, thermal resistance of 100 °C/W (junction‑to‑end‑cap) or 250 °C/W (junction‑to‑ambient on FR4), and a forward voltage of 1.1 V at 200 mA. Recommended soldering is 260 °C for up to 10 seconds.
Microsemi 1N5546BUR-1 specifications
| Nominal Zener Voltage Range | 3.3 V to 33 V |
|---|---|
| Voltage Tolerance (B suffix) | ±5 % |
| Maximum Steady‑State Power | 0.5 W |
| Operating Temperature Range | -65 °C to +175 °C |
| Thermal Resistance (junction‑to‑end‑cap) | 100 °C/W |
| Forward Voltage @200 mA | 1.1 V |
| Recommended Solder Temperature | 260 °C for 10 s max |
| Package Type | DO‑213AA (SOD80 or MLL34) hermetically sealed glass |
Source: Microsemi IN5518BUR-1 to 1N5546BUR-1 Low Voltage Surface Mount 500 mW Avalanche Diodes Datasheet
All Microsemi 1N5546BUR-1 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What are the recommended soldering conditions?
Solder at 260 °C for a maximum of 10 seconds.
From: Microsemi IN5518BUR-1 to 1N5546BUR-1 Low Voltage Surface Mount 500 mW Avalanche Diodes Datasheet
What is the maximum power dissipation of the diodes?
Each diode can dissipate up to 0.5 W continuously.
From: Microsemi IN5518BUR-1 to 1N5546BUR-1 Low Voltage Surface Mount 500 mW Avalanche Diodes Datasheet
What is the power rating of the IN5518BUR‑1 series?
The diodes are rated for 0.5 W (500 mW) power dissipation.
From: Microsemi IN5518BUR-1 to 1N5546BUR-1 Zener Diode Data Sheet
What temperature range can the diodes operate in?
They operate from –65 °C up to +175 °C.
From: Microsemi IN5518BUR-1 to 1N5546BUR-1 Zener Diode Data Sheet
What are the operating temperature limits?
The diodes operate and can be stored from –65 °C up to +175 °C.