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Microchip Technology 1N5364E3/TR12
- Part No.:
- 1N5364E3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5364E3/TR12.pdf
- Description:
- DIODE ZENER 33V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:5,691
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Product details
Overview
1N5364E3/TR12 from Microsemi is a 5 W axial-leaded silicon Zener diode with a nominal regulation voltage of 33 V, ±5% tolerance (B-suffix equivalent), 40 mA test current, 10 Ω dynamic impedance at IZT, and 150 mA maximum Zener current (IZM) when adequately heat-sunk. It operates across –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in industrial power supplies.
For engineers reviewing the 1N5364E3/TR12 datasheet, 1N5364E3/TR12 pinout, 1N5364E3/TR12 application, or 1N5364E3/TR12 equivalent, key selection criteria include Zener voltage stability under varying load current, thermal resistance (25 °C/W junction-to-lead), surge current rating (150 A), low voltage regulation drift (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 mode, with Zener voltage defined at 40 mA test current and specified with ±5% tolerance. Its low dynamic impedance (10 Ω) ensures minimal voltage variation across 10–50% of IZM, and its 25 °C/W thermal resistance enables stable 5 W dissipation with 3/8″ lead length heat sinking.
The 1N5364E3/TR12 features a void-free thermosetting epoxy T-18 package rated UL94V-0, cathode band polarity marking, and 0.7 g mass. It withstands 260 °C soldering for 10 s and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 33 V nominal, ±5% tolerance - defines stable regulation point for feedback loops and reference circuits |
| Test Current (IZT) | 40 mA - operating point where VZ and ZZ are guaranteed per JEDEC spec |
| Dynamic Impedance (ZZ) | 10 Ω max at IZT - ensures <1 V deviation over 10–50% IZM load range |
| Max Zener Current (IZM) | 150 mA at TL ≤ 25 °C - supports 5 W continuous dissipation with proper lead heatsinking |
| Surge Current (IZSM) | 150 A peak (8.3 ms half-sine) - handles transient overvoltage events without failure |
| Voltage Regulation (ΔVZ) | 3.5 V max - difference between VZ measured at 10% and 50% of IZM, indicating regulation linearity |
| Thermal Resistance | 25 °C/W junction-to-lead (3/8″ lead length) - enables predictable temperature rise under full power |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case (UL94V-0 epoxy), cathode indicated by colored band; leads are RoHS-compliant annealed matte-tin plated per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-biased reference terminal | Connected to circuit ground or lower-potential node; carries full Zener current during regulation |
| Cathode | Regulated output terminal | Banded end; maintains stable 33 V relative to anode under reverse bias; must be held positive w.r.t. anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener series | Guaranteed mechanical and electrical interchangeability per 1N53xxB standard |
| RoHS-compliant (e3 suffix) | Lead-free matte-tin plating compatible with modern reflow and wave soldering processes |
| Level 1 moisture sensitivity | No dry pack or baking required before assembly - reduces manufacturing overhead |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - eliminates need for special handling in production |
| High surge current capability | 150 A non-recurrent half-sine (8.3 ms) - protects downstream circuitry from lightning or inductive kick |
Applications
| Industrial Power Supply Regulation | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Stabilizing feedback reference in 48 V telecom DC-DC converters with wide input transients. IC Role / Device Role / Timing Role: Two-terminal shunt voltage reference providing precise 33 V setpoint for error amplifier input. Use Value: Maintains ±0.5 V regulation over 20–120 mA load range due to low ZZ and tight ΔVZ, improving output accuracy. |
Use Scenario: Clamping induced surges on 24 V control bus in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Passive crowbar element diverting transient energy above 33 V to ground before IC damage occurs. Use Value: Absorbs 150 A surge (8.3 ms) without degradation, enabling robust Class III surge immunity per IEC 61000-4-5. |
| Programmable Voltage Reference | Temperature-Stable Bias Generator |
Use Scenario: Setting threshold in analog comparator circuits for battery charge termination at 33 V. IC Role / Device Role / Timing Role: Primary voltage reference source with minimal drift over –40 °C to +85 °C ambient. Use Value: Delivers <±30 mV total drift across full temperature range due to low TCZ and stable ZZ. |
Use Scenario: Generating stable bias current for op-amp input stages in high-reliability test equipment. IC Role / Device Role / Timing Role: Fixed-voltage drop element establishing repeatable quiescent current in discrete bias networks. Use Value: Enables <0.5% current variation over 10–100 mA operating range via predictable VZ vs. IZ curve. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5364B | Same 33 V, ±5%, 5 W rating but non-RoHS tin-lead plating; no e3 suffix | Not suitable for lead-free assembly; requires Pb-based solder process | Select only if legacy Pb-process compatibility is mandatory and RoHS exemption applies |
| MMSZ5256ET1G | Surface-mount SOD-123 package; 33 V, ±5%, 500 mW - not power-equivalent | Cannot replace 1N5364E3/TR12 in 5 W applications without parallel devices or derating | Use only for low-power signal-level references where board space is constrained and thermal design permits |
Compared with 1N5364B and MMSZ5256ET1G, the 1N5364E3/TR12 uniquely combines axial-leaded serviceability, full 5 W dissipation, RoHS compliance, and JEDEC-standardized mounting - making it optimal for industrial power designs requiring field-replaceable, high-energy clamping.
Availability
1N5364E3/TR12 is available at Aetrix Electronics and suitable for industrial power supply regulation, overvoltage protection clamp, and programmable voltage reference applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1N5364E3/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 radiation-hardened components for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for ruggedized 5 W Zener regulation in harsh-environment power systems - emphasizing thermal robustness, surge survivability, and JEDEC-standardized interchangeability.
FAQ
What is the Zener voltage tolerance of the 1N5364E3/TR12?
The 1N5364E3/TR12 has a nominal Zener voltage of 33 V with ±5% tolerance, consistent with the "B" suffix designation in the 1N53xxB family. This tolerance is verified at 40 mA test current and 25 °C lead temperature, and applies across the full operating temperature range of –65 °C to +150 °C per Microsemi's published electrical characteristics table.
Can the 1N5364E3/TR12 be used in surface-mount designs?
No - the 1N5364E3/TR12 uses an axial-leaded T-18 package and is not a surface-mount device. For SMT equivalents, Microsemi offers the SMBJ5364B (DO-214AA) and SMBG5364B (DO-214AB), both rated for 5 W and sharing identical 33 V/±5% specifications. The 1N5364E3/TR12 requires through-hole mounting with ≥3/8″ lead length for thermal management.
What is the maximum power dissipation of the 1N5364E3/TR12 at 70 °C ambient?
At 70 °C ambient on FR4 PCB (1 oz Cu, 4 mm² pads), the 1N5364E3/TR12 derates to approximately 2.9 W, calculated using its 85 °C/W junction-to-ambient thermal resistance and 150 °C max junction temperature. Full 5 W operation requires lead temperature ≤25 °C, achieved via heatsinking or short lead lengths per Figure 1 derating curve.
Does the 1N5364E3/TR12 meet RoHS requirements?
Yes - the "e3" suffix explicitly denotes RoHS compliance: matte-tin plating per MIL-STD-750 Method 2026, void-free UL94V-0 epoxy body, and full conformance to Directive 2011/65/EU. No lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE substances exceed threshold limits, and the device is qualified for lead-free reflow up to 260 °C for 10 seconds.
How does the voltage regulation (ΔVZ) specification impact circuit performance for the 1N5364E3/TR12?
The 1N5364E3/TR12 specifies ΔVZ = 3.5 V - the difference between Zener voltage measured at 10% and 50% of IZM (15 mA and 75 mA). This quantifies regulation linearity: a lower ΔVZ indicates tighter voltage stability across load changes. At 33 V nominal, this represents ~10.6% variation, which must be accounted for in precision reference designs using series resistors or active compensation.
1N5364E3/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
1N5364E3/TR12 FAQ
1.How can I place an order for 1N5364E3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5364E3/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 1N5364E3/TR12 reliable?
The price and inventory of 1N5364E3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5364E3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5364E3/TR12?
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1N5364E3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5364E3/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 1N5364E3/TR12?
For technical support, including 1N5364E3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5364E3/TR12 requirements.
6.How does Aetrix verify that 1N5364E3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5364E3/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 1N5364E3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5364E3/TR12?
All 1N5364E3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5364E3/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 1N5364E3/TR12 part is unused and in its original packaging.
Return procedure for 1N5364E3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5364E3/TR12 Tags
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