Microchip Technology 1N5364CE3/TR8
- Part No.:
- 1N5364CE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5364CE3/TR8.pdf
- Description:
- DIODE ZENER 33V 5W T18
- Quantity:
- Payment:

- Shipping:

Inventory:4,318
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Product details
Overview
1N5364CE3/TR8 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 33 V, ±2% tolerance (C suffix), 40 mA test current, 10 Ω dynamic impedance at IZT, and maximum reverse leakage of 0.5 μA at 25.1 V. 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 1N5364CE3/TR8 datasheet, 1N5364CE3/TR8 pinout, 1N5364CE3/TR8 application, or 1N5364CE3/TR8 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (150 A), voltage regulation (ΔVZ = 3.5 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse breakdown, with Zener voltage specified at 40 mA test current and measured within 40 ±10 ms after DC current application. Its low dynamic impedance (10 Ω) ensures stable regulation across varying load currents.
The 1N5364CE3/TR8 uses a void-free thermosetting epoxy T-18 package rated UL94V-0, with cathode indicated by band and polarity requiring banded end to be positive. Thermal resistance is 25 °C/W junction-to-lead at 10 mm lead length, enabling 5 W dissipation at TL < 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 33 V nominal, ±2% tolerance - enables precise 33 V reference generation with minimal calibration drift. |
| Test Current (IZT) | 40 mA - defines operating point where VZ and ZZ are guaranteed; sets minimum bias for stable regulation. |
| Dynamic Impedance (ZZ) | 10 Ω max at IZT - ensures low output voltage variation under changing load current (e.g., ±10 mA change → ±0.1 V shift). |
| Max Reverse Leakage (IR) | 0.5 μA at 25.1 V - guarantees negligible standby current in high-impedance sensing or battery-backed circuits. |
| Max Regulator Current (IZM) | 150 mA - supports up to 4.95 W continuous dissipation at 33 V when adequately heat-sunk (TL < 25 °C). |
| Surge Current (IZSM) | 150 A peak (8.3 ms half-sine) - provides robust transient overvoltage clamping without failure. |
| Voltage Regulation (ΔVZ) | 3.5 V - difference between VZ at 10% and 50% of IZM, quantifying regulation linearity across operating range. |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-201AD, void-free UL94V-0 epoxy body, tin-lead or RoHS-compliant matte-tin plating, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded lead | Connected to circuit ground or lower potential node; reverse-biased operation requires this terminal negative relative to cathode. |
| Cathode | Banded lead | Connected to regulated voltage node; must be held positive relative to anode to maintain Zener conduction and voltage reference stability. |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Reduces need for post-production trimming in precision reference designs; supports tighter system-level voltage margining. |
| RoHS-compliant e3 suffix | Meets EU Directive 2011/65/EU with annealed matte-tin plating, eliminating lead while maintaining solderability per MIL-STD-750 Method 2026. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints-enables direct placement without baking or humidity-controlled storage. |
| Low thermal resistance (25 °C/W) | Permits full 5 W power dissipation with only 3/8″ (10 mm) lead length from body, simplifying heatsinking in compact power modules. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Enables handling and assembly without special ESD controls, reducing manufacturing overhead in high-volume production lines. |
Applications
| Industrial Power Supply Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Providing stable 33 V reference for feedback loop in 48 V input DC-DC converters used in PLCs and motor drives. IC Role / Device Role / Timing Role: Two-terminal shunt voltage reference establishing error amplifier setpoint. Use Value: ±2% tolerance and 10 Ω ZZ ensure output voltage accuracy remains within ±0.66 V across line/load/temperature variations. |
Use Scenario: Clamping transient spikes on 24 V rail during relay coil de-energization in factory automation I/O modules. IC Role / Device Role / Timing Role: Passive overvoltage clamp absorbing energy from inductive kickback. Use Value: 150 A surge rating and 3.5 V ΔVZ limit peak voltage to ≤36.5 V, protecting downstream 36 V-rated MOSFETs and controllers. |
| Temperature-Stable Sensor Bias | Programmable Threshold Detector |
Use Scenario: Biasing platinum RTD bridges in HVAC temperature transmitters operating from –40 °C to +85 °C ambient. IC Role / Device Role / Timing Role: Precision voltage source for constant-current excitation of resistive sensors. Use Value: Low ΔVZ (3.5 V) and wide operating range (–65 °C to +150 °C) minimize sensor offset drift across temperature extremes. |
Use Scenario: Setting trip threshold for comparator-based brown-out detection in embedded microcontroller power monitors. IC Role / Device Role / Timing Role: Stable reference input to comparator's non-inverting input. Use Value: Tight ±2% tolerance eliminates need for external trimming potentiometer, reducing BOM count and calibration steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5364B | Same 33 V nominal, but ±5% tolerance (B suffix) and higher ZZ (10 Ω vs. 10 Ω - identical spec, but B-grade may exhibit wider lot-to-lot ZZ distribution) | Acceptable where ±5% reference accuracy suffices; not suitable for systems requiring tighter than ±3% regulation. | Select 1N5364B only if cost sensitivity outweighs tolerance requirements and no recalibration is planned. |
| MMSZ5256ET1G | Surface-mount SOD-123 package, 33 V ±5%, 500 mW rating, ZZ = 35 Ω - significantly lower power and higher impedance than 1N5364CE3/TR8 | Only viable for low-power signal-level referencing; cannot replace 1N5364CE3/TR8 in 5 W power regulation roles. | Choose MMSZ5256ET1G only for space-constrained PCBs where dissipation stays below 0.5 W and regulation linearity is secondary. |
Compared with 1N5364B and MMSZ5256ET1G, the 1N5364CE3/TR8 uniquely delivers ±2% tolerance, 5 W capability, and 10 Ω ZZ in an axial-leaded T-18 package-making it irreplaceable for high-accuracy, high-power shunt regulation where thermal management and long-term stability are critical.
Availability
1N5364CE3/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, overvoltage protection circuits, and precision sensor biasing requiring stable component supply and RoHS compliance.
Supply support for 1N5364CE3/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 timing solutions for aerospace, defense, and industrial markets.
The 1N5364CE3/TR8 belongs to Microsemi's legacy 5 W axial Zener family, designed specifically for ruggedized voltage regulation in harsh-environment power systems where long-term parametric stability and surge resilience are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N5364CE3/TR8?
The 1N5364CE3/TR8 has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in its part number. This means its actual regulation voltage falls between 32.34 V and 33.66 V at 40 mA test current and 25 °C lead temperature. The tight tolerance supports precision reference applications without external trimming.
Does the 1N5364CE3/TR8 require dry packing or baking before use?
No, the 1N5364CE3/TR8 has IPC/JEDEC J-STD-020B moisture sensitivity Level 1, meaning it is not hygroscopic and does not require dry pack, baking, or floor-life tracking prior to soldering. This simplifies handling and reduces manufacturing overhead in high-volume assembly.
What is the maximum continuous power dissipation for the 1N5364CE3/TR8?
The 1N5364CE3/TR8 is rated for 5.0 W steady-state power dissipation at lead temperature (TL) < 25 °C with 3/8″ (10 mm) lead length from body. Derating applies above 25 °C - for example, at TL = 75 °C, maximum power drops to 3.75 W. On FR4 board, derated power is 1.47 W at TA = 25 °C.
How is polarity marked on the 1N5364CE3/TR8?
The 1N5364CE3/TR8 uses a cathode band to indicate polarity: the banded end is the cathode and must be held positive relative to the non-banded (anode) end during reverse-bias operation. This marking follows JEDEC DO-201AD standard and is visible on the epoxy body near one lead.
What does the "TR8" suffix indicate in 1N5364CE3/TR8?
The "TR8" suffix denotes tape-and-reel packaging per EIA-296 standard, with 8 mm carrier tape, 12 mm cover tape, and 800 units per reel. This format supports automated pick-and-place assembly and is distinct from bulk or ammo-pack options.
1N5364CE3/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):
- 33 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 23.8 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
1N5364CE3/TR8 FAQ
1.How can I place an order for 1N5364CE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5364CE3/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 1N5364CE3/TR8 reliable?
The price and inventory of 1N5364CE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5364CE3/TR8 is usually 5 days.
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1N5364CE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5364CE3/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 1N5364CE3/TR8?
For technical support, including 1N5364CE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5364CE3/TR8 requirements.
6.How does Aetrix verify that 1N5364CE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5364CE3/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 1N5364CE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5364CE3/TR8?
All 1N5364CE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5364CE3/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 1N5364CE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5364CE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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