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Renesas RD6.2UJ-T1-AT
- Part No.:
- RD6.2UJ-T1-AT
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- 2-SMD, Gull Wing
- Datasheet:
-
RD6.2UJ-T1-AT.pdf
- Description:
- RD6.2UJ-T1-AT - LOW NOISE SHARP
- Quantity:
- Payment:
- Shipping:
Inventory:4,002
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Product details
Overview
RD6.2UJ-T1-AT from Renesas Electronics is a 2-pin ultra super mini mold Zener diode with nominal zener voltage 6.2 V, 150 mW power dissipation, and sharp breakdown characteristics for precision voltage reference and surge suppression in audio and instrumentation circuits.
For engineers reviewing the RD6.2UJ-T1-AT datasheet, RD6.2UJ-T1-AT pinout, RD6.2UJ-T1-AT application, or RD6.2UJ-T1-AT equivalent, key selection criteria include zener voltage tolerance (±5% Class N2), dynamic impedance (≤1 Ω at Iz = 1 mA), reverse current (≤100 µA at VR = 3.0 V), and low-noise operation in constant-voltage regulation.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with a specified test current of 0.5 mA and maximum zener current of 1 mA. Its sharp knee characteristic enables stable clamping across varying load conditions without significant voltage drift.
Designed for surface-mount use in compact PCB layouts, RD6.2UJ-T1-AT features a ceramic-substrate-compatible package with thermal resistance optimized for ambient temperatures up to +150 °C and junction temperature rating of 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Vz) | 6.01–6.32 V at Iz = 0.5 mA - ensures tight regulation within ±5% tolerance for Class N2 grading |
| Power Dissipation (P) | 150 mW at TA = 25 °C - defines maximum continuous DC power handling on standard FR-4 PCB |
| Dynamic Impedance (Zz) | ≤1 Ω at Iz = 1 mA - minimizes output voltage variation under dynamic load transients |
| Reverse Current (IR) | ≤100 µA at VR = 3.0 V - guarantees low leakage in standby or high-impedance bias networks |
| Junction Temperature (Tj) | 150 °C - sets upper thermal limit for reliable long-term operation in enclosed environments |
| Package | 2-pin Ultra Super Mini Mold - 2.1 mm × 1.3 mm × 0.7 mm footprint enabling high-density SMT placement |
Pinout & Package
RD6.2UJ-T1-AT uses a 2-terminal surface-mount package with cathode indicated by a marking band. The device has no internal circuitry beyond the Zener junction; terminals are unidirectional and non-reversible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to lower-potential side in reverse-bias configuration; forms return path for regulation current |
| Cathode | Zener breakdown terminal / regulated output node | Marked terminal; connected to higher-potential side to enable controlled reverse conduction at Vz |
Key Features
| Feature | Design Value |
|---|---|
| Low noise operation | Enables use in audio signal path references and sensitive analog front-ends without introducing measurable ripple |
| Sharp breakdown knee | Provides abrupt transition from blocking to conduction, improving accuracy in clipping and overvoltage protection |
| E24-standard zener voltage | Ensures compatibility with standard resistor and capacitor value series for predictable circuit design |
| 150 mW rated power | Supports moderate-current shunt regulation without external heat sinking in space-constrained applications |
Applications
| Audio Equipment Reference | Instrumentation Signal Clipping |
|---|---|
Use Scenario: Biasing op-amp input stages and setting reference levels in portable audio DACs and headphone amplifiers. IC Role / Device Role / Timing Role: Zener diode providing stable 6.2 V reference for analog signal conditioning circuitry. Use Value: Low noise and sharp knee ensure minimal harmonic distortion and consistent clipping thresholds across temperature. | Use Scenario: Limiting input signal amplitude before ADC sampling in handheld multimeters and oscilloscope front-ends. IC Role / Device Role / Timing Role: Passive waveform clipper protecting downstream converters from overvoltage transients. Use Value: ≤100 µA IR at 3.0 V prevents loading of high-impedance sensor outputs during normal operation. |
| Constant Voltage Regulator | Surge Absorber in Interface Circuits |
Use Scenario: Shunt regulation for low-power microcontroller reset circuits and EEPROM write-enable logic. IC Role / Device Role / Timing Role: Voltage clamp maintaining stable 6.2 V supply rail for supervisory ICs. Use Value: 150 mW rating supports sustained 1 mA regulation current without thermal derating on standard PCBs. | Use Scenario: Transient suppression on RS-232 or CAN bus termination nodes exposed to ESD events. IC Role / Device Role / Timing Role: Surge absorber diverting short-duration spikes away from interface transceivers. Use Value: 2.2 W peak surge rating (t = 10 µs) handles IEC 61000-4-2 Level 4 ESD pulses without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5234BT1G | Zener voltage 6.2 V ±5%, 200 mW power rating, SOT-23 package (3.0 mm × 1.4 mm) | Larger footprint and higher power allow greater surge margin but require more board area | Preferred where higher surge robustness is needed and PCB space permits larger package |
| BZX84-C6V2 | Zener voltage 6.2 V ±5%, 300 mW power rating, SOT-23 package, higher Zz (≤10 Ω) | Higher dynamic impedance reduces regulation precision under fast load changes | Suitable for general-purpose clamping where tight voltage stability is not critical |
Compared with MMBZ5234BT1G and BZX84-C6V2, RD6.2UJ-T1-AT offers the smallest footprint (2.1 mm × 1.3 mm) and lowest Zz (≤1 Ω), making it optimal for space-constrained, low-noise analog designs requiring precise voltage referencing.
Availability
RD6.2UJ-T1-AT is available at Aetrix Electronics and suitable for audio equipment, instrumentation systems, and industrial interface circuits requiring stable component supply with consistent parametric performance across production lots.
Supply support for RD6.2UJ-T1-AT 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
Renesas Electronics Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and consumer applications.
The RD4.7UJ to RD39UJ series was designed specifically for low-noise, sharp-breakdown Zener regulation in compact audio and test equipment where size, stability, and signal integrity are critical.
FAQ
What is the zener voltage tolerance for RD6.2UJ-T1-AT?
The RD6.2UJ-T1-AT is offered in Class N2 grading, specifying a zener voltage range of 6.01 V to 6.32 V at test current Iz = 0.5 mA - corresponding to ±5% tolerance around the nominal 6.2 V rating. This tolerance is verified per the D13938EJ3V0DS00 datasheet and applies under standard test conditions (TA = 25 °C, pulsed measurement).
Can RD6.2UJ-T1-AT be used in place of a 6.2 V through-hole zener diode?
RD6.2UJ-T1-AT is a surface-mount device in ultra mini mold package (2.1 mm × 1.3 mm) and is not a direct mechanical replacement for through-hole zeners. Electrical substitution is possible only if the circuit accommodates SMT layout, thermal constraints, and the 150 mW power rating - unlike many axial-lead equivalents rated at 400–500 mW.
What is the maximum reverse surge power rating for RD6.2UJ-T1-AT?
RD6.2UJ-T1-AT supports a peak reverse surge power of 2.2 W at pulse width t = 10 µs (single pulse), as defined in the "Maximum Ratings" section of the D13938EJ3V0DS00 datasheet. This rating enables transient suppression in low-energy ESD and switching-spike scenarios when properly decoupled.
Does RD6.2UJ-T1-AT meet RoHS requirements?
Yes, RD6.2UJ-T1-AT complies with the EU RoHS Directive, as confirmed by Renesas Electronics' environmental compliance documentation. The device contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE) above threshold limits, and is suitable for environmentally regulated end products.
What is the temperature coefficient of RD6.2UJ-T1-AT?
RD6.2UJ-T1-AT exhibits a zener voltage temperature coefficient (γZ) of approximately +0.03 %/°C near 6.2 V, as shown in Figure 3 of the D13938EJ3V0DS00 datasheet. This positive coefficient means Vz increases slightly with rising junction temperature, supporting stable regulation in ambient ranges from –55 °C to +150 °C.
RD6.2UJ-T1-AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 2-SMD, Gull Wing
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-Ultra Super Mini Mold
RD6.2UJ-T1-AT FAQ
1.How can I place an order for RD6.2UJ-T1-AT through Aetrix?
Please submit a Request for Quotation (RFQ) for RD6.2UJ-T1-AT 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 RD6.2UJ-T1-AT reliable?
The price and inventory of RD6.2UJ-T1-AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RD6.2UJ-T1-AT is usually 5 days.
3.What payment methods are accepted for RD6.2UJ-T1-AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD6.2UJ-T1-AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD6.2UJ-T1-AT?
RD6.2UJ-T1-AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD6.2UJ-T1-AT 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 RD6.2UJ-T1-AT?
For technical support, including RD6.2UJ-T1-AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD6.2UJ-T1-AT requirements.
6.How does Aetrix verify that RD6.2UJ-T1-AT is sourced from the original manufacturer or authorized distributors?
All RD6.2UJ-T1-AT 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 RD6.2UJ-T1-AT meets industry standards.
7.What is the process for return or replacement of RD6.2UJ-T1-AT?
All RD6.2UJ-T1-AT units undergo pre-shipment inspection (PSI). If there is an issue with RD6.2UJ-T1-AT, 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 RD6.2UJ-T1-AT part is unused and in its original packaging.
Return procedure for RD6.2UJ-T1-AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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