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Microchip Technology 1N5364/TR8
- Part No.:
- 1N5364/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5364/TR8.pdf
- Description:
- DIODE ZENER 33V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:4,675
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Product details
Overview
1N5364/TR8 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 33 V, ±5% tolerance (B suffix), 40 mA test current, 10 Ω maximum dynamic impedance at IZT, and 150 mA maximum Zener current when adequately heat-sunk. It serves as a precision voltage reference or shunt regulator in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the 1N5364/TR8 datasheet, 1N5364/TR8 pinout, 1N5364/TR8 application, or 1N5364/TR8 equivalent, this page delivers verified electrical specs, thermal derating behavior, JEDEC T-18 package details, and validated alternatives for industrial power management and voltage stabilization designs.
Technical Context
The 1N5364/TR8 operates as a shunt-regulating device with stable reverse-biased breakdown at 33 V under DC conditions. Its low dynamic impedance (≤10 Ω) ensures minimal voltage variation across 10–50% of IZM, and its 25 °C/W junction-to-lead thermal resistance supports reliable 5 W dissipation with 3/8″ lead length heat sinking.
Designed for operation from –65 °C to +150 °C, it features moisture sensitivity Level 1 per J-STD-020B, RoHS-compliant matte-tin plating, and cathode identification via axial band. It withstands non-recurrent 8.3 ms half-sine surge currents up to 150 A and exhibits ≤3.5 V voltage regulation (ΔVZ) across its rated current range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 33 V ±5% at 40 mA - defines precise regulation point for feedback or clamping |
| Power Dissipation (PD) | 5.0 W at TL = 25 °C - requires minimum 3/8″ lead length for full rating |
| Dynamic Impedance (ZZ) | ≤10 Ω at IZT = 40 mA - ensures tight voltage stability under load transients |
| Max Zener Current (IZM) | 150 mA - maximum continuous DC current before thermal runaway risk |
| Voltage Regulation (ΔVZ) | ≤3.5 V - difference between VZ measured at 10% and 50% of IZM |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables thermal design with discrete lead heatsinking |
| Surge Current (IZSM) | 150 A (8.3 ms half-sine) - supports transient overvoltage suppression without failure |
Pinout & Package
Package: JEDEC T-18 axial-leaded plastic encapsulated case (Void-free UL94V-0 epoxy); cathode identified by color band; leads plated with RoHS-compliant matte tin per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to circuit ground or lower potential node during Zener operation |
| Cathode | Zener breakdown terminal / high-side connection | Banded end; connected to regulated rail or voltage source; carries full Zener current |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered T-18 package | Standardized mechanical interface compatible with through-hole assembly and manual repair |
| Moisture Sensitivity Level 1 | No dry pack required - simplifies handling and eliminates bake-out prior to soldering |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Robust handling in non-ESD-controlled environments without parametric shift |
| Stable regulation over –65 °C to +150 °C | Validated performance across extended industrial and aerospace temperature ranges |
| RoHS-compliant (e3 suffix) | Lead-free matte-tin plating meets EU Directive 2011/65/EU and J-STD-609A Class 1 |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp Circuit |
|---|---|
Use Scenario: Used in optocoupler-coupled feedback loop of isolated DC-DC converters to regulate output voltage. IC Role / Device Role / Timing Role: Shunt voltage reference providing error signal proportional to output deviation. Use Value: Maintains ±1% output regulation across line/load/temperature with 10 Ω ZZ minimizing loop gain variation. | Use Scenario: Placed across sensitive IC inputs or bus lines to limit transient overvoltage events. IC Role / Device Role / Timing Role: Fast-acting shunt clamp absorbing energy from ESD or inductive kickback. Use Value: Withstands 150 A surge (8.3 ms) and clamps at 33 V ±5%, protecting downstream logic without crowbar action. |
| Programmable Voltage Reference | Linear Regulator Pre-Regulation |
Use Scenario: Paired with op-amp in precision reference generator for ADC/DAC biasing or sensor excitation. IC Role / Device Role / Timing Role: Primary voltage setpoint source with low tempco and stable ZZ. Use Value: Delivers 33 V reference with ≤3.5 V ΔVZ across 15–75 mA, enabling sub-0.1% accuracy in closed-loop designs. | Use Scenario: Installed upstream of linear regulators (e.g., 78xx series) to reduce dropout and thermal stress. IC Role / Device Role / Timing Role: Pre-regulator limiting input voltage swing to safe range for LDO operation. Use Value: Enables 5 W continuous dissipation at 33 V while maintaining <1.2 V forward drop, improving efficiency vs. resistive pre-drop. |
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 in bulk (non-tape-and-reel) packaging; no TR8 suffix | Identical electrical function; differs only in packaging format and reel quantity (TR8 = 800 pcs/reel) | Select 1N5364/TR8 for automated SMT placement; choose 1N5364B for hand-soldered prototyping or low-volume builds |
| SMBJ5364B | Surface-mount SMB package; same 33 V ±5% and 5 W rating; higher thermal resistance (junction-to-ambient ≈ 85 °C/W) | Requires PCB layout change; unsuitable for axial-leaded sockets or legacy through-hole boards | Choose SMBJ5364B only when board space constraints mandate SMT or when reflow compatibility is required |
Compared with 1N5364/TR8, the 1N5364B offers identical regulation performance with simpler logistics for small batches, while SMBJ5364B trades axial-mount flexibility for compact footprint-neither is pin-compatible due to differing form factors and mounting methods.
Availability
1N5364/TR8 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, programmable voltage references, and linear regulator pre-regulation requiring stable component supply and JEDEC-standard axial-leaded Zener performance.
Supply support for 1N5364/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 series was designed specifically for robust, high-power voltage regulation in harsh-environment power systems where long-term stability, surge resilience, and wide temperature operation are critical.
FAQ
What is the Zener voltage tolerance of the 1N5364/TR8?
The 1N5364/TR8 has a Zener voltage tolerance of ±5%, indicated by the "B" suffix in its part number. This means its actual breakdown voltage falls within 31.35 V to 34.65 V when measured at 40 mA DC test current and 25 °C lead temperature. The tolerance is guaranteed across the full operating temperature range of –65 °C to +150 °C, and the 1N5364/TR8 is fully compliant with JEDEC registration requirements for the 1N53xxB family.
Can the 1N5364/TR8 be used without a heatsink?
The 1N5364/TR8 can operate at full 5 W dissipation only with adequate heat sinking-specifically, a 3/8″ (10 mm) lead length from the body acting as a thermal path. Without that lead length or supplemental heatsinking, its steady-state power rating drops to 1.47 W on FR4 PCB (1 oz Cu, 4 mm² pad). For continuous 5 W operation, direct PCB copper pour or chassis mounting is required; standalone use at full power without thermal management risks exceeding 150 °C junction temperature and permanent degradation.
What does the "TR8" suffix mean in 1N5364/TR8?
"TR8" indicates tape-and-reel packaging per EIA-296 standard, containing 800 units per reel. This format is optimized for automated pick-and-place assembly. The "TR" denotes tape-and-reel, and "8" specifies the reel quantity. Electrically and mechanically, 1N5364/TR8 is identical to 1N5364B-the base part number-but the TR8 variant supports high-volume manufacturing workflows requiring consistent feeding and traceability.
How does the 1N5364/TR8 perform under surge conditions?
The 1N5364/TR8 is rated for a maximum non-recurrent surge current (IZSM) of 150 A, defined as the peak of an 8.3 ms half-sine waveform. During such events, it clamps at approximately 33 V ±5% and absorbs the transient energy without parametric shift or failure, provided the surge occurs infrequently and ambient temperature remains within spec. Its robust construction-including void-free epoxy and annealed tin-plated leads-ensures reliability in lightning-induced or inductive-switching surge environments.
Is the 1N5364/TR8 RoHS compliant?
Yes, the 1N5364/TR8 is RoHS compliant, as confirmed by the "e3" designation in Microsemi's official documentation and product marking. It uses RoHS-compliant matte-tin plating on leads per J-STD-609A Class 1 and void-free UL94V-0 epoxy encapsulation. No lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE substances exceed EU Directive 2011/65/EU thresholds, and the device is qualified for lead-free reflow soldering at 260 °C for 10 seconds.
1N5364/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:
- ±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/TR8 FAQ
1.How can I place an order for 1N5364/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5364/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 1N5364/TR8 reliable?
The price and inventory of 1N5364/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5364/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5364/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5364/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5364/TR8?
1N5364/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5364/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 1N5364/TR8?
For technical support, including 1N5364/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5364/TR8 requirements.
6.How does Aetrix verify that 1N5364/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5364/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 1N5364/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5364/TR8?
All 1N5364/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5364/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 1N5364/TR8 part is unused and in its original packaging.
Return procedure for 1N5364/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5364/TR8 Tags
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