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Microchip Technology 1N5365BE3/TR12
- Part No.:
- 1N5365BE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5365BE3/TR12.pdf
- Description:
- DIODE ZENER 36V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:8,503
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Product details
Overview
1N5365BE3/TR12 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 36 V, ±5% tolerance (B suffix), 30 mA test current, 11 Ω dynamic impedance at IZT, and maximum reverse current of 0.5 μA at 27.4 V. It operates from –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5365BE3/TR12 datasheet, 1N5365BE3/TR12 pinout, 1N5365BE3/TR12 application, or 1N5365BE3/TR12 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (25 °C/W junction-to-lead), surge current rating (160 A), voltage regulation (ΔVZ = 3.3 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This discrete Zener diode functions as a two-terminal voltage regulator in reverse-biased mode, maintaining stable output voltage across wide current (30 mA to 160 mA) and temperature (–65 °C to +150 °C) ranges. Its low dynamic impedance (11 Ω at 30 mA) and tight ±5% voltage tolerance ensure minimal drift under load variation.
Designed for through-hole mounting with T-18 axial package, it features void-free UL94V-0 epoxy encapsulation, cathode band polarity marking, and moisture sensitivity level 1 - eliminating dry-pack requirements. Thermal performance is specified at 3/8″ (10 mm) lead length from body (25 °C/W) and on FR4 board (85 °C/W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±5% - defines regulated output voltage under 30 mA test current; high-end limit is 37.8 V for IZM calculation. |
| Power Dissipation | 5.0 W at 25 °C lead temperature - supports continuous operation up to 160 mA when adequately heat-sunk. |
| Dynamic Impedance (ZZ) | 11 Ω at 30 mA - ensures low voltage deviation (<0.33 V) for ±10 mA current change near regulation point. |
| Reverse Current (IR) | 0.5 μA max at 27.4 V - guarantees minimal leakage in standby or high-impedance sensing circuits. |
| Surge Current (IZSM) | 160 A peak (8.3 ms half-sine) - withstands transient overvoltage events without degradation. |
| Voltage Regulation (ΔVZ) | 3.3 V - difference between voltages measured at 10% and 50% of IZM, indicating regulation linearity. |
| Thermal Resistance | 25 °C/W junction-to-lead (3/8″ lead length) - enables thermal design with predictable junction rise under load. |
Pinout & Package
Package: T-18 axial-leaded plastic case (void-free UL94V-0 epoxy), cathode indicated by colored band; leads are annealed matte-tin plated per MIL-STD-750, solderable at 260 °C for 10 s.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse bias applied across anode–cathode to activate regulation. |
| Cathode | Zener regulation output / voltage reference node | Banded end; supplies stable 36 V reference when reverse-biased; must be held at higher potential than anode. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures standardized mechanical dimensions, electrical behavior, and interchangeability across qualified suppliers. |
| RoHS-compliant e3 suffix | Meets EU Directive 2011/65/EU with matte-tin plating - no lead, cadmium, mercury, hexavalent chromium, PBB, or PBDE. |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints - safe for standard SMT/reflow handling without baking. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Withstands human-body-model ESD events without parameter shift - suitable for manual assembly and field-repair environments. |
| High surge current capability | 160 A non-recurrent half-sine (8.3 ms) - protects downstream circuitry from lightning-induced or inductive-switching transients. |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback or forward converter feedback path via optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Zener diode provides precise 36 V reference to TL431 shunt regulator or directly biases optocoupler LED. Use Value: ±5% tolerance and 3.3 V ΔVZ ensure <±1.5% output voltage stability across line/load/temperature variations. | Use Scenario: Supplies stable excitation voltage to bridge-based pressure or strain sensors in factory automation systems. IC Role / Device Role / Timing Role: Functions as low-drift, low-noise voltage reference source for ratiometric analog signal conditioning. Use Value: 0.5 μA reverse leakage at 27.4 V minimizes offset error in high-impedance sensor interfaces. |
| Overvoltage Clamp Protection | Programmable Threshold Detector |
Use Scenario: Clamps transient spikes on 24 V DC control bus in PLC I/O modules during relay switching or motor commutation. IC Role / Device Role / Timing Role: Acts as passive crowbar element, conducting above 37.8 V to divert surge energy to ground. Use Value: 160 A surge rating and 25 °C/W thermal resistance enable repeated clamping without thermal runaway. | Use Scenario: Sets trip threshold for comparator-based battery undervoltage lockout in telecom backup systems. IC Role / Device Role / Timing Role: Provides accurate 36 V reference to LM393 input, triggering shutdown when battery drops below 36 V × 0.95. Use Value: Tight ±5% tolerance eliminates need for external trimming resistors, reducing BOM count and calibration steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5365BRLG | Same 36 V ±5%, 5 W rating, but in bulk packaging (no tape/reel); identical T-18 package and electrical specs. | No TR12 tape-and-reel format - unsuitable for automated pick-and-place; preferred for hand-solder prototyping or repair. | Select 1N5365BRLG only when reel packaging is unnecessary and cost-per-unit is prioritized over assembly compatibility. |
| MMBZ5245BS-7-F | Surface-mount SOD-123 package; 33 V ±5%, 250 mW - not a direct replacement due to lower power and different voltage. | Used in space-constrained PCBs where axial leads are impractical; requires layout redesign and derating for equivalent energy handling. | Choose MMBZ5245BS-7-F only when board area is critical and system-level surge energy is ≤0.5 J - verify thermal margin separately. |
Compared with 1N5365BRLG (bulk) and MMBZ5245BS-7-F (SMT), the 1N5365BE3/TR12 uniquely combines tape-and-reel automation readiness, 5 W power handling, 36 V precision, and axial-mount flexibility - making it optimal for industrial power supply production lines requiring traceability and thermal robustness.
Availability
1N5365BE3/TR12 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor references, overvoltage clamp protection, and programmable threshold detectors requiring stable component supply and full RoHS compliance.
Supply support for 1N5365BE3/TR12 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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The 1N53xxB series was designed for ruggedized voltage regulation in harsh-environment power systems - emphasizing thermal stability, surge resilience, and long-term parametric consistency under extended temperature cycling.
FAQ
What is the Zener voltage tolerance of the 1N5365BE3/TR12?
The 1N5365BE3/TR12 has a Zener voltage tolerance of ±5%, indicated by the "B" suffix in its part number. This means its nominal 36 V regulation voltage falls within 34.2 V to 37.8 V at 30 mA test current and 25 °C lead temperature, as confirmed in Microsemi's official 1N5333B–1N5388B datasheet Rev D.
Does the 1N5365BE3/TR12 require dry packing before use?
No, the 1N5365BE3/TR12 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity level 1 classification, meaning it can be stored and processed under standard ambient conditions without baking or humidity-controlled packaging - verified in the "Features" section of the Microsemi datasheet.
What is the maximum surge current rating for the 1N5365BE3/TR12?
The 1N5365BE3/TR12 has a maximum non-recurrent surge current (IZSM) rating of 160 A, defined as the peak value of an 8.3 ms half-sine waveform. This value is specified in the "Electrical Characteristics" table on page 2 of the Microsemi 1N5333B–1N5388B datasheet and reflects its capability to absorb transient energy without failure.
How is polarity marked on the 1N5365BE3/TR12?
The 1N5365BE3/TR12 uses a cathode band marking: a single colored band on the body identifies the cathode terminal. The diode must be operated with the banded end at higher potential than the unmarked (anode) end to achieve Zener regulation - this polarity convention is explicitly stated in the "Mechanical and Packaging" section of the Microsemi datasheet.
Is the 1N5365BE3/TR12 RoHS compliant?
Yes, the 1N5365BE3/TR12 is RoHS compliant, as confirmed by the "e3" suffix in its full part number. Per Microsemi documentation, the e3 designation indicates matte-tin lead plating meeting EU Directive 2011/65/EU requirements, with no lead, cadmium, mercury, hexavalent chromium, PBB, or PBDE - verified in the "Features" section of the datasheet.
1N5365BE3/TR12 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 11 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 25.9 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- T-18
1N5365BE3/TR12 FAQ
1.How can I place an order for 1N5365BE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5365BE3/TR12 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 1N5365BE3/TR12 reliable?
The price and inventory of 1N5365BE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5365BE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5365BE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5365BE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5365BE3/TR12?
1N5365BE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5365BE3/TR12 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 1N5365BE3/TR12?
For technical support, including 1N5365BE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5365BE3/TR12 requirements.
6.How does Aetrix verify that 1N5365BE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5365BE3/TR12 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 1N5365BE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5365BE3/TR12?
All 1N5365BE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5365BE3/TR12, 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 1N5365BE3/TR12 part is unused and in its original packaging.
Return procedure for 1N5365BE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5365BE3/TR12 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
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BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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