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Microchip Technology 1N5367C/TR12
- Part No.:
- 1N5367C/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5367C/TR12.pdf
- Description:
- DIODE ZENER 43V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:9,958
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Product details
Overview
1N5367C/TR12 from Microsemi is a 5 W axial-leaded silicon Zener diode with a nominal regulation voltage of 43 V, ±2% tolerance (C suffix), 20 mA test current (IZT), 20 Ω dynamic impedance (ZZ), and 190 mA maximum Zener current (IZM) at 25°C lead temperature. 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 1N5367C/TR12 datasheet, 1N5367C/TR12 pinout, 1N5367C/TR12 application, or 1N5367C/TR12 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (190 A), reverse leakage (<0.5 µA at 32.7 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse breakdown, maintaining stable output across wide current (10–190 mA) and temperature (–65°C to +150°C) ranges. Its low dynamic impedance (20 Ω) and tight ±2% voltage tolerance ensure minimal regulation deviation under load variation.
The 1N5367C/TR12 uses a void-free thermosetting epoxy T-18 package with cathode band marking, rated for 5 W steady-state dissipation at TL < 25°C (3/8″ lead length), and exhibits 0.7 g mass and IPC/JEDEC J-STD-020B Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 43 V ±2% - precise regulation point for feedback loops and reference circuits |
| Test Current (IZT) | 30 mA - standardized bias point for measuring VZ and ZZ |
| Dynamic Impedance (ZZ) | 20 Ω - low AC resistance ensures stable voltage under varying load currents |
| Max Zener Current (IZM) | 190 mA - maximum continuous DC current before thermal runaway at TL = 25°C |
| Reverse Leakage (IR) | <0.5 µA at 32.7 V - negligible standby power loss in high-impedance bias networks |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables 5 W operation with modest heatsinking at 3/8″ lead length |
| Surge Current (IZSM) | 190 A (8.3 ms half-sine) - withstands transient overvoltage events without failure |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case (void-free UL94V-0 epoxy), cathode indicated by colored band; leads are annealed matte-tin plated (RoHS compliant), solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse-biased during regulation |
| Cathode | Zener breakdown terminal / regulated output node | Connected to voltage source input; delivers stable 43 V to load when reverse-biased |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables high-accuracy voltage references without external trimming in analog control circuits |
| 25 °C/W junction-to-lead thermal resistance | Supports full 5 W dissipation with simple lead-length heatsinking-no PCB copper pour required |
| 190 A non-repetitive surge rating (8.3 ms) | Provides robust transient immunity in unregulated DC bus protection applications |
| Level 1 moisture sensitivity (J-STD-020B) | Eliminates dry-pack requirement and bake-out prior to assembly-reduces manufacturing cost |
| RoHS-compliant e3 marking | Meets global environmental compliance mandates without performance trade-offs |
Applications
| Industrial Power Supply Regulation | Overvoltage Clamp for DC Bus |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated flyback converters with ±2% output accuracy requirement. IC Role / Device Role / Timing Role: Precision shunt reference providing error amplifier input in secondary-side regulation loop. Use Value: Maintains 43 V reference with <0.85 V regulation deviation (ΔVZ) across 10–190 mA load range, enabling tighter output tolerance. |
Use Scenario: Protecting IGBT gate drivers from 48 V DC bus transients in motor drives. IC Role / Device Role / Timing Role: Fast-acting crowbar element clamping voltage spikes above 43 V threshold. Use Value: Absorbs 190 A surge energy (8.3 ms) without degradation, preventing gate oxide rupture in downstream power stages. |
| Programmable Voltage Reference | Temperature-Stable Bias Network |
Use Scenario: Generating fixed 43 V reference for ADC reference buffers in data acquisition systems. IC Role / Device Role / Timing Role: Low-drift shunt regulator feeding precision op-amp buffer stage. Use Value: Delivers <0.5 µA leakage at 32.7 V, minimizing input bias error in high-impedance reference paths. |
Use Scenario: Establishing stable bias current for Class-A audio amplifier output stages over –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Temperature-compensated current source node using matched Zener/BJT topology. Use Value: Operates reliably from –65°C to +150°C with <2.8 V regulation shift (ΔVZ) across full IZM range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5367B/TR12 | ±5% tolerance (B suffix), same VZ nominal, identical package and thermal specs | Acceptable where ±5% regulation accuracy suffices; lower cost than C-grade | Select for cost-sensitive industrial controls where calibration compensates for tolerance |
| MMSZ5267ET1G | Surface-mount SOD-123 package, 500 mW rating, ±5% tolerance, 43 V nominal | Not suitable for 5 W power handling; limited to low-power signal-level referencing | Choose only for space-constrained PCBs with <100 mA average current and no surge exposure |
Compared with 1N5367C/TR12, the 1N5367B/TR12 offers identical thermal and surge performance at relaxed tolerance, while MMSZ5267ET1G trades power capability for miniaturization-neither is pin-compatible, and both require layout revision.
Availability
1N5367C/TR12 is available at Aetrix Electronics and suitable for industrial power supply regulation, overvoltage clamp for DC bus, programmable voltage reference, and temperature-stable bias network applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1N5367C/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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N53xxB/C series was designed for ruggedized voltage regulation in harsh-environment power systems, emphasizing thermal robustness, surge resilience, and extended temperature operation.
FAQ
What is the Zener voltage tolerance of the 1N5367C/TR12?
The 1N5367C/TR12 has a Zener voltage tolerance of ±2%, designated by the "C" suffix per Microsemi's documentation. This means its actual regulation voltage falls between 42.14 V and 43.86 V at 30 mA test current and 25°C lead temperature. The 1N5367C/TR12 achieves this tighter tolerance through post-production screening, making it suitable for applications demanding higher reference accuracy than standard ±5% (B suffix) or ±10% (A suffix) variants.
What is the maximum continuous power dissipation for the 1N5367C/TR12?
The 1N5367C/TR12 is rated for 5.0 W steady-state power dissipation at a lead temperature (TL) below 25°C with 3/8″ (10 mm) lead length from the body. Derating is required above 25°C-thermal resistance is 25 °C/W junction-to-lead-so at TL = 75°C, maximum power drops to 4.0 W. This rating assumes adequate heat sinking via leads; on FR4 board with 1 oz copper, derated power is 1.47 W at 25°C ambient.
Does the 1N5367C/TR12 meet RoHS requirements?
Yes, the 1N5367C/TR12 is RoHS compliant, indicated by the "e3" suffix in official Microsemi documentation. Its leads feature annealed matte-tin plating per MIL-STD-750 Method 2026, and the void-free thermosetting epoxy case meets UL94V-0 flammability standards. No lead-free conversion or requalification is needed-the 1N5367C/TR12 ships fully compliant with EU Directive 2011/65/EU and related amendments.
What is the reverse leakage current specification for the 1N5367C/TR12?
The 1N5367C/TR12 specifies a maximum reverse leakage current (IR) of 0.5 µA at a reverse test voltage (VR) of 32.7 V-corresponding to 75% of its nominal 43 V Zener voltage. This low leakage ensures minimal quiescent current draw in high-impedance reference networks and contributes to stable biasing in precision analog circuits where leakage-induced errors must be avoided.
How is polarity marked on the 1N5367C/TR12 package?
The 1N5367C/TR12 uses a cathode band marking: a single colored band near one end of the axial T-18 package identifies the cathode terminal. During normal Zener operation, this banded end must be held at a more positive potential than the anode (unbanded) end. Correct orientation is critical-reverse connection will forward-bias the diode, causing excessive current and potential failure of the 1N5367C/TR12.
1N5367C/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):
- 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
1N5367C/TR12 FAQ
1.How can I place an order for 1N5367C/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5367C/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 1N5367C/TR12 reliable?
The price and inventory of 1N5367C/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5367C/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5367C/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5367C/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5367C/TR12?
1N5367C/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5367C/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 1N5367C/TR12?
For technical support, including 1N5367C/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5367C/TR12 requirements.
6.How does Aetrix verify that 1N5367C/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5367C/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 1N5367C/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5367C/TR12?
All 1N5367C/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5367C/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 1N5367C/TR12 part is unused and in its original packaging.
Return procedure for 1N5367C/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5367C/TR12 Tags
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