Microchip Technology 1N4753APE3/TR12
- Part No.:
- 1N4753APE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4753APE3/TR12.pdf
- Description:
- DIODE ZENER 36V 1W DO204AL
- Quantity:
- Payment:

- Shipping:

Inventory:6,435
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Product details
Overview
1N4753APE3/TR12 from Microsemi is a 1.0 W axial-lead silicon Zener diode with nominal Zener voltage of 36 V, ±5% tolerance (A suffix), 7.0 mA test current (IZT), 50 Ω dynamic impedance (ZZT), and 1000 mA maximum regulator current (IZM) at TA = 50°C. It operates across –65°C to +150°C and regulates voltage in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4753APE3/TR12 datasheet, 1N4753APE3/TR12 pinout, 1N4753APE3/TR12 application, or 1N4753APE3/TR12 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (45°C/W junction-to-lead), surge current rating (1000 mA), RoHS-compliant matte-tin plating, and DO-41 package compatibility with standard axial-lead PCB layouts.
Technical Context
This Zener diode functions in reverse-bias breakdown mode to maintain stable voltage across its terminals under varying load and temperature conditions. Its 36 V nominal regulation point targets mid-range voltage reference needs in linear regulators and feedback networks.
The device features a void-free thermosetting epoxy case (UL94V-0), cathode band polarity marking, and moisture sensitivity level 1 per IPC/JEDEC J-STD-020B-eliminating dry-pack requirements. Thermal performance is defined for both lead-temperature (TL) and ambient (TA) mounting conditions on FR4 board.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±5% at IZT = 7.0 mA - defines precise regulation threshold for feedback loops |
| Power Dissipation | 1.0 W at TL < 105°C (3/8″ lead length) - sets continuous thermal limit in leaded mounting |
| Dynamic Impedance (ZZT) | 50 Ω at IZT = 7.0 mA - indicates low AC impedance for stable regulation under ripple |
| Max Regulator Current (IZM) | 1000 mA at TA = 50°C - determines maximum steady-state shunt current capability |
| Thermal Resistance | 45°C/W junction-to-lead - enables thermal modeling for lead-length-dependent derating |
| Reverse Leakage (IR) | 5 μA max at VR = 27.4 V - ensures minimal quiescent current in standby operation |
| Surge Current (ISM) | 1000 mA (½-sine, 1/120 s) - supports transient overvoltage clamping without failure |
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 | Forward conduction terminal / Zener cathode reference | Connected to lower-potential node; reverse-biased during regulation |
| Cathode | Zener breakdown terminal | Banded end; connected to higher-potential node to enable reverse-bias regulation |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Fully compliant with JEDEC 1N47xxA series standards for interchangeability and testing |
| RoHS-compliant "e3" suffix | Matte-tin plating meets EU RoHS Directive 2011/65/EU without lead or hazardous substances |
| Moisture Sensitivity Level 1 | No dry-pack required before PCB assembly - reduces handling cost and process steps |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - withstands typical handling ESD without parameter shift |
| Plastic P-suffix construction | Lower thermal resistance vs. glass-body (G-suffix) variants - improves power handling in same footprint |
Applications
| Power Supply Reference | Voltage Clamp Protection |
|---|---|
Use Scenario: Stabilizing output voltage in discrete linear regulator circuits using pass transistors and resistive dividers. IC Role / Device Role / Timing Role: Zener diode provides precise 36 V reference for error amplifier feedback network. Use Value: Maintains ±5% regulation accuracy across –65°C to +150°C, supporting industrial-grade power supplies. | Use Scenario: Protecting downstream ICs from transient overvoltage events on 24–48 V DC rails. IC Role / Device Role / Timing Role: Shunts excess energy to ground when rail exceeds 36 V, limiting peak voltage. Use Value: Withstands 1000 mA surge current (1/120 s), enabling robust clamping without degradation. |
| Feedback Loop Compensation | Calibration Voltage Source |
Use Scenario: Setting gain and offset in op-amp-based sensor signal conditioning stages. IC Role / Device Role / Timing Role: Provides stable 36 V bias point for precision resistor-divider networks. Use Value: Low 50 Ω dynamic impedance minimizes regulation error under varying load currents. | Use Scenario: Generating fixed reference voltage for analog-to-digital converter (ADC) input scaling. IC Role / Device Role / Timing Role: Supplies calibrated 36 V source for multi-ratio divider calibration points. Use Value: ±5% tolerance and <5 μA leakage ensure repeatable, low-drift reference under low-power conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4753A (non-e3, non-TR) | Same electrical specs but Sn/Pb plating and bulk packaging - not RoHS-compliant or tape-and-reel ready | Limited to legacy or non-RoHS production environments; no reel support for automated placement | Select only if RoHS compliance and SMT-compatible packaging are not required |
| MMSZ5245B-TP (Micro Commercial Components) | Surface-mount SOD-123 package; 36 V ±5%, 200 mW rating - lower power, different thermal profile | Suitable for space-constrained PCBs but cannot replace 1N4753APE3/TR12 in 1 W applications without derating | Choose for high-density layouts where 1 W dissipation is not needed and reflow compatibility is critical |
Compared with 1N4753A and MMSZ5245B-TP, the 1N4753APE3/TR12 uniquely combines 1 W power handling, DO-41 axial-leaded form factor, RoHS-compliant matte-tin plating, and tape-and-reel delivery - making it optimal for through-hole industrial power supplies requiring traceable, compliant, and production-ready Zener regulation.
Availability
1N4753APE3/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, voltage clamp circuits, and precision reference designs requiring stable component supply, full RoHS compliance, and tape-and-reel packaging for automated assembly.
Supply support for 1N4753APE3/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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The 1N47xxAP series was designed specifically for general-purpose, high-stability Zener regulation in ruggedized power systems where wide temperature range, moisture resilience, and JEDEC-standard interchangeability are essential.
FAQ
What is the Zener voltage tolerance of the 1N4753APE3/TR12?
The 1N4753APE3/TR12 has a nominal Zener voltage of 36 V with ±5% tolerance, as indicated by the "A" suffix in the part number per JEDEC registration. This tolerance applies at 7.0 mA test current and 25°C lead temperature. The device maintains this specification across its full operating temperature range of –65°C to +150°C, ensuring predictable regulation in demanding environments.
Does the 1N4753APE3/TR12 require dry packing before PCB assembly?
No, the 1N4753APE3/TR12 does not require dry packing. It is rated Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it can be stored and assembled without baking or humidity-controlled handling. This simplifies manufacturing logistics and eliminates risk of popcorning during reflow or wave soldering processes.
What is the maximum surge current rating for the 1N4753APE3/TR12?
The 1N4753APE3/TR12 is rated for a maximum surge current (ISM) of 1000 mA, measured using a ½-sine wave pulse of 1/120 second duration at 25°C ambient. This rating supports reliable transient voltage clamping in industrial power rails, such as 24 V or 48 V DC systems, without permanent parameter shift or failure.
Is the 1N4753APE3/TR12 compatible with lead-free soldering processes?
Yes, the 1N4753APE3/TR12 features RoHS-compliant annealed matte-tin plating and is qualified for soldering at 260°C for up to 10 seconds, meeting standard lead-free reflow profiles. Its UL94V-0 epoxy case remains stable under these conditions, and the device retains full electrical performance post-soldering.
How does the thermal resistance of the 1N4753APE3/TR12 affect its power derating?
The 1N4753APE3/TR12 has a junction-to-lead thermal resistance of 45°C/W at 3/8″ (10 mm) lead length. This value directly determines its power derating curve: above 105°C lead temperature, rated power decreases linearly. For example, at TL = 125°C, allowable dissipation drops to 0.56 W. Engineers must model lead length and board copper area to ensure safe operation within this thermal envelope.
1N4753APE3/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:
- ±5%
- 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)
1N4753APE3/TR12 FAQ
1.How can I place an order for 1N4753APE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4753APE3/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 1N4753APE3/TR12 reliable?
The price and inventory of 1N4753APE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4753APE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N4753APE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4753APE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4753APE3/TR12?
1N4753APE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4753APE3/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 1N4753APE3/TR12?
For technical support, including 1N4753APE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4753APE3/TR12 requirements.
6.How does Aetrix verify that 1N4753APE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N4753APE3/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 1N4753APE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N4753APE3/TR12?
All 1N4753APE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4753APE3/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 1N4753APE3/TR12 part is unused and in its original packaging.
Return procedure for 1N4753APE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4753APE3/TR12 Tags

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