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Microchip Technology 1N6029UR/TR
- Part No.:
- 1N6029UR/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6029UR/TR.pdf
- Description:
- DIODE ZENER 160V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,234
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Product details
Overview
1N6029UR/TR from Microsemi is a surface-mount 500 mW Zener diode with nominal Zener voltage of 160 V, ±5% tolerance (B suffix), 1.0 mA test current, and dynamic impedance of 2000 Ω at IZT; used for precision voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N6029UR/TR datasheet, 1N6029UR/TR pinout, 1N6029UR/TR application, or 1N6029UR/TR equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (300 °C/W), low leakage (<0.1 µA at 122 V), DO-213AA MELF package compatibility, and RoHS-compliant commercial-grade availability.
Technical Context
This device operates as a two-terminal voltage reference in reverse-biased breakdown mode, with regulation defined at IZT = 1.0 mA and VZ = 160 V. Its DO-213AA glass MELF package provides hermetic sealing and metallurgical bonding for stable long-term performance.
Thermal derating begins above 25 °C ambient, with full 500 mW dissipation only at TA ≤ 25 °C on FR4 board; junction temperature range spans −65 to +175 °C, supporting industrial and aerospace-qualified applications when screened.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 160 V ±5% at 1.0 mA - defines precise regulation point for high-voltage reference design |
| Power Dissipation PD | 0.5 W at 25 °C ambient - limits continuous operating current to ~3.1 mA at 160 V |
| Zener Impedance ZZT | 2000 Ω at 1.0 mA - indicates moderate regulation stiffness; suitable for non-critical references |
| Reverse Leakage IR | <0.1 µA at 122 V - ensures minimal error current in high-impedance bias networks |
| Junction Temperature Range | −65 to +175 °C - enables operation in extended industrial and military environments |
| Package Type | DO-213AA (SOD80/MLL34) MELF - glass-encapsulated, surface-mount, cathode-band marked |
| RoHS Compliance | e3 suffix available - matte-tin plating, compliant per commercial-grade requirements |
Pinout & Package
DO-213AA (SOD80/MLL34) MELF package: hermetically sealed glass cylindrical body with tin-lead or RoHS-compliant matte-tin end-cap plating; cathode indicated by single black band; polarity requires banded end to be positive during Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or lower-potential rail; forms return path for Zener current |
| Cathode (banded end) | Regulated output node | Provides stable 160 V reference when reverse-biased; must be held at higher potential than anode |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount DO-213AA package | Enables automated placement and reflow soldering; eliminates axial-leaded assembly constraints |
| Metallurgically bonded construction | Ensures mechanical robustness and long-term parameter stability under thermal cycling |
| Low capacitance (typ. <1 pF) | Minimizes signal coupling in high-frequency or RF-adjacent circuits |
| ESD-insensitive (MIL-STD-750, Method 1020) | Eliminates need for handling precautions during board assembly and testing |
| Radiation-hardened inherent structure | Validated per MicroNote 050; supports use in space-qualified and high-reliability systems |
Applications
| High-Voltage Power Supply Reference | Laser Diode Bias Control |
|---|---|
Use Scenario: Stabilizing feedback node in 150–200 V DC-DC converter output stage. IC Role / Device Role / Timing Role: Two-terminal passive voltage reference establishing precise output setpoint. Use Value: Maintains ±0.8% output regulation across load and line variations using 160 V ±5% VZ and low-tempco (+0.110 %/°C). |
Use Scenario: Providing stable bias voltage for high-power pulsed laser diode drivers. IC Role / Device Role / Timing Role: Zener clamp limiting peak anode voltage during transient turn-off events. Use Value: Prevents avalanche failure by clamping transients to 160 V with sub-µA leakage ensuring minimal quiescent power loss. |
| Industrial Sensor Excitation | Overvoltage Protection Circuit |
Use Scenario: Supplying excitation voltage to high-impedance piezoresistive pressure sensors. IC Role / Device Role / Timing Role: Precision voltage source delivering stable 160 V bias to sensor bridge. Use Value: Enables 16-bit measurement resolution via low-drift reference with <0.1 µA leakage minimizing offset error. |
Use Scenario: Protecting downstream analog front-end inputs from 200 V surge events. IC Role / Device Role / Timing Role: Crowbar element triggering shunt conduction above 160 V threshold. Use Value: Limits fault energy with fast response and 0.5 W power handling, surviving repeated 122 V transients per spec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6029UR-1 | Same electrical specs; differs only in packaging - bulk vs. tape-and-reel (TR) | No functional difference; TR version optimized for SMT production lines | Select 1N6029UR/TR for automated pick-and-place; choose 1N6029UR-1 for prototyping or low-volume hand assembly |
| BZX85C160 | Through-hole DO-35 package; same 160 V ±5%, but higher ZZT (2500 Ω) and lower PD (1.3 W) | Requires PCB through-hole footprint; less suitable for dense SMT layouts | Choose BZX85C160 only if legacy axial layout exists or higher power margin is needed beyond 0.5 W |
Compared with 1N6029UR/TR, the 1N6029UR-1 offers identical regulation performance but lacks tape-and-reel convenience for volume SMT, while BZX85C160 trades surface-mount compatibility for higher power handling and through-hole mounting - making 1N6029UR/TR optimal for space-constrained, high-reliability SMT designs requiring 160 V reference stability.
Availability
1N6029UR/TR is available at Aetrix Electronics and suitable for high-voltage reference design, laser diode bias control, and industrial sensor excitation requiring stable component supply and traceable sourcing.
Supply support for 1N6029UR/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, mixed-signal, and radiation-hardened components.
The 1N6029UR/TR belongs to Microsemi's legacy MIL-PRF-19500-qualified Zener diode family, engineered for precision voltage regulation in aerospace, defense, and industrial systems where long-term stability and environmental resilience are critical.
FAQ
What is the Zener voltage tolerance for 1N6029UR/TR?
The 1N6029UR/TR has a nominal Zener voltage of 160 V with ±5% tolerance, denoted by the "B" suffix in its part nomenclature. This means the actual measured VZ falls between 152 V and 168 V when tested at IZT = 1.0 mA and lead temperature of 30 °C, per Microsemi T4-LDS-0228-1 Rev. 1 specifications.
Is 1N6029UR/TR RoHS compliant?
Yes, the 1N6029UR/TR is available in RoHS-compliant form with matte-tin end-cap plating (e3 suffix), as confirmed in the "Part Nomenclature" section of the Microsemi datasheet. RoHS compliance applies only to commercial-grade versions; military-screened variants are not RoHS-compliant.
What is the maximum reverse leakage current for 1N6029UR/TR?
The maximum reverse leakage current for 1N6029UR/TR is 0.1 µA at VR = 122 V, as specified in the Electrical Characteristics table on page 3 of the Microsemi datasheet. This ultra-low leakage supports high-impedance reference and bias applications without introducing significant error currents.
Can 1N6029UR/TR be used in high-temperature environments?
Yes, the 1N6029UR/TR supports junction temperatures from −65 to +175 °C. Its thermal resistance junction-to-ambient is 300 °C/W on FR4 board, enabling reliable operation in extended industrial environments - provided power dissipation is derated above 25 °C ambient per Figure 1 in the datasheet.
What does the "TR" suffix mean in 1N6029UR/TR?
"TR" stands for Tape and Reel packaging per EIA-481-B standard with 12 mm carrier tape. This format enables automated SMT placement and is distinct from the bulk-packaged 1N6029UR-1 variant. The "TR" suffix does not affect electrical or thermal specifications of the 1N6029UR/TR device itself.
1N6029UR/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):
- 160 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
1N6029UR/TR FAQ
1.How can I place an order for 1N6029UR/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6029UR/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 1N6029UR/TR reliable?
The price and inventory of 1N6029UR/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6029UR/TR is usually 5 days.
3.What payment methods are accepted for 1N6029UR/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6029UR/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6029UR/TR?
1N6029UR/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6029UR/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 1N6029UR/TR?
For technical support, including 1N6029UR/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6029UR/TR requirements.
6.How does Aetrix verify that 1N6029UR/TR is sourced from the original manufacturer or authorized distributors?
All 1N6029UR/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 1N6029UR/TR meets industry standards.
7.What is the process for return or replacement of 1N6029UR/TR?
All 1N6029UR/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6029UR/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 1N6029UR/TR part is unused and in its original packaging.
Return procedure for 1N6029UR/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6029UR/TR Tags
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