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Microchip Technology 1N5367CE3/TR13
- Part No.:
- 1N5367CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5367CE3/TR13.pdf
- Description:
- DIODE ZENER 43V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:7,950
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Product details
Overview
1N5367CE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 43 V, ±2% tolerance (C suffix), 20 mA test current, 20 Ω dynamic impedance at IZT, and maximum reverse current of 0.5 μA at 32.7 V. 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 1N5367CE3/TR13 datasheet, 1N5367CE3/TR13 pinout, 1N5367CE3/TR13 application, or 1N5367CE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (190 A), voltage regulation (ΔVZ = 2.8 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator in reverse-biased mode, maintaining stable output voltage across wide current variation (IZM = 190 mA). Its low dynamic impedance (20 Ω) and tight ±2% tolerance ensure minimal voltage drift under load changes and temperature extremes.
The 1N5367CE3/TR13 uses a void-free thermosetting epoxy T-18 package with cathode band marking, rated for 5 W steady-state dissipation at 25 °C lead temperature and 1.47 W on FR4 board. It withstands 8.3 ms half-sine surge currents up to 190 A and exhibits ESD insensitivity per MIL-STD-750 Method 1020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 43 V ±2% - precise regulation point for feedback loops in switching regulators |
| Test Current (IZT) | 30 mA - operating point where VZ and ZZ are specified; defines bias condition for stable reference |
| Dynamic Impedance (ZZ) | 20 Ω at IZT - low AC resistance ensures minimal output voltage variation under dynamic load |
| Max Reverse Current (IR) | 0.5 μA at 32.7 V - guarantees high off-state blocking for leakage-sensitive circuits |
| Power Dissipation (PD) | 5.0 W at TL = 25 °C - requires 3/8″ lead length heat sinking for full-rated operation |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables thermal design with discrete heatsinking or PCB copper area |
| Surge Current (IZSM) | 190 A (8.3 ms half-sine) - sustains transient overvoltage events without failure |
| Voltage Regulation (ΔVZ) | 2.8 V - difference between VZ measured at 10% and 50% of IZM; quantifies regulation linearity |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-204AL; void-free UL94V-0 epoxy body; cathode indicated by color band; leads plated with RoHS-compliant annealed matte tin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node | Connected to circuit common when used as shunt regulator; defines polarity for reverse-bias operation |
| Cathode | Zener regulation terminal / Output reference node | Banded end; connected to regulated voltage rail; carries full Zener current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables high-accuracy voltage references without external trimming in industrial control systems |
| Moisture sensitivity Level 1 (IPC/JEDEC J-STD-020B) | Eliminates dry-pack requirement and bake-out prior to assembly, reducing manufacturing cost |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Supports handling in standard production environments without special ESD controls |
| RoHS-compliant e3 suffix | Meets EU Directive 2011/65/EU and China RoHS II requirements for lead-free electronics |
| High surge current capability (190 A) | Provides robust transient suppression in DC bus protection without external TVS devices |
Applications
| Industrial Power Supply Feedback | Overvoltage Clamp for DC Bus |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters via optocoupler feedback loop. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 43 V reference to TL431 or similar error amplifier. Use Value: ±2% tolerance and 20 Ω ZZ maintain <±1% output regulation across line/load/temperature variations. | Use Scenario: Clamping 48 V DC distribution bus against lightning-induced surges. IC Role / Device Role / Timing Role: Passive crowbar element absorbing transient energy above 43 V threshold. Use Value: 190 A surge rating and 2.8 V ΔVZ limit peak clamping voltage to ≤45.8 V during 8.3 ms transients. |
| Programmable Voltage Monitor | Reference for Precision ADC Biasing |
Use Scenario: Setting trip point for undervoltage/overvoltage detection in battery management systems. IC Role / Device Role / Timing Role: Stable threshold generator feeding comparator input (e.g., LM393). Use Value: Low 0.5 μA IR at 32.7 V ensures negligible loading on sensing resistors and high noise immunity. | Use Scenario: Providing reference voltage to bias analog front-end of 16-bit SAR ADCs. IC Role / Device Role / Timing Role: Low-noise, low-drift DC reference source for ADC reference input. Use Value: 25 °C/W RθJL and ±2% tolerance support <1 LSB error contribution across −40 °C to +85 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5367B | Same 43 V nominal VZ, but ±5% tolerance (B suffix) and higher ZZ = 20 Ω at 30 mA | Lower accuracy; suitable for non-critical regulation where cost is prioritized over precision | Select when ±5% tolerance meets system spec and RoHS compliance is not required |
| MMSZ5265ET1G | Surface-mount SOD-123 package; 43 V ±5%; 500 mW rating; ZZ = 90 Ω at 10 mA | Not interchangeable due to power rating (0.5 W vs. 5 W) and thermal profile; limited to low-power signal-level use | Choose only for space-constrained PCBs where full 5 W dissipation is unnecessary |
Compared with 1N5367B and MMSZ5265ET1G, the 1N5367CE3/TR13 delivers superior voltage accuracy (±2% vs. ±5%), higher power handling (5 W vs. 0.5 W), and proven surge robustness (190 A), making it optimal for industrial-grade power regulation where reliability and precision are mandatory.
Availability
1N5367CE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply feedback, DC bus overvoltage clamp, and programmable voltage monitor applications requiring stable component supply and long-term lifecycle support.
Supply support for 1N5367CE3/TR13 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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N53xxB series was designed specifically for ruggedized 5 W Zener regulation in harsh-environment power systems, emphasizing thermal stability, surge resilience, and military-grade screening compatibility.
FAQ
What is the Zener voltage tolerance of the 1N5367CE3/TR13?
The 1N5367CE3/TR13 has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in its part number. This means its actual regulation voltage falls within 42.14 V to 43.86 V at 30 mA test current and 25 °C lead temperature. This tighter tolerance supports precision voltage references in industrial control and instrumentation applications where ±5% variants like the 1N5367B would introduce unacceptable error.
Does the 1N5367CE3/TR13 require dry packing before PCB assembly?
No, the 1N5367CE3/TR13 does not require dry packing before PCB assembly. It carries moisture sensitivity level (MSL) 1 per IPC/JEDEC J-STD-020B, meaning it is not moisture-sensitive and can be stored and processed under standard factory conditions without baking or humidity-controlled packaging. This simplifies manufacturing logistics and reduces assembly cost compared to higher-MSL components.
What is the maximum surge current rating for the 1N5367CE3/TR13?
The 1N5367CE3/TR13 is rated for a maximum non-recurrent surge current (IZSM) of 190 A, defined as the peak value of an 8.3 ms half-sine waveform. This rating reflects its ability to absorb transient energy without failure, making it suitable for overvoltage protection in 48 V DC systems. The surge capability is enabled by its 5 W power rating and low thermal resistance (25 °C/W junction-to-lead).
How is the cathode identified on the 1N5367CE3/TR13?
The cathode of the 1N5367CE3/TR13 is identified by a distinct color band on the body of the axial-leaded T-18 package. When installed in circuit, the banded end must be held positive relative to the opposite (anode) end to operate the device in reverse-biased Zener regulation mode. This polarity marking is consistent across the entire 1N5333B–1N5388B family and aligns with JEDEC DO-204AL mechanical standards.
What is the thermal resistance specification for the 1N5367CE3/TR13?
The 1N5367CE3/TR13 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W when measured at 3/8″ (10 mm) lead length from the body. This value enables accurate thermal modeling for heatsink design or PCB copper area sizing. When mounted on FR4 with 1 oz copper, its junction-to-ambient resistance rises to 85 °C/W, limiting usable power dissipation to 1.47 W at 25 °C ambient unless additional thermal management is applied.
1N5367CE3/TR13 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):
- 43 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 31 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
1N5367CE3/TR13 FAQ
1.How can I place an order for 1N5367CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5367CE3/TR13 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 1N5367CE3/TR13 reliable?
The price and inventory of 1N5367CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5367CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5367CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5367CE3/TR13 transactions.
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4.How is shipping managed for 1N5367CE3/TR13?
1N5367CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5367CE3/TR13 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 1N5367CE3/TR13?
For technical support, including 1N5367CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5367CE3/TR13 requirements.
6.How does Aetrix verify that 1N5367CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5367CE3/TR13 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 1N5367CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5367CE3/TR13?
All 1N5367CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5367CE3/TR13, 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 1N5367CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5367CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5367CE3/TR13 Tags
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