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Renesas HZS6.2NB2TA-E
- Part No.:
- HZS6.2NB2TA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS6.2NB2TA-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
HZS6.2NB2TA-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage regulation in low-power stabilized power supplies, with a nominal zener voltage of 6.2 V (min 5.99 V, max 6.24 V), dynamic resistance of 3.0 Ω at 5 mA, maximum power dissipation of 400 mW, and junction temperature rating up to 200°C. It serves as a reference or clamp element in voltage monitoring, overvoltage protection, and biasing circuits for analog ICs and microcontrollers.
For engineers reviewing the HZS6.2NB2TA-E datasheet, HZS6.2NB2TA-E pinout, HZS6.2NB2TA-E application, or HZS6.2NB2TA-E equivalent, this device is selected for stable low-current regulation where tight voltage tolerance (±2.4% at 6.2 V), low dynamic impedance, and high thermal robustness are required in industrial and consumer-grade power management subsystems.
Technical Context
The HZS6.2NB2TA-E operates as a two-terminal voltage reference diode, conducting in reverse breakdown with controlled zener characteristics. Its planar construction ensures consistent parameter distribution across production lots, and its specified test condition (IZ = 5 mA, pulse width = 40 ms) reflects typical DC-biased operation in linear regulator feedback paths or comparator reference nodes.
It exhibits a negative zener voltage temperature coefficient near 6.2 V - approximately –0.02 %/°C per Figure 2 - enabling predictable drift behavior in ambient-temperature-varying environments. The device is rated for storage between –55°C and +175°C and requires no external biasing circuitry beyond series current limiting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.99 V to 6.24 V at IZ = 5 mA - defines precise clamping threshold for 6.2 V nominal regulation. |
| Dynamic Resistance (rd) | 3.0 Ω max at IZ = 5 mA - ensures minimal output voltage variation under load current changes. |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - sets upper limit for continuous DC power handling on standard PCB. |
| Junction Temperature (Tj) | 200°C max - supports reliable operation in high-ambient industrial enclosures without forced cooling. |
| Reverse Current (IR) | 5 μA max at VR = 4.0 V - guarantees low leakage below breakdown, critical for battery-powered standby circuits. |
| Package Type | MHD (JEITA GRZZ0002ZC-A) - 5 mm-pitch axial leaded package optimized for high-speed automatic insertion. |
Pinout & Package
MHD package: axial-leaded, cylindrical glass-body diode with cathode band marking; leads spaced 5 mm apart, body diameter 2.0 mm, length 26.0 mm, mass ~0.084 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased terminal where zener breakdown occurs. |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential rail; completes current path during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic impedance | 3.0 Ω enables <15 mV output shift per 5 mA load change - improves regulation accuracy in feedback loops. |
| Wide operating temperature range | –55°C to +175°C storage, 200°C junction rating - supports deployment in automotive engine bays and industrial motor drives. |
| Tight zener voltage tolerance | Grade B2: ±2.4% at 6.2 V - reduces need for post-regulation trimming in cost-sensitive power supply designs. |
| Low leakage current | ≤5 μA at 4.0 V reverse bias - minimizes quiescent current draw in always-on monitoring circuits. |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Stabilizing reference voltage for 12-bit ADC inputs in temperature/humidity transmitters operating from unregulated 12 V rails. IC Role / Device Role / Timing Role: Zener diode provides fixed 6.2 V reference to op-amp buffer driving ADC VREF pin. Use Value: Maintains <±0.5% full-scale error over –40°C to +85°C ambient due to low tempco and stable rd. |
Use Scenario: Generating clean reset threshold for ARM Cortex-M0+ MCU in smart metering hardware. IC Role / Device Role / Timing Role: Clamps reset line voltage until main supply reaches 6.2 V ±5%, triggering POR sequence. Use Value: Eliminates external voltage supervisor IC; leverages inherent sharp knee and low leakage for deterministic timing. |
| LED Driver Bias Network | Overvoltage Clamp in RS-485 Interface |
|
Use Scenario: Setting constant current for high-brightness white LEDs powered from 24 V industrial bus. IC Role / Device Role / Timing Role: Shunt regulator element in emitter-follower bias network for NPN current mirror. Use Value: Delivers stable 6.2 V base drive despite ±10% input rail fluctuation, reducing LED intensity variance to <2%. |
Use Scenario: Protecting RS-485 transceiver inputs against ESD-induced transients exceeding ±15 kV contact discharge. IC Role / Device Role / Timing Role: Fast-acting shunt clamp placed between A/B lines and ground to limit differential surge voltage. Use Value: Responds within nanoseconds to clamp spikes above 6.2 V while surviving 400 mW peak pulse energy per IEC 61000-4-2 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C6V2 (ON Semiconductor) | Same 6.2 V nominal, 500 mW Pd, 10 Ω rd, DO-35 package | Higher power rating but higher dynamic impedance - less precise regulation at low currents | Prefer when higher surge energy handling is needed and tighter regulation is secondary |
| MMSZ5232B (Diodes Inc.) | 6.2 V nominal, SOD-123 surface-mount, 500 mW, 7 Ω rd | Surface-mount footprint - incompatible with through-hole assembly; unsuitable for axial-leaded layouts | Choose only if board redesign to SMT is feasible and space constraints prohibit axial devices |
Compared with BZX55C6V2 and MMSZ5232B, the HZS6.2NB2TA-E offers superior regulation precision (3.0 Ω vs. ≥7 Ω rd) in an industry-standard axial package, making it optimal for legacy through-hole designs requiring high stability at 5 mA bias without layout modification.
Availability
HZS6.2NB2TA-E is available at Aetrix Electronics and suitable for industrial sensor modules, microcontroller-based control units, and LED lighting drivers requiring stable component supply with guaranteed long-term continuity and RoHS-compliant sourcing.
Supply support for HZS6.2NB2TA-E 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, and system-on-chip solutions for industrial, automotive, and infrastructure markets.
The HZS-N Series was developed as a family of general-purpose silicon planar Zener diodes targeting cost-effective, high-reliability voltage stabilization in non-safety-critical consumer and industrial power supplies.
FAQ
What is the exact zener voltage range for HZS6.2NB2TA-E at 5 mA test current?
The HZS6.2NB2TA-E has a guaranteed zener voltage range of 5.99 V to 6.24 V when tested at IZ = 5 mA, corresponding to Grade B2 tolerance per the Renesas REJ03G0185-0300 datasheet. This 2.4% tolerance band ensures predictable clamping behavior in feedback networks without requiring binning or calibration. The HZS6.2NB2TA-E maintains this specification across its qualified operating temperature range.
Does HZS6.2NB2TA-E support surface-mount assembly?
No, the HZS6.2NB2TA-E uses the MHD axial-leaded package (JEITA GRZZ0002ZC-A) with 5 mm lead pitch and is designed exclusively for through-hole mounting. It is not compatible with reflow or wave soldering processes used for surface-mount components. For SMT alternatives, consider MMSZ5232B or similar SOD-123 devices - but note these are not pin-compatible replacements for HZS6.2NB2TA-E.
What is the maximum allowable continuous power dissipation for HZS6.2NB2TA-E at 70°C ambient?
Per Figure 3 in the Renesas datasheet, the HZS6.2NB2TA-E's derated power dissipation at Ta = 70°C is approximately 320 mW on a standard 100 × 180 × 1.6 mm paper-phenol PCB. This value is derived from the 400 mW rating at 25°C and linear derating slope of 4.0 mW/°C above 25°C. Exceeding this limit risks junction temperature exceeding 200°C and permanent degradation of the HZS6.2NB2TA-E.
Is HZS6.2NB2TA-E suitable for automotive under-hood applications?
The HZS6.2NB2TA-E is rated for junction temperatures up to 200°C and storage from –55°C to +175°C, meeting thermal requirements for many under-hood locations. However, Renesas classifies it as "Standard" grade per Quality Grade Notice, meaning it is not qualified for automotive safety-critical systems (e.g., engine control, braking). It may be used in non-safety auxiliary circuits like cabin sensors or infotainment power rails - subject to customer qualification per AEC-Q101.
How does the dynamic resistance of HZS6.2NB2TA-E affect regulation accuracy in a 1 mA bias circuit?
Although the HZS6.2NB2TA-E's dynamic resistance is specified at 5 mA (3.0 Ω max), its rd increases significantly at lower currents - typically >10 Ω at 1 mA. This results in greater output voltage sensitivity to current variations, reducing regulation accuracy. For stable 1 mA operation, the HZS6.2NB2TA-E remains functional but delivers ±30–50 mV regulation error versus ±15 mV at 5 mA. Designers should verify loop stability using actual rd vs. IZ curves from Figure 1.
HZS6.2NB2TA-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HZS6.2NB2TA-E FAQ
1.How can I place an order for HZS6.2NB2TA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS6.2NB2TA-E 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 HZS6.2NB2TA-E reliable?
The price and inventory of HZS6.2NB2TA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS6.2NB2TA-E is usually 5 days.
3.What payment methods are accepted for HZS6.2NB2TA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS6.2NB2TA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS6.2NB2TA-E?
HZS6.2NB2TA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS6.2NB2TA-E 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 HZS6.2NB2TA-E?
For technical support, including HZS6.2NB2TA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS6.2NB2TA-E requirements.
6.How does Aetrix verify that HZS6.2NB2TA-E is sourced from the original manufacturer or authorized distributors?
All HZS6.2NB2TA-E 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 HZS6.2NB2TA-E meets industry standards.
7.What is the process for return or replacement of HZS6.2NB2TA-E?
All HZS6.2NB2TA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS6.2NB2TA-E, 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 HZS6.2NB2TA-E part is unused and in its original packaging.
Return procedure for HZS6.2NB2TA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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