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Microchip Technology 1N3016BUR-1
- Part No.:
- 1N3016BUR-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AB, MELF
- Datasheet:
-
1N3016BUR-1.pdf
- Description:
- DIODE ZENER 6.8V 1W DO213AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,426
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Product details
Overview
1N3016BUR-1 from Microsemi is a surface-mount glass-encapsulated Zener diode in DO-213AB (MELF) package, rated for 1.5 W power dissipation at 25°C, with nominal Zener voltage 6.8 V ±5% at 37 mA test current, 3.5 Ω dynamic impedance, and reverse leakage ≤5 μA at 5.2 V. It serves as a precision voltage reference or shunt regulator in high-reliability power supply feedback loops.
For engineers reviewing the 1N3016BUR-1 datasheet, 1N3016BUR-1 pinout, 1N3016BUR-1 application, or 1N3016BUR-1 equivalent, key selection criteria include its hermetic glass MELF construction, -65°C to +175°C operating temperature range, low thermal resistance (40°C/W junction-to-end-cap), tight voltage tolerance, and radiation-hardened capability per MicroNote 050.
Technical Context
This Zener diode operates in reverse breakdown mode with a sharp knee and stable regulation across 1 mA to 210 mA DC current range. Its metallurgically enhanced contact design ensures low thermal resistance and repeatable voltage characteristics under thermal cycling.
The device exhibits a positive temperature coefficient of +0.040%/°C for its 6.8 V nominal Zener voltage and specified capacitance per Figure 2 - critical for noise-sensitive analog references and high-frequency bypass applications where parasitic capacitance must be bounded.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.8 V ±5% at 37 mA - defines precise regulation point for feedback networks requiring stable reference under load variation. |
| Power Dissipation | 1.5 W at 25°C end-cap temperature - supports robust operation in compact, thermally constrained PCB layouts. |
| Zener Impedance | 3.5 Ω at IZT - ensures minimal output voltage shift under dynamic current changes in regulation circuits. |
| Reverse Leakage Current | ≤5 μA at VR = 5.2 V - guarantees low quiescent error in high-impedance reference paths. |
| Operating Temperature | -65°C to +175°C - enables deployment in aerospace, downhole, and military environments without derating penalties. |
| Thermal Resistance | 40°C/W junction-to-end-cap - allows direct thermal coupling to heatsinking pads or metal-core substrates. |
| Package Outline | DO-213AB (MELF glass) - provides hermetic sealing, low parasitic inductance, and compatibility with automated SMT placement. |
Pinout & Package
DO-213AB (MELF) glass package: cylindrical, leadless, hermetically sealed, cathode band marked on one end. Dimensions: A = 2.39–2.66 mm (diameter), B = 4.80–5.20 mm (length), C = 0.41–0.55 mm (band width). Cathode band indicates polarity; device regulates with banded end positive relative to opposite end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode of reverse-biased Zener | Connected to regulated voltage node; polarity must be observed to avoid forward conduction and regulation failure. |
| Anode (unbanded end) | Cathode of reverse-biased Zener | Typically tied to ground or lower potential; forms shunt path for excess current during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Eliminates moisture ingress and long-term parameter drift - essential for 20+ year field reliability in sealed systems. |
| Metallurgically enhanced contact | Reduces interfacial thermal resistance by >30% vs. standard alloying - improves power handling and transient thermal response. |
| Radiation hardness | Inherently qualified per MicroNote 050 - suitable for space-grade and nuclear instrumentation without additional screening. |
| RoHS-compliant e3 suffix | Tin-plated terminals meet MIL-STD-750 Method 2026 - ensures solderability and intermetallic stability in lead-free reflow profiles. |
| Low ESD sensitivity | No special handling required - simplifies manufacturing and reduces assembly yield loss in uncontrolled environments. |
Applications
| Switch-Mode Power Supply Feedback | High-Temperature Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters using optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 6.8 V threshold to TL431 or similar error amplifier. Use Value: Tight ±5% tolerance and low 3.5 Ω impedance minimize output voltage drift across line/load/temperature - meeting <±1% regulation spec. |
Use Scenario: Biasing and level-shifting analog front-end circuitry in oil-well logging tools operating at 175°C ambient. IC Role / Device Role / Timing Role: Precision voltage clamp protecting ADC input stages from overvoltage transients in harsh downhole environments. Use Value: Guaranteed operation up to +175°C and hermetic glass seal prevent parameter shift or failure under thermal stress and corrosive gas exposure. |
| Aerospace Avionics Reference | Radiation-Hardened Instrumentation |
Use Scenario: Generating stable reference for analog-to-digital conversion in flight control computers. IC Role / Device Role / Timing Role: Primary Zener reference in dual-redundant voltage monitoring subsystems requiring MIL-PRF-19500 qualification. Use Value: MQ/MX-prefix variants available for JAN/JANTXV screening - meets DO-254 traceability and burn-in requirements for safety-critical avionics. |
Use Scenario: Voltage stabilization in satellite telemetry modules exposed to total ionizing dose (TID) >100 krad(Si). IC Role / Device Role / Timing Role: Radiation-tolerant shunt regulator maintaining bias points in CMOS sensor interfaces during orbital radiation events. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or derating - reducing mass and complexity in payload design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N3016B (DO-13 axial) | Same electrical specs but DO-13 through-hole package; no surface-mount capability; higher parasitic inductance. | Used only where board real estate permits axial leads and manual assembly is acceptable. | Select 1N3016BUR-1 when SMT automation, high-density layout, or low-inductance performance is required. |
| MMBZ5225B (SOT-23) | Lower power rating (0.35 W), smaller package, ±5% tolerance, but silicon plastic construction lacks hermeticity and radiation hardness. | Suitable for commercial-grade consumer electronics, not aerospace, military, or high-reliability industrial use. | Choose 1N3016BUR-1 where extended temperature range, hermetic sealing, or radiation tolerance is mandatory. |
Compared with 1N3016B and MMBZ5225B, the 1N3016BUR-1 uniquely combines surface-mount MELF packaging, 1.5 W power handling, hermetic glass construction, and inherent radiation hardness - making it irreplaceable in mission-critical analog regulation where reliability outweighs cost or footprint.
Availability
1N3016BUR-1 is available at Aetrix Electronics and suitable for aerospace power management, downhole instrumentation, and radiation-hardened telemetry systems requiring stable component supply across extended product lifecycles.
Supply support for 1N3016BUR-1 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 (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability, radiation-hardened, and high-voltage analog components for defense, aerospace, and industrial markets.
The 1N3016BUR-1 belongs to Microsemi's legacy high-power glass Zener diode family, engineered specifically for applications demanding hermetic sealing, extreme temperature resilience, and intrinsic radiation tolerance without external hardening.
FAQ
What is the Zener voltage tolerance for 1N3016BUR-1?
The 1N3016BUR-1 has a nominal Zener voltage of 6.8 V with a tolerance of ±5%, indicated by the "B" suffix in its part number. This tolerance is verified at 37 mA test current and 25°C ambient, and remains stable across its full operating temperature range due to its metallurgically enhanced construction.
Is 1N3016BUR-1 RoHS compliant?
Yes, the "e3" suffix in 1N3016BUR-1 denotes RoHS compliance with annealed matte-tin plating, solderable per MIL-STD-750 Method 2026. The device meets lead-free reflow requirements up to 260°C for 10 seconds and contains no restricted substances per EU Directive 2011/65/EU.
Can 1N3016BUR-1 replace 1N3016B in existing designs?
1N3016BUR-1 is not a drop-in replacement for 1N3016B due to different packages: DO-213AB (MELF) vs. DO-13 (axial). While electrical parameters match, PCB layout, thermal pad design, and assembly process must be revised. Use only after validating mechanical fit and thermal performance on FR4 with recommended footprint.
What is the maximum steady-state power dissipation for 1N3016BUR-1 on FR4?
When mounted on FR4 with 1 oz copper and Microsemi's recommended footprint, the 1N3016BUR-1 delivers 1.25 W at 25°C ambient (TA), derating linearly above 25°C per Figure 1. At end-cap temperature (TEC) < 115°C, it sustains 1.5 W - requiring direct thermal coupling to a heatsink or metal substrate for full rating.
Does 1N3016BUR-1 require special ESD handling?
No - the 1N3016BUR-1 is nonsensitive to ESD per manufacturer specification. Its hermetic glass construction and metallurgical design eliminate gate oxide or junction vulnerability, allowing standard handling without wrist straps or static-safe packaging in production environments.
1N3016BUR-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AB, MELF
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 3.5 Ohms
- Current - Reverse Leakage @ Vr:
- 150 µA @ 5.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AB
1N3016BUR-1 FAQ
1.How can I place an order for 1N3016BUR-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N3016BUR-1 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 1N3016BUR-1 reliable?
The price and inventory of 1N3016BUR-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N3016BUR-1 is usually 5 days.
3.What payment methods are accepted for 1N3016BUR-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N3016BUR-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N3016BUR-1?
1N3016BUR-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N3016BUR-1 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 1N3016BUR-1?
For technical support, including 1N3016BUR-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N3016BUR-1 requirements.
6.How does Aetrix verify that 1N3016BUR-1 is sourced from the original manufacturer or authorized distributors?
All 1N3016BUR-1 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 1N3016BUR-1 meets industry standards.
7.What is the process for return or replacement of 1N3016BUR-1?
All 1N3016BUR-1 units undergo pre-shipment inspection (PSI). If there is an issue with 1N3016BUR-1, 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 1N3016BUR-1 part is unused and in its original packaging.
Return procedure for 1N3016BUR-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N3016BUR-1 Tags
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