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Microchip Technology 1N5366BE3/TR13
- Part No.:
- 1N5366BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5366BE3/TR13.pdf
- Description:
- DIODE ZENER 39V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:7,545
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Product details
Overview
1N5366BE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with a nominal regulation voltage of 39 V, ±5% tolerance (B suffix), 30 mA test current (IZT), 14 Ω dynamic impedance (ZZ), and 170 mA maximum Zener current (IZM) at 25 °C lead temperature. It operates from –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in industrial power supplies.
For engineers reviewing the 1N5366BE3/TR13 datasheet, 1N5366BE3/TR13 pinout, 1N5366BE3/TR13 application, or 1N5366BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (25 °C/W junction-to-lead), surge current rating (170 A), low voltage regulation drift (ΔVZ = 3.1 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator in reverse-biased mode, maintaining stable output voltage across wide current (10–170 mA) and temperature (–65 °C to +150 °C) ranges. Its 25 °C/W junction-to-lead thermal resistance enables reliable 5 W operation with minimal heatsinking when leads are trimmed to 10 mm.
The 1N5366BE3/TR13 exhibits low dynamic impedance (14 Ω at 30 mA) and tight voltage regulation (ΔVZ = 3.1 V between 10% and 50% IZM), supporting stable reference generation in analog circuits and feedback loops. Its cathode band marking and axial T-18 package support manual and automated through-hole assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 39 V ±5% - precise regulation point for 36–42 V system references |
| Test Current (IZT) | 30 mA - operating point where VZ and ZZ are specified; defines biasing requirement |
| Dynamic Impedance (ZZ) | 14 Ω - low AC resistance ensures minimal output voltage variation under load transients |
| Max Zener Current (IZM) | 170 mA - maximum continuous DC current at TL = 25 °C with 10 mm lead length |
| Voltage Regulation (ΔVZ) | 3.1 V - difference between VZ measured at 10% and 50% of IZM; quantifies regulation linearity |
| Thermal Resistance (RθJL) | 25 °C/W - junction-to-lead value enables thermal design with standard PCB lead routing |
| Surge Current (IZSM) | 170 A - peak non-repetitive half-sine (8.3 ms) capability for transient suppression |
Pinout & Package
Package: Axial-leaded T-18 plastic case (void-free UL94V-0 epoxy), cathode indicated by color band; RoHS-compliant matte-tin plated leads solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to circuit ground or lower-potential rail; forms reference return path |
| Cathode | Zener regulation output terminal | Banded end; connected to regulated voltage node; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures standardized electrical behavior and interchangeability across qualified suppliers |
| ±5% voltage tolerance (B suffix) | Supports mid-precision applications without requiring post-calibration trimming |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints for SMT handling |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces need for special ESD controls during board assembly and handling |
| RoHS-compliant (e3 suffix) | Meets EU Directive 2011/65/EU and China RoHS II without lead or hazardous substance exemptions |
Applications
| Industrial Power Supply Feedback | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters via optocoupler feedback loop. IC Role / Device Role / Timing Role: Zener reference element setting error amplifier threshold in secondary-side regulation. Use Value: 39 V nominal VZ provides stable trip point for 36–42 V output rails; 14 Ω ZZ minimizes feedback loop gain variation across load. |
Use Scenario: Clamping transient surges on 24 V DC input rails in factory automation controllers. IC Role / Device Role / Timing Role: Two-terminal shunt protector diverting excess energy to ground during voltage spikes. Use Value: 170 A surge rating (8.3 ms half-sine) absorbs IEC 61000-4-5 Level 3 surges; 3.1 V ΔVZ ensures predictable clamping window. |
| Programmable Reference Source | DC-DC Converter Trim Adjustment |
Use Scenario: Providing adjustable reference voltage for DAC-controlled analog front-ends in test equipment. IC Role / Device Role / Timing Role: Precision Zener node combined with series resistor and potentiometer for fine-tuned VREF. Use Value: ±5% tolerance and low 3.1 V ΔVZ enable 0.5% total reference stability over 0–70 °C ambient range. |
Use Scenario: Fine-tuning output voltage of fixed-output DC-DC modules using external feedback divider. IC Role / Device Role / Timing Role: Shunt-connected Zener replacing bottom resistor in feedback network to shift regulation setpoint. Use Value: 39 V VZ allows accurate 5–12 V output adjustment; 170 mA IZM supports robust bias current for divider stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5366BRLG | Same 39 V ±5%, but in bulk packaging (no tape/reel); identical electrical specs and T-18 package | No reel logistics-suitable for low-volume prototyping or hand-soldered repair | Select 1N5366BRLG when tape-and-reel automation is unnecessary and cost-per-unit is prioritized |
| MMSZ5267ET1G | Surface-mount SOD-123 package; 39 V ±5%; lower power (500 mW); 17 Ω ZZ; 10 mA IZT | Not drop-in compatible-requires PCB redesign; limited surge capability (1.2 A) | Choose MMSZ5267ET1G only for space-constrained designs where 5 W dissipation is not required |
Compared with 1N5366BE3/TR13, 1N5366BRLG offers identical performance in bulk form, while MMSZ5267ET1G trades power handling and surge robustness for miniaturization-making the 1N5366BE3/TR13 optimal for high-energy clamp and reference roles in industrial hardware.
Availability
1N5366BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, overvoltage protection circuits, programmable reference sources, and DC-DC converter trim networks requiring stable component supply and long-term obsolescence management.
Supply support for 1N5366BE3/TR13 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 timing solutions for aerospace, defense, and industrial markets.
The 1N53xxB series was designed specifically for ruggedized 5 W voltage regulation in harsh-environment power systems, emphasizing thermal robustness, surge resilience, and JEDEC-standardized interchangeability.
FAQ
What is the Zener voltage tolerance of the 1N5366BE3/TR13?
The 1N5366BE3/TR13 has a Zener voltage tolerance of ±5%, indicated by the "B" suffix in its part number. This means its actual regulation voltage falls within 37.05 V to 40.95 V at 30 mA test current and 25 °C lead temperature, as confirmed in Microsemi's official 1N5333B–1N5388B datasheet Rev D.
Can the 1N5366BE3/TR13 be used in surface-mount designs?
No-the 1N5366BE3/TR13 uses an axial-leaded T-18 package and is intended for through-hole mounting. For surface-mount equivalents, Microsemi offers the SMBJ5366B or SMBG5366B in DO-214AA packages; these share the same 39 V ±5% specification but require different PCB footprints and reflow profiles.
What is the maximum surge current rating for the 1N5366BE3/TR13?
The 1N5366BE3/TR13 has a maximum non-repetitive surge current (IZSM) of 170 A, defined as the peak of an 8.3 ms half-sine waveform. This rating is validated per JEDEC standards and supports transient suppression in industrial power inputs subject to IEC 61000-4-5 surge events.
How does thermal resistance affect the 1N5366BE3/TR13's power handling?
The 1N5366BE3/TR13 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W when leads are trimmed to 10 mm. At 25 °C lead temperature, it delivers full 5 W; above that, derating applies linearly-e.g., at TL = 75 °C, max power drops to 3.75 W. PCB copper area does not significantly improve RθJL for this axial package.
Is the 1N5366BE3/TR13 RoHS compliant?
Yes-the "e3" suffix explicitly denotes RoHS compliance per EU Directive 2011/65/EU and China RoHS II. The device uses annealed matte-tin plating on leads and UL94V-0 epoxy encapsulation, with no lead, cadmium, mercury, hexavalent chromium, PBB, or PBDE substances above threshold limits.
1N5366BE3/TR13 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):
- 39 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 14 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 28.1 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
1N5366BE3/TR13 FAQ
1.How can I place an order for 1N5366BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5366BE3/TR13 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 1N5366BE3/TR13 reliable?
The price and inventory of 1N5366BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5366BE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5366BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5366BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5366BE3/TR13?
1N5366BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5366BE3/TR13 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 1N5366BE3/TR13?
For technical support, including 1N5366BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5366BE3/TR13 requirements.
6.How does Aetrix verify that 1N5366BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5366BE3/TR13 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 1N5366BE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5366BE3/TR13?
All 1N5366BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5366BE3/TR13, 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 1N5366BE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5366BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5366BE3/TR13 Tags
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