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Microchip Technology 1N5367AE3/TR8
- Part No.:
- 1N5367AE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5367AE3/TR8.pdf
- Description:
- DIODE ZENER 43V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:2,531
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Product details
Overview
1N5367AE3/TR8 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal zener voltage of 43 V, ±10% tolerance (A suffix), 30 mA test current, 20 Ω maximum dynamic impedance at IZT, and 190 mA maximum zener current (IZM) when adequately heat-sunk. It regulates voltage in power supply reference and overvoltage protection circuits across industrial temperature range.
For engineers reviewing the 1N5367AE3/TR8 datasheet, 1N5367AE3/TR8 pinout, 1N5367AE3/TR8 application, or 1N5367AE3/TR8 equivalent, key selection factors include its 43 V regulation point, ±10% tolerance, 5 W steady-state power rating at TL = 25°C, low 25 °C/W junction-to-lead thermal resistance, and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device operates as a reverse-biased voltage reference with specified regulation over 10–50% of IZM, exhibiting ΔVZ = 2.8 V (voltage regulation) and ZZK = 200 Ω at 1 mA knee current. Its design supports stable DC regulation under varying load and temperature conditions without active biasing circuitry.
It features moisture sensitivity level 1 per IPC/JEDEC J-STD-020B, void-free UL94V-0 epoxy encapsulation, cathode band polarity marking, and compatibility with 260°C/10s solder reflow. The axial T-18 package enables through-hole mounting with 3/8" (10 mm) lead length defining thermal performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 43 V nominal, ±10% tolerance - defines precise regulation threshold for overvoltage clamping or reference generation |
| Test Current (IZT) | 30 mA - operating point at which VZ and ZZ are guaranteed per JEDEC spec |
| Max Dynamic Impedance (ZZ) | 20 Ω at IZT - low AC impedance ensures minimal output voltage variation under dynamic load changes |
| Max Zener Current (IZM) | 190 mA - maximum continuous DC current before thermal runaway, assuming proper heat sinking |
| Power Dissipation (PD) | 5.0 W at TL = 25°C - steady-state thermal limit with 3/8" lead length; derates linearly above 25°C |
| Junction-to-Lead Thermal Resistance | 25 °C/W - enables high-current operation with simple lead-based heat conduction, not PCB copper area dependent |
| Reverse Leakage (IR) | 0.5 μA max at 32.7 V - ensures negligible standby current in high-impedance bias networks |
Pinout & Package
Package: Axial-leaded T-18 plastic case (JEDEC DO-204AL), void-free UL94V-0 epoxy body, tin-lead or RoHS-compliant matte-tin plated leads, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; reverse-bias current flows into cathode |
| Cathode | Regulated output node | Banded end; held at stable 43 V above anode when reverse current ≥ IZT |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener series | Guaranteed mechanical and electrical compliance with industry-standard 1N53xxB family specifications |
| RoHS-compliant construction (e3) | Matte-tin plating meets lead-free soldering requirements without compromising solderability or reliability |
| Level 1 moisture sensitivity | No dry pack required; safe for standard SMT/reflow handling without baking preconditioning |
| Nonsensitive to ESD | Withstands >4 kV HBM per MIL-STD-750 Method 1020 - eliminates need for special ESD handling in assembly |
| High surge current rating | 190 A peak non-repetitive half-sine (8.3 ms) - robust transient suppression capability beyond steady-state limits |
Applications
| Industrial Power Supply Reference | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Precision +43 V reference in analog front-end of programmable logic controller (PLC) power module. IC Role / Device Role / Timing Role: Zener diode provides stable voltage reference for feedback loop of isolated DC-DC converter. Use Value: Maintains ±10% regulation across -65°C to +150°C ambient, enabling reliable operation in uncontrolled cabinet environments. |
Use Scenario: Input-stage clamp protecting 48 V telecom line interface IC from lightning-induced surges. IC Role / Device Role / Timing Role: Shunts excess energy to ground when line voltage exceeds 43 V, limiting stress on downstream components. Use Value: Withstands 190 A surge (8.3 ms) and exhibits only 2.8 V regulation shift between 10% and 50% of IZM, ensuring predictable clamping behavior. |
| Automotive Battery Monitoring | Test Equipment Voltage Calibration |
|
Use Scenario: Monitoring 42–45 V battery voltage in 36 V commercial vehicle systems with wide temperature swings. IC Role / Device Role / Timing Role: Provides fixed reference for comparator-based undervoltage/overvoltage detection circuit. Use Value: Stable 43 V regulation with <0.5 μA leakage at 32.7 V enables low-power monitoring without loading battery during sleep mode. |
Use Scenario: Calibration standard in benchtop multimeter reference divider network requiring traceable 43 V node. IC Role / Device Role / Timing Role: Serves as primary voltage reference element in precision resistive divider chain. Use Value: Low 20 Ω dynamic impedance minimizes loading error when sourcing current to divider resistors, improving measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5367B | Same 43 V nominal, but ±5% tolerance (B suffix) vs. ±10% (A suffix); identical package, thermal specs, and IZM | Higher precision required where tighter regulation tolerance is critical, e.g., metrology-grade references | Select 1N5367B when ±5% VZ stability is mandatory; otherwise 1N5367AE3/TR8 offers cost-effective tolerance for general-purpose clamping |
| MMBZ5263BS-7-F | Surface-mount SOD-123 package, 43 V, ±5%, 200 mW - not power-compatible; requires PCB layout change and derating | Used only in space-constrained, low-power designs where 5 W dissipation is unnecessary | Choose MMBZ5263BS-7-F only for compact consumer electronics; 1N5367AE3/TR8 remains appropriate for industrial 5 W applications requiring axial mounting |
Compared with 1N5367B and MMBZ5263BS-7-F, the 1N5367AE3/TR8 delivers verified 5 W axial-leaded regulation at 43 V with ±10% tolerance, making it optimal for cost-sensitive, thermally demanding, through-hole power supply and protection circuits where surface-mount or tighter tolerance is not required.
Availability
1N5367AE3/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, telecom surge protectors, automotive battery monitors, and test equipment calibration circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1N5367AE3/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 discrete components for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for ruggedized 5 W voltage regulation in harsh-environment power systems, emphasizing thermal robustness, ESD immunity, and JEDEC-standard mechanical reliability.
FAQ
What is the zener voltage tolerance of the 1N5367AE3/TR8?
The 1N5367AE3/TR8 has a ±10% zener voltage tolerance, indicated by the "A" suffix in its part number. This means its actual breakdown voltage falls between 38.7 V and 47.3 V at 30 mA test current and 25°C lead temperature. This tolerance is confirmed in the manufacturer's Electrical Characteristics table and applies across the full operating temperature range of –65°C to +150°C.
Does the 1N5367AE3/TR8 require dry packing due to moisture sensitivity?
No, the 1N5367AE3/TR8 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it is not moisture-sensitive and does not require dry packing or baking prior to soldering. Its void-free UL94V-0 epoxy encapsulation ensures safe handling under standard manufacturing conditions without preconditioning.
What is the maximum continuous zener current for the 1N5367AE3/TR8?
The 1N5367AE3/TR8 supports a maximum continuous zener current (IZM) of 190 mA when operated with lead temperature maintained at ≤25°C - achieved using adequate heat sinking with 3/8" (10 mm) lead length from the body. At higher ambient temperatures, derating per Figure 1 in the datasheet must be applied to avoid exceeding the 5 W power limit.
How is polarity marked on the 1N5367AE3/TR8?
The 1N5367AE3/TR8 uses a cathode band marking: the banded end is the cathode terminal and must be held at a more positive potential than the anode to achieve reverse-biased zener operation. This marking is consistent across all 1N53xx devices and is visible on the black epoxy body near one lead.
Is the 1N5367AE3/TR8 RoHS compliant?
Yes, the "e3" suffix in 1N5367AE3/TR8 explicitly denotes RoHS compliance. The device uses annealed matte-tin plating on leads per MIL-STD-750 Method 2026 and meets EU Directive 2011/65/EU requirements, including lead content below 1000 ppm and full exemption from restricted substances.
1N5367AE3/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):
- 43 V
- Tolerance:
- ±10%
- 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
1N5367AE3/TR8 FAQ
1.How can I place an order for 1N5367AE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5367AE3/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 1N5367AE3/TR8 reliable?
The price and inventory of 1N5367AE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5367AE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5367AE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5367AE3/TR8 transactions.
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4.How is shipping managed for 1N5367AE3/TR8?
1N5367AE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5367AE3/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 1N5367AE3/TR8?
For technical support, including 1N5367AE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5367AE3/TR8 requirements.
6.How does Aetrix verify that 1N5367AE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5367AE3/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 1N5367AE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5367AE3/TR8?
All 1N5367AE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5367AE3/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 1N5367AE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5367AE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5367AE3/TR8 Tags
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