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onsemi 1N4736A_NT50A
- Part No.:
- 1N4736A_NT50A
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4736A_NT50A.pdf
- Description:
- DIODE ZENER 6.8V 1W DO41
- Quantity:
- Payment:
- Shipping:
Inventory:7,790
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Product details
Overview
1N4736A_NT50A from ON Semiconductor is a 6.8 V, ±5% tolerance Zener diode in DO-41 glass package, rated for 1.0 W power dissipation at TL ≤ 50°C, with 37 Ω maximum Zener impedance at 35 mA test current and 0.5 μA leakage current at 5.4 V reverse voltage. It provides stable voltage reference in low-power linear regulators and overvoltage protection circuits.
For engineers reviewing the 1N4736A_NT50A datasheet, pinout, applications, or equivalent options, key selection factors include its 6.8 V nominal Zener voltage, DO-41 mechanical compatibility, thermal derating slope (6.67 mW/°C), junction temperature range (–65°C to +200°C), and 700 mA non-repetitive peak reverse surge rating.
Technical Context
This discrete Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its terminals under controlled current conditions. Its performance is defined by three critical operating points: nominal Zener voltage (6.8 V) at 35 mA, knee voltage (5.4 V) at 1 mA, and leakage threshold (≤0.5 μA at 5.4 V).
The device uses a planar epitaxial construction in a hermetically sealed DO-41 glass package with cathode band marking. Thermal performance is specified with 3/8″ lead length at TL = 50°C, and it supports operation up to +200°C junction temperature with full parameter validity over –65°C to +175°C ambient range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.8 V nominal at 35 mA - defines primary regulation point for feedback or clamping circuits |
| Tolerance | ±5% - ensures voltage accuracy within 6.46 V to 7.14 V at rated test current |
| Power Dissipation (PD) | 1.0 W @ TL ≤ 50°C - sets maximum continuous power handling before thermal derating begins |
| Zener Impedance (ZZ) | 37 Ω max @ 35 mA - determines AC regulation stability and ripple rejection capability |
| Leakage Current (IR) | ≤0.5 μA @ VR = 5.4 V - guarantees minimal standby current in high-impedance bias networks |
| Peak Reverse Surge (IZSM) | 700 mA @ 8.3 ms - enables transient overvoltage suppression without failure |
| Junction Temperature Range | –65°C to +200°C - supports operation in automotive under-hood, industrial, and aerospace environments |
Pinout & Package
DO-41 glass axial package with cathode indicated by a single color band on the body. Leads are tinned copper-clad steel, suitable for wave or hand soldering. Mechanical dimensions comply with JEDEC DO-41 standard: overall length 26.7 mm, body diameter 2.1 mm, lead diameter 0.51 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node in shunt regulator | Connected to circuit ground or lower-potential node; carries full load current during regulation |
| Cathode | Reverse-biased Zener terminal / Voltage reference output | Connected to regulated node; maintains 6.8 V relative to anode when reverse current ≥ 35 mA |
Key Features
| Feature | Design Value |
|---|---|
| Stable Zener voltage with tight 5% tolerance | Ensures predictable regulation across production lots without post-assembly trimming |
| Low dynamic impedance (37 Ω) | Minimizes output voltage variation under changing load currents in reference circuits |
| High surge capability (700 mA, 8.3 ms) | Withstands common transient events like ESD or inductive kick without degradation |
| Wide operating temperature range (–65°C to +200°C) | Enables use in extreme-environment applications including engine control and downhole tools |
| Hermetic DO-41 glass package | Provides long-term reliability and moisture resistance superior to plastic-packaged alternatives |
Applications
| Low-Power Voltage Reference | Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing precise 6.8 V reference for op-amp comparators and ADC bias networks in battery-powered sensors. IC Role / Device Role / Timing Role: Shunt voltage reference establishing stable DC potential independent of supply variation. Use Value: Enables <1% measurement accuracy in 12-bit analog front ends using only passive components and a series resistor. |
Use Scenario: Protecting microcontroller I/O pins from accidental 12 V misconnection in industrial HMI panels. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting input voltage to safe levels during fault conditions. Use Value: Clamps voltage to ≤7.14 V (max VZ) before damage occurs, surviving repeated 12 V/100 ms faults. |
| Linear Regulator Feedback | Signal Level Shifting |
|
Use Scenario: Setting output voltage in discrete NPN-based adjustable linear regulators for FPGA core supplies. IC Role / Device Role / Timing Role: Precision voltage divider element defining regulation setpoint via resistive feedback network. Use Value: Delivers ±1.5% output voltage accuracy over line, load, and temperature with no active compensation needed. |
Use Scenario: Converting 5 V logic signals to 3.3 V compatible levels in mixed-voltage digital interfaces. IC Role / Device Role / Timing Role: Passive level translator using forward-biased anode and Zener-clamped cathode. Use Value: Achieves clean 3.3 V high-state with <10 ns propagation delay and no external power required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4736A (ON Semiconductor) | Identical electrical specs and DO-41 package; NT50A suffix indicates specific tape-and-reel packaging per ON Semi standard | No functional difference; NT50A denotes 500-piece reel quantity and moisture-sensitive packaging per J-STD-020 | Select 1N4736A_NT50A when automated SMT placement or humidity-controlled storage is required |
| BZX55C6V8 (Vishay) | Same 6.8 V ±5%, DO-35 package (smaller body, 1.8 mm diameter), 500 mW power rating, higher ZZ (50 Ω) | Lower power handling and higher impedance limit use to sub-25 mA applications; smaller footprint suits space-constrained PCBs | Choose BZX55C6V8 only where board area is critical and power dissipation remains below 0.5 W |
Compared with 1N4736A_NT50A, the base 1N4736A offers identical performance but different packaging logistics, while BZX55C6V8 trades power capability and impedance for size reduction-making the NT50A variant optimal for high-reliability, medium-power industrial designs requiring traceable reel delivery.
Availability
1N4736A_NT50A is available at Aetrix Electronics and suitable for voltage reference, overvoltage protection, and linear regulator feedback applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for 1N4736A_NT50A 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
ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 1N47xxA series was designed specifically for general-purpose Zener regulation and voltage clamping in cost-sensitive, high-volume applications where reliability, wide temperature operation, and JEDEC-standard packaging are essential.
FAQ
What is the Zener voltage tolerance for 1N4736A_NT50A?
The 1N4736A_NT50A has a guaranteed Zener voltage tolerance of ±5% at 35 mA test current, meaning its actual breakdown voltage falls between 6.46 V and 7.14 V under standard test conditions. This tolerance is maintained across the full operating temperature range and is verified per ON Semiconductor's 1N4736AT/D datasheet Rev. 8.
Can 1N4736A_NT50A be used in surface-mount designs?
No - the 1N4736A_NT50A uses a DO-41 axial glass package intended for through-hole mounting. Its leads are not configured for gull-wing or J-lead SMT assembly. For surface-mount equivalents, consider SOD-123 or SOD-323 packaged Zeners such as MMBZ5236B, but note that those differ in power rating, impedance, and thermal behavior versus the 1N4736A_NT50A.
What is the maximum allowable reverse current for continuous operation of 1N4736A_NT50A?
The 1N4736A_NT50A supports continuous reverse current up to 35 mA at 25°C ambient, corresponding to its rated 1.0 W power dissipation. At higher temperatures, current must be reduced per the 6.67 mW/°C derating curve - for example, maximum continuous current drops to ~28 mA at 70°C ambient to stay within thermal limits.
Does 1N4736A_NT50A meet RoHS and REACH requirements?
Yes - the 1N4736A_NT50A is manufactured by ON Semiconductor to comply with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead-free termination and halogen-free materials are confirmed in ON Semiconductor's official compliance documentation for the 1N4736AT/D package variant.
How does the NT50A suffix affect the electrical characteristics of 1N4736A_NT50A?
The NT50A suffix on 1N4736A_NT50A indicates a specific packaging configuration - 500-piece tape-and-reel format compliant with EIA-481-D standards and moisture sensitivity level (MSL) 1 handling. Electrical characteristics, thermal ratings, and reliability data are identical to the base 1N4736A part; only logistics and handling parameters differ.
1N4736A_NT50A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 3.5 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 4 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
1N4736A_NT50A FAQ
1.How can I place an order for 1N4736A_NT50A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4736A_NT50A 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 1N4736A_NT50A reliable?
The price and inventory of 1N4736A_NT50A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4736A_NT50A is usually 5 days.
3.What payment methods are accepted for 1N4736A_NT50A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4736A_NT50A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4736A_NT50A?
1N4736A_NT50A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4736A_NT50A 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 1N4736A_NT50A?
For technical support, including 1N4736A_NT50A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4736A_NT50A requirements.
6.How does Aetrix verify that 1N4736A_NT50A is sourced from the original manufacturer or authorized distributors?
All 1N4736A_NT50A 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 1N4736A_NT50A meets industry standards.
7.What is the process for return or replacement of 1N4736A_NT50A?
All 1N4736A_NT50A units undergo pre-shipment inspection (PSI). If there is an issue with 1N4736A_NT50A, 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 1N4736A_NT50A part is unused and in its original packaging.
Return procedure for 1N4736A_NT50A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4736A_NT50A Tags
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