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onsemi 1N4735A_S00Z
- Part No.:
- 1N4735A_S00Z
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4735A_S00Z.pdf
- Description:
- DIODE ZENER 6.2V 1W DO41
- Quantity:
- Payment:
- Shipping:
Inventory:8,261
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Product details
Overview
1N4735A_S00Z from ON Semiconductor is a 6.2 V ±5% Zener diode in DO-41 glass package, rated for 1.0 W power dissipation at TL ≤ 50°C, with 41 Ω maximum Zener impedance at 2 mA test current and 3 μA leakage current at 5 V reverse bias. It serves as a precision voltage reference or overvoltage clamp in low-power linear regulators and signal conditioning circuits.
For engineers reviewing the 1N4735A_S00Z datasheet, pinout, applications, or equivalent options, key selection criteria include its 6.2 V nominal Zener voltage, tight 5% tolerance, DO-41 mechanical compatibility, thermal derating slope (6.67 mW/°C above 50°C), and verified performance across -65°C to +200°C operating range.
Technical Context
The 1N4735A_S00Z operates in reverse breakdown mode with a specified Zener voltage of 5.89 V (min) to 6.51 V (max) at 2 mA test current. Its dynamic impedance of 41 Ω at IZ and 700 Ω at knee current (IZK = 1 mA) defines regulation stiffness under varying load conditions.
It exhibits 3 μA maximum leakage current at 5 V reverse bias and withstands non-repetitive peak reverse surge currents up to 730 mA (8.3 ms square wave). The device is qualified for operation from -65°C to +200°C and requires 3/8″ lead length for full 1.0 W power rating compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.89–6.51 V @ 2 mA - Defines stable regulation point with ±5% tolerance for reference or clamping use. |
| Power Dissipation (PD) | 1.0 W @ TL ≤ 50°C - Maximum continuous power handling under standard lead-length thermal condition. |
| Zener Impedance (ZZ) | 41 Ω max @ 2 mA - Low dynamic resistance ensures minimal output voltage variation with current changes. |
| Knee Impedance (ZZK) | 700 Ω @ 1 mA - Characterizes regulation onset behavior near threshold conduction. |
| Leakage Current (IR) | 3 μA max @ 5 V - Confirms low off-state conduction critical for high-impedance bias networks. |
| Operating Temp Range | -65°C to +200°C - Enables deployment in automotive under-hood, industrial, and aerospace environments. |
| Thermal Derating | 6.67 mW/°C above 50°C - Required linear reduction in allowable power to prevent junction overheating. |
Pinout & Package
DO-41 glass axial package with cathode indicated by a single color band. Leads are tinned copper-clad steel; case is hermetically sealed glass with axial symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reverse-biased reference node | Connected to lower-potential side in Zener regulation; forms cathode-referenced voltage sink. |
| Cathode | Zener breakdown terminal / Voltage reference output | Marked with color band; supplies regulated voltage relative to anode when reverse biased ≥ VZ. |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables predictable regulation without post-manufacture trimming in cost-sensitive designs. |
| 1.0 W power rating (TL ≤ 50°C) | Supports higher-current reference or protection functions compared to 400 mW Zeners. |
| Low 41 Ω Zener impedance @ 2 mA | Delivers stable output under moderate load transients in feedback or sensing paths. |
| DO-41 glass package | Provides robust moisture resistance, thermal stability, and industry-standard through-hole mounting. |
| -65°C to +200°C operating range | Validates suitability for extended-temperature applications without derating penalties beyond spec. |
Applications
| Low-Power Voltage Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 6.2 V bias for op-amp input stages or ADC reference dividers in battery-powered sensors. IC Role / Device Role / Timing Role: Precision DC voltage source establishing known potential for analog signal conditioning. Use Value: Maintains <±1% output drift over temperature due to tight 5% VZ tolerance and low ZZ. |
Use Scenario: Protecting microcontroller GPIO pins from ESD-induced voltage spikes on I²C lines. IC Role / Device Role / Timing Role: Shunt limiter clamping transient excursions above 6.51 V to safe levels. Use Value: Absorbs 730 mA non-repetitive surges without failure, preserving downstream logic integrity. |
| Linear Regulator Feedback | Current Source Biasing |
Use Scenario: Setting output voltage in discrete 3-terminal adjustable regulator circuits using LM317-style topology. IC Role / Device Role / Timing Role: Stable reference element defining error amplifier setpoint in closed-loop regulation. Use Value: Delivers consistent 6.2 V reference despite input ripple, enabling <1% output regulation accuracy. |
Use Scenario: Establishing fixed bias current for LED drivers or transistor amplifiers via constant-voltage drop. IC Role / Device Role / Timing Role: Voltage-defined current source using series resistor and stable VZ. Use Value: Enables repeatable 1–10 mA bias currents with <2% variation across production lots and temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4735A | Same electrical specs and DO-41 package; S00Z suffix denotes specific ON Semiconductor traceability marking variant. | No functional difference; identical use in all 1N4735A-designated circuits. | Select 1N4735A_S00Z when OEM BOM specifies ON Semiconductor's S00Z-marked version for audit or sourcing control. |
| BZX55C6V2 | 6.2 V ±5%, 500 mW rating, DO-35 package - lower power, smaller footprint, higher ZZ (60 Ω). | Suitable for space-constrained PCBs but not for >500 mW dissipation or lowest-impedance regulation. | Choose BZX55C6V2 only if board area is critical and power demand stays below 0.5 W with acceptable ZZ trade-off. |
Compared with 1N4735A_S00Z, the base 1N4735A offers identical performance with no marking distinction, while BZX55C6V2 reduces size and cost at the expense of power handling and regulation stiffness-making it viable only in low-power, space-limited implementations.
Availability
1N4735A_S00Z is available at Aetrix Electronics and suitable for low-power voltage reference, overvoltage protection, and linear regulator feedback applications requiring stable component supply and long-term manufacturability.
Supply support for 1N4735A_S00Z 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 (now onsemi) is a global semiconductor supplier specializing in energy-efficient power management, analog, and sensor solutions for automotive, industrial, and cloud infrastructure markets.
The 1N47xxA series was designed as a general-purpose, high-reliability Zener diode family for precision voltage regulation and transient suppression in cost-sensitive, high-volume applications.
FAQ
What is the nominal Zener voltage of the 1N4735A_S00Z?
The 1N4735A_S00Z has a nominal Zener voltage of 6.2 V, with a guaranteed range of 5.89 V (minimum) to 6.51 V (maximum) at 2 mA test current and 25°C ambient. This value is measured under thermal equilibrium conditions with 3/8″ lead length, and the ±5% tolerance is maintained across the full -65°C to +200°C operating temperature range.
Is the 1N4735A_S00Z compatible with standard DO-41 footprints?
Yes, the 1N4735A_S00Z uses the industry-standard DO-41 glass axial package with 0.022"–0.030" lead diameter and 0.250"–0.375" body length. Its cathode band aligns with IPC-7351 requirements, and it fits all generic DO-41 land patterns without modification-no layout change is needed when substituting other DO-41 Zeners like 1N4733A or 1N4736A.
What is the maximum power dissipation for the 1N4735A_S00Z?
The 1N4735A_S00Z is rated for 1.0 W power dissipation at lead temperature (TL) ≤ 50°C with 3/8″ lead length. Above 50°C, power must be linearly derated at 6.67 mW/°C. At 100°C lead temperature, maximum allowable power drops to 667 mW. Exceeding these limits risks irreversible junction degradation.
How does the 1N4735A_S00Z perform under surge conditions?
The 1N4735A_S00Z supports non-repetitive peak reverse currents up to 730 mA for 8.3 ms square-wave pulses, per ON Semiconductor's test methodology. This capability enables reliable transient suppression in I/O protection circuits without requiring external series limiting resistors in many low-energy surge scenarios.
What is the leakage current specification for the 1N4735A_S00Z?
The 1N4735A_S00Z specifies a maximum leakage current (IR) of 3 μA at 5 V reverse bias and 25°C. This low off-state conduction ensures minimal loading on high-impedance bias networks-critical for precision references and battery-operated systems where quiescent current directly impacts runtime.
1N4735A_S00Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 2 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 200°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
1N4735A_S00Z FAQ
1.How can I place an order for 1N4735A_S00Z through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4735A_S00Z 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 1N4735A_S00Z reliable?
The price and inventory of 1N4735A_S00Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4735A_S00Z is usually 5 days.
3.What payment methods are accepted for 1N4735A_S00Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4735A_S00Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4735A_S00Z?
1N4735A_S00Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4735A_S00Z 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 1N4735A_S00Z?
For technical support, including 1N4735A_S00Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4735A_S00Z requirements.
6.How does Aetrix verify that 1N4735A_S00Z is sourced from the original manufacturer or authorized distributors?
All 1N4735A_S00Z 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 1N4735A_S00Z meets industry standards.
7.What is the process for return or replacement of 1N4735A_S00Z?
All 1N4735A_S00Z units undergo pre-shipment inspection (PSI). If there is an issue with 1N4735A_S00Z, 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 1N4735A_S00Z part is unused and in its original packaging.
Return procedure for 1N4735A_S00Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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