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Microchip Technology 1N5365CE3/TR8
- Part No.:
- 1N5365CE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5365CE3/TR8.pdf
- Description:
- DIODE ZENER 36V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:5,896
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Product details
Overview
1N5365CE3/TR8 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 36 V, ±2% tolerance (C suffix), 30 mA test current, and 11 Ω dynamic impedance at IZT. It operates from −65 °C to +150 °C and delivers stable voltage reference in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the 1N5365CE3/TR8 datasheet, 1N5365CE3/TR8 pinout, 1N5365CE3/TR8 application, or 1N5365CE3/TR8 equivalent, key selection criteria include Zener voltage tolerance, maximum surge current (160 A), thermal resistance (25 °C/W junction-to-lead), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a precision shunt voltage regulator, maintaining 36 V across its terminals when reverse-biased above its knee voltage and within its specified operating current range (30 mA test point, up to 160 mA max steady-state with heat sinking). Its low dynamic impedance (11 Ω) ensures minimal voltage variation under load changes.
The 1N5365CE3/TR8 uses a void-free thermosetting epoxy T-18 package with cathode band marking, rated for 5 W dissipation at 25 °C lead temperature (3/8″ from body), and exhibits 0.65 V maximum voltage regulation (ΔVZ) between 10% and 50% of IZM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±2% - precise reference for feedback networks requiring tight regulation stability. |
| Test Current (IZT) | 30 mA - defined operating point where VZ and ZZ are guaranteed per JEDEC spec. |
| Dynamic Impedance (ZZ) | 11 Ω - low AC impedance ensures minimal output voltage shift during transient load variations. |
| Max Surge Current (IZSM) | 160 A (8.3 ms half-sine) - withstands short-duration line transients without degradation. |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables 5 W operation with modest heatsinking at 3/8″ lead length. |
| Reverse Leakage (IR) | 0.5 μA @ 28.8 V - negligible standby current in high-impedance bias networks. |
| Voltage Regulation (ΔVZ) | 0.65 V - difference between VZ measured at 10% and 50% of IZM, indicating regulation linearity. |
Pinout & Package
Package: Axial-leaded T-18 plastic case (JEDEC DO-201AD), void-free UL94V-0 epoxy body, cathode indicated by colored band. Leads are annealed matte-tin plated (RoHS compliant, solderable per MIL-STD-750 Method 2026).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; reverse-bias polarity requires cathode at higher potential. |
| Cathode | Regulated output node | Banded end; supplies stable 36 V reference when reverse current flows through external series resistor. |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables tighter feedback loop accuracy than ±5% (B) or ±10% (A) variants, reducing need for post-calibration trimming. |
| Moisture sensitivity Level 1 | No dry-pack required per IPC/JEDEC J-STD-020B - simplifies handling and eliminates bake-out before assembly. |
| ESD robustness | Nonsensitive per MIL-STD-750 Method 1020 - survives standard handling without special ESD controls. |
| High surge current rating | 160 A peak (8.3 ms) supports use in unregulated input stages exposed to lightning-induced surges or inductive kickback. |
| e3 RoHS compliance | Matte-tin plating meets EU RoHS Directive 2011/65/EU and China RoHS, enabling global deployment without material waivers. |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters via optocoupler-coupled feedback network. IC Role / Device Role / Timing Role: Shunt reference providing precise 36 V threshold to TL431-like control IC or discrete comparator. Use Value: ±2% tolerance ensures output stays within ±1.5% of nominal over line/load/temperature, meeting industrial PSU specs. |
Use Scenario: Clamps transient voltage spikes on 24 V DC bus lines in motor drive controllers. IC Role / Device Role / Timing Role: Fast-acting crowbar element that conducts above 36 V to divert surge energy to ground. Use Value: 160 A surge rating absorbs 8.3 ms transients per IEC 61000-4-5 Level 4 without failure, protecting downstream MOSFETs. |
| Programmable Voltage Reference | Industrial Sensor Excitation |
Use Scenario: Provides stable excitation voltage for precision RTD or strain gauge bridges in data acquisition modules. IC Role / Device Role / Timing Role: Low-noise, low-drift shunt reference replacing more expensive bandgap ICs in cost-sensitive designs. Use Value: 11 Ω dynamic impedance minimizes bridge imbalance error caused by current draw variation across temperature. |
Use Scenario: Supplies regulated bias to 4–20 mA transmitter front-end circuits operating in harsh factory environments. IC Role / Device Role / Timing Role: Primary voltage reference for DAC-controlled current source, immune to supply rail fluctuations. Use Value: −65 °C to +150 °C operating range ensures reliability in enclosures exposed to ambient extremes near motors or furnaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5365B | Same 36 V nominal, but ±5% tolerance (B suffix) and higher ZZ (14 Ω) | Acceptable where feedback loop gain compensates wider VZ spread; lower cost for non-critical references | Select 1N5365B if system-level calibration or wider tolerance budget allows cost reduction. |
| MMSZ5245B-TP | Surface-mount SOD-123, 36 V ±5%, 500 mW rating, ZZ = 25 Ω | Not suitable for 5 W continuous dissipation; limited to low-power biasing or signal clamping | Choose MMSZ5245B-TP only for space-constrained PCBs where power < 0.5 W and tolerance > ±5% is acceptable. |
Compared with 1N5365B and MMSZ5245B-TP, the 1N5365CE3/TR8 uniquely combines ±2% tolerance, 5 W power handling, and axial-leaded mechanical robustness-making it optimal for industrial power supplies and ruggedized protection circuits where precision and surge resilience are jointly required.
Availability
1N5365CE3/TR8 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, programmable voltage references, and industrial sensor excitation systems requiring stable component supply and long-term obsolescence management.
Supply support for 1N5365CE3/TR8 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 aerospace, defense, and industrial markets.
The 1N53xxB series was designed specifically for high-stability, high-power Zener regulation in mission-critical power conversion and protection applications where thermal robustness and long-term parametric consistency are essential.
FAQ
What is the Zener voltage tolerance of the 1N5365CE3/TR8?
The 1N5365CE3/TR8 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This means its actual regulation voltage falls within 35.28 V to 36.72 V at 30 mA test current and 25 °C lead temperature, enabling tighter feedback accuracy than ±5% (B) or ±10% (A) variants.
Can the 1N5365CE3/TR8 be used in surface-mount designs?
No-the 1N5365CE3/TR8 is an axial-leaded T-18 (DO-201AD) package and is not compatible with surface-mount assembly. For SMT equivalents, Microsemi offers the SMBJ5365B or SMBG5365B in SMB/SMBG packages, though those carry different power ratings and tolerances than the 1N5365CE3/TR8.
What is the maximum continuous power dissipation for the 1N5365CE3/TR8?
The 1N5365CE3/TR8 is rated for 5.0 W steady-state power dissipation at a lead temperature (TL) of 25 °C with 3/8″ (10 mm) lead length from the body. Derating is required above 25 °C per Figure 1 in the datasheet; at TL = 100 °C, maximum power drops to approximately 2.5 W.
Does the 1N5365CE3/TR8 require dry packing before reflow soldering?
No-the 1N5365CE3/TR8 has IPC/JEDEC moisture sensitivity level 1, meaning it is not hygroscopic and does not require dry packing or baking prior to soldering. Its void-free epoxy encapsulation prevents moisture ingress, simplifying manufacturing logistics.
How is polarity marked on the 1N5365CE3/TR8?
The 1N5365CE3/TR8 uses a cathode band-typically a single colored stripe near one end of the cylindrical body-to indicate the cathode terminal. The banded end must be held at a higher potential than the anode for proper Zener operation; reversing polarity subjects it to forward conduction with ~1.2 V drop.
1N5365CE3/TR8 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:
- ±2%
- 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
1N5365CE3/TR8 FAQ
1.How can I place an order for 1N5365CE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5365CE3/TR8 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 1N5365CE3/TR8 reliable?
The price and inventory of 1N5365CE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5365CE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5365CE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5365CE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5365CE3/TR8?
1N5365CE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5365CE3/TR8 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 1N5365CE3/TR8?
For technical support, including 1N5365CE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5365CE3/TR8 requirements.
6.How does Aetrix verify that 1N5365CE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5365CE3/TR8 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 1N5365CE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5365CE3/TR8?
All 1N5365CE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5365CE3/TR8, 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 1N5365CE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5365CE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5365CE3/TR8 Tags
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