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Microchip Technology 1N4753CP/TR12
- Part No.:
- 1N4753CP/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4753CP/TR12.pdf
- Description:
- DIODE ZENER 36V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,990
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Product details
Overview
1N4753CP/TR12 from Microsemi is a 1.0 W plastic-encapsulated Zener diode with nominal Zener voltage of 36 V, ±5% tolerance (A-suffix), DO-41 package, and 7.0 mA test current. It regulates voltage across wide operating current and temperature ranges (-65°C to +150°C), and is used in power supply feedback loops, overvoltage protection, and reference voltage generation.
For engineers reviewing the 1N4753CP/TR12 datasheet, 1N4753CP/TR12 pinout, 1N4753CP/TR12 application, or 1N4753CP/TR12 equivalent, key selection criteria include Zener voltage stability at 7.0 mA, 50 Ω dynamic impedance at IZT, 0.25 A maximum regulator current at TA = 50°C, RoHS-compliant "e3" plating, and tape-and-reel packaging (TR12).
Technical Context
This device operates in reverse breakdown to maintain stable voltage under varying load and line conditions. Its 36 V Zener voltage exhibits a positive temperature coefficient above ~5 V, with typical TC near +3.5 mV/°C per Figure 3 of the datasheet.
Designed for axial-lead mounting on FR4 PCBs, it delivers 1.0 W steady-state dissipation at TL < 105°C (3/8″ lead length) or TA < 45°C with specified copper pad geometry, and features 105°C/W junction-to-ambient thermal resistance under those conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±5% at 7.0 mA - defines precise regulation point for feedback or clamping circuits |
| Power Dissipation | 1.0 W at TL < 105°C - sets maximum continuous DC power handling with proper lead heatsinking |
| Dynamic Impedance (ZZT) | 50 Ω at IZT = 7.0 mA - determines output voltage variation under changing load current |
| Max Regulator Current (IZM) | 0.25 A at TA = 50°C - limits safe peak reverse current without thermal runaway |
| Reverse Leakage (IR) | 5 μA max at VR = 27.4 V - ensures low standby power loss below regulation threshold |
| Thermal Resistance (RθJA) | 105°C/W on FR4 (1 oz Cu, 4 mm² pad) - enables thermal design margin estimation for PCB layout |
| Forward Voltage (VF) | 1.2 V max at 200 mA - relevant for polarity-check or ESD protection forward-bias use cases |
Pinout & Package
DO-41 (DO-204AL) plastic axial-leaded package with cathode indicated by color band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded end | Connected to lower-potential node; reverse-biased during Zener operation |
| Cathode | Banded end | Connected to higher-potential node; defines regulated output voltage referenced to anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered 1N47xxAP series | Industry-standard footprint and electrical behavior enabling direct replacement in legacy designs |
| Moisture Sensitivity Level 1 | No dry pack required before PCB assembly - reduces manufacturing overhead and handling risk |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Robust handling during manual or automated assembly without special ESD controls |
| RoHS-compliant "e3" termination | Meets global environmental compliance requirements without sacrificing solderability or reliability |
| Tape-and-reel packaging (TR12) | Enables high-speed automated pick-and-place placement with standard reel logistics (EIA-296) |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Provides stable voltage reference for optocoupler-based feedback in isolated AC/DC converters. IC Role / Device Role / Timing Role: Zener diode acting as precision shunt reference in TL431-like topology. Use Value: Maintains 36 V regulation at 7.0 mA with 50 Ω dynamic impedance, ensuring <±1% output voltage stability across line/load variations. | Use Scenario: Supplies excitation voltage for bridge-based pressure transducers in factory automation systems. IC Role / Device Role / Timing Role: Shunt regulator establishing fixed bias point for analog sensor front-end. Use Value: Delivers low-drift 36 V reference with <5 μA leakage at 27.4 V, minimizing sensor offset error and power consumption. |
| Overvoltage Clamp for MCU I/O | Programmable Threshold Detector |
Use Scenario: Protects 3.3 V or 5 V microcontroller GPIO pins against transient surges up to 36 V. IC Role / Device Role / Timing Role: Reverse-biased Zener clamping excess voltage to safe levels. Use Value: Limits pin voltage to ≤36 V with fast response, leveraging 0.25 A surge capability and 1.2 V forward drop for bidirectional protection. | Use Scenario: Sets trip point for comparator-based battery undervoltage lockout in portable medical devices. IC Role / Device Role / Timing Role: Precision voltage threshold element defining activation level. Use Value: Enables accurate 36 V detection with ±5% tolerance and predictable knee impedance, supporting reliable system shutdown sequencing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4753A | No "P" suffix → glass-body DO-35 package; higher thermal resistance (125°C/W vs. 105°C/W) | Less suitable for high-power-density PCBs requiring efficient heat conduction through leads | Select only if legacy DO-35 footprint or higher-temperature ambient (>105°C lead temp) is required |
| MMSZ5245B-TP | Surface-mount SOD-123; 36 V ±5%, 200 mW rating; 30 Ω ZZT at 5 mA | Lower power handling and different thermal path - not interchangeable without derating or layout change | Choose for space-constrained designs where 1 W dissipation is unnecessary and reflow compatibility is prioritized |
Compared with 1N4753A and MMSZ5245B-TP, the 1N4753CP/TR12 offers superior 1.0 W power handling in a moisture-insensitive, ESD-robust axial package with optimized thermal performance for through-hole power regulation - making it preferred for industrial power supplies and ruggedized analog references.
Availability
1N4753CP/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, sensor signal conditioning, and overvoltage protection circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant procurement.
Supply support for 1N4753CP/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, RF, and timing solutions for aerospace, defense, and industrial markets.
The 1N47xxAP series was developed to deliver JEDEC-standard, high-stability Zener regulation in plastic packages for cost-sensitive yet thermally demanding power and reference applications.
FAQ
What is the Zener voltage tolerance for 1N4753CP/TR12?
The "A" suffix in 1N4753CP/TR12 specifies ±5% tolerance on the nominal 36 V Zener voltage, measured at 7.0 mA test current and 25°C lead temperature. This tolerance is confirmed in the Electrical Characteristics table and applies across the full operating temperature range of –65°C to +150°C.
Does 1N4753CP/TR12 require dry packing before PCB assembly?
No. The 1N4753CP/TR12 is moisture sensitivity level (MSL) 1 per IPC/JEDEC J-STD-020B, meaning it has no floor life limitation and does not require dry pack or baking prior to reflow or wave soldering - simplifying manufacturing flow and reducing handling risk.
What is the maximum reverse current for 1N4753CP/TR12 at 27.4 V?
At VR = 27.4 V (75% of nominal VZ), the maximum reverse leakage current for 1N4753CP/TR12 is 5 μA, as specified in the Electrical Characteristics table. This low leakage supports stable reference performance in high-impedance analog circuits.
Can 1N4753CP/TR12 be used in surface-mount designs?
No - the 1N4753CP/TR12 uses a DO-41 axial-leaded package intended for through-hole mounting. For surface-mount equivalents, Microsemi offers the SMAJ4753A (SMA) and MLL4753A (SOD-123) families, which share the same 36 V, ±5% specification but differ in package, power rating, and thermal behavior.
What does the "TR12" suffix indicate in 1N4753CP/TR12?
The "TR12" suffix indicates tape-and-reel packaging per EIA-296 standard, with 12,000 units per reel. This format supports automated pick-and-place assembly and is compatible with standard SMT feeders, while preserving the RoHS-compliant "e3" termination and plastic DO-41 construction of the base 1N4753CP part.
1N4753CP/TR12 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±2%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 50 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 27.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
1N4753CP/TR12 FAQ
1.How can I place an order for 1N4753CP/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4753CP/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 1N4753CP/TR12 reliable?
The price and inventory of 1N4753CP/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4753CP/TR12 is usually 5 days.
3.What payment methods are accepted for 1N4753CP/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4753CP/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4753CP/TR12?
1N4753CP/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4753CP/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 1N4753CP/TR12?
For technical support, including 1N4753CP/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4753CP/TR12 requirements.
6.How does Aetrix verify that 1N4753CP/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N4753CP/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 1N4753CP/TR12 meets industry standards.
7.What is the process for return or replacement of 1N4753CP/TR12?
All 1N4753CP/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4753CP/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 1N4753CP/TR12 part is unused and in its original packaging.
Return procedure for 1N4753CP/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4753CP/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
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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
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SMAZ12-13-F
Diodes Incorporated
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