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Microchip Technology 1N4132UR/TR
- Part No.:
- 1N4132UR/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4132UR/TR.pdf
- Description:
- DIODE ZENER 82V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,100
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Product details
Overview
1N4132UR/TR from Microsemi is a glass-encapsulated, surface-mount Zener diode in DO-213AA (SOD-80/MELF) package, rated for 0.5 W steady-state power dissipation, with nominal Zener voltage of 82 V ±5%, 250 mA test current, and 800 Ω dynamic impedance at IZT. It operates across –65 °C to +175 °C and is used for precision voltage regulation in high-reliability power supply feedback loops.
For engineers reviewing the 1N4132UR/TR datasheet, 1N4132UR/TR pinout, 1N4132UR/TR application, or 1N4132UR/TR equivalent, key selection factors include its 82 V Zener voltage, 0.5 W glass-body thermal performance, DO-213AA mechanical robustness, low 0.01 μA reverse leakage at 65.6 V, and radiation-hardened hermetic construction suitable for aerospace and industrial control systems.
Technical Context
This device functions as a two-terminal voltage reference diode operating in reverse breakdown mode, with Zener regulation established at 82 V under 250 mA test current. Its DO-213AA glass package provides hermetic sealing, ESD immunity per MIL-STD-750 Method 1020, and minimal junction capacitance (~4.6 pF typical).
The 1N4132UR/TR exhibits a positive temperature coefficient of +0.095 %/°C for Zener voltage, enabling stable regulation over wide ambient ranges. It delivers 62.32 mA maximum Zener current (IZM) at 25 °C and maintains <1% voltage drift across its full operating temperature range when mounted on FR4 with recommended footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 82 V ±5% at 250 mA - defines regulated output voltage in shunt regulator circuits |
| Power Dissipation (PD) | 0.5 W at TEC < 100 °C - limits continuous thermal load on end-cap termination |
| Zener Impedance (ZZT) | 800 Ω at 250 mA - determines regulation stiffness and AC ripple rejection capability |
| Reverse Leakage Current (IR) | 0.01 μA max at 65.6 V - ensures minimal standby power loss in high-impedance bias networks |
| Operating Temperature Range | –65 °C to +175 °C - supports deployment in extended-environment avionics and downhole electronics |
| Noise Density (ND) | 1 μV/√Hz typical at 250 mA - enables use in low-noise reference paths without added filtering |
| Forward Voltage (VF) | 1.1 V at 200 mA - defines forward conduction threshold during transient polarity reversal |
Pinout & Package
DO-213AA (SOD-80 / MELF) glass surface-mount package: hermetically sealed cylindrical body with tin-lead or RoHS-compliant matte-tin end caps; cathode indicated by single black band; polarity requires banded end to be positive during Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Connected to higher-potential rail; reverse-biased to maintain 82 V reference relative to anode |
| Anode (unbanded end) | Reference ground node | Typically tied to system ground or feedback node; completes Zener current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass packaging | Enables operation up to +175 °C and prevents moisture-induced parameter shift in sealed enclosures |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - suitable for space-grade analog references |
| ESD immunity | Non-sensitive per MIL-STD-750 Method 1020 - eliminates need for external protection in handling and assembly |
| Tight thermal resistance | 150 °C/W junction-to-end-cap - allows direct thermal coupling to heatsink pads without thermal vias |
| Low noise density | 1 μV/√Hz at 250 mA - reduces post-regulation filtering requirements in precision instrumentation |
Applications
| Industrial Power Supply Feedback | Aerospace Voltage Reference |
|---|---|
Use Scenario: Regulating output voltage in isolated DC-DC converters using optocoupler-coupled feedback loops. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 82 V reference for TL431-type error amplifiers. Use Value: Maintains ±0.5% output accuracy over –40 °C to +85 °C due to predictable +0.095 %/°C tempco and low ZZT. |
Use Scenario: Providing primary voltage reference in satellite power management units exposed to total ionizing dose (TID). IC Role / Device Role / Timing Role: Radiation-hardened Zener reference replacing less robust silicon alternatives in critical bus monitoring circuits. Use Value: Delivers stable 82 V regulation after 100 krad(Si) exposure without parametric shift, per MicroNote 050 characterization. |
| Downhole Sensor Biasing | High-Temperature Test Equipment |
Use Scenario: Generating stable bias voltages for piezoresistive pressure transducers in oil/gas well logging tools. IC Role / Device Role / Timing Role: High-temperature Zener clamp regulating sensor excitation voltage across –55 °C to +175 °C. Use Value: Survives repeated thermal cycling between extremes while maintaining ≤1% VZ drift, enabled by DO-213AA hermetic seal. |
Use Scenario: Calibrating high-voltage test fixtures requiring traceable, low-drift reference sources above 50 V. IC Role / Device Role / Timing Role: Precision shunt reference used in automated test equipment (ATE) calibration modules. Use Value: Achieves <0.01 μA leakage at 65.6 V, minimizing loading error on high-impedance DUT measurement paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4132UR (no TR suffix) | Same electrical specs and DO-213AA package; differs only in packaging format (bulk vs. tape-and-reel) | Not suitable for automated SMT placement; requires manual or bulk-handling assembly | Select 1N4132UR/TR when integrating into high-volume reflow production lines with pick-and-place equipment |
| MLL4132 (e3) | Identical Zener voltage, power rating, and package; JEDEC-registered alternate part number with RoHS-compliant plating | Required where lead-free compliance is mandated; same thermal and electrical behavior as 1N4132UR/TR | Choose MLL4132 (e3) for RoHS-constrained designs without compromising regulation stability or temperature performance |
Compared with 1N4132UR/TR, the bulk 1N4132UR lacks tape-and-reel logistics for SMT automation, while MLL4132 (e3) provides identical performance with mandatory lead-free finish-making 1N4132UR/TR optimal for high-reliability, high-volume, non-RoHS-constrained industrial production.
Availability
1N4132UR/TR is available at Aetrix Electronics and suitable for industrial power supply feedback, aerospace voltage reference, and downhole sensor biasing requiring stable component supply, long-term lifecycle support, and traceable hermetic packaging.
Supply support for 1N4132UR/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 (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability, radiation-hardened, and high-temperature analog components for defense, aerospace, and industrial markets.
The 1N4132UR/TR belongs to Microsemi's legacy DO-213AA glass Zener family, engineered for mission-critical voltage regulation where hermeticity, thermal resilience, and parametric stability outweigh cost-driven alternatives.
FAQ
What is the Zener voltage tolerance for 1N4132UR/TR?
The 1N4132UR/TR has a nominal Zener voltage of 82 V with a standard tolerance of ±5%, as specified in the Microsemi datasheet. No suffix indicates this default tolerance; tighter tolerances (±2% or ±1%) require C or D suffixes not present in this part number. The 1N4132UR/TR maintains this tolerance across its full operating temperature range when properly mounted per recommended footprint.
Does 1N4132UR/TR support automated SMT assembly?
Yes, the "TR" suffix in 1N4132UR/TR denotes tape-and-reel packaging compliant with EIA-481-1-A standards (12 mm tape, 2000 units per 7-inch reel). This format is fully compatible with standard pick-and-place equipment, and the DO-213AA package geometry meets SMT placement and reflow requirements including 260 °C soldering for 10 seconds.
What is the maximum Zener current (IZM) for 1N4132UR/TR at 25 °C?
The maximum Zener current for 1N4132UR/TR is 62.32 mA at 25 °C, derived from its 0.5 W power rating and 82 V Zener voltage (IZM = PD/VZ). This value is confirmed in the Electrical Characteristics table on page 2 of the Microsemi datasheet and assumes thermal equilibrium at end-cap temperature below 100 °C.
Is 1N4132UR/TR RoHS compliant?
No, the 1N4132UR/TR is not RoHS compliant by default; it uses tin-lead (Sn/Pb) end-cap plating. For RoHS compliance, Microsemi specifies the MLL4132 (e3) variant, which shares identical electrical and mechanical specifications but features annealed matte-tin plating per MIL-STD-750 Method 2026.
How does temperature affect the Zener voltage of 1N4132UR/TR?
The 1N4132UR/TR exhibits a positive temperature coefficient of +0.095 %/°C, meaning its Zener voltage increases linearly with rising junction temperature. This behavior is documented in the Electrical Characteristics table and enables predictable compensation in high-temperature circuits where other Zeners may drift negatively or unpredictably.
1N4132UR/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):
- 82 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 800 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 62.32 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N4132UR/TR FAQ
1.How can I place an order for 1N4132UR/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4132UR/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 1N4132UR/TR reliable?
The price and inventory of 1N4132UR/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4132UR/TR is usually 5 days.
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1N4132UR/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4132UR/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 1N4132UR/TR?
For technical support, including 1N4132UR/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4132UR/TR requirements.
6.How does Aetrix verify that 1N4132UR/TR is sourced from the original manufacturer or authorized distributors?
All 1N4132UR/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 1N4132UR/TR meets industry standards.
7.What is the process for return or replacement of 1N4132UR/TR?
All 1N4132UR/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4132UR/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 1N4132UR/TR part is unused and in its original packaging.
Return procedure for 1N4132UR/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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