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Microchip Technology 1N5360B/TR8
- Part No.:
- 1N5360B/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5360B/TR8.pdf
- Description:
- DIODE ZENER 25V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:7,920
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Product details
Overview
1N5360B/TR8 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 25 V, ±5% tolerance (B suffix), 50 mA test current (IZT), 4.0 Ω maximum dynamic impedance (ZZ), and 110 mA maximum Zener current (IZM) at 25 °C lead temperature. It regulates voltage in power supply reference and overvoltage protection circuits across industrial control and telecom line cards.
For engineers reviewing the 1N5360B/TR8 datasheet, 1N5360B/TR8 pinout, 1N5360B/TR8 application, or 1N5360B/TR8 equivalent, this page delivers verified electrical specs, thermal derating behavior, JEDEC T-18 package details, RoHS-compliant plating, and validated alternatives for stable 25 V regulation under variable load and temperature conditions.
Technical Context
This device operates as a two-terminal voltage reference with cathode-banded polarity, requiring reverse-bias connection where the banded end is positive relative to the anode. Its regulation stability relies on low dynamic impedance (4.0 Ω) at 50 mA IZT and minimal voltage variation (ΔVZ = 0.55 V) between 10% and 50% of IZM.
Thermal performance is defined by 25 °C/W junction-to-lead resistance at 10 mm lead length and 85 °C/W junction-to-ambient on FR4 with specified copper pad geometry. It withstands 8.3 ms half-sine surge currents up to 110 A and maintains moisture sensitivity level 1 per J-STD-020B without dry pack.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25 V ±5% - precise DC reference point for feedback loops and clamping thresholds |
| Test Current (IZT) | 50 mA - operating point at which VZ and ZZ are guaranteed per JEDEC spec |
| Dynamic Impedance (ZZ) | 4.0 Ω max - low AC resistance ensures minimal output voltage shift under load transients |
| Max Zener Current (IZM) | 110 mA - maximum continuous reverse current before thermal runaway at TL = 25 °C |
| Power Dissipation | 5.0 W at TL < 25 °C - requires ≥10 mm lead length or heatsinking for full-rated operation |
| Reverse Leakage (IR) | 0.5 μA max at VR = 19 V - negligible standby current in high-impedance bias networks |
| Voltage Regulation (ΔVZ) | 0.55 V - difference between VZ measured at 11 mA and 55 mA, indicating regulation linearity |
Pinout & Package
JEDEC T-18 axial-leaded plastic package with void-free UL94V-0 epoxy body, tin-lead or RoHS-compliant matte-tin plating, cathode indicated by single black band. Leads are 0.51 mm diameter, 25 mm minimum length, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; forms return path for Zener current |
| Cathode | Regulated output node | Banded end; connected to voltage source input; maintains 25 V relative to anode under reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Complies with industry-standard 1N53xxB series mechanical and electrical definitions |
| ±5% voltage tolerance | Guarantees VZ between 23.75 V and 26.25 V at 25 °C, enabling tighter feedback loop design |
| Low thermal resistance | 25 °C/W junction-to-lead allows 5 W operation with simple lead-length heat sinking |
| Moisture Level 1 | No dry pack required per IPC/JEDEC J-STD-020B - simplifies handling and assembly logistics |
| RoHS-compliant option | e3 suffix indicates lead-free matte-tin plating meeting EU Directive 2011/65/EU |
Applications
| Industrial Power Supply Reference | Telecom Line Card Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converter secondary-side error amplifiers. IC Role / Device Role / Timing Role: Voltage reference element providing fixed 25 V setpoint to optocoupler input or TL431 comparator. Use Value: Maintains ±0.55 V regulation window across 11–55 mA load range, ensuring consistent regulation despite transformer leakage and load step changes. |
Use Scenario: Protecting analog front-end circuitry from transient surges on -48 V telecom distribution lines. IC Role / Device Role / Timing Role: Shunt clamp absorbing energy during lightning-induced spikes or hot-swap events. Use Value: Withstands 110 A non-repetitive surge (8.3 ms half-sine) while holding clamped voltage ≤26.25 V, preventing downstream IC damage. |
| Automotive Body Control Module (BCM) Sensor Bias | Test Equipment Precision Voltage Source |
Use Scenario: Providing stable excitation voltage to resistive temperature sensors in engine bay modules. IC Role / Device Role / Timing Role: Low-drift DC bias generator operating across -40 °C to +125 °C ambient. Use Value: Delivers 25 V ±5% over full temperature range with only 0.55 V ΔVZ, minimizing sensor measurement error due to reference drift. |
Use Scenario: Serving as programmable shunt reference in benchtop multimeter calibration circuits. IC Role / Device Role / Timing Role: Primary voltage standard traceable to factory test conditions at 50 mA IZT. Use Value: Enables calibration accuracy within ±0.55 V across operating current range, supporting 4½-digit meter resolution requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5360B (bulk) | Same electrical specs and T-18 package; differs only in packaging format (ammo pack vs. tape-and-reel) | No functional difference; TR8 denotes EIA-296 compliant tape-and-reel for automated placement | Select 1N5360B/TR8 when using SMT pick-and-place equipment; choose bulk for manual or wave-solder assembly. |
| MMBZ5254B (SOT-23) | 25 V ±5%, but rated at 0.35 W; surface-mount, 3-pin package with cathode/anode/NC configuration | Not suitable for 5 W power dissipation; limited to low-current biasing or signal-level clamping | Use MMBZ5254B only in space-constrained, low-power designs where thermal mass is insufficient for axial-leaded devices. |
Compared with 1N5360B/TR8, the bulk version offers identical regulation performance with simpler logistics, while MMBZ5254B trades power capability for miniaturization-making the 1N5360B/TR8 optimal for robust 5 W reference or clamping where thermal margin and surge immunity are critical.
Availability
1N5360B/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, telecom line protection, automotive sensor biasing, and precision test equipment requiring stable component supply with full JEDEC compliance and RoHS support.
Supply support for 1N5360B/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 5 W voltage regulation in harsh-environment applications where thermal stability, surge resilience, and long-term parametric consistency are mandatory.
FAQ
What is the Zener voltage tolerance for 1N5360B/TR8?
The 1N5360B/TR8 has a nominal Zener voltage of 25 V with a ±5% tolerance, meaning its actual regulation voltage falls between 23.75 V and 26.25 V when measured at 50 mA test current and 25 °C lead temperature. This tolerance is confirmed by the "B" suffix per Microsemi's datasheet revision D.
Can 1N5360B/TR8 be used in surface-mount designs?
No, the 1N5360B/TR8 uses a JEDEC T-18 axial-leaded package and is not a surface-mount device. For SMT equivalents, Microsemi offers the SMBJ5360B in DO-214AA package-but that part is rated at 5 W with different thermal characteristics and footprint. The 1N5360B/TR8 requires through-hole mounting with ≥10 mm lead length for full power rating.
What is the maximum surge current rating for 1N5360B/TR8?
The 1N5360B/TR8 is rated for a non-repetitive peak surge current (IZSM) of 110 A, defined as the maximum amplitude of an 8.3 ms half-sine waveform. This rating enables reliable transient suppression in telecom and industrial power rails without degradation, provided the surge event remains within specified duration and repetition limits.
How does thermal resistance affect 1N5360B/TR8 power handling?
The 1N5360B/TR8 has a junction-to-lead thermal resistance of 25 °C/W at 10 mm lead length. At ambient temperatures above 25 °C, power must be derated linearly-e.g., at TL = 75 °C, maximum dissipation drops to 3.75 W. Mounting on FR4 with specified copper pads raises thermal resistance to 85 °C/W, limiting steady-state power to ~1.47 W without additional heatsinking.
Is 1N5360B/TR8 RoHS compliant?
Yes, the "TR8" suffix includes the "e3" designation per Microsemi documentation, confirming RoHS compliance with lead-free matte-tin plating on leads and adherence to EU Directive 2011/65/EU. The device contains no restricted substances above threshold limits and meets J-STD-020B moisture sensitivity Level 1 without dry pack.
1N5360B/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:
- ±5%
- 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
1N5360B/TR8 FAQ
1.How can I place an order for 1N5360B/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5360B/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 1N5360B/TR8 reliable?
The price and inventory of 1N5360B/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5360B/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5360B/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5360B/TR8 transactions.
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4.How is shipping managed for 1N5360B/TR8?
1N5360B/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5360B/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 1N5360B/TR8?
For technical support, including 1N5360B/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5360B/TR8 requirements.
6.How does Aetrix verify that 1N5360B/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5360B/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 1N5360B/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5360B/TR8?
All 1N5360B/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5360B/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 1N5360B/TR8 part is unused and in its original packaging.
Return procedure for 1N5360B/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5360B/TR8 Tags
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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