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Microchip Technology 1N5364C/TR8
- Part No.:
- 1N5364C/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5364C/TR8.pdf
- Description:
- DIODE ZENER 33V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:3,540
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Product details
Overview
1N5364C/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, and 10 Ω maximum 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 1N5364C/TR8 datasheet, 1N5364C/TR8 pinout, 1N5364C/TR8 application, or 1N5364C/TR8 equivalent, key selection criteria include its 33 V Zener voltage, ±2% tolerance, 5 W steady-state power rating at 25 °C lead temperature, low 10 Ω ZZ, and T-18 axial package compatibility with through-hole PCB mounting.
Technical Context
The 1N5364C/TR8 functions as a precision shunt voltage regulator, maintaining a stable 33 V across its terminals when reverse-biased above its breakdown threshold. Its design supports operation at up to 150 °C junction temperature and features low thermal resistance (25 °C/W junction-to-lead at 10 mm lead length).
It exhibits minimal voltage variation (ΔVZ = 3.5 V) between 10% and 50% of maximum Zener current (IZM = 150 mA), and withstands non-repetitive 8.3 ms surge currents up to 170 A - critical for transient suppression in industrial power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 33 V nominal, ±2% tolerance - ensures tight regulation for feedback sensing in switching power supplies. |
| Test Current (IZT) | 40 mA - defines operating point where VZ and ZZ are specified; typical bias current for stable regulation. |
| Dynamic Impedance (ZZ) | 10 Ω max at IZT - low impedance maintains voltage stability under varying load current. |
| Max Regulator Current (IZM) | 150 mA - maximum continuous DC current at 25 °C lead temperature with adequate heat sinking. |
| Power Dissipation (PD) | 5.0 W at TL = 25 °C (3/8″ lead length) - defines thermal limit before derating begins. |
| Voltage Regulation (ΔVZ) | 3.5 V - difference between VZ measured at 15 mA and 75 mA, indicating regulation linearity. |
| Surge Current (IZSM) | 170 A peak (8.3 ms half-sine) - enables robust clamping of short-duration transients. |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-201AD standard; cathode indicated by band; RoHS-compliant matte-tin plated leads; weight 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node | Connected to circuit ground or lower-potential rail; forms return path during Zener conduction. |
| Cathode | Zener regulation terminal / Input reference node | Banded end; connected to unregulated input or voltage node requiring stabilization at 33 V. |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables precise voltage setting without post-assembly trimming in regulated DC-DC feedback paths. |
| Moisture sensitivity Level 1 (IPC/JEDEC J-STD-020B) | Eliminates dry-pack requirement and bake-out prior to assembly - reduces manufacturing overhead. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Supports handling and assembly in standard environments without special ESD controls. |
| High surge current capability (170 A, 8.3 ms) | Provides intrinsic transient overvoltage protection without external TVS stacking. |
| Low thermal resistance (25 °C/W junction-to-lead) | Allows reliable 5 W operation with minimal heatsinking - suitable for compact power supply designs. |
Applications
| Switching Power Supply Feedback | Industrial Overvoltage Clamp |
|---|---|
Use Scenario: Used in the optocoupler feedback network of an isolated 48 V output flyback converter to regulate output voltage within ±1%. IC Role / Device Role: Precision shunt reference providing stable 33 V reference to TL431-like control IC or optocoupler LED drive. Use Value: ±2% VZ tolerance and low ΔVZ ensure consistent regulation across line/load/temperature variations. | Use Scenario: Placed across 24 V DC bus in PLC I/O module to clamp surges exceeding 36 V during inductive load switching. IC Role / Device Role: Passive overvoltage protector absorbing energy from L·di/dt transients on industrial control lines. Use Value: 170 A surge rating and 5 W steady-state dissipation enable single-device clamping without parallel devices or fusing. |
| Programmable Voltage Monitor | Reference for Analog Front-End |
Use Scenario: Biasing comparator input in battery management system to trigger undervoltage lockout at 33 V threshold. IC Role / Device Role: Stable voltage threshold generator referenced to system ground for discrete monitoring circuits. Use Value: Tight 33 V ±2% tolerance eliminates calibration step; low ZZ prevents threshold drift under varying comparator input bias. | Use Scenario: Providing reference voltage to 12-bit ADC driver stage in motor control analog signal chain. IC Role / Device Role: Low-noise, stable DC reference source for precision gain-setting and offset compensation. Use Value: Minimal voltage drift (<0.4 mV/°C typical) and low dynamic impedance maintain ADC full-scale accuracy across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5364B/TR8 | ±5% tolerance (B suffix), otherwise identical electrical specs and package | Acceptable where tighter regulation not required; lower cost in high-volume industrial power supplies | Select when ±5% VZ meets system margin requirements and cost optimization is prioritized. |
| MMSZ5256ET1G | Surface-mount SOD-123 package, 500 mW rating, 33 V ±5%, 17 Ω ZZ | Not suitable for 5 W continuous dissipation; limited to low-power bias/reference roles | Choose only for space-constrained PCBs where power dissipation ≤500 mW and axial mounting is prohibited. |
Compared with 1N5364B/TR8, the 1N5364C/TR8 offers tighter voltage control essential for precision feedback, while MMSZ5256ET1G trades power capability for miniaturization - making the 1N5364C/TR8 optimal for robust, through-hole 33 V regulation where accuracy and thermal resilience are critical.
Availability
1N5364C/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, programmable logic controller (PLC) protection circuits, and analog voltage reference designs requiring stable component supply and long-term obsolescence mitigation.
Supply support for 1N5364C/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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The 1N53xxB/C series was designed for ruggedized voltage regulation in harsh-environment power systems - emphasizing wide temperature range, surge resilience, and JEDEC-standardized axial packaging for legacy and new industrial designs.
FAQ
What is the Zener voltage tolerance of the 1N5364C/TR8?
The 1N5364C/TR8 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix per Microsemi's documentation. This means its measured VZ at 40 mA test current falls within 32.34 V to 33.66 V at 25 °C lead temperature. The 1N5364C/TR8 achieves this tighter tolerance via post-process screening, distinguishing it from the ±5% 1N5364B/TR8 variant.
Can the 1N5364C/TR8 be used in surface-mount designs?
No - the 1N5364C/TR8 uses a T-18 axial-leaded package (JEDEC DO-201AD) and requires through-hole mounting. For surface-mount equivalents, Microsemi offers the SMBJ5364B series in SMB package, but no C-suffix (±2%) SMT version is documented for the 1N5364C/TR8. The 1N5364C/TR8 must be mounted with 10 mm lead length for rated 5 W operation.
What is the maximum continuous Zener current for the 1N5364C/TR8?
The maximum continuous Zener current (IZM) for the 1N5364C/TR8 is 150 mA when operated at 25 °C lead temperature with adequate heat sinking (3/8″ lead length). At higher ambient temperatures or without heat sinking, derating applies per Figure 1 in the datasheet - e.g., ~1.47 W at 25 °C ambient on FR4 board, limiting IZM to ~44 mA under those conditions.
Does the 1N5364C/TR8 require moisture preconditioning before reflow?
No - the 1N5364C/TR8 has IPC/JEDEC moisture sensitivity Level 1 classification, meaning it may be stored and assembled indefinitely at standard factory conditions without dry packing or baking. Its void-free epoxy body and RoHS-compliant plating meet MIL-STD-750 solderability requirements, supporting standard 260 °C/10 s reflow profiles.
How does the 1N5364C/TR8 compare to the 1N4733A in terms of power and regulation?
The 1N5364C/TR8 is a 5 W device with 33 V ±2% regulation and 10 Ω dynamic impedance, whereas the 1N4733A is a 1 W, 33 V ±5% Zener with ~10 Ω ZZ but significantly lower IZM (≈91 mA) and no specified surge rating. The 1N5364C/TR8 supports higher continuous power, better thermal performance (25 °C/W vs. ~100 °C/W), and robust 170 A transient handling - making it suitable for demanding industrial applications where the 1N4733A would thermally saturate.
1N5364C/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
1N5364C/TR8 FAQ
1.How can I place an order for 1N5364C/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5364C/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 1N5364C/TR8 reliable?
The price and inventory of 1N5364C/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5364C/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5364C/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5364C/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5364C/TR8?
1N5364C/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5364C/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 1N5364C/TR8?
For technical support, including 1N5364C/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5364C/TR8 requirements.
6.How does Aetrix verify that 1N5364C/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5364C/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 1N5364C/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5364C/TR8?
All 1N5364C/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5364C/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 1N5364C/TR8 part is unused and in its original packaging.
Return procedure for 1N5364C/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5364C/TR8 Tags
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