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Microchip Technology 1N936BUR-1/TR
- Part No.:
- 1N936BUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
1N936BUR-1/TR.pdf
- Description:
- TEMPERATURE COMPENSATED
- Quantity:
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Inventory:115
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Product details
Overview
1N936BUR-1/TR from Microsemi is a temperature-compensated 9.0 V Zener reference diode in DO-35 (DO-204AH) glass axial-leaded package, rated for 500 mW power dissipation at 25 °C, 7.5 mA test current, and ±0.005 %/°C temperature coefficient. It delivers stable voltage reference performance in precision instrumentation, military-grade analog circuits, and industrial control systems requiring minimal drift over -55 °C to +150 °C.
For engineers reviewing the 1N936BUR-1/TR datasheet, 1N936BUR-1/TR pinout, 1N936BUR-1/TR application, or 1N936BUR-1/TR equivalent, key selection criteria include its MIL-PRF-19500/156 JANTXV qualification, RoHS-compliant tape-and-reel packaging (TR suffix), low dynamic impedance (≤20 Ω), and guaranteed ∆VZT ≤ 70 mV across full temperature range.
Technical Context
This device operates as a two-terminal voltage reference with cathode-positive biasing, using internal metallurgical bonding and double-plug construction to achieve tight thermal stability. Its Zener breakdown is engineered for minimal voltage drift at IZ = 7.5 mA, where power dissipation remains below 50 mW even at elevated ambient temperatures.
The 1N936BUR-1/TR is specified for operation across -55 °C to +150 °C, with derating starting above 25 °C at 3.33 mW/°C. Its effective temperature coefficient of ±0.005 %/°C is validated under JEDEC-standard test conditions and applies specifically to the B-suffix variant with extended temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 8.55–9.45 V at 7.5 mA - ensures 9.0 V nominal reference with ±5% tolerance for precision analog calibration. |
| Temperature Coefficient | ±0.005 %/°C - guarantees <0.05 mV/°C drift over full -55 °C to +150 °C range for high-stability references. |
| Zener Impedance | ≤20 Ω at 7.5 mA - maintains low AC output impedance critical for noise-sensitive feedback and regulation loops. |
| Max Zener Current | 50 mA - defines absolute safe operating limit; recommended 7.5 mA operation avoids thermal runaway and optimizes TC. |
| Power Dissipation | 500 mW at 25 °C - supports continuous operation in compact enclosures with adequate lead thermal path (TL ≤ 50 °C). |
| ∆VZT Max | 70 mV - maximum total voltage deviation observed across full temperature range, enabling predictable error budgeting. |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed glass axial-leaded package with tin-lead or RoHS-compliant matte-tin plating over copper-clad steel leads. Cathode identified by black band; device must be biased with banded end positive.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground terminal | Connected to circuit common; reverse-biased operation requires this node at lower potential than cathode. |
| Cathode | Reference output terminal | Marked with black band; supplies stable 9.0 V reference when biased positively relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered 1N936 series | Ensures cross-manufacturer compatibility and standardized test methodology per JEDEC 5A. |
| JANTXV qualification | Validated to MIL-PRF-19500/156 for high-reliability aerospace and defense applications with full screening. |
| Double plug construction | Reduces thermal gradients across junction, improving long-term voltage stability and TC repeatability. |
| RoHS-compliant TR packaging | Tape-and-reel delivery (EIA-296 standard) enables automated SMT placement despite axial-leaded form factor. |
Applications
| High-Precision ADC Reference | Military Power Supply Calibration |
|---|---|
Use Scenario: Providing reference voltage for 16-bit analog-to-digital converters in data acquisition systems. IC Role / Device Role / Timing Role: Two-terminal shunt reference establishing precise 9.0 V基准 for ADC internal scaling and external sensor signal conditioning. Use Value: ±0.005 %/°C TC and ≤70 mV ∆VZT ensure <0.01 LSB drift over industrial temperature range, preserving measurement accuracy. | Use Scenario: Calibrating output voltage of regulated DC-DC converters in airborne avionics power modules. IC Role / Device Role / Timing Role: Primary voltage reference in closed-loop feedback networks of MIL-STD-704 compliant power supplies. Use Value: JANTXV qualification and -55 °C to +150 °C operation guarantee reliability under shock, vibration, and extreme thermal cycling. |
| Industrial Sensor Signal Conditioning | Test Equipment Voltage Standard |
Use Scenario: Biasing bridge sensors and setting gain in programmable-gain instrumentation amplifiers. IC Role / Device Role / Timing Role: Stable excitation source and offset reference for ratiometric sensor interfaces in PLC analog input modules. Use Value: Low 20 Ω dynamic impedance minimizes interaction with op-amp input stages, maintaining linearity across 4–20 mA loop bandwidth. | Use Scenario: Serving as traceable voltage standard in benchtop multimeters and calibration sources. IC Role / Device Role / Timing Role: Primary shunt reference in metrology-grade voltage dividers and null detectors. Use Value: Hermetic DO-35 glass package and metallurgical bond ensure <5 ppm/year long-term drift, meeting ANSI/NCSL Z540 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N936B-1 | No TR tape-and-reel packaging; commercial-grade lead finish only; same electrical specs and JANTXV qualification. | Requires manual loading or bulk feed; unsuitable for high-volume automated assembly. | Select 1N936B-1 only for prototyping or low-volume hand-soldered builds where reel packaging is unnecessary. |
| SMJ1N936B-1 | Same electrical specs but qualified to SMD-5962-99519 (space-level); higher screening, tighter lot traceability, and extended burn-in. | Approved for satellite power regulation and radiation-hardened systems; not required for terrestrial military use. | Choose SMJ1N936B-1 only when DoD space program compliance (MIL-PRF-19500/156 Class S) is mandated. |
Compared with 1N936B-1 and SMJ1N936B-1, the 1N936BUR-1/TR uniquely combines JANTXV reliability, RoHS-compliant reel packaging, and DO-35 mechanical compatibility-enabling drop-in replacement in legacy designs while supporting modern automated production.
Availability
1N936BUR-1/TR is available at Aetrix Electronics and suitable for precision instrumentation, aerospace power calibration, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 1N936BUR-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) designs high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The 1N936BUR-1/TR belongs to Microsemi's legacy MIL-qualified Zener reference diode family, engineered specifically for applications demanding ultra-low temperature drift, hermetic reliability, and compliance with MIL-PRF-19500/156.
FAQ
What is the Zener voltage tolerance of the 1N936BUR-1/TR?
The 1N936BUR-1/TR has a Zener voltage specification of 8.55 V to 9.45 V at 7.5 mA test current, corresponding to a ±5% tolerance around the nominal 9.0 V reference. This tolerance is guaranteed across the full -55 °C to +150 °C operating range and is verified per MIL-PRF-19500/156 test procedures for JANTXV-qualified devices.
Is the 1N936BUR-1/TR RoHS compliant?
Yes, the 1N936BUR-1/TR is RoHS compliant, as indicated by the "e3" suffix in its full nomenclature and confirmed in Microsemi's T4-LDS-0155 datasheet. RoHS compliance applies to the commercial-grade version and covers lead-free annealed matte-tin plating on copper-clad steel leads, meeting EU Directive 2011/65/EU requirements.
What does the "TR" suffix mean in 1N936BUR-1/TR?
"TR" denotes tape-and-reel packaging per EIA-296 standard, enabling automated surface-mount placement despite the axial-leaded DO-35 form factor. The 1N936BUR-1/TR is supplied in reels for high-volume manufacturing, with consistent orientation and spacing optimized for pick-and-place equipment used in industrial and defense electronics assembly lines.
How does the temperature coefficient of the 1N936BUR-1/TR compare to other variants in the 1N936 series?
The 1N936BUR-1/TR exhibits ±0.005 %/°C effective temperature coefficient, matching the 1N936B-1 variant and distinct from the non-B-suffix 1N936-1 (±0.055 %/°C) and 1N936A-1 (±0.005 %/°C but limited to -55 °C to +100 °C). This low TC is achieved only in B-suffix parts with extended -55 °C to +150 °C rating and verified under JEDEC-standard test conditions.
Can the 1N936BUR-1/TR replace the 1N936B-1 in existing designs?
Yes, the 1N936BUR-1/TR is a direct functional and mechanical replacement for the 1N936B-1, sharing identical electrical specifications, DO-35 package dimensions, and JANTXV qualification. The only difference is the TR tape-and-reel packaging, which adds no electrical or thermal impact-making it suitable for drop-in substitution in both new and legacy designs requiring automated assembly.
1N936BUR-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
1N936BUR-1/TR FAQ
1.How can I place an order for 1N936BUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N936BUR-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 1N936BUR-1/TR reliable?
The price and inventory of 1N936BUR-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 1N936BUR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N936BUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N936BUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N936BUR-1/TR?
1N936BUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N936BUR-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 1N936BUR-1/TR?
For technical support, including 1N936BUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N936BUR-1/TR requirements.
6.How does Aetrix verify that 1N936BUR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N936BUR-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 1N936BUR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N936BUR-1/TR?
All 1N936BUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N936BUR-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 1N936BUR-1/TR part is unused and in its original packaging.
Return procedure for 1N936BUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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