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Microchip Technology 1N5360/TR8
- Part No.:
- 1N5360/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5360/TR8.pdf
- Description:
- DIODE ZENER 25V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:9,591
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Product details
Overview
1N5360/TR8 from Microsemi is a 25 V, ±5% tolerance, 5 W axial-leaded silicon Zener diode optimized for voltage regulation in power supply feedback loops, overvoltage protection circuits, and precision reference applications. It delivers 50 mA test current (IZT), 4.0 Ω dynamic impedance (ZZ), and 110 mA maximum Zener current (IZM) at 25°C with thermal resistance of 25°C/W junction-to-lead.
For engineers reviewing the 1N5360/TR8 datasheet, 1N5360/TR8 pinout, 1N5360/TR8 application, or 1N5360/TR8 equivalent, this page provides verified electrical parameters, package dimensions, thermal derating behavior, RoHS-compliant plating details, and validated alternative parts for industrial power management and analog reference designs.
Technical Context
This Zener operates in reverse breakdown with cathode-banded polarity, requiring the banded end to be held positive relative to the anode. Its 25 V nominal Zener voltage is specified at 50 mA IZT with ±5% tolerance (B suffix), and exhibits 0.55 V voltage regulation (ΔVZ) between 10% and 50% of IZM.
The device uses void-free thermosetting epoxy encapsulation (UL94V-0), tin-lead or RoHS-compliant matte-tin plating, and achieves 25°C/W thermal resistance when leads are trimmed to 3/8" (10 mm) from body - enabling stable 5 W dissipation under controlled lead temperature conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25 V ±5% at 50 mA IZT - defines precise regulation point for feedback and clamping circuits |
| Power Dissipation | 5.0 W at TL = 25°C (3/8" lead length) - sets maximum continuous DC power handling with adequate heatsinking |
| Dynamic Impedance (ZZ) | 4.0 Ω at 50 mA - ensures minimal output voltage variation under load current changes |
| Max Reverse Current (IR) | 0.5 μA at VR = 19 V - guarantees low leakage in high-impedance bias/reference paths |
| Thermal Resistance | 25 °C/W junction-to-lead - enables accurate junction temperature estimation from measured lead temperature |
| Surge Current (IZSM) | 110 A (8.3 ms half-sine) - supports transient overvoltage suppression without failure |
| Operating Temperature | -65°C to +150°C - suitable for extended industrial and aerospace environments |
Pinout & Package
Package: Axial-leaded T-18 plastic case (JEDEC DO-204AL), void-free UL94V-0 epoxy body, cathode indicated by color band. Leads are tin-lead or RoHS-compliant 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 during Zener operation |
| Cathode | Reverse-biased reference terminal | Banded end; connected to regulated voltage node or error amplifier input in feedback loops |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Complies with industry-standard DO-204AL mechanical and electrical definitions |
| Moisture Sensitivity Level 1 | No dry pack required - simplifies SMT reflow and storage logistics |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - eliminates need for special ESD handling in assembly |
| High surge current rating | 110 A peak (8.3 ms) - withstands line transients and inductive kickback events |
| Stable voltage regulation | ΔVZ = 0.55 V across 10–50% IZM - maintains accuracy under varying load conditions |
Applications
| Switching Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback or forward converter feedback networks using optocoupler-coupled error amplifiers. IC Role / Device Role / Timing Role: Precision voltage reference providing stable 25 V threshold for error signal generation. Use Value: Enables tight output regulation (±1%) across line/load/temperature with minimal external components. |
Use Scenario: Clamps transient voltages on DC bus lines exceeding safe operating limits in motor drives or battery systems. IC Role / Device Role / Timing Role: Fast-acting shunt regulator that diverts excess energy to ground before downstream ICs are damaged. Use Value: Absorbs 110 A surge (8.3 ms) without degradation, protecting MOSFETs and controllers from overvoltage stress. |
| Programmable Reference Source | Industrial Sensor Excitation |
Use Scenario: Provides stable excitation voltage for bridge-based pressure or strain sensors in process control instrumentation. IC Role / Device Role / Timing Role: Low-drift, low-noise 25 V reference source for ratiometric sensor biasing. Use Value: Delivers 0.55 V regulation over 5–50 mA range, minimizing measurement error due to supply variation. |
Use Scenario: Supplies fixed bias voltage to analog front-end circuits in ruggedized environmental monitoring nodes. IC Role / Device Role / Timing Role: Robust voltage reference operating continuously across -65°C to +150°C ambient range. Use Value: Maintains regulation integrity in extreme thermal environments where polymer-based references fail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5360B | Same 25 V ±5%, but in bulk packaging (no tape-and-reel); identical electrical specs and T-18 package | Preferred for manual prototyping or low-volume hand-soldered assemblies | Select 1N5360/TR8 for automated SMT placement; choose 1N5360B for bench testing or small-batch builds |
| MMSZ5254B-TP | 24 V ±5%, 500 mW SOD-123 surface-mount package; lower power, smaller footprint, higher ZZ (30 Ω) | Suitable only for low-current biasing or space-constrained PCBs - not a direct replacement for 5 W loads | Use MMSZ5254B-TP only when board area is critical and power demand ≤300 mW; retain 1N5360/TR8 for >1 W regulation |
Compared with 1N5360B and MMSZ5254B-TP, the 1N5360/TR8 uniquely combines JEDEC-standard axial packaging, 5 W power handling, and tape-and-reel compatibility - making it optimal for high-reliability industrial power supplies requiring automated assembly and robust thermal performance.
Availability
1N5360/TR8 is available at Aetrix Electronics and suitable for switching power supply feedback, overvoltage protection clamp, and programmable reference source applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1N5360/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, RF, and timing solutions for aerospace, defense, and industrial markets.
The 1N53xxB series was designed specifically for ruggedized voltage regulation in mission-critical power systems - emphasizing thermal stability, surge resilience, and JEDEC-standard mechanical consistency.
FAQ
What is the Zener voltage tolerance of the 1N5360/TR8?
The 1N5360/TR8 has a nominal Zener voltage of 25 V with ±5% tolerance, as indicated by the "B" suffix in its full designation. This means the actual measured VZ falls between 23.75 V and 26.25 V at 50 mA test current and 25°C lead temperature. The tolerance is guaranteed per JEDEC specification and applies across the full operating temperature range of -65°C to +150°C.
Does the 1N5360/TR8 require dry packing for moisture sensitivity?
No, the 1N5360/TR8 has IPC/JEDEC J-STD-020B Moisture Sensitivity Level 1 classification, meaning it is not moisture-sensitive and does not require dry pack or baking prior to soldering. Its void-free thermosetting epoxy encapsulation inherently prevents moisture ingress, supporting standard reflow profiles without preconditioning.
What is the maximum steady-state power dissipation for the 1N5360/TR8 on a standard FR4 PCB?
When mounted on a standard FR4 PCB (1 oz copper, 4 mm² pads, 1 mm track width, 25 mm length), the 1N5360/TR8 is rated for 1.47 W steady-state power dissipation at 25°C ambient temperature. This reflects its 85°C/W junction-to-ambient thermal resistance under those specific layout conditions - significantly lower than its 5 W rating at controlled lead temperature.
Can the 1N5360/TR8 be used in place of the 1N5360B?
Yes, the 1N5360/TR8 is functionally and electrically identical to the 1N5360B, differing only in packaging: TR8 denotes tape-and-reel (EIA-296 standard) for automated placement, while 1N5360B is supplied in bulk. Both share identical Zener voltage, tolerance, power rating, thermal resistance, and mechanical dimensions in the T-18 axial package.
What is the surge current rating of the 1N5360/TR8 and how is it defined?
The 1N5360/TR8 has a maximum non-recurrent surge current (IZSM) rating of 110 A, defined as the peak value of an 8.3 ms half-sine waveform. This rating is validated per JEDEC standards and reflects the device's ability to absorb transient energy without parametric shift or catastrophic failure - critical for protecting downstream circuitry from line surges or inductive switching spikes.
1N5360/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):
- 25 V
- Tolerance:
- ±20%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 4 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 18 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
1N5360/TR8 FAQ
1.How can I place an order for 1N5360/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5360/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 1N5360/TR8 reliable?
The price and inventory of 1N5360/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5360/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5360/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5360/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5360/TR8?
1N5360/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5360/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 1N5360/TR8?
For technical support, including 1N5360/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5360/TR8 requirements.
6.How does Aetrix verify that 1N5360/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5360/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 1N5360/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5360/TR8?
All 1N5360/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5360/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 1N5360/TR8 part is unused and in its original packaging.
Return procedure for 1N5360/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5360/TR8 Tags
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