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Microchip Technology 1N5364/TR12
- Part No.:
- 1N5364/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5364/TR12.pdf
- Description:
- DIODE ZENER 33V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:5,467
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Product details
Overview
1N5364/TR12 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 33 V, ±5% tolerance (B suffix), 10 Ω maximum dynamic impedance at 40 mA test current, and 150 mA maximum Zener current when adequately heat-sunk. 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 1N5364/TR12 datasheet, 1N5364/TR12 pinout, 1N5364/TR12 application, or 1N5364/TR12 equivalent, this page delivers verified electrical specs, thermal derating behavior, JEDEC T-18 package details, RoHS-compliant plating, and validated alternative parts for voltage regulation design.
Technical Context
This device functions as a two-terminal shunt regulator, maintaining stable output voltage across wide current (10–150 mA) and temperature (–65 °C to +150 °C) ranges. Its low 25 °C/W junction-to-lead thermal resistance enables reliable 5 W operation with minimal heatsinking at 3/8″ lead length.
Zener voltage is specified at 40 ±10 ms after DC current application, with dynamic impedance measured using 1 kHz AC modulation (10% of IZT). Voltage regulation ΔVZ = 3.5 V reflects difference between voltages at 10% and 50% of IZM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 33 V ±5% - Stable regulation point for 24–48 V system references. |
| Test Current (IZT) | 40 mA - Operating point where VZ and ZZ are guaranteed per JEDEC spec. |
| Dynamic Impedance (ZZ) | 10 Ω max - Low AC impedance ensures minimal voltage shift under load transients. |
| Max Zener Current (IZM) | 150 mA - Maximum continuous DC current at 25 °C lead temperature with proper heatsinking. |
| Power Dissipation | 5.0 W at TL ≤ 25 °C - Rated steady-state power with 3/8″ (10 mm) lead length from body. |
| Thermal Resistance | 25 °C/W junction-to-lead - Enables direct thermal path to PCB copper or chassis for high-current operation. |
| Reverse Leakage (IR) | 0.5 μA max at 25.1 V - Ensures low standby power loss in high-impedance bias networks. |
Pinout & Package
JEDEC T-18 axial-leaded plastic package with cathode indicated by color band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026. Case is void-free UL94V-0 thermosetting epoxy; weight = 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential node; forward VF ≤ 1.2 V @ 1.0 A ensures low-loss biasing. |
| Cathode | Current exit terminal during reverse-biased Zener operation | Banded end; connected to regulated voltage rail; polarity must be observed for correct shunt regulation. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener series | Guaranteed interchangeability and standardized testing per 1N53xxB family specifications. |
| Moisture sensitivity Level 1 | No dry pack required - simplifies handling and eliminates bake-out prior to assembly. |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - safe for manual handling without special grounding. |
| High surge current rating | 150 A peak (8.3 ms half-sine) - withstands transient overvoltage events in power rails. |
| RoHS compliant option | e3 suffix available - meets environmental compliance without performance trade-offs. |
Applications
| Industrial Power Supply Reference | Overvoltage Clamp for 24 V Systems |
|---|---|
|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converters supplying PLC I/O modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 33 V reference for TL431-based error amplifiers. Use Value: Maintains ±0.5% output regulation over –40 °C to +85 °C ambient due to low ΔVZ (3.5 V) and tight 5% VZ tolerance. |
Use Scenario: Protecting CAN transceiver inputs against load-dump surges in factory automation controllers. IC Role / Device Role / Timing Role: Passive overvoltage clamp limiting rail voltage to 33 V during 12–24 V bus transients. Use Value: Absorbs up to 5 W continuously and 150 A surge (8.3 ms), preventing damage to downstream 3.3 V logic interfaces. |
| Programmable Logic Controller (PLC) Input Protection | Field Instrumentation Signal Conditioning |
|
Use Scenario: Safeguarding analog input channels from wiring faults and EMI-induced spikes in modular PLC backplanes. IC Role / Device Role / Timing Role: Bidirectional clamping element (with series resistor) limiting reverse and forward excursions on 0–10 V sensor inputs. Use Value: Withstands repeated 100 V transients while maintaining <0.5 μA leakage at 25.1 V, preserving signal integrity. |
Use Scenario: Providing stable bias for 4–20 mA loop-powered temperature transmitters in oil & gas field devices. IC Role / Device Role / Timing Role: Precision Zener reference establishing fixed 33 V supply for op-amp and ADC circuitry. Use Value: Delivers <10 Ω dynamic impedance and <3.5 V regulation spread, enabling 12-bit measurement accuracy over full temperature range. |
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 ±5%, but in bulk (non-tape-and-reel) packaging; no TR suffix. | Identical electrical performance; differs only in packaging format and reel quantity (TR12 = 12,000 pcs/reel). | Select 1N5364/TR12 for automated SMT placement; choose 1N5364B for hand-soldered prototyping or low-volume repair. |
| MMBZ5265B | Surface-mount SOT-23 package; 33 V ±5%, but rated at 0.5 W (not 5 W); ZZ = 17 Ω max. | Not suitable for high-power clamping; limited to low-current bias/reference use in space-constrained designs. | Use MMBZ5265B only where board space is critical and power dissipation remains below 300 mW; retain 1N5364/TR12 for >1 W applications. |
Compared with 1N5364B and MMBZ5265B, the 1N5364/TR12 uniquely combines 5 W power handling, axial-leaded through-hole mounting, JEDEC-standardized reliability, and tape-and-reel compatibility-making it optimal for industrial power and protection circuits requiring robust, production-ready Zener regulation.
Availability
1N5364/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, overvoltage protection circuits, and programmable logic controller (PLC) input conditioning requiring stable component supply and long-term manufacturability.
Supply support for 1N5364/TR12 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 specifically for ruggedized voltage regulation in harsh-environment power systems, emphasizing thermal robustness, surge immunity, and JEDEC-standardized interchangeability.
FAQ
What is the Zener voltage tolerance for 1N5364/TR12?
The 1N5364/TR12 has a ±5% Zener voltage tolerance, confirmed by the "B" suffix in its part number per Microsemi's datasheet. This means its nominal 33 V regulation falls within 31.35 V to 34.65 V at 40 mA test current and 25 °C lead temperature. The tolerance is guaranteed across the full operating temperature range of –65 °C to +150 °C, making the 1N5364/TR12 suitable for precision reference applications where stability matters.
Can 1N5364/TR12 be used without a heatsink?
Yes, the 1N5364/TR12 can operate without an external heatsink at reduced power levels. At 25 °C ambient on FR4 with 4 mm² copper pads, its steady-state power rating drops to 1.47 W. For full 5 W operation, Microsemi specifies a 3/8″ (10 mm) lead length from the body and lead temperature (TL) ≤ 25 °C - achieved via chassis mounting or extended copper pours. Derating curves in Figure 1 of the datasheet define safe operating limits based on TL or TA, and the 1N5364/TR12 must be applied accordingly.
What does the "TR12" suffix mean in 1N5364/TR12?
The "TR12" suffix indicates tape-and-reel packaging per EIA-296 standard, containing 12,000 units per reel. This format supports automated pick-and-place assembly in high-volume manufacturing. The base device remains electrically and mechanically identical to the bulk-packaged 1N5364B; only the packaging method and reel quantity differ. The "TR" designation is optional and added to the base part number to denote reel configuration - the 1N5364/TR12 retains all specifications of the 1N5364B, including ±5% tolerance, 5 W rating, and T-18 package.
Is 1N5364/TR12 RoHS compliant?
Yes, the 1N5364/TR12 is RoHS compliant when ordered with the "e3" suffix (e.g., 1N5364B-e3/TR12). Per Microsemi documentation, RoHS-compliant versions feature annealed matte-tin plating instead of tin-lead, meeting J-STD-020B moisture sensitivity Level 1 requirements without dry pack. Standard 1N5364/TR12 may ship with legacy tin-lead plating unless explicitly ordered with e3 - always verify the full orderable part number and datasheet revision to confirm compliance status for your build.
How does 1N5364/TR12 compare to 1N4733A in terms of power and regulation?
The 1N5364/TR12 is a 5 W Zener with 33 V ±5% regulation and 10 Ω dynamic impedance, whereas the 1N4733A is a 1 W device with same nominal voltage but ±5% tolerance and higher 15 Ω ZZ. The 1N5364/TR12 supports 150 mA IZM versus 76 mA for the 1N4733A, and its 25 °C/W thermal resistance enables significantly higher sustained power dissipation. Both share T-18 packaging, but the 1N5364/TR12 is engineered for industrial-grade reliability, surge immunity, and tighter regulation consistency - making it the preferred choice for demanding power supply and protection roles where the 1N4733A would thermally saturate.
1N5364/TR12 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:
- ±20%
- 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
1N5364/TR12 FAQ
1.How can I place an order for 1N5364/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5364/TR12 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 1N5364/TR12 reliable?
The price and inventory of 1N5364/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5364/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5364/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5364/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5364/TR12?
1N5364/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5364/TR12 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 1N5364/TR12?
For technical support, including 1N5364/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5364/TR12 requirements.
6.How does Aetrix verify that 1N5364/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5364/TR12 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 1N5364/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5364/TR12?
All 1N5364/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5364/TR12, 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 1N5364/TR12 part is unused and in its original packaging.
Return procedure for 1N5364/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5364/TR12 Tags
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