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Microchip Technology 1N5362CE3/TR12
- Part No.:
- 1N5362CE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5362CE3/TR12.pdf
- Description:
- DIODE ZENER 28V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:7,022
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Product details
Overview
1N5362CE3/TR12 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 28 V, ±2% tolerance (C suffix), 6.0 Ω maximum dynamic impedance at 50 mA test current, and 130 A peak surge current rating. It operates from −65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in industrial power supplies.
For engineers reviewing the 1N5362CE3/TR12 datasheet, 1N5362CE3/TR12 pinout, 1N5362CE3/TR12 application, or 1N5362CE3/TR12 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), steady-state power derating, RoHS compliance (e3 suffix), and tape-and-reel packaging (TR12).
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse breakdown mode. Its Zener voltage is specified at 28.0 V ±2% under 50 mA DC test current (IZT), with dynamic impedance measured at 1 kHz AC superimposed on IZT.
Thermal performance is defined by junction-to-lead resistance of 25 °C/W at 3/8″ (10 mm) lead length, enabling stable 5 W dissipation at TL ≤ 25 °C. Reverse leakage remains ≤0.5 μA up to 21.2 V (VR = 0.75 × VZ), and voltage regulation (ΔVZ) is 3.9 V between 10% and 50% of IZM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 28.0 V ±2% - precise regulation point at 50 mA, suitable for stable reference generation |
| Power Dissipation | 5.0 W at TL ≤ 25 °C - requires minimum 10 mm lead length from body for full rating |
| Dynamic Impedance (ZZ) | 6.0 Ω max @ 50 mA - low AC impedance ensures minimal output voltage variation under load transients |
| Surge Current (IZSM) | 130 A peak (8.3 ms half-sine) - withstands transient overvoltage events without failure |
| Reverse Leakage (IR) | ≤0.5 μA @ 21.2 V - negligible standby current below regulation threshold |
| Voltage Regulation (ΔVZ) | 3.9 V - difference between VZ measured at 10% and 50% of max current (IZM) |
| Thermal Resistance | 25 °C/W junction-to-lead - enables predictable thermal design with standard axial mounting |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-204AL. Cathode indicated by band; operated with banded end positive relative to unbanded end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded lead | Connected to lower-potential node; forward voltage ≤1.2 V @ 1.0 A |
| Cathode | Banded lead | Connected to regulated output node; reverse-biased during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables tighter regulation accuracy than ±5% (B) or ±10% (A) variants, reducing need for post-regulation trimming |
| RoHS-compliant matte-tin plating | Meets lead-free soldering requirements (260 °C/10 s) without compromising solderability or reliability |
| Moisture sensitivity Level 1 | No dry pack required prior to assembly-reduces handling cost and process complexity |
| Low junction-to-lead thermal resistance | 25 °C/W allows full 5 W operation with simple lead-length heat sinking-no PCB copper pour needed |
Applications
| Industrial Power Supply Reference | Overvoltage Clamp Circuit |
|---|---|
Use Scenario: Providing stable 28 V reference for feedback loop in isolated DC-DC converters. IC Role / Device Role / Timing Role: Voltage reference element in error amplifier feedback path. Use Value: ±2% tolerance and 6.0 Ω dynamic impedance ensure <±0.5% output voltage drift across line/load variations. | Use Scenario: Clamping transient surges on 24 V rail in PLC I/O modules. IC Role / Device Role / Timing Role: Shunt protector limiting rail voltage to safe level during ESD or inductive kick. Use Value: 130 A surge rating and 3.9 V ΔVZ allow reliable clamping without thermal runaway under repeated 8.3 ms transients. |
| Test Equipment Calibration Source | Automotive Battery Monitoring |
Use Scenario: Generating traceable 28 V reference in portable multimeter calibration fixtures. IC Role / Device Role / Timing Role: Precision voltage source for ADC reference or DAC output verification. Use Value: Tight 2% tolerance and low 0.5 μA leakage enable sub-10 ppm stability over temperature and time. | Use Scenario: Monitoring 24 V battery health in commercial vehicle telematics units. IC Role / Device Role / Timing Role: Overvoltage detection node feeding comparator input. Use Value: Stable 28 V threshold with minimal ΔVZ ensures consistent trip point across −40 °C to +125 °C ambient range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5362B | Same 28 V nominal voltage but ±5% tolerance; identical package and thermal specs | Lower accuracy requirement; acceptable where 28 V ±1.4 V is sufficient | Select 1N5362B when cost sensitivity outweighs tight regulation needs |
| MMSZ5262ET1G | Surface-mount SOD-123 package; 28 V ±5%; 500 mW rating; 30 Ω ZZ | Not suitable for 5 W continuous dissipation; limited to low-power bias/reference use | Choose MMSZ5262ET1G only for space-constrained PCBs with <100 mA average current |
Compared with 1N5362B and MMSZ5262ET1G, the 1N5362CE3/TR12 delivers superior voltage accuracy and thermal robustness for high-power industrial regulation, while the alternatives trade precision or power capability for cost or footprint reduction.
Availability
1N5362CE3/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, automotive battery monitoring systems, and test equipment calibration requiring stable component supply with RoHS compliance and tape-and-reel delivery.
Supply support for 1N5362CE3/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial applications.
The 1N53xx series targets precision voltage regulation in harsh-environment power systems, emphasizing thermal stability, surge resilience, and long-term parametric consistency.
FAQ
What is the Zener voltage tolerance of the 1N5362CE3/TR12?
The 1N5362CE3/TR12 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This means its nominal 28 V regulation point falls within 27.44 V to 28.56 V at 50 mA test current and 25 °C lead temperature. This tighter tolerance supports higher-accuracy reference and protection circuits compared to ±5% (B) or ±10% (A) variants. The 1N5362CE3/TR12 achieves this via tighter binning during manufacturing.
How is the 1N5362CE3/TR12 packaged and delivered?
The 1N5362CE3/TR12 is supplied in tape-and-reel format per EIA-296 standard, indicated by the "TR12" suffix. It uses a T-18 axial-leaded plastic package (JEDEC DO-204AL) with RoHS-compliant matte-tin plated leads. Each reel contains 1,000 units. The "e3" suffix confirms lead-free compliance, and the cathode is marked by a visible band on the body. The 1N5362CE3/TR12 requires no dry pack due to IPC/JEDEC J-STD-020B Level 1 moisture sensitivity.
What is the maximum continuous power dissipation for the 1N5362CE3/TR12?
The 1N5362CE3/TR12 is rated for 5.0 W continuous power dissipation at a lead temperature (TL) of 25 °C, measured 3/8″ (10 mm) from the body. Derating is linear at 40 mW/°C above 25 °C TL. When mounted on FR4 with 1 oz copper, its steady-state power drops to 1.47 W at 25 °C ambient due to higher junction-to-ambient thermal resistance (85 °C/W). The 1N5362CE3/TR12 must be heat-sunk via lead length to achieve full 5 W capability.
Does the 1N5362CE3/TR12 meet military screening standards?
The base 1N5362CE3/TR12 does not include military screening. However, Microsemi offers screened versions by adding prefixes: "MQ" for JAN, "MX" for JANTX, and "MV" for JANTXV per MIL-PRF-19500. These variants undergo extended environmental testing (temperature cycling, hermeticity, radiation hardness) and lot traceability. The 1N5362CE3/TR12 itself is commercial-grade but shares the same die and package construction as screened versions, differing only in test coverage and documentation.
What is the surge current rating of the 1N5362CE3/TR12 and how is it defined?
The 1N5362CE3/TR12 has a peak non-recurrent surge current rating of 130 A, defined per Note 5 as the maximum amplitude of an 8.3 ms half-sine waveform. This rating reflects its ability to absorb transient energy without parametric shift or catastrophic failure. It is validated under standardized surge conditions and correlates with the device's 5 W power rating and thermal mass. The 1N5362CE3/TR12 maintains regulation integrity after such events when properly mounted with adequate lead length for heat dissipation.
1N5362CE3/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):
- 28 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 6 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 20.1 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
1N5362CE3/TR12 FAQ
1.How can I place an order for 1N5362CE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5362CE3/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 1N5362CE3/TR12 reliable?
The price and inventory of 1N5362CE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5362CE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5362CE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5362CE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5362CE3/TR12?
1N5362CE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5362CE3/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 1N5362CE3/TR12?
For technical support, including 1N5362CE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5362CE3/TR12 requirements.
6.How does Aetrix verify that 1N5362CE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5362CE3/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 1N5362CE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5362CE3/TR12?
All 1N5362CE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5362CE3/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 1N5362CE3/TR12 part is unused and in its original packaging.
Return procedure for 1N5362CE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5362CE3/TR12 Tags
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