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Microchip Technology 1N5995UR-1/TR
- Part No.:
- 1N5995UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N5995UR-1/TR.pdf
- Description:
- DIODE ZENER 6.2V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,963
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Product details
Overview
1N5995UR-1/TR from Microsemi is a surface-mount 500 mW Zener diode with nominal Zener voltage 6.2 V, ±5% tolerance (B suffix), 10 mA test current, and dynamic impedance of 1300 Ω at IZT; used for precision voltage regulation in power supply feedback loops and reference circuits.
For engineers reviewing the 1N5995UR-1/TR datasheet, 1N5995UR-1/TR pinout, 1N5995UR-1/TR application, or 1N5995UR-1/TR equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (300 °C/W), junction temperature range (−65 to +175 °C), and DO-213AA MELF package compatibility with automated SMT assembly.
Technical Context
This device operates as a two-terminal voltage reference in reverse-bias breakdown mode, with specified regulation at IZT = 10 mA and VZ = 6.2 V. Its low leakage current (≤2.0 µA at 5.0 V) and stable temperature coefficient (+0.040 %/°C) support stable reference performance across industrial temperature ranges.
The DO-213AA glass MELF package provides hermetic sealing and metallurgical bonding for high reliability, with thermal resistance junction-to-ambient rated at 300 °C/W on FR4 board - critical for thermal management in compact power designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.2 V at 10 mA test current - defines precise regulation point for feedback networks |
| Power Dissipation | 0.5 W at 25 °C ambient - sets maximum continuous power handling before derating |
| Zener Impedance ZZT | 1300 Ω at 10 mA - determines output voltage variation under load transients |
| Reverse Leakage IR | ≤2.0 µA at 5.0 V - ensures minimal error current in high-impedance reference paths |
| Junction Temperature Range | −65 to +175 °C - enables operation in extended industrial and aerospace environments |
| Thermal Resistance RθJA | 300 °C/W - informs PCB copper area requirements for thermal compliance |
| Package | DO-213AA (SOD80/MLL34) MELF - supports high-reliability, RoHS-compliant SMT placement |
Pinout & Package
DO-213AA (SOD80/MLL34) glass MELF package: hermetically sealed cylindrical body with tin-lead or matte-tin end-cap terminations; cathode indicated by single band; polarity: banded end is cathode (positive during Zener operation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Current sink in forward bias; reference node in reverse-bias regulation | Connected to ground or lower-potential rail in shunt regulator configuration |
| Cathode (banded end) | Current source in reverse-bias Zener mode | Connected to regulated voltage node; carries full Zener current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount DO-213AA package | Enables automated high-volume SMT assembly without axial lead trimming or orientation concerns |
| ±5% Zener voltage tolerance (B suffix) | Provides tighter regulation than 10% variants while maintaining cost-effective screening |
| RoHS-compliant option (e3 suffix) | Meets environmental compliance for commercial-grade applications without lead content |
| Inherent radiation hardness | Validated per Microsemi MicroNote 050 - suitable for space-qualified or high-reliability systems |
| Non-sensitive to ESD | Qualified per MIL-STD-750, Method 1020 - eliminates need for additional ESD protection in handling |
Applications
| Switching Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Regulates output voltage in flyback or forward converter feedback loop via optocoupler-coupled TL431 replacement. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 6.2 V threshold for error amplifier comparison. Use Value: Maintains ±1% output regulation over −40 to +85 °C with <2.0 µA leakage minimizing bias error. | Use Scenario: Supplies precision bias voltage to bridge-based pressure or temperature transducers. IC Role / Device Role / Timing Role: Two-terminal passive reference establishing excitation potential independent of supply ripple. Use Value: Delivers stable 6.2 V with +0.040 %/°C TC and 1300 Ω ZZT, reducing sensor offset drift. |
| Overvoltage Protection Clamp | Programmable Threshold Detector |
Use Scenario: Clamps transient surges on 5 V logic rails using series resistor to limit peak current. IC Role / Device Role / Timing Role: Fast-acting shunt clamp activated above 6.2 V to divert excess energy. Use Value: Responds within nanoseconds with ≤2.0 µA leakage below threshold, preserving signal integrity. | Use Scenario: Sets trigger point for comparator monitoring battery voltage or supply brownout. IC Role / Device Role / Timing Role: Passive threshold element defining 6.2 V trip level for analog comparators. Use Value: Enables accurate, low-power detection with minimal quiescent current draw in always-on circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4735A | Same 6.2 V nominal, but DO-41 axial package; 1.0 W rating; higher ZZT (17 Ω typical) | Requires through-hole mounting; better suited for prototyping or high-power dissipation | Select when board layout allows axial leads and >0.5 W power margin is needed |
| BZX55C6V2 | Same 6.2 V, ±5%, but DO-35 package; 500 mW; ZZT = 10 Ω typical; non-hermetic epoxy | Limited to commercial-grade environments; no MIL-PRF-19500 screening option | Select for cost-sensitive consumer applications where radiation hardness and hermeticity are not required |
Compared with 1N5995UR-1/TR, 1N4735A offers higher power and lower impedance but requires through-hole assembly, while BZX55C6V2 provides lower impedance in a lower-cost DO-35 package but lacks hermetic sealing and military screening capability.
Availability
1N5995UR-1/TR is available at Aetrix Electronics and suitable for switching power supplies, industrial sensor interfaces, and overvoltage protection circuits requiring stable component supply with traceable sourcing and long-term lifecycle support.
Supply support for 1N5995UR-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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N5995UR-1/TR belongs to Microsemi's legacy 1N5985BUR–1N6031BUR Zener series, designed specifically for precision voltage regulation in harsh-environment applications demanding hermetic packaging and MIL-PRF-19500 screening capability.
FAQ
What is the Zener voltage tolerance for 1N5995UR-1/TR?
The 1N5995UR-1/TR has a ±5% Zener voltage tolerance, denoted by the "B" suffix in its part number. This means its actual breakdown voltage falls between 5.89 V and 6.51 V at 10 mA test current, ensuring predictable regulation in feedback and reference circuits where moderate precision is required.
Is 1N5995UR-1/TR RoHS compliant?
Yes, the 1N5995UR-1/TR is RoHS compliant when ordered with the "e3" suffix (e.g., 1N5995BUR-1/TR e3). The standard commercial version uses matte-tin plating on end caps and meets RoHS Directive 2011/65/EU requirements; non-RoHS versions use tin-lead plating and are marked without the e3 designation.
What package type does 1N5995UR-1/TR use?
The 1N5995UR-1/TR uses the DO-213AA (also known as SOD80 or MLL34) glass MELF package - a hermetically sealed, cylindrical surface-mount format with metallurgically bonded end caps. Its dimensions are 1.60–1.70 mm diameter and 3.30–3.70 mm length, optimized for automated pick-and-place and high-reliability applications.
What is the maximum Zener current IZM for 1N5995UR-1/TR?
The maximum dc Zener current IZM for 1N5995UR-1/TR is 4.0 mA at nominal 6.2 V, calculated per the datasheet formula IZM = P / VZM, where VZM = 6.51 V (6.2 V × 1.05) and P = 0.5 W. This defines the upper safe operating current limit before exceeding power rating under worst-case voltage tolerance.
Does 1N5995UR-1/TR support military-grade screening?
No - the 1N5995UR-1/TR is the commercial-grade version (no prefix). Military equivalents require prefixes like "MQ", "MX", "MV", or "CDS" (e.g., MQ1N5995BUR-1/TR) to indicate compliance with MIL-PRF-19500 screening levels. The "UR" suffix denotes surface-mount construction, but only prefixed versions undergo qualified military testing.
1N5995UR-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):
- 6.2 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
1N5995UR-1/TR FAQ
1.How can I place an order for 1N5995UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5995UR-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 1N5995UR-1/TR reliable?
The price and inventory of 1N5995UR-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 1N5995UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N5995UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5995UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5995UR-1/TR?
1N5995UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5995UR-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 1N5995UR-1/TR?
For technical support, including 1N5995UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5995UR-1/TR requirements.
6.How does Aetrix verify that 1N5995UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N5995UR-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 1N5995UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N5995UR-1/TR?
All 1N5995UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5995UR-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 1N5995UR-1/TR part is unused and in its original packaging.
Return procedure for 1N5995UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5995UR-1/TR Tags
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BZT52C5V6T-7
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BZX84C3V3LT1G
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MM5Z5V1ST1G
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