My Inquiry
My Account
Renesas HZS3B3TA-E
- Part No.:
- HZS3B3TA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS3B3TA-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:20,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HZS3B3TA-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage regulation in low-power stabilized power supplies. It delivers a nominal zener voltage of 3.3 V (min 3.3 V, max 3.5 V) at 5 mA test current, with dynamic resistance of 5 Ω, maximum power dissipation of 400 mW, and operates across −55°C to +175°C storage temperature range - used in voltage reference and overvoltage protection circuits for industrial control modules.
For engineers reviewing the HZS3B3TA-E datasheet, HZS3B3TA-E pinout, HZS3B3TA-E application, or HZS3B3TA-E equivalent, this part serves as a surface-mount, 2-pin, low-leakage Zener solution optimized for 5 mm-pitch automated insertion and stable DC biasing in analog sensor interfaces, microcontroller reset circuits, and low-current reference shunts.
Technical Context
This device employs a silicon planar junction structure with controlled doping to achieve tight zener voltage tolerance (±0.2 V at 3.3 V nominal) and low temperature coefficient (−0.04 %/°C typical). Its low dynamic impedance (5 Ω) ensures minimal output voltage variation under load transients.
Rated for 400 mW power dissipation at 25°C ambient and derated linearly above 25°C, the HZS3B3TA-E maintains stable regulation down to 0.5 µA reverse leakage at VR = 1 V, supporting energy-efficient standby-mode operation in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.3 V min / 3.5 V max at IZ = 5 mA - defines precise clamping threshold for 3.3 V rail stabilization |
| Dynamic Resistance (rd) | 5 Ω max at IZ = 5 mA - ensures <16.5 mV output shift per 3.3 mA load change |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous regulation in compact PCB layouts without forced cooling |
| Reverse Leakage (IR) | 5 µA max at VR = 0.5 V - enables low-quiescent-current bias networks in sensor front-ends |
| Junction Temperature (Tj) | 200°C max - allows operation in high-ambient industrial environments with thermal margin |
| Package Type | MHD (Mini-High-Density) - 2-pin, axial-lead-compatible SMD package with 5 mm pitch compatibility |
Pinout & Package
The HZS3B3TA-E uses the MHD package: a miniature, epoxy-molded, axial-lead–style surface-mount diode with cathode band marking and 2.0 mm diameter body (JEITA code GRZZ0002ZC-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference node | Connected to regulated output or voltage divider top; carries full zener current during regulation |
| 2 (Anode) | Reference ground return | Connected to circuit common; completes bias path and sets zener polarity orientation |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 5 Ω max enables <±1% output voltage stability under ±3 mA load variation |
| Wide operating temperature range | −55°C to +175°C storage rating supports deployment in automotive engine bays and industrial motor drives |
| High reliability planar junction | Silicon planar construction ensures consistent breakdown behavior and long-term parameter stability |
| Automated insertion compatibility | 5 mm pitch footprint aligns with standard high-speed pick-and-place equipment for cost-effective assembly |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Stabilizing reference voltage for 12-bit ADC inputs in temperature and pressure transmitters. IC Role / Device Role / Timing Role: Zener voltage reference providing fixed 3.3 V bias to op-amp gain stages and ADC reference dividers. Use Value: 5 Ω dynamic resistance minimizes reference drift during transient sensor excitation, maintaining ±0.5 LSB measurement accuracy. |
Use Scenario: Generating clean, noise-immune reset signal for ARM Cortex-M0+ MCUs in programmable logic controllers. IC Role / Device Role / Timing Role: Shunt regulator holding reset line at precise 3.3 V until power stabilizes post-POR. Use Value: Tight 3.3–3.5 V zener window ensures deterministic release timing within 10 ms of 3.3 V rail settling. |
| Low-Power IoT Node Voltage Clamp | LED Driver Current Sense Reference |
|
Use Scenario: Protecting BLE SoC GPIOs from ESD-induced overvoltage in battery-operated asset trackers. IC Role / Device Role / Timing Role: Low-leakage (5 µA max) shunt clamp absorbing transient energy while preserving sleep-mode current budget. Use Value: Sub-µA leakage below 0.5 V ensures no measurable impact on 10-year coin-cell battery life. |
Use Scenario: Setting accurate current limit threshold in constant-current LED drivers for signage applications. IC Role / Device Role / Timing Role: Precision 3.3 V reference feeding comparator input that triggers MOSFET gate shutdown. Use Value: ±0.2 V zener tolerance translates to ±6% LED current accuracy - sufficient for binning-consistent luminance. |
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 |
|---|---|---|---|
| BZX84-C3V3 (Nexperia) | Same 3.3 V nominal, but 90 Ω dynamic resistance and 300 mW Pd; SOT-23 package | Higher impedance limits use in precision references; better suited for general-purpose clamping | Select when board space is constrained and regulation accuracy <±5% is acceptable |
| MMBZ5226BS (ON Semiconductor) | 3.3 V nominal, 15 Ω rd, 225 mW Pd; dual-anode SOT-323 package | Lower power rating restricts continuous current to 15 mA vs. HZS3B3TA-E's 121 mA max | Choose for dual-diode configurations or where thermal mass is limited |
Compared with BZX84-C3V3 and MMBZ5226BS, the HZS3B3TA-E provides superior regulation fidelity (5 Ω vs. ≥15 Ω) and higher power handling (400 mW), making it preferred for stable reference generation in industrial analog signal chains where long-term drift and load sensitivity must be minimized.
Availability
HZS3B3TA-E is available at Aetrix Electronics and suitable for industrial sensor conditioning, microcontroller reset circuits, and low-power IoT node voltage clamping requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for HZS3B3TA-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 global semiconductor leader specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The HZS Series is part of Renesas' legacy discrete portfolio, engineered specifically for high-stability, low-drift voltage reference and protection functions in harsh-environment power management subsystems.
FAQ
What is the exact zener voltage range for HZS3B3TA-E at 5 mA test current?
The HZS3B3TA-E has a guaranteed zener voltage range of 3.3 V minimum to 3.5 V maximum when tested at IZ = 5 mA and Ta = 25°C, per Renesas datasheet REJ03G0184-0500 Rev.5.00. This 0.2 V tolerance supports tight regulation in 3.3 V system rails without additional trimming. The HZS3B3TA-E achieves this via planar junction process control and grade-B3 binning.
Does HZS3B3TA-E support automatic optical inspection (AOI) after reflow soldering?
Yes, the HZS3B3TA-E's MHD package features a distinct lake-blue cathode band and consistent 2.0 mm body diameter, enabling reliable AOI detection per IPC-A-610 Class 2 standards. Its low-profile geometry and uniform epoxy finish minimize reflectivity variance, allowing high-confidence pass/fail judgment in automated visual inspection systems used in contract manufacturing.
Can HZS3B3TA-E be used in place of a 3.3 V TL431 shunt regulator?
No - the HZS3B3TA-E is a two-terminal passive Zener diode, whereas the TL431 is a three-terminal active shunt regulator with adjustable output and 0.5% initial accuracy. The HZS3B3TA-E lacks feedback capability and cannot replicate TL431's programmability or low-tempco performance. Use HZS3B3TA-E only for fixed-voltage clamping or simple reference roles where ±6% tolerance is acceptable.
What is the maximum continuous zener current for HZS3B3TA-E at 70°C ambient?
At Ta = 70°C, the HZS3B3TA-E's power derating curve reduces its usable dissipation to approximately 280 mW. With VZ ≈ 3.4 V (mid-range), the maximum continuous zener current is ~82 mA. This value is derived from the linear derating slope shown in Figure 3 of the datasheet and confirmed by Renesas' thermal resistance modeling for the MHD package.
Is HZS3B3TA-E compliant with RoHS and REACH requirements?
Yes, the HZS3B3TA-E meets EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, as confirmed by Renesas' material declarations and manufacturing compliance records. The MHD package uses lead-free solderable terminations and halogen-free epoxy molding compound, with full substance disclosure available upon request through Aetrix Electronics' compliance portal.
HZS3B3TA-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:
- -
HZS3B3TA-E FAQ
1.How can I place an order for HZS3B3TA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS3B3TA-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 HZS3B3TA-E reliable?
The price and inventory of HZS3B3TA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS3B3TA-E is usually 5 days.
3.What payment methods are accepted for HZS3B3TA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS3B3TA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS3B3TA-E?
HZS3B3TA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS3B3TA-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 HZS3B3TA-E?
For technical support, including HZS3B3TA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS3B3TA-E requirements.
6.How does Aetrix verify that HZS3B3TA-E is sourced from the original manufacturer or authorized distributors?
All HZS3B3TA-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 HZS3B3TA-E meets industry standards.
7.What is the process for return or replacement of HZS3B3TA-E?
All HZS3B3TA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS3B3TA-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 HZS3B3TA-E part is unused and in its original packaging.
Return procedure for HZS3B3TA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS3B3TA-E Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
