My Inquiry
My Account
Microchip Technology 1N5276BE3
- Part No.:
- 1N5276BE3
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N5276BE3.pdf
- Description:
- DIODE ZENER 150V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,491
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5276BE3 from Microsemi is a 150 V, ±5% tolerance, 500 mW glass axial-lead Zener diode in DO-35 (DO-204AH) package, rated for operation from −65 °C to +175 °C, with 108 V minimum Zener voltage at 0.85 mA test current and 5000 Ω maximum dynamic impedance at 0.25 mA, used for precision voltage reference and overvoltage protection in high-reliability power supply circuits.
For engineers reviewing the 1N5276BE3 datasheet, 1N5276BE3 pinout, 1N5276BE3 application, or 1N5276BE3 equivalent, key selection criteria include Zener voltage stability across temperature, low leakage at rated reverse voltage, thermal resistance in axial-lead mounting configurations, and RoHS-compliant matte-tin plating compatibility with lead-free reflow profiles.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown when cathode voltage exceeds anode by ≥150 V nominal, with regulation maintained over 0.85 mA to 10 mA operating current range. Its DO-35 glass package provides hermetic sealing and inherent radiation hardness per MicroNote 050.
Temperature coefficient is +0.110 %/°C (measured from 25 °C to 125 °C at rated IZT), and forward voltage is ≤1.5 V at 200 mA. Reverse leakage is limited to 10 μA at 120 V, ensuring stable biasing in high-impedance reference networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 150 V ±5% at 0.85 mA - defines primary regulation point with guaranteed limits on all six electrical parameters |
| Power Dissipation | 500 mW at 25 °C - derates linearly to zero at 175 °C junction temperature with 250 °C/W thermal resistance (junction-to-lead) |
| Zener Impedance | 5000 Ω max at IZK = 0.25 mA - indicates steep knee and stable regulation under low-current bias conditions |
| Reverse Leakage | 10 μA max at 120 V - ensures minimal error current in high-impedance voltage divider or reference leg designs |
| Operating Temperature | −65 °C to +175 °C - supports aerospace, downhole, and military applications requiring extended thermal range |
| Package | DO-35 (DO-204AH) glass axial-leaded - hermetically sealed, ESD-nonsensitive, RoHS-compliant matte-tin finish |
Pinout & Package
DO-35 (DO-204AH) glass axial-leaded package with cathode indicated by color band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026. Mounting requires ≥10 mm (3/8″) lead length from body for rated thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener breakdown reference node | Connected to lower-potential side of circuit; reverse-biased operation requires this terminal to be at lower voltage than cathode |
| Cathode | Zener regulation output / breakdown voltage reference node | Banded end; must be held at higher potential than anode to enter regulation; serves as stable 150 V reference source |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered 1N52xx series | Industry-standard footprint and electrical behavior enabling direct substitution in legacy designs |
| RoHS-compliant "e3" suffix | Matte-tin plating qualified for lead-free reflow up to 260 °C for 10 s, eliminating Pb-based solder compatibility concerns |
| Hermetic glass DO-35 package | Provides long-term reliability in humid or corrosive environments without conformal coating |
| Radiation-hardened construction | Inherent hardness per MicroNote 050 supports use in space-grade and nuclear instrumentation systems |
| Wide temperature operation | Guaranteed regulation from −65 °C to +175 °C enables deployment in engine control, oilfield, and avionics systems |
Applications
| High-Voltage Reference Supply | Aerospace Power Monitoring |
|---|---|
|
Use Scenario: Generating a stable 150 V reference for ADC input scaling in high-voltage DC-DC converter feedback loops. IC Role / Device Role / Timing Role: Zener diode providing precise, temperature-stable voltage reference independent of load current variation. Use Value: Maintains ±5% regulation accuracy across −65 °C to +175 °C, reducing calibration drift in flight-critical power telemetry systems. |
Use Scenario: Overvoltage clamp in satellite bus voltage monitoring circuits where transient suppression above 150 V is required. IC Role / Device Role / Timing Role: Two-terminal shunt regulator absorbing excess energy during voltage surges on 100–140 V nominal buses. Use Value: Withstands 500 mW peak dissipation and exhibits <10 μA leakage at 120 V, minimizing standby power loss in always-on monitors. |
| Downhole Instrumentation Bias | Military Grade Voltage Reference |
|
Use Scenario: Providing bias voltage for piezoelectric sensor amplifiers in oil/gas well logging tools exposed to >150 °C ambient. IC Role / Device Role / Timing Role: High-temperature-stable Zener reference maintaining regulation despite extreme thermal cycling. Use Value: Guaranteed operation to +175 °C with +0.110 %/°C tempco enables predictable offset compensation without active thermal correction. |
Use Scenario: Precision voltage reference in MIL-PRF-19500 screened analog subsystems requiring JAN/JANTXV qualification. IC Role / Device Role / Timing Role: Primary regulation element in hardened power management modules for tactical radios and radar receivers. Use Value: Available with MQ/MX prefixes for military screening; DO-35 package supports manual and wave-solder assembly in ruggedized PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5276B | No "e3" RoHS suffix; uses tin-lead plating instead of matte-tin | Not compliant with lead-free manufacturing requirements; unsuitable for new RoHS-designated programs | Select 1N5276B only for legacy repair or non-RoHS production lines where tin-lead solder is mandated |
| MMBZ5276B | Surface-mount SOT-23 package; 150 V ±5%, 225 mW power rating | Limited to low-power portable electronics; cannot replace 1N5276BE3 in high-dissipation or high-temp axial-mount designs | Choose MMBZ5276B only when board space constraints prohibit axial-leaded components and thermal load remains below 225 mW |
Compared with 1N5276B and MMBZ5276B, the 1N5276BE3 uniquely combines RoHS compliance, 500 mW dissipation, DO-35 mechanical robustness, and full military-temperature range support-making it the sole option for new high-reliability, lead-free, high-power Zener reference designs.
Availability
1N5276BE3 is available at Aetrix Electronics and suitable for high-reliability power supply reference, aerospace voltage monitoring, and downhole instrumentation applications requiring stable component supply across extended temperature and regulatory compliance requirements.
Supply support for 1N5276BE3 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 analog, RF, and radiation-hardened components for defense, aerospace, and industrial markets.
The 1N52xx series was designed as a JEDEC-standardized family of axial-leaded Zener diodes delivering precision voltage regulation across 2.4–200 V with military-grade temperature and screening options.
FAQ
What is the Zener voltage tolerance for 1N5276BE3?
The 1N5276BE3 has a nominal Zener voltage of 150 V with a guaranteed tolerance of ±5%, confirmed by the "B" suffix per JEDEC specification. This tolerance applies across the full operating temperature range and is verified at 0.85 mA test current with all six electrical parameters guaranteed.
Does 1N5276BE3 support lead-free soldering processes?
Yes, the "e3" suffix on 1N5276BE3 denotes RoHS-compliant matte-tin plating qualified for lead-free reflow soldering at 260 °C for up to 10 seconds. The device meets MIL-STD-750 Method 2026 for solderability and is compatible with standard Pb-free assembly lines.
What is the maximum reverse leakage current for 1N5276BE3?
The maximum reverse leakage current for 1N5276BE3 is 10 μA at 120 V reverse voltage, measured at 25 °C. This low leakage ensures minimal error current in high-impedance reference circuits and maintains regulation accuracy in precision analog front-ends.
Can 1N5276BE3 be used in high-temperature environments?
Yes, 1N5276BE3 is rated for continuous operation from −65 °C to +175 °C. Its DO-35 glass package and internal construction enable reliable regulation in downhole, engine bay, and avionics applications where ambient temperatures exceed 150 °C.
What is the Zener impedance of 1N5276BE3 and why does it matter?
The 1N5276BE3 has a maximum Zener impedance of 5000 Ω at 0.25 mA (IZK). This value reflects the dynamic resistance near the breakdown knee; a lower value indicates sharper regulation and better stability under varying load currents-critical for precision reference applications.
1N5276BE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bag
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 150 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1500 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 114 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N5276BE3 FAQ
1.How can I place an order for 1N5276BE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5276BE3 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 1N5276BE3 reliable?
The price and inventory of 1N5276BE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5276BE3 is usually 5 days.
3.What payment methods are accepted for 1N5276BE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5276BE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5276BE3?
1N5276BE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5276BE3 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 1N5276BE3?
For technical support, including 1N5276BE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5276BE3 requirements.
6.How does Aetrix verify that 1N5276BE3 is sourced from the original manufacturer or authorized distributors?
All 1N5276BE3 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 1N5276BE3 meets industry standards.
7.What is the process for return or replacement of 1N5276BE3?
All 1N5276BE3 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5276BE3, 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 1N5276BE3 part is unused and in its original packaging.
Return procedure for 1N5276BE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5276BE3 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
