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Microchip Technology 1N5364A/TR12
- Part No.:
- 1N5364A/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5364A/TR12.pdf
- Description:
- DIODE ZENER 33V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:8,168
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Product details
Overview
1N5364A/TR12 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 33 V, ±10% tolerance (A suffix), 40 mA test current, and 10 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 1N5364A/TR12 datasheet, 1N5364A/TR12 pinout, 1N5364A/TR12 application, or 1N5364A/TR12 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (150 A), steady-state power derating on FR4, 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 mode. Its Zener voltage is specified at 40 mA dc test current (IZT) with measurement performed within 40 ±10 ms after current application, and it exhibits minimal voltage variation (ΔVZ = 3.5 V) between 10% and 50% of maximum Zener current.
The 1N5364A/TR12 uses a void-free thermosetting epoxy case (UL94V-0), cathode-indicating band polarity, and is rated for 260 °C soldering (10 s max). Thermal resistance is 25 °C/W junction-to-lead at 10 mm lead length, or 85 °C/W junction-to-ambient on FR4 with defined copper pad geometry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 33 V nominal, ±10% tolerance - defines regulated output voltage under specified test conditions |
| Test Current (IZT) | 40 mA dc - current at which VZ is measured; sets baseline operating point for regulation |
| Dynamic Impedance (ZZ) | 10 Ω max at IZT - determines small-signal voltage stability against load current changes |
| Max Surge Current (IZSM) | 150 A peak (8.3 ms half-sine) - supports transient overvoltage clamping without failure |
| Power Dissipation (PD) | 5.0 W at TL ≤ 25 °C (3/8″ lead length) - requires heat sinking above ambient for full-power operation |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables thermal design using lead conduction path for power dissipation |
| Reverse Leakage (IR) | 0.5 μA max at 26.4 V - ensures low standby power loss in high-impedance bias networks |
Pinout & Package
Package: Axial-leaded T-18 plastic case (void-free UL94V-0 epoxy), cathode indicated by colored band. Leads are tin-lead or RoHS-compliant annealed matte-tin plated, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded lead | Connected to lower-potential node; forward voltage ≤1.2 V @1.0 A ensures low-loss biasing |
| Cathode | Banded lead | Connected to regulated output node; must be held positive relative to anode for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener series | Ensures standardized mechanical dimensions, marking, and electrical test methodology across suppliers |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints during assembly |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces handling precautions and eliminates need for ESD-protective packaging in logistics |
| RoHS-compliant option (e3 suffix) | Meets EU Directive 2011/65/EU with matte-tin plating; no lead or hazardous substance restrictions |
| High surge current capability | Withstands 150 A non-recurrent 8.3 ms half-sine surges - suitable for input-stage transient suppression |
Applications
| Industrial Power Supply Reference | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Stable 33 V reference in linear regulator feedback loop of 48 V telecom power module. IC Role / Device Role / Timing Role: Voltage reference element providing stable setpoint for error amplifier comparison. Use Value: ±10% VZ tolerance and 3.5 V ΔVZ ensure consistent regulation across temperature and line/load variations. | Use Scenario: Clamping circuit protecting downstream DC-DC converter input from 60 V transients. IC Role / Device Role / Timing Role: Shunt overvoltage protector diverting surge current when input exceeds 33 V. Use Value: 150 A surge rating and low ZZ enable reliable clamping without thermal runaway during repeated transients. |
| Programmable Voltage Monitor | Field-Serviceable Calibration Standard |
Use Scenario: Threshold detector in battery management system comparing cell stack voltage against 33 V trip point. IC Role / Device Role / Timing Role: Precision voltage threshold element triggering comparator when monitored voltage exceeds VZ. Use Value: Low 0.5 μA leakage at 26.4 V minimizes loading on high-impedance sense nodes. | Use Scenario: Portable calibration source for field technicians verifying multimeter accuracy at 33 V range. IC Role / Device Role / Timing Role: Stable, self-contained voltage standard traceable to JEDEC registration. Use Value: Axial-leaded T-18 package allows direct insertion into test fixtures; Level 1 moisture rating simplifies storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5364B/TR12 | ±5% VZ tolerance (vs. ±10% for 1N5364A/TR12); otherwise identical electrical specs and package | Higher voltage accuracy required in closed-loop feedback or precision reference designs | Select 1N5364B/TR12 when tighter regulation stability is needed; same thermal and surge performance |
| MMBZ5263B-TP | Surface-mount SOT-23 package; 33 V, ±5%, 200 mW - not power-compatible with 5 W rating of 1N5364A/TR12 | Low-power portable electronics where board space and weight constrain axial-leaded devices | Use MMBZ5263B-TP only in sub-200 mW applications; cannot replace 1N5364A/TR12 in 5 W power roles |
Compared with 1N5364B/TR12, the 1N5364A/TR12 trades voltage accuracy for cost and availability in legacy industrial systems; versus MMBZ5263B-TP, it delivers 25× higher power handling but requires axial mounting and larger PCB real estate.
Availability
1N5364A/TR12 is available at Aetrix Electronics and suitable for industrial power supply reference, overvoltage protection circuits, and programmable voltage monitor applications requiring stable component supply and long-term obsolescence management.
Supply support for 1N5364A/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, RF, and timing solutions for aerospace, defense, and industrial markets.
The 1N53xxA/B series was designed for robust, high-power voltage regulation in harsh-environment power systems where thermal stability, surge resilience, and JEDEC-standardized interchangeability are critical.
FAQ
What is the Zener voltage tolerance of the 1N5364A/TR12?
The 1N5364A/TR12 has a nominal Zener voltage of 33 V with ±10% tolerance, as indicated by the "A" suffix per Microsemi's documentation. This means the actual VZ falls between 29.7 V and 36.3 V at 40 mA test current and 25 °C lead temperature. The tolerance is verified per JEDEC registration and applies across the full operating temperature range of −65 °C to +150 °C.
Can the 1N5364A/TR12 be used in surface-mount designs?
No - the 1N5364A/TR12 is an axial-leaded T-18 package device and is not compatible with surface-mount assembly processes. For SMT equivalents, Microsemi offers the SMBJ5364B (DO-214AB) and SMBG5364B (DO-214AA) series. These share the same 33 V, ±10% specification but require requalification for thermal performance and layout due to different package geometry and thermal paths.
What is the maximum surge current rating for the 1N5364A/TR12?
The 1N5364A/TR12 is rated for a maximum non-recurrent surge current (IZSM) of 150 A, defined as the peak value of an 8.3 ms half-sine waveform. This rating assumes proper lead termination and adequate PCB copper area for heat dissipation. Exceeding this value, even briefly, risks irreversible junction damage and must be validated against actual system-level surge waveforms.
How does the thermal resistance of the 1N5364A/TR12 affect its power handling on a PCB?
The 1N5364A/TR12 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W when leads are trimmed to 10 mm from the body. On FR4 with 4 mm² copper pads and 1 mm × 25 mm traces, its junction-to-ambient RθJA rises to 85 °C/W, limiting steady-state power to 1.47 W at 25 °C ambient. Full 5 W operation requires external heat sinking via the leads.
Is the 1N5364A/TR12 RoHS compliant?
Yes - the 1N5364A/TR12 is RoHS compliant when ordered with the "e3" suffix (e.g., 1N5364A/TR12e3), indicating annealed matte-tin plating per EU Directive 2011/65/EU. Standard 1N5364A/TR12 units may use tin-lead plating unless otherwise specified; always verify the full orderable part number and associated compliance documentation before design-in.
1N5364A/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:
- ±10%
- 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
1N5364A/TR12 FAQ
1.How can I place an order for 1N5364A/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5364A/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 1N5364A/TR12 reliable?
The price and inventory of 1N5364A/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5364A/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5364A/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5364A/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5364A/TR12?
1N5364A/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5364A/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 1N5364A/TR12?
For technical support, including 1N5364A/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5364A/TR12 requirements.
6.How does Aetrix verify that 1N5364A/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5364A/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 1N5364A/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5364A/TR12?
All 1N5364A/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5364A/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 1N5364A/TR12 part is unused and in its original packaging.
Return procedure for 1N5364A/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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