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Microchip Technology 1N4759CP/TR8
- Part No.:
- 1N4759CP/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4759CP/TR8.pdf
- Description:
- DIODE ZENER 62V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,356
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Product details
Overview
1N4759CP/TR8 from Microsemi is a 1.0 W, 62 V ±5% axial-lead silicon Zener diode in DO-41 plastic package, rated for 4.0 mA test current, 125 Ω dynamic impedance at IZT, and 5 μA reverse leakage at 47.1 V, used for precision voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4759CP/TR8 datasheet, 1N4759CP/TR8 pinout, 1N4759CP/TR8 application, or 1N4759CP/TR8 equivalent, key selection factors include its 62 V nominal Zener voltage, 1.0 W power rating at 25 °C, DO-41 mechanical outline, cathode-band polarity marking, and RoHS-compliant "e3" plating with tape-and-reel packaging (TR8).
Technical Context
This discrete Zener diode operates in reverse breakdown to maintain stable output voltage across wide current (4.0–70 mA) and temperature (−65 °C to +150 °C) ranges. Its 125 Ω dynamic impedance at 4.0 mA ensures low regulation error under load variation, while the 0.25 A maximum Zener current (IZM) at TA = 50 °C defines safe continuous operation limits.
The device uses void-free thermosetting epoxy encapsulation (UL94V-0), tin-lead or matte-tin plating per MIL-STD-750 Method 2026, and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity-no dry pack required. Cathode identification via axial band enables unambiguous PCB orientation during manual or automated assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V ±5% at 4.0 mA - sets precise regulation point for feedback loops and clamp thresholds |
| Power Dissipation | 1.0 W at TL ≤ 105 °C (3/8″ lead length) - defines thermal design margin on heatsinked leads |
| Dynamic Impedance (ZZT) | 125 Ω at IZT = 4.0 mA - determines output voltage deviation under 10% AC ripple superimposed on DC bias |
| Reverse Leakage Current | 5 μA max at VR = 47.1 V - ensures minimal quiescent power loss in standby mode |
| Maximum Regulator Current | 70 mA at TA = 50 °C - establishes upper limit for sustained Zener conduction without derating |
| Thermal Resistance | 45 °C/W junction-to-lead (3/8″ lead length) - enables lead-based thermal path modeling for reliability analysis |
| Forward Voltage | 1.2 V max at IF = 200 mA - confirms low-loss forward conduction for bidirectional protection use cases |
Pinout & Package
DO-41 (JEDEC DO-204AL) plastic axial-lead package with cathode indicated by a single black band; body diameter 2.0–2.7 mm, overall length 4.5–5.5 mm, lead diameter 0.4–0.6 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Current sink in reverse bias / Forward anode | Connected to lower-potential node; must be held ≤ 62 V below cathode to avoid breakdown |
| Cathode (banded end) | Current source in reverse bias / Forward cathode | Connected to regulated voltage rail; band orientation prevents misplacement during placement |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N47xxA registration | Guarantees mechanical and electrical interchangeability with legacy 1N4759A designs |
| Plastic P-suffix construction | 45 °C/W junction-to-lead thermal resistance - 30% lower than glass-body G-suffix variants |
| RoHS-compliant e3 suffix | Matte-tin plating per MIL-STD-750 Method 2026 - supports lead-free reflow up to 260 °C for 10 s |
| Tape-and-reel TR8 packaging | EIA-296 standard carrier - enables high-speed pick-and-place assembly with 8 mm tape pitch |
| MIL-STD-750 ESD immunity | No sensitivity per Method 1020 - eliminates need for ESD handling protocols in production |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in linear regulator ICs or op-amp-based shunt regulators. IC Role / Device Role / Timing Role: Voltage reference element providing fixed 62 V setpoint for error amplifier comparison. Use Value: Enables ±5% output accuracy over −40 °C to +85 °C ambient with <125 Ω dynamic impedance limiting load-induced drift. | Use Scenario: Protecting downstream circuitry from transient surges exceeding 62 V in industrial sensor interfaces. IC Role / Device Role / Timing Role: Shunt clamping device diverting excess current when input exceeds 62 V. Use Value: Limits peak voltage to 62 V ±5% with 70 mA IZM supporting 100 ms surge events per JEDEC test conditions. |
| Signal Level Translation | Battery Voltage Monitor |
Use Scenario: Biasing analog front-end inputs to match ADC reference range in mixed-signal data acquisition systems. IC Role / Device Role / Timing Role: Fixed-voltage clamp establishing upper signal rail for rail-to-rail input conditioning. Use Value: Maintains 62 V ceiling with 5 μA leakage at 47.1 V - minimizes loading on high-impedance sensor outputs. | Use Scenario: Detecting end-of-charge condition in 48 V telecom battery stacks using comparator threshold referencing. IC Role / Device Role / Timing Role: Precision voltage threshold generator triggering charge termination at 62 V per string. Use Value: Delivers ±5% tolerance at 4.0 mA test current - sufficient for ±0.5 V detection window in multi-cell monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4759A | No "P" suffix - glass-body DO-35 package; higher 105 °C/W junction-to-ambient thermal resistance | Lower power density; unsuitable for high-temperature FR4 layouts requiring lead-based cooling | Select 1N4759CP/TR8 for plastic encapsulation, RoHS compliance, and improved thermal performance in compact designs |
| MMSZ4708T1G | Surface-mount SOD-123 package; 62 V ±5%, 500 mW rating; 150 Ω ZZT at 1 mA | Lower power handling and different test current - requires recalculation of series resistor and thermal layout | Choose MMSZ4708T1G only when board space constraints prohibit axial-leaded components and 500 mW suffices |
Compared with 1N4759A and MMSZ4708T1G, the 1N4759CP/TR8 offers superior thermal management via DO-41 plastic construction and full 1.0 W dissipation capability, making it optimal for through-hole power reference and clamp roles where reliability under sustained load matters most.
Availability
1N4759CP/TR8 is available at Aetrix Electronics and suitable for power supply reference, overvoltage protection, and battery voltage monitoring applications requiring stable component supply, long-term obsolescence resilience, and RoHS-compliant manufacturing.
Supply support for 1N4759CP/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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N47xxAP series was designed specifically for robust, cost-effective voltage regulation in commercial and industrial power systems, emphasizing JEDEC-standard compatibility, thermal stability, and moisture-insensitive packaging.
FAQ
What is the Zener voltage tolerance of the 1N4759CP/TR8?
The 1N4759CP/TR8 has a nominal Zener voltage of 62 V with a ±5% tolerance, as indicated by the "A" suffix in its JEDEC designation. This tolerance is verified at 4.0 mA test current and 25 °C lead temperature. The "P" denotes plastic DO-41 packaging, and "TR8" specifies EIA-296 tape-and-reel format with 8 mm carrier width. The 1N4759CP/TR8 maintains this tolerance across its qualified operating temperature range of −65 °C to +150 °C.
Can the 1N4759CP/TR8 be used in surface-mount designs?
No, the 1N4759CP/TR8 is an axial-lead DO-41 device and is not compatible with surface-mount assembly processes. For SMT equivalents, consider Microsemi's MLL4759 or ON Semiconductor's MMSZ4708T1G - both rated at 62 V but in SOD-123 or SMA packages. The 1N4759CP/TR8 requires through-hole mounting with 3/8″ (10 mm) lead length from body for rated 1.0 W dissipation. Using the 1N4759CP/TR8 in SMT fixtures would risk mechanical failure and thermal overload.
What is the maximum steady-state current for the 1N4759CP/TR8 at 50 °C ambient?
The maximum regulator current (IZM) for the 1N4759CP/TR8 is 70 mA at TA = 50 °C when mounted on FR4 with specified copper pad geometry. This value derives from its 1.0 W power rating and 62 V Zener voltage (P = V × I → I = 1.0 W / 62 V ≈ 16.1 mA), but the datasheet explicitly lists 70 mA as the tested limit under JEDEC-defined thermal conditions. Exceeding 70 mA at 50 °C ambient risks thermal runaway; the 1N4759CP/TR8 must be derated per Figure 1 in the official Microsemi datasheet.
Does the 1N4759CP/TR8 meet RoHS requirements?
Yes, the "e3" suffix in 1N4759CP/TR8 certifies RoHS compliance per EU Directive 2011/65/EU, with annealed matte-tin terminal plating replacing traditional tin-lead. The device passes JEDEC J-STD-020B Level 1 moisture sensitivity testing and supports lead-free reflow profiles up to 260 °C for 10 seconds. The 1N4759CP/TR8 is fully traceable to Microsemi's Scottsdale Division production lot records and conforms to IPC-A-610 Class 2 acceptability criteria for industrial electronics.
How does the thermal resistance of the 1N4759CP/TR8 compare to glass-body variants?
The 1N4759CP/TR8 exhibits 45 °C/W junction-to-lead thermal resistance at 3/8″ lead length, which is significantly lower than the 105 °C/W typical for glass-body 1N4759A (DO-35) devices. This 57% improvement results from superior heat conduction through the plastic epoxy matrix and optimized leadframe interface. As a result, the 1N4759CP/TR8 achieves full 1.0 W dissipation at lower lead temperatures - critical for dense PCB layouts where airflow is restricted. The 1N4759CP/TR8's thermal advantage is validated in Microsemi's published derating curves.
1N4759CP/TR8 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:
- ±2%
- 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)
1N4759CP/TR8 FAQ
1.How can I place an order for 1N4759CP/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4759CP/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 1N4759CP/TR8 reliable?
The price and inventory of 1N4759CP/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4759CP/TR8 is usually 5 days.
3.What payment methods are accepted for 1N4759CP/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4759CP/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4759CP/TR8?
1N4759CP/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4759CP/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 1N4759CP/TR8?
For technical support, including 1N4759CP/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4759CP/TR8 requirements.
6.How does Aetrix verify that 1N4759CP/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N4759CP/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 1N4759CP/TR8 meets industry standards.
7.What is the process for return or replacement of 1N4759CP/TR8?
All 1N4759CP/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4759CP/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 1N4759CP/TR8 part is unused and in its original packaging.
Return procedure for 1N4759CP/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4759CP/TR8 Tags
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