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Nexperia USA Inc. 1N4735A,133
- Part No.:
- 1N4735A,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4735A,133.pdf
- Description:
- DIODE ZENER 6.2V 1W DO41
- Quantity:
- Payment:
- Shipping:
Inventory:5,435
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Product details
Overview
1N4735A,133 from Nexperia is a 6.2 V ±5 % Zener voltage regulator diode in a hermetically sealed SOD66 (DO-41) glass package, rated for 1000 mW total power dissipation and 41 mA test current, used for low-voltage stabilization in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4735A,133 datasheet, 1N4735A,133 pinout, 1N4735A,133 application, or 1N4735A,133 equivalent, this device serves as a precision shunt voltage reference with 2 Ω differential resistance, 10 µA reverse leakage at 4.96 V, and operation up to +200 °C junction temperature - critical for industrial power rail conditioning and analog sensor biasing.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable 6.2 V reference across its terminals under controlled current conditions. It exhibits a typical differential resistance of 2 Ω at 41 mA test current and supports forward conduction up to 1.2 V at 200 mA.
Thermal performance is defined by a junction-to-tie-point thermal resistance of 110 K/W (lead length 4 mm), enabling reliable operation within −65 °C to +200 °C storage and junction temperature ranges, with maximum non-repetitive peak reverse current of 730 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage (VZ) | 6.2 V nominal, ±5 % tolerance - defines precise shunt regulation point for 5 V–6.5 V rail references |
| Test current (Itest) | 41 mA - operating point where VZ and differential resistance are specified |
| Differential resistance (rdif) | 2 Ω - low impedance ensures minimal output voltage shift under load variation |
| Reverse current (IR) | 10 µA max at 4.96 V - confirms sharp knee and low leakage below regulation threshold |
| Total power dissipation (Ptot) | 1000 mW - enables use in medium-power linear regulators without forced cooling |
| Forward voltage (VF) | 1.2 V max at 200 mA - supports bidirectional clamping or polarity-sensitive protection |
| Junction temperature (Tj) | −65 °C to +200 °C - suitable for extended-temperature industrial and automotive under-hood applications |
Pinout & Package
Hermetically sealed axial-leaded SOD66 (DO-41) glass package with cathode indicated by a colored band. Leads are tinned copper-clad steel, compatible with wave and hand soldering per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated voltage node; reverse-biased during Zener operation |
| 2 (non-banded end) | Anode | Connected to ground or lower-potential return path; completes shunt current loop |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid environments |
| ±5 % VZ tolerance | Enables direct use in cost-sensitive designs without post-production trimming |
| Low rdif = 2 Ω | Minimizes output voltage variation across 1–100 mA load current range |
| 1000 mW Ptot | Supports standalone regulation of 5 V logic rails drawing up to ~160 mA |
| −65 °C to +200 °C Tj | Validates operation in engine control units, industrial PLC I/O modules, and outdoor power converters |
Applications
| Industrial Power Supply Reference | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Providing stable 6.2 V reference for feedback loops in isolated DC-DC converters and linear regulators. IC Role / Device Role / Timing Role: Shunt voltage reference establishing error amplifier setpoint. Use Value: Enables ±1 % output regulation accuracy with minimal external components due to tight VZ tolerance and low rdif. |
Use Scenario: Clamping transient surges on 5 V microcontroller I/O lines during ESD events or inductive switching. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor (cathode to rail, anode to ground). Use Value: Limits voltage excursions to ≤6.5 V while sustaining 730 mA non-repetitive peak current without degradation. |
| Analog Sensor Biasing | Programmable Current Source Reference |
|
Use Scenario: Supplying stable excitation voltage to resistive temperature detectors (RTDs) and bridge sensors in data acquisition systems. IC Role / Device Role / Timing Role: Precision voltage source for ratiometric measurement front-ends. Use Value: Delivers <10 ppm/°C drift contribution over −40 °C to +85 °C ambient due to low thermal resistance and stable Zener characteristics. |
Use Scenario: Setting reference voltage for constant-current LED drivers or DAC output buffers requiring fixed compliance voltage. IC Role / Device Role / Timing Role: Voltage reference input to op-amp-based current mirror or Howland source. Use Value: Supports 41 mA test current and 1000 mW dissipation, enabling robust 10–100 mA programmable current outputs with <0.5 % setpoint error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4735A (ON Semiconductor) | Same 6.2 V nominal, ±5 %, 1000 mW rating; differential resistance 2.5 Ω (vs. Nexperia's 2 Ω) | Identical functional role; slightly higher rdif yields ~0.1 V greater regulation error at 50 mA load step | Preferred when ON Semi's qualification history in automotive AEC-Q200-compliant programs is required |
| BZX85C6V2 (Nexperia) | Same 6.2 V, ±5 %, but in plastic DO-41 (SOD66) package; Ptot = 1300 mW; rdif = 5 Ω | Higher power rating allows >100 mA continuous operation; plastic package reduces cost but increases humidity sensitivity | Select for cost-sensitive consumer applications where hermeticity is not mandated and higher power margin is needed |
Compared with the 1N4735A,133, the ON Semiconductor variant offers equivalent voltage stability but marginally higher regulation impedance, while the BZX85C6V2 trades hermetic reliability for higher power and lower cost - making the 1N4735A,133 optimal for high-reliability industrial references where long-term parametric stability is critical.
Availability
1N4735A,133 is available at Aetrix Electronics and suitable for industrial power supply reference, overvoltage protection clamp, and analog sensor biasing requiring stable component supply and traceable sourcing through full production lifecycles.
Supply support for 1N4735A,133 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
Nexperia is a global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET devices, founded as part of NXP and now independently focused on essential semiconductors for mass-market electronics.
The 1N47xxA series targets cost-effective, high-stability voltage regulation in power management and protection circuits - designed specifically for applications demanding hermetic reliability and wide temperature operation without active circuitry.
FAQ
What is the maximum continuous reverse current the 1N4735A,133 can sustain at 25 °C?
The device is rated for a working current (IZ) of 3 mA minimum and 146 mA maximum at its 6.2 V Zener voltage. Continuous operation at 146 mA is permissible only if junction temperature remains ≤150 °C, which requires thermal design limiting power dissipation to ≤730 mW under ambient conditions.
Can the 1N4735A,133 be used in series to achieve higher reference voltages?
Yes - multiple 1N4735A,133 diodes may be connected cathode-to-anode in series to generate integer multiples of 6.2 V (e.g., two in series yield ~12.4 V). However, matching VZ tolerances compound, and thermal coupling must be ensured to prevent current hogging due to mismatched temperature coefficients.
Does the 1N4735A,133 meet RoHS and REACH requirements?
Yes - the 1N4735A,133 complies with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free terminations and halogen-free packaging confirmed in Nexperia's official compliance documentation dated October 2009 and updated per subsequent declarations.
How does the 1N4735A,133 behave under pulsed reverse current conditions?
It supports non-repetitive peak reverse current (IZSM) of 730 mA for pulses ≤1/120 second (8.3 ms), provided pulse duty cycle remains low enough to limit average power dissipation and junction temperature rise - validated per IEC 60134 absolute maximum ratings.
1N4735A,133 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- 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:
- 1.2 V @ 200 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
1N4735A,133 FAQ
1.How can I place an order for 1N4735A,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4735A,133 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,133 reliable?
The price and inventory of 1N4735A,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4735A,133 is usually 5 days.
3.What payment methods are accepted for 1N4735A,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4735A,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4735A,133?
1N4735A,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4735A,133 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,133?
For technical support, including 1N4735A,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4735A,133 requirements.
6.How does Aetrix verify that 1N4735A,133 is sourced from the original manufacturer or authorized distributors?
All 1N4735A,133 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,133 meets industry standards.
7.What is the process for return or replacement of 1N4735A,133?
All 1N4735A,133 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4735A,133, 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,133 part is unused and in its original packaging.
Return procedure for 1N4735A,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4735A,133 Tags
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