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Microchip Technology 1N5366CE3/TR13
- Part No.:
- 1N5366CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5366CE3/TR13.pdf
- Description:
- DIODE ZENER 39V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:4,829
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Product details
Overview
1N5366CE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with a nominal regulation voltage of 39 V, ±2% tolerance (C suffix), 30 mA test current, and 14 Ω maximum dynamic impedance at IZT. 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 1N5366CE3/TR13 datasheet, 1N5366CE3/TR13 pinout, 1N5366CE3/TR13 application, or 1N5366CE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (170 A), voltage regulation (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 variation (IZM = 170 mA) and temperature extremes. Its low dynamic impedance (14 Ω) and tight ±2% VZ tolerance ensure minimal voltage drift under load changes.
The 1N5366CE3/TR13 uses a void-free thermosetting epoxy T-18 package with cathode band marking, rated for 5 W steady-state dissipation at 25 °C lead temperature and 1.47 W on FR4 board. It withstands 8.3 ms half-sine surge currents up to 170 A and exhibits ESD immunity per MIL-STD-750 Method 1020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 39 V ±2% - precise regulation point for feedback loops requiring high stability |
| Test Current (IZT) | 30 mA - operating point where VZ and ZZ are specified; defines biasing requirement |
| Dynamic Impedance (ZZ) | 14 Ω max - low AC resistance ensures minimal output voltage variation with current ripple |
| Max Regulator Current (IZM) | 170 mA - maximum DC current before exceeding 5 W power limit at TL = 25 °C |
| Surge Current (IZSM) | 170 A peak (8.3 ms half-sine) - supports transient overvoltage clamping without failure |
| Voltage Regulation (ΔVZ) | 3.1 V - difference between VZ measured at 10% and 50% of IZM; quantifies regulation linearity |
| Thermal Resistance | 25 °C/W junction-to-lead - enables high-power operation with simple lead heatsinking |
Pinout & Package
T-18 axial-leaded plastic package with cathode indicated by color band; leads are annealed matte-tin plated per MIL-STD-750, solderable at 260 °C for 10 s; weight: 0.7 g; moisture sensitivity level: Level 1 (no dry pack required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse voltage applied across anode–cathode |
| Cathode | Zener regulation terminal / voltage reference output | Banded end; connected to regulated rail; maintains 39 V relative to anode when reverse-biased above knee |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables accurate voltage references without post-calibration in industrial sensor interfaces |
| RoHS-compliant e3 suffix | Meets global environmental compliance requirements without lead-based solder compatibility loss |
| 170 A surge current rating | Clamps lightning-induced transients in telecom power inputs without degradation |
| Level 1 moisture sensitivity | Eliminates bake-out prior to reflow, reducing manufacturing cost and process time |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Withstands handling and assembly without special static control beyond standard practices |
Applications
| Industrial Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Stabilizing error amplifier reference in isolated DC-DC converter feedback loop. IC Role / Device Role / Timing Role: Precision voltage reference source providing stable 39 V to optocoupler input. Use Value: ±2% tolerance and 14 Ω ZZ minimize output voltage drift across line/load/temperature variations. |
Use Scenario: Clamping 48 V telecom line against surges exceeding 60 V. IC Role / Device Role / Timing Role: Shunt overvoltage protector diverting excess energy to ground during transients. Use Value: 170 A surge rating and 3.1 V ΔVZ ensure reliable clamping without thermal runaway. |
| Programmable Voltage Reference | Temperature-Stable Bias Generator |
|
Use Scenario: Setting threshold voltage for comparator-based battery cutoff in UPS systems. IC Role / Device Role / Timing Role: Fixed reference node for analog comparators requiring sub-1% accuracy. Use Value: Tight 39 V ±2% tolerance and –65 °C to +150 °C operating range support wide-environment deployment. |
Use Scenario: Generating stable bias current for op-amp input stages in outdoor instrumentation. IC Role / Device Role / Timing Role: Temperature-compensated current source via constant-VZ and series resistor. Use Value: Low 25 °C/W thermal resistance and minimal VZ drift vs. temperature enable stable bias over ambient extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5366B | ±5% VZ tolerance (vs. ±2% for 1N5366CE3/TR13); otherwise identical electrical specs and package | Suitable for non-critical regulation where cost priority outweighs precision | Select 1N5366B only if ±5% VZ meets system margin requirements and RoHS is not mandated |
| MMSZ5255E | Surface-mount SOD-123 package; 39 V ±5%; 500 mW rating (vs. 5 W); higher ZZ (40 Ω) | Limited to low-power signal-level referencing; cannot replace 1N5366CE3/TR13 in power rail clamping | Choose MMSZ5255E only for space-constrained PCBs where power dissipation ≤0.5 W is sufficient |
Compared with 1N5366B and MMSZ5255E, the 1N5366CE3/TR13 delivers superior precision (±2%), higher power handling (5 W), and robust surge capability (170 A), making it optimal for industrial-grade voltage regulation where reliability and accuracy are critical.
Availability
1N5366CE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, telecom surge protection circuits, and programmable voltage reference designs requiring stable component supply and full RoHS compliance.
Supply support for 1N5366CE3/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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N53xxB series was designed for ruggedized voltage regulation in harsh environments-emphasizing wide temperature operation, surge resilience, and long-term parametric stability under continuous DC stress.
FAQ
What is the Zener voltage tolerance of the 1N5366CE3/TR13?
The 1N5366CE3/TR13 has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in its part number. This means its actual regulation voltage falls within 38.22 V to 39.78 V at 30 mA test current and 25 °C lead temperature, enabling high-accuracy reference design without trimming.
Can the 1N5366CE3/TR13 be used in surface-mount applications?
No-the 1N5366CE3/TR13 uses an axial-leaded T-18 package and is not surface-mount compatible. For SMT equivalents, Microsemi offers the SMBJ5366B (DO-214AA) and SMBG5366B (DO-214AB), both rated for 5 W but requiring different PCB layout and thermal pad design than the 1N5366CE3/TR13.
What is the maximum power dissipation of the 1N5366CE3/TR13 on a standard FR4 PCB?
When mounted on a standard FR4 PCB (1 oz copper, 4 mm² pads, 1 mm track width, 25 mm length), the 1N5366CE3/TR13 has a steady-state power rating of 1.47 W at 25 °C ambient, based on its 85 °C/W junction-to-ambient thermal resistance. Derating is required above 25 °C ambient per Figure 1 in the datasheet.
Does the 1N5366CE3/TR13 meet RoHS requirements?
Yes-the "e3" suffix explicitly denotes RoHS compliance, meaning the 1N5366CE3/TR13 uses matte-tin lead plating without lead, cadmium, mercury, hexavalent chromium, PBB, or PBDE. It satisfies EU Directive 2011/65/EU and is compatible with lead-free reflow profiles up to 260 °C for 10 seconds.
How is polarity marked on the 1N5366CE3/TR13?
The 1N5366CE3/TR13 uses a cathode band (typically black or dark stripe) near one end of the cylindrical body to indicate the cathode terminal. The banded end must be held at a more positive potential than the anode to achieve Zener breakdown and regulation; reverse connection will forward-bias the diode at ~1.2 V.
1N5366CE3/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:
- ±2%
- 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
1N5366CE3/TR13 FAQ
1.How can I place an order for 1N5366CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5366CE3/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 1N5366CE3/TR13 reliable?
The price and inventory of 1N5366CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5366CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5366CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5366CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5366CE3/TR13?
1N5366CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5366CE3/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 1N5366CE3/TR13?
For technical support, including 1N5366CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5366CE3/TR13 requirements.
6.How does Aetrix verify that 1N5366CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5366CE3/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 1N5366CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5366CE3/TR13?
All 1N5366CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5366CE3/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 1N5366CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5366CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5366CE3/TR13 Tags
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