Microchip Technology 1N6011UR-1/TR
- Part No.:
- 1N6011UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6011UR-1/TR.pdf
- Description:
- DIODE ZENER 30V 500MW DO213AA
- Quantity:
- Payment:

- Shipping:

Inventory:8,532
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Product details
Overview
1N6011UR-1/TR from Microsemi is a surface-mount 30 V, 5% tolerance Zener diode in DO-213AA (MLL34) MELF package, rated for 500 mW power dissipation at 25°C, with 78 mA maximum Zener current and +0.093%/°C temperature coefficient - used for precision voltage regulation in power supply feedback loops and reference circuits.
For engineers reviewing the 1N6011UR-1/TR datasheet, 1N6011UR-1/TR pinout, 1N6011UR-1/TR application, or 1N6011UR-1/TR equivalent, key selection criteria include Zener voltage tolerance (±5%), low dynamic impedance (600 Ω @ IZT), minimal reverse leakage (0.1 µA @ 23 V), RoHS-compliant matte-tin plating, and tape-and-reel packaging for automated assembly.
Technical Context
This device operates as a two-terminal voltage regulator in reverse-biased breakdown mode, with Zener voltage specified at 30 V ±5% under 5.0 mA test current (IZT). Its thermal resistance junction-to-ambient is 300°C/W on FR4 board, enabling stable regulation across -65°C to +175°C junction temperature range.
It features hermetically sealed glass construction, metallurgical bonding for reliability, and cathode identification via band marking. The DO-213AA package supports reflow soldering up to 260°C for 10 seconds, with end-cap termination compatible with MIL-STD-750 method 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 30 V ±5% at 5.0 mA - defines precise regulation point for feedback networks |
| Power Dissipation (PD) | 0.5 W at 25°C ambient - sets maximum continuous power handling on standard FR4 PCB |
| Zener Impedance (ZZT) | 600 Ω @ IZT - determines output voltage stability under varying load current |
| Reverse Leakage (IR) | 0.1 µA @ 23 V - ensures minimal quiescent current in high-impedance bias networks |
| Temp. Coefficient (αVZ) | +0.093 %/°C - quantifies voltage drift over temperature for accuracy-critical references |
| Max Zener Current (IZM) | 78 mA - derived from PD/VZ(min); limits safe operating current in regulation mode |
| Junction Temp Range | -65°C to +175°C - supports operation in extended industrial and aerospace environments |
Pinout & Package
DO-213AA (MLL34) MELF glass package: cylindrical hermetically sealed body with tin-lead or RoHS-compliant matte-tin end-cap terminations; cathode identified by single black band; weight 0.04 g; dimensions A = 1.60–1.70 mm, B = 3.30–3.70 mm, C = 0.41–0.55 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded end | Connected to lower-potential node in Zener regulation configuration |
| Cathode | Banded end | Connected to higher-potential node; Zener breakdown occurs with cathode positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount DO-213AA package | Enables high-density automated assembly without axial leads or through-hole drilling |
| Metallurgically bonded construction | Ensures long-term reliability and resistance to thermal cycling stress |
| RoHS-compliant option (e3 suffix) | Meets EU environmental compliance for commercial-grade production |
| Low capacitance design | Minimizes signal coupling in high-frequency regulation and reference applications |
| Radiation-hardened behavior | Inherent tolerance to ionizing radiation per MicroNote 050, suitable for space-qualified designs |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converter feedback path using optocoupler interface. IC Role / Device Role / Timing Role: Zener diode provides stable 30 V reference for TL431 or optocoupler LED biasing. Use Value: Tight 5% tolerance and low tempco ensure ±1.5% output regulation over temperature and line variations. | Use Scenario: Supplies precision bias voltage to bridge-based pressure transducers in factory automation systems. IC Role / Device Role / Timing Role: Functions as passive voltage reference in ratiometric analog front-end circuitry. Use Value: 0.1 µA reverse leakage prevents loading of high-impedance sensor outputs at 23 V reverse bias. |
| Programmable Logic Controller Input Protection | Aerospace DC-DC Converter Trim |
Use Scenario: Clamps transient overvoltage on 24 V digital input channels to protect FPGA I/O banks. IC Role / Device Role / Timing Role: Acts as shunt overvoltage protector during ESD or surge events. Use Value: Hermetic glass package and non-ESD-sensitive structure withstand MIL-STD-750 method 1020 testing. | Use Scenario: Sets trim point for adjustable DC-DC module output in satellite power subsystems. IC Role / Device Role / Timing Role: Provides radiation-tolerant voltage reference for DAC-controlled feedback divider. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for additional shielding or derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6011UR-1 | No TR suffix; supplied in bulk or ammo pack, not tape-and-reel | Not optimized for high-speed pick-and-place; requires manual or vibratory feeding | Select 1N6011UR-1/TR when automated SMT line integration is required |
| BZX84-C30LT1G | SOT-23 package (3-pin, but used as 2-terminal); 30 V ±5%, 300 mW rating | Lower power rating limits use in >15 mA regulation; smaller footprint but higher thermal resistance | Choose BZX84-C30LT1G only for space-constrained, low-power consumer applications |
Compared with 1N6011UR-1/TR, the bulk version lacks tape-and-reel packaging for SMT lines, while the BZX84-C30LT1G offers smaller size but sacrifices 40% power handling and thermal robustness - making 1N6011UR-1/TR optimal for industrial and aerospace 500 mW regulation needs.
Availability
1N6011UR-1/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, and aerospace DC-DC converters requiring stable component supply, consistent Zener voltage tolerance, and RoHS-compliant MELF packaging.
Supply support for 1N6011UR-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 defense, aerospace, and industrial markets.
The 1N6011UR-1/TR belongs to Microsemi's legacy DO-213AA Zener diode family, engineered for precision voltage regulation in mission-critical systems where stability, reliability, and environmental resilience are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N6011UR-1/TR?
The 1N6011UR-1/TR has a nominal Zener voltage of 30 V with a ±5% tolerance, meaning its actual breakdown voltage falls between 28.5 V and 31.5 V when tested at 5.0 mA (IZT). This tolerance is confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0228-1 Rev. 1, and applies to all devices marked with the "B" suffix in the part nomenclature.
Is the 1N6011UR-1/TR RoHS compliant?
Yes, the 1N6011UR-1/TR is RoHS compliant, indicated by the "e3" designation in its full part number (e.g., 1N6011BUR-1/TR e3). Per the datasheet, RoHS-compliant matte-tin plating is available for commercial-grade versions only, and this variant meets EU Directive 2011/65/EU requirements.
What does the "TR" suffix mean in 1N6011UR-1/TR?
The "TR" suffix denotes tape-and-reel packaging per EIA-481-B standard using 12 mm carrier tape. This format enables automated surface-mount assembly. The base part 1N6011UR-1 is identical electrically and mechanically; only packaging differs - bulk or ammo pack for the non-TR version.
What is the maximum Zener current (IZM) for the 1N6011UR-1/TR?
The maximum Zener current for the 1N6011UR-1/TR is 78 mA, calculated from its 500 mW power rating and minimum Zener voltage (28.5 V). This value is listed in the Electrical Characteristics table on page 3 and represents the highest continuous dc current the device can safely conduct in regulation mode at 25°C ambient.
Does the 1N6011UR-1/TR have a specified forward voltage?
Yes, the 1N6011UR-1/TR has a maximum forward voltage (VF) of 1.1 V at 200 mA forward current, as stated in the Maximum Ratings table on page 1. This parameter is relevant for polarity verification and ESD protection circuit analysis, though the device is intended for reverse-bias Zener operation.
1N6011UR-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):
- 30 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
1N6011UR-1/TR FAQ
1.How can I place an order for 1N6011UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6011UR-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 1N6011UR-1/TR reliable?
The price and inventory of 1N6011UR-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 1N6011UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N6011UR-1/TR?
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1N6011UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6011UR-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 1N6011UR-1/TR?
For technical support, including 1N6011UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6011UR-1/TR requirements.
6.How does Aetrix verify that 1N6011UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N6011UR-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 1N6011UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N6011UR-1/TR?
All 1N6011UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6011UR-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 1N6011UR-1/TR part is unused and in its original packaging.
Return procedure for 1N6011UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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