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Microchip Technology 1N6009UR-1/TR
- Part No.:
- 1N6009UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6009UR-1/TR.pdf
- Description:
- DIODE ZENER 24V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,179
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Product details
Overview
1N6009UR-1/TR from Microsemi is a surface-mount 24 V, 5% tolerance Zener diode in DO-213AA (MLL34) MELF package, rated for 500 mW power dissipation at 25°C, with 62 Ω dynamic impedance at 5 mA test current and 0.1 µA reverse leakage at 18 V, used for precision voltage regulation in power supply feedback loops and reference circuits.
For engineers reviewing the 1N6009UR-1/TR datasheet, 1N6009UR-1/TR pinout, 1N6009UR-1/TR application, or 1N6009UR-1/TR equivalent, key selection criteria include Zener voltage tolerance (±5%), thermal resistance (300°C/W), junction temperature range (–65°C to +175°C), low capacitance (<2 pF typical), and RoHS-compliant matte-tin plating for commercial-grade reflow compatibility.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to maintain stable 24 V across its terminals under regulated current conditions (IZT = 5 mA). Its metallurgically bonded glass construction ensures high reliability and radiation hardness per MicroNote 050.
The DO-213AA package enables surface-mount assembly with end-cap soldering, supporting thermal management via FR4 PCB mounting (1 oz Cu, recommended footprint). Polarity is marked by a cathode band, requiring the banded end to be biased positive for Zener operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24 V ±5% at IZT = 5 mA - defines nominal regulation point with tight tolerance for stable reference generation |
| Power Dissipation (PD) | 0.5 W at TA ≤ 25°C - sets maximum continuous power handling on standard FR4 board without derating |
| Dynamic Impedance (ZZT) | 62 Ω at IZT = 5 mA - determines output voltage variation under load transients; lower values improve regulation stability |
| Reverse Leakage (IR) | 0.1 µA at VR = 18 V - ensures minimal parasitic current draw in high-impedance bias networks |
| Junction Temperature Range | –65°C to +175°C - supports operation in extended industrial and aerospace environments without thermal shutdown |
| Thermal Resistance (RθJA) | 300°C/W - quantifies temperature rise per watt on standard FR4; informs heatsinking requirements for sustained 500 mW operation |
| Capacitance (Typ.) | <2 pF - enables use in high-frequency regulation and noise-sensitive analog references without signal coupling |
Pinout & Package
DO-213AA (MLL34) MELF glass package: hermetically sealed cylindrical body with tin-lead or RoHS-compliant matte-tin plated end caps; cathode indicated by single band; polarity critical-banded end must be anode for forward conduction, cathode for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward conduction terminal / Zener cathode reference | Connected to circuit ground or lower potential node when used in shunt regulation configuration |
| Cathode (banded end) | Zener breakdown terminal / regulation output | Biased positive relative to anode to enter reverse breakdown; delivers stable 24 V reference voltage |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Enables operation up to +175°C junction temperature and inherent radiation hardness per MicroNote 050 |
| Metallurgical bonding | Eliminates wire bonds to improve mechanical robustness and long-term reliability under thermal cycling |
| Low 0.1 µA leakage at 75% VZ | Minimizes error in high-impedance voltage divider networks and precision biasing applications |
| RoHS-compliant matte-tin plating | Supports lead-free reflow soldering (260°C/10 s) while maintaining solderability per MIL-STD-750 method 2026 |
| ESD insensitivity | Withstands >4 kV HBM per MIL-STD-750 method 1020-reduces handling sensitivity during SMT assembly |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Provides precise 24 V reference for optocoupler-based feedback in isolated DC-DC converters. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing stable error amplifier input threshold. Use Value: ±5% VZ tolerance and 62 Ω ZZT ensure <±1% output voltage drift over line/load variations. | Use Scenario: Supplies excitation voltage to 4–20 mA current-loop pressure transducers in factory automation systems. IC Role / Device Role / Timing Role: Precision voltage reference source for ratiometric sensor excitation. Use Value: 0.1 µA leakage and –65°C to +175°C operating range enable stable calibration across harsh environmental conditions. |
| Overvoltage Protection Clamp | Programmable Logic Controller Input Conditioning |
Use Scenario: Clamps transient surges on 24 V control bus lines to protect downstream logic inputs. IC Role / Device Role / Timing Role: Fast-acting shunt protection element absorbing energy above 24 V threshold. Use Value: Low 2 pF capacitance prevents signal integrity degradation on 100 kHz digital control lines. | Use Scenario: Regulates and stabilizes 24 V supply rail feeding discrete input optoisolators in PLC backplanes. IC Role / Device Role / Timing Role: Local voltage regulator ensuring consistent LED forward current in input stage optocouplers. Use Value: 500 mW rating and 300°C/W RθJA allow sustained operation under continuous 24 V bus loading without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6009UR-1 | Same electrical specs but in bulk packaging (no tape/reel); lacks TR suffix | Not suitable for automated pick-and-place; requires manual placement or tube-to-reel conversion | Select 1N6009UR-1/TR for SMT production lines requiring EIA-481-B compliant 12 mm tape feed |
| BZX55-C24 | Pro Electron equivalent; same 24 V ±5%, but DO-35 axial package and higher ZZT (100 Ω) | Requires through-hole assembly; less suitable for high-density PCBs or reflow processes | Choose BZX55-C24 only when legacy axial design or lower-cost procurement overrides SMT compatibility needs |
Compared with 1N6009UR-1/TR, the bulk-packaged 1N6009UR-1 sacrifices SMT automation support for lower unit cost, while BZX55-C24 trades surface-mount capability and tighter dynamic impedance for broader distributor availability and Pro Electron compliance.
Availability
1N6009UR-1/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, overvoltage clamping circuits, and programmable logic controller input conditioning requiring stable component supply and full traceability.
Supply support for 1N6009UR-1/TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, RF, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N6009UR-1/TR belongs to Microsemi's legacy 1N5985BUR–1N6031BUR Zener series, designed specifically for surface-mount voltage regulation in mission-critical power and sensing applications where hermetic sealing, wide temperature operation, and low leakage are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N6009UR-1/TR?
The 1N6009UR-1/TR has a nominal Zener voltage of 24 V with a ±5% tolerance, meaning its actual breakdown voltage falls between 22.8 V and 25.2 V when tested at IZT = 5 mA and 30°C lead temperature. This tolerance is specified per the "B" suffix in the part nomenclature and applies across the full operating temperature range.
Does the 1N6009UR-1/TR support lead-free reflow soldering?
Yes, the 1N6009UR-1/TR is RoHS compliant with matte-tin plating and qualified for lead-free reflow soldering at 260°C for 10 seconds per MIL-STD-750 method 2026. Its DO-213AA glass package withstands thermal shock without cracking, making it compatible with standard J-STD-020-compliant reflow profiles.
What is the maximum reverse leakage current for the 1N6009UR-1/TR?
The 1N6009UR-1/TR exhibits a maximum reverse leakage current of 0.1 µA at VR = 18 V (75% of nominal VZ). This low leakage ensures minimal error contribution in high-impedance voltage divider networks and maintains accuracy in precision reference applications over temperature.
How does the thermal resistance of the 1N6009UR-1/TR affect its power handling?
The 1N6009UR-1/TR has a junction-to-ambient thermal resistance (RθJA) of 300°C/W when mounted on FR4 with 1 oz copper per Microsemi's recommended footprint. At 25°C ambient, this allows full 500 mW dissipation; above 25°C, power must be linearly derated-e.g., only 350 mW at 75°C ambient-to keep junction temperature ≤175°C.
Is the 1N6009UR-1/TR suitable for high-frequency applications?
Yes, the 1N6009UR-1/TR has typical capacitance below 2 pF, enabling use in high-frequency voltage regulation and noise-sensitive analog circuits. Its low capacitance minimizes signal coupling and phase shift, making it appropriate for feedback paths in switching regulators operating up to several hundred kHz.
1N6009UR-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 24 V
- Tolerance:
- -
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N6009UR-1/TR FAQ
1.How can I place an order for 1N6009UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6009UR-1/TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 1N6009UR-1/TR reliable?
The price and inventory of 1N6009UR-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6009UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N6009UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6009UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6009UR-1/TR?
1N6009UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6009UR-1/TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 1N6009UR-1/TR?
For technical support, including 1N6009UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6009UR-1/TR requirements.
6.How does Aetrix verify that 1N6009UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N6009UR-1/TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1N6009UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N6009UR-1/TR?
All 1N6009UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6009UR-1/TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 1N6009UR-1/TR part is unused and in its original packaging.
Return procedure for 1N6009UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6009UR-1/TR Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
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