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Microchip Technology 1N5360E3/TR12
- Part No.:
- 1N5360E3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5360E3/TR12.pdf
- Description:
- DIODE ZENER 25V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:6,604
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Product details
Overview
1N5360E3/TR12 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 4.3 V regulation at 1 mA knee current (ZZK), maintains ≤0.55 V voltage regulation (ΔVZ) across 10–50% of IZM, and operates from –65°C to +150°C with 25 °C/W junction-to-lead thermal resistance.
For engineers reviewing the 1N5360E3/TR12 datasheet, 1N5360E3/TR12 pinout, 1N5360E3/TR12 application, or 1N5360E3/TR12 equivalent, key selection criteria include its 25 V nominal Zener voltage, 50 mA maximum regulator current (IZM), 4.0 Ω dynamic impedance (ZZ) at 50 mA test current, RoHS-compliant matte-tin plating, and T-18 axial package with cathode band polarity marking.
Technical Context
This device functions as a two-terminal shunt voltage regulator, operating in reverse breakdown mode with cathode biased positive relative to anode. Its Zener voltage is specified at 25°C lead temperature (TL), measured 40±10 ms after DC current application, and exhibits minimal voltage drift over temperature due to low ΔVZ (0.55 V) between 10% and 50% of IZM.
The 1N5360E3/TR12 uses void-free thermosetting epoxy encapsulation (UL94V-0), supports 260°C/10s soldering, and achieves 25 °C/W thermal resistance when leads are trimmed to 10 mm (3/8″) from body-enabling stable 5 W dissipation with appropriate heat sinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25 V ±5% at 50 mA test current-defines precise regulation point for feedback and clamp circuits. |
| Power Dissipation (Pd) | 5.0 W at TL = 25°C with 10 mm lead length-supports high-current regulation without forced cooling. |
| Dynamic Impedance (ZZ) | 4.0 Ω max at IZT = 50 mA-ensures tight voltage stability under varying load currents. |
| Voltage Regulation (ΔVZ) | 0.55 V max between 10% and 50% of IZM-quantifies low sensitivity to current changes in regulation zone. |
| Max Regulator Current (IZM) | 110 mA at VZ = 25 V-sets absolute upper limit for continuous reverse conduction before thermal runaway. |
| Knee Impedance (ZZK) | 4.3 V at 1.0 mA-indicates usable regulation onset for low-current biasing and sensing. |
| Reverse Leakage (IR) | 0.5 μA max at VR = 19 V-confirms negligible standby current in clamping mode below breakdown. |
Pinout & Package
Package: T-18 axial-leaded plastic case per JEDEC DO-204AL standard; void-free UL94V-0 epoxy body; cathode identified by single black band; RoHS-compliant matte-tin plated leads; weight 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference node / ground return | Connected to circuit common; reverse-biased operation requires this terminal at lower potential than cathode. |
| Cathode (banded end) | Regulated output / clamp node | Biasing point for feedback networks; carries full IZM current during regulation; must be held positive relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures standardized mechanical dimensions, thermal performance, and electrical behavior across global supply chain. |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints-reduces handling overhead in SMT and through-hole assembly. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Enables safe handling without special grounding protocols-lowers risk of latent damage during board assembly. |
| High surge current rating (IZSM = 110 A) | Withstands 8.3 ms half-sine transients-provides robust transient overvoltage suppression in industrial power rails. |
| e3 RoHS-compliant plating | Meets EU RoHS Directive 2011/65/EU and China RoHS-enables compliance in export-oriented consumer and industrial products. |
Applications
| Switch-Mode Power Supply Feedback | Industrial Overvoltage Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback or forward converter feedback loop via optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Shunt reference providing stable 25 V reference to TL431 or similar error amplifier input. Use Value: Maintains ±1% output accuracy over line/load/temperature with <0.55 V ΔVZ and 4.0 Ω ZZ, reducing need for trimming resistors. | Use Scenario: Protects PLC analog input channels from 24 V rail surges exceeding 30 V during field wiring faults. IC Role / Device Role / Timing Role: Passive clamp limiting voltage at ADC front-end to safe level while absorbing up to 110 A surge. Use Value: Prevents latch-up or damage to 3.3 V or 5 V signal conditioning ICs using only one discrete component with no active control. |
| Programmable Reference Source | DC-DC Converter Output Trim |
Use Scenario: Generates adjustable reference for DAC-based programmable power supplies requiring 20–30 V setpoints. IC Role / Device Role / Timing Role: Precision Zener element in resistor-divider network setting DAC reference voltage. Use Value: Enables 25 V base reference with ±5% tolerance and <0.55 V regulation spread-improves setpoint repeatability vs. generic Zeners. | Use Scenario: Fine-tunes output of fixed 24 V DC-DC module to 25.0 V ±0.1 V for sensor excitation in metrology equipment. IC Role / Device Role / Timing Role: Series-connected Zener in trim potentiometer network adjusting feedback divider ratio. Use Value: Delivers stable 25 V reference with 4.3 V knee voltage and 1.2 V forward drop-minimizes trim range nonlinearity and thermal drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5360B | Same 25 V ±5%, 5 W rating, but leaded SnPb plating (non-RoHS); no e3 suffix; TR12 tape-and-reel not standard. | Acceptable where RoHS exemption applies and reel packaging is not required; higher moisture sensitivity (not Level 1). | Select 1N5360B only for legacy military or aerospace builds requiring SnPb and MIL-PRF-19500 screening prefixes. |
| MMSZ5254ET1G | Surface-mount SOD-123 package; 24 V ±5%, 500 mW; 30 Ω ZZ at 20 mA; not rated for >110 mA continuous. | Suitable for space-constrained PCBs but cannot replace 1N5360E3/TR12 in 5 W power regulation-requires derating or parallel devices. | Choose MMSZ5254ET1G only for low-power biasing or sensing; avoid in primary regulation or surge-clamp roles. |
Compared with 1N5360B and MMSZ5254ET1G, the 1N5360E3/TR12 uniquely combines RoHS compliance, T-18 axial form factor, 5 W power handling, and 110 A surge capability-making it optimal for industrial power supply and protection designs requiring reliability, serviceability, and regulatory alignment.
Availability
1N5360E3/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, PLC I/O protection circuits, and programmable reference sources requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N5360E3/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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for ruggedized voltage regulation in harsh-environment power systems-emphasizing thermal robustness, surge immunity, and long-term parametric stability under extended temperature cycling.
FAQ
What is the Zener voltage tolerance of the 1N5360E3/TR12?
The 1N5360E3/TR12 has a nominal Zener voltage of 25 V with a tolerance of ±5%, indicated by the "B" suffix in its registered designation (1N5360B). This tolerance is confirmed in the Electrical Characteristics table on page 2 of the Microsemi datasheet, where all "B"-suffix parts are explicitly defined as ±5%.
Does the 1N5360E3/TR12 require dry packing before use?
No, the 1N5360E3/TR12 does not require dry packing. Its moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1, meaning it can be stored indefinitely at ambient conditions without desiccant or humidity-controlled packaging-verified in the Features section of the Microsemi datasheet.
What is the maximum steady-state power dissipation for the 1N5360E3/TR12 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 1N5360E3/TR12 has a steady-state power rating of 1.47 W at TA = 25°C, as specified in the Maximum Ratings table. This reflects its 85 °C/W junction-to-ambient thermal resistance under those conditions.
Can the 1N5360E3/TR12 be used in surface-mount designs?
No-the 1N5360E3/TR12 is an axial-leaded T-18 package and is not compatible with surface-mount assembly. For SMT equivalents, Microsemi offers the SMBJ5360B or SMBG5360B in DO-214AA/DO-214AB packages, which share identical electrical specs but differ mechanically.
What is the surge current rating of the 1N5360E3/TR12 and how is it defined?
The 1N5360E3/TR12 has a peak non-recurrent surge current (IZSM) rating of 110 A, defined as the maximum amplitude of an 8.3 ms half-sine wave pulse per Note 5 in the datasheet. This rating enables reliable transient suppression in industrial power rails subject to lightning-induced or switching-induced spikes.
1N5360E3/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):
- 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
1N5360E3/TR12 FAQ
1.How can I place an order for 1N5360E3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5360E3/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 1N5360E3/TR12 reliable?
The price and inventory of 1N5360E3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5360E3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5360E3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5360E3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5360E3/TR12?
1N5360E3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5360E3/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 1N5360E3/TR12?
For technical support, including 1N5360E3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5360E3/TR12 requirements.
6.How does Aetrix verify that 1N5360E3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5360E3/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 1N5360E3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5360E3/TR12?
All 1N5360E3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5360E3/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 1N5360E3/TR12 part is unused and in its original packaging.
Return procedure for 1N5360E3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5360E3/TR12 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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