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Microchip Technology 1N4759AP/TR12
- Part No.:
- 1N4759AP/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4759AP/TR12.pdf
- Description:
- DIODE ZENER 62V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,019
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Product details
Overview
1N4759AP/TR12 from Microsemi is a 1.0 W axial-lead silicon Zener diode with nominal Zener voltage of 62 V, ±5% tolerance (A suffix), 4.0 mA test current (IZT), 125 Ω dynamic impedance at IZT, and maximum reverse current of 5 μA at 47.1 V. It regulates voltage in power supply reference and overvoltage protection circuits across industrial temperature range.
For engineers reviewing the 1N4759AP/TR12 datasheet, 1N4759AP/TR12 pinout, 1N4759AP/TR12 application, or 1N4759AP/TR12 equivalent, key selection factors include its DO-41 package thermal resistance (45 °C/W junction-to-lead), 1500 mA maximum surge current, and RoHS-compliant e3 plating option confirmed in Microsemi's REV C datasheet.
Technical Context
This discrete Zener operates in reverse breakdown to maintain stable voltage across varying load and line conditions. Its 62 V regulation point targets mid-range DC bus monitoring and feedback loop references where tighter than 10% tolerance is required but ultra-precision is unnecessary.
The device uses standard silicon PN junction construction with cathode band marking, rated for -65 °C to +150 °C operation, and exhibits 0.085 %/°C typical temperature coefficient per Figure 3 of the datasheet-consistent with Zeners above 50 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V ±5% at 4.0 mA - defines stable regulation point for feedback networks and clamp thresholds |
| Power Dissipation | 1.0 W at 25 °C - sets maximum continuous DC power handling before thermal derating applies |
| Dynamic Impedance (ZZT) | 125 Ω at 4.0 mA - determines output voltage variation under changing load current |
| Reverse Leakage (IR) | 5 μA max at 47.1 V - ensures minimal quiescent current in high-impedance bias networks |
| Surge Current (ISM) | 2000 mA peak - supports transient overvoltage clamping without failure |
| Thermal Resistance | 45 °C/W junction-to-lead - enables thermal design using 3/8″ lead length as heatsink path |
| Operating Temperature | -65 °C to +150 °C - validated for automotive under-hood and industrial control environments |
Pinout & Package
Package: DO-41 (DO-204AL) plastic molded case with axial leads; cathode identified by colored band; RoHS-compliant matte-tin plating; weight 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded lead | Connected to lower-potential node; forward voltage ≤1.2 V @ 200 mA |
| Cathode | Banded lead | Connected to higher-potential node during Zener operation; carries regulated output current |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered 1N47xxAP series | Ensures cross-manufacturer compatibility and standardized test conditions per JEDEC JESD24 |
| Plastic encapsulation (P suffix) | Reduces thermal resistance vs. glass-body variants, improving power handling in compact layouts |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints for SMT reflow and manual assembly |
| Nonsensitive to ESD | Withstands >4 kV HBM per MIL-STD-750 Method 1020-no special handling needed in production |
| Tape-and-reel packaging (TR12) | Enables automated pick-and-place placement with EIA-296 compliant carrier tape |
Applications
| Power Supply Feedback Reference | Overvoltage Clamp Circuit |
|---|---|
Use Scenario: Stabilizing output voltage in linear regulator feedback divider networks. IC Role / Device Role / Timing Role: Zener diode providing precise 62 V reference to error amplifier input. Use Value: Maintains ±5% regulation accuracy across 4.0–100 mA operating range with low dynamic impedance. | Use Scenario: Protecting downstream circuitry from transient voltage spikes on 48 V DC bus lines. IC Role / Device Role / Timing Role: Shunt element diverting excess energy when bus exceeds 62 V threshold. Use Value: Withstands 2000 mA surge current pulses without degradation, enabling robust system-level protection. |
| Industrial Sensor Excitation | Programmable Threshold Detector |
Use Scenario: Providing stable excitation voltage for resistive bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Voltage reference source for constant-current generator biasing. Use Value: Delivers low-drift 62 V reference across -40 °C to +85 °C ambient with <0.1 %/°C TC. | Use Scenario: Setting trip point for comparator-based undervoltage lockout in telecom power systems. IC Role / Device Role / Timing Role: Precision voltage threshold element defining 62 V enable/disable boundary. Use Value: Enables accurate hysteresis design using ±5% tolerance and verified knee impedance below 20 Ω at IZK. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4759A (non-P, non-TR) | Same electrical specs but glass-body (DO-35) package; higher thermal resistance (75 °C/W) | Limited to lower-power or through-hole prototyping; not suitable for high-reliability plastic-encapsulated designs | Select 1N4759AP/TR12 when DO-41 mechanical robustness and lower θJL are required |
| MMSZ4711-TP (Micro Commercial) | Surface-mount SOD-123; 62 V ±5%; 1.0 W; 100 Ω ZZT; RoHS only | Requires PCB redesign for SMT; lacks tape-and-reel TR12 configuration and MIL screening options | Choose MMSZ4711-TP only for space-constrained boards where axial leads are impractical |
Compared with 1N4759A and MMSZ4711-TP, the 1N4759AP/TR12 offers optimal balance of proven DO-41 reliability, JEDEC-standardized test conditions, and factory-verified surge capability-making it preferred for industrial power supply and protection designs requiring long-term stability.
Availability
1N4759AP/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, telecom rectifier modules, and programmable logic controller (PLC) analog input stages requiring stable component supply and full traceability.
Supply support for 1N4759AP/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 1N47xxAP series was designed specifically for ruggedized voltage regulation in harsh-environment power systems where long-term parametric stability and MIL-qualified screening options are essential.
FAQ
What is the Zener voltage tolerance for 1N4759AP/TR12?
The 1N4759AP/TR12 has a nominal Zener voltage of 62 V with ±5% tolerance, as indicated by the "A" suffix in the part number per Microsemi's REV C datasheet. This tolerance is measured at 4.0 mA test current and 25 °C lead temperature, and applies across the full operating temperature range of -65 °C to +150 °C.
Does 1N4759AP/TR12 support automated assembly?
Yes, the "TR12" suffix confirms that 1N4759AP/TR12 is supplied in EIA-296 compliant tape-and-reel format, optimized for pick-and-place machines. The DO-41 package's axial lead geometry and 0.7 g weight meet standard feeder requirements, and the matte-tin plating ensures reliable solder wetting during reflow.
What is the maximum surge current rating for 1N4759AP/TR12?
The 1N4759AP/TR12 is rated for 2000 mA peak reverse surge current (ISM) under 1/120 second half-sine wave conditions at 25 °C ambient, as specified in Microsemi's datasheet Table on page 1. This enables use in transient voltage suppression applications without derating for short-duration overloads.
Is 1N4759AP/TR12 RoHS compliant?
Yes, the "e3" designation in the full manufacturer part number (1N4759AP,e3/TR12) confirms RoHS compliance per EU Directive 2011/65/EU. The terminals feature annealed matte-tin plating, and the void-free epoxy body meets UL94V-0 flammability rating-both verified in Microsemi's official documentation.
How does thermal resistance differ between 1N4759AP/TR12 and glass-body variants?
The 1N4759AP/TR12 (plastic DO-41) has a junction-to-lead thermal resistance of 45 °C/W at 3/8″ lead length, versus 75 °C/W for the glass-body 1N4759A (DO-35). This 40% lower θJL allows higher continuous power dissipation in thermally constrained layouts without exceeding 150 °C junction temperature.
1N4759AP/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):
- 62 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 125 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 47.1 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)
1N4759AP/TR12 FAQ
1.How can I place an order for 1N4759AP/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4759AP/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 1N4759AP/TR12 reliable?
The price and inventory of 1N4759AP/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4759AP/TR12 is usually 5 days.
3.What payment methods are accepted for 1N4759AP/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4759AP/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4759AP/TR12?
1N4759AP/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4759AP/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 1N4759AP/TR12?
For technical support, including 1N4759AP/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4759AP/TR12 requirements.
6.How does Aetrix verify that 1N4759AP/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N4759AP/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 1N4759AP/TR12 meets industry standards.
7.What is the process for return or replacement of 1N4759AP/TR12?
All 1N4759AP/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4759AP/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 1N4759AP/TR12 part is unused and in its original packaging.
Return procedure for 1N4759AP/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4759AP/TR12 Tags
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