My Inquiry
My Account
Microchip Technology 1N5236BUR-1/TR
- Part No.:
- 1N5236BUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N5236BUR-1/TR.pdf
- Description:
- DIODE ZENER 7.5V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,671
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5236BUR-1/TR from Microsemi is a surface-mount 7.5 V, 5% tolerance Zener diode in DO-213AA (SOD80) MELF glass package, rated for 500 mW steady-state power dissipation, 20 mA test current, and 6.0 Ω dynamic impedance at IZT, used for precision voltage regulation in low-power analog circuits and reference supplies.
For engineers reviewing the 1N5236BUR-1/TR datasheet, 1N5236BUR-1/TR pinout, 1N5236BUR-1/TR application, or 1N5236BUR-1/TR equivalent, key selection criteria include Zener voltage tolerance (±5%), low dynamic impedance (6.0 Ω), hermetically sealed metallurgically bonded construction, RoHS-compliant commercial-grade availability, and compatibility with automated SMT assembly per EIA-481-B tape-and-reel packaging.
Technical Context
This device operates as a reverse-biased voltage reference, maintaining stable 7.5 V regulation across 1.0–20 mA operating current range with ±0.058 %/°C temperature coefficient. Its metallurgically bonded glass structure ensures hermetic sealing and radiation hardness per MicroNote 050, while minimal junction capacitance supports high-frequency stability in feedback networks.
The DO-213AA package enables reliable thermal performance (RθJA = 250 °C/W on FR4) and withstands 260 °C soldering for 10 s. It exhibits <3.0 µA reverse leakage at 5.7 V and forward voltage ≤1.1 V at 200 mA, supporting dual-role use in clamping and biasing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 7.5 V at 20 mA test current - defines nominal regulation point for reference design |
| Power Dissipation PD | 0.5 W - sets maximum continuous power handling on FR4 board with derating above 50 °C ambient |
| Zener Impedance ZZT | 6.0 Ω at IZT = 20 mA - determines output voltage variation under load transients |
| Reverse Leakage IR | ≤3.0 µA at VR = 5.7 V - ensures low quiescent current in high-impedance bias networks |
| Temp. Coefficient αVZ | +0.058 %/°C - quantifies drift magnitude over industrial temperature range (−65 to +175 °C) |
| Package | DO-213AA (SOD80/MELF) - provides hermetic seal, mechanical robustness, and standardized SMT footprint |
| RoHS Compliance | e3 suffix indicates RoHS-compliant matte-tin plating - meets commercial-grade environmental requirements |
Pinout & Package
DO-213AA (SOD80) MELF glass package with two end-cap terminals; cathode identified by single black band. Hermetically sealed, metallurgically bonded construction; tin-lead or RoHS-compliant annealed matte-tin plating per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener breakdown anode | Connected to higher potential node during regulation; polarity critical for correct operation |
| Anode (unbanded end) | Zener breakdown cathode | Connected to lower potential node (e.g., ground or common rail); completes reverse-bias path |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Enables hermetic sealing and intrinsic radiation hardness per MicroNote 050 without external shielding |
| Low dynamic impedance (6.0 Ω) | Minimizes output voltage deviation under ±5 mA load changes in precision reference circuits |
| Stable 5% voltage tolerance | Guarantees regulation within 7.13–7.88 V at 25 °C, simplifying tolerance stack-up in analog signal chains |
| MIL-PRF-19500 up-screening option | Supports extended reliability screening for aerospace/defense applications via custom part numbering |
| EIA-481-B tape-and-reel (TR) | Enables direct integration into high-volume SMT pick-and-place lines without manual handling |
Applications
| Low-Power Reference Supply | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 7.5 V bias to op-amp input stages or ADC reference inputs in battery-powered sensor nodes. IC Role / Device Role / Timing Role: Voltage reference element establishing DC operating point for analog front-end circuitry. Use Value: Maintains regulation accuracy within ±0.058 %/°C drift and ≤6.0 Ω source impedance, ensuring consistent gain and offset calibration across −40 to +85 °C. | Use Scenario: Protecting microcontroller I/O pins from transient surges exceeding 5.7 V in industrial control interfaces. IC Role / Device Role / Timing Role: Reverse-biased shunt clamp limiting voltage excursion during ESD or inductive kick events. Use Value: Activates at 7.5 V with <3.0 µA leakage below clamp threshold, minimizing standby power loss while responding within nanoseconds. |
| Current Source Bias | Temperature-Stable Oscillator Trim |
Use Scenario: Setting bias current for constant-current LED drivers or transistor amplifiers using resistor-Zener network. IC Role / Device Role / Timing Role: Stable voltage node enabling predictable current through series resistor (e.g., 1 kΩ → 7.5 mA). Use Value: Delivers 7.5 V with ±5% initial tolerance and <0.1 V total drift over full temperature range, ensuring repeatable current setting. | Use Scenario: Fine-tuning frequency of crystal oscillator circuits where temperature-induced drift must be compensated. IC Role / Device Role / Timing Role: Temperature-compensated voltage reference adjusting varactor diode bias to counteract crystal aging. Use Value: +0.058 %/°C coefficient matches typical crystal drift profile, enabling first-order compensation without active circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5236B-1/TR | Same electrical specs but in axial DO-35 package; no metallurgical bond; non-hermetic epoxy body | Limited to non-radiation-hardened, non-military environments; unsuitable for high-reliability or vacuum applications | Select when cost-sensitive, non-hermetic axial mounting is acceptable and radiation tolerance is not required |
| BZX55C7V5 | 7.5 V, ±5%, 500 mW in DO-35; higher ZZT (10 Ω); no MIL-PRF-19500 screening option | Lower regulation precision under dynamic loads; no up-screening path for defense/aerospace use | Select for commercial-grade general-purpose regulation where tighter impedance and radiation hardness are unnecessary |
Compared with 1N5236B-1/TR and BZX55C7V5, the 1N5236BUR-1/TR delivers superior thermal stability, hermetic reliability, and lower dynamic impedance-critical for precision references and harsh-environment designs-while retaining identical voltage rating and power class.
Availability
1N5236BUR-1/TR is available at Aetrix Electronics and suitable for low-power reference supplies, overvoltage protection circuits, and current-source bias networks requiring stable component supply, consistent Zener voltage tolerance, and RoHS-compliant SMT packaging.
Supply support for 1N5236BUR-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, RF, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N52xxBUR-1 series was designed to deliver JEDEC-standard Zener regulation in hermetically sealed surface-mount form, targeting applications demanding long-term stability, ESD insensitivity, and operation across extreme temperature ranges.
FAQ
What is the Zener voltage tolerance for the 1N5236BUR-1/TR?
The 1N5236BUR-1/TR has a nominal Zener voltage of 7.5 V with a guaranteed tolerance of ±5% at 20 mA test current, corresponding to a regulation range of 7.13 V to 7.88 V at 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the Microsemi datasheet T4-LDS-0232-1.
What package type does the 1N5236BUR-1/TR use?
The 1N5236BUR-1/TR uses the DO-213AA (also known as SOD80 or MELF) glass surface-mount package, featuring metallurgically bonded end caps and a hermetically sealed construction. Its dimensions are 1.60–1.70 mm diameter and 3.30–3.70 mm length, per the package drawing on page 6 of the datasheet.
Is the 1N5236BUR-1/TR RoHS compliant?
Yes, the 1N5236BUR-1/TR is RoHS compliant, indicated by the "e3" suffix in its full nomenclature. RoHS compliance applies to commercial-grade versions only and covers the annealed matte-tin terminal plating, meeting lead-free soldering requirements per JEDEC J-STD-020.
What is the maximum power dissipation for the 1N5236BUR-1/TR?
The 1N5236BUR-1/TR has a steady-state power dissipation rating of 0.5 W under specified thermal conditions: end cap temperature <125 °C or ambient temperature <50 °C on FR4 board with 1 oz copper. Derating begins linearly above 50 °C ambient, reaching zero at 150 °C, as shown in Figure 2 of the datasheet.
Does the 1N5236BUR-1/TR have radiation hardness certification?
Yes, the 1N5236BUR-1/TR is inherently radiation hard per Microsemi MicroNote 050 due to its metallurgically bonded glass construction. While not individually certified, the device family exhibits proven resistance to total ionizing dose (TID) and displacement damage, making it suitable for space-qualified and nuclear instrumentation applications.
1N5236BUR-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):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 6 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 6 V
- 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
1N5236BUR-1/TR FAQ
1.How can I place an order for 1N5236BUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5236BUR-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 1N5236BUR-1/TR reliable?
The price and inventory of 1N5236BUR-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 1N5236BUR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N5236BUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5236BUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5236BUR-1/TR?
1N5236BUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5236BUR-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 1N5236BUR-1/TR?
For technical support, including 1N5236BUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5236BUR-1/TR requirements.
6.How does Aetrix verify that 1N5236BUR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N5236BUR-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 1N5236BUR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N5236BUR-1/TR?
All 1N5236BUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5236BUR-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 1N5236BUR-1/TR part is unused and in its original packaging.
Return procedure for 1N5236BUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5236BUR-1/TR 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…
