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Microchip Technology 1N4760P/TR8
- Part No.:
- 1N4760P/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4760P/TR8.pdf
- Description:
- DIODE ZENER 68V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,247
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Product details
Overview
1N4760P/TR8 from Microsemi is a 1.0 W plastic-encapsulated Zener diode with nominal zener voltage of 68 V, ±5% tolerance (A suffix), 3.7 mA test current (IZT), 150 Ω dynamic impedance (ZZT), and 13 mA maximum regulator current (IZM) at TA = 50°C. It operates across –65°C to +150°C and is used for precision voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation.
For engineers reviewing the 1N4760P/TR8 datasheet, 1N4760P/TR8 pinout, 1N4760P/TR8 application, or 1N4760P/TR8 equivalent, key selection factors include its DO-41 axial-leaded package, 68 V regulation threshold, thermal resistance of 45°C/W (junction-to-lead), RoHS-compliant "e3" variant availability, and tape-and-reel packaging (TR8 suffix).
Technical Context
The 1N4760P/TR8 functions as a reverse-biased voltage reference device, maintaining stable 68 V output across a wide operating current range (IZK = 0.25 mA to IZM = 13 mA). Its sharp breakdown knee (verified by ZZK = 13 Ω at IZK) ensures low regulation error under varying load conditions.
Designed for through-hole 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 layout), and exhibits moisture sensitivity Level 1 per J-STD-020B-no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 68 V ±5% - defines precise regulation threshold for feedback and clamping circuits |
| Test Current (IZT) | 3.7 mA - operating point where VZ and ZZT are guaranteed per JEDEC spec |
| Dynamic Impedance (ZZT) | 150 Ω @ IZT - determines regulation stability under small-signal AC ripple |
| Max Regulator Current (IZM) | 13 mA at TA = 50°C - sets upper DC current limit before thermal derating applies |
| Power Dissipation | 1.0 W at TL < 105°C - defines safe continuous power handling with proper lead heatsinking |
| Thermal Resistance | 45°C/W junction-to-lead - enables thermal design using lead length as heatsink path |
| Operating Temperature | –65°C to +150°C - supports industrial and automotive under-hood environments |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded plastic molded case with cathode band marking; RoHS-compliant matte-tin plating; weight 0.7 g; UL94V-0 epoxy body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse bias applied to cathode for regulation |
| Cathode | Zener regulation terminal / voltage reference output | Banded end; connected to regulated rail or feedback node; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered 1N47xxAP series | Ensures cross-manufacturer compatibility and standardized electrical behavior |
| Plastic encapsulation (P suffix) | Reduces thermal resistance vs. glass-body variants (e.g., 1N4760G), improving power handling |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and bake-out prior to assembly |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Enables handling without special static control in standard production environments |
| Tape-and-reel packaging (TR8 suffix) | Supports automated pick-and-place insertion for high-volume manufacturing |
Applications
| Power Supply Feedback Regulation | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Stabilizing output voltage in linear and switching power supplies via optocoupler feedback loop. IC Role / Device Role / Timing Role: Zener reference element providing precise 68 V threshold to trigger error amplifier or shunt controller. Use Value: Maintains ±5% regulation accuracy across temperature and line/load variations due to low ZZT and sharp knee impedance. | Use Scenario: Protecting downstream ICs from transient voltage spikes exceeding 68 V in DC bus lines. IC Role / Device Role / Timing Role: Passive clamp device conducting only when reverse voltage exceeds 68 V. Use Value: Absorbs surge energy up to 2000 mA (ISM) without degradation, leveraging 1.0 W steady-state rating and robust thermal path. |
| Voltage Reference Generator | Industrial Sensor Excitation |
Use Scenario: Providing stable excitation voltage for precision analog sensors requiring fixed bias. IC Role / Device Role / Timing Role: Two-terminal passive reference source replacing active references in cost-sensitive designs. Use Value: Delivers 68 V reference with <±0.1%/°C tempco (per Figure 3) and minimal load dependence below 13 mA. | Use Scenario: Biasing resistive temperature detectors (RTDs) or strain gauges in process control transmitters. IC Role / Device Role / Timing Role: High-voltage excitation source enabling improved signal-to-noise ratio in 4–20 mA loop-powered systems. Use Value: Supports operation over –65°C to +150°C ambient, matching industrial sensor environmental requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4760A | No TR8 tape-and-reel packaging; bulk or ammo pack only; identical electrical specs | Limited to manual or semi-automated assembly; no SMT-line compatibility | Select 1N4760A when volume production automation is not required |
| MMSZ4708T1G | Surface-mount SOD-123 package; 68 V, 500 mW rating; higher ZZT (200 Ω); different thermal profile | Not suitable for same power dissipation or thermal environment; requires PCB redesign | Select MMSZ4708T1G only when board space constraints mandate SMT and power demand ≤500 mW |
Compared with 1N4760A and MMSZ4708T1G, the 1N4760P/TR8 uniquely combines 1.0 W DO-41 packaging, tape-and-reel automation support, and JEDEC-standardized 68 V regulation-making it optimal for high-reliability through-hole power supply designs requiring consistent thermal performance and supply chain continuity.
Availability
1N4760P/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, overvoltage protection circuits, and precision voltage reference designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N4760P/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 1N47xxAP series was developed to deliver JEDEC-standardized, high-stability Zener regulation in ruggedized plastic packages for mission-critical power conditioning and protection applications.
FAQ
What is the zener voltage tolerance of the 1N4760P/TR8?
The 1N4760P/TR8 has a nominal zener voltage of 68 V with a tolerance of ±5%, indicated by the "A" suffix in the part number per JEDEC registration. This tolerance is guaranteed at TL = 25°C ±8°C with 90 seconds of dc current application, and remains stable across its full operating temperature range of –65°C to +150°C.
Does the 1N4760P/TR8 require dry packing before PCB assembly?
No, the 1N4760P/TR8 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-reducing manufacturing overhead and eliminating moisture-related popcorning risk during reflow or wave soldering.
What is the maximum surge current rating for the 1N4760P/TR8?
The 1N4760P/TR8 has a maximum surge current (ISM) rating of 2000 mA, measured using a ½ sine-wave pulse of 1/120 second duration at 25°C ambient. This capability allows it to absorb short-duration overvoltage transients in power rails without degradation, supporting robust protection in industrial and telecom power systems.
How does the thermal resistance of the 1N4760P/TR8 compare between junction-to-lead and junction-to-ambient?
The 1N4760P/TR8 has a junction-to-lead thermal resistance of 45°C/W (measured at 3/8″ lead length from body), significantly lower than its junction-to-ambient value of 105°C/W on FR4 with defined copper pads. This confirms that effective heatsinking relies on lead termination-designers must maintain ≥10 mm lead length and use adequate copper pour to sustain 1.0 W continuous dissipation.
Is the 1N4760P/TR8 RoHS compliant?
Yes, the 1N4760P/TR8 is RoHS compliant. Microsemi offers this device with an "e3" suffix (e.g., 1N4760P-e3/TR8) indicating annealed matte-tin plating per RoHS Directive 2011/65/EU. The base 1N4760P/TR8 meets RoHS requirements as shipped, with no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE content above threshold limits.
1N4760P/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):
- 68 V
- Tolerance:
- ±10%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 150 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 51.7 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)
1N4760P/TR8 FAQ
1.How can I place an order for 1N4760P/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4760P/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 1N4760P/TR8 reliable?
The price and inventory of 1N4760P/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4760P/TR8 is usually 5 days.
3.What payment methods are accepted for 1N4760P/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4760P/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4760P/TR8?
1N4760P/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4760P/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 1N4760P/TR8?
For technical support, including 1N4760P/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4760P/TR8 requirements.
6.How does Aetrix verify that 1N4760P/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N4760P/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 1N4760P/TR8 meets industry standards.
7.What is the process for return or replacement of 1N4760P/TR8?
All 1N4760P/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4760P/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 1N4760P/TR8 part is unused and in its original packaging.
Return procedure for 1N4760P/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4760P/TR8 Tags
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