My Inquiry
My Account
Renesas HZS6A2TD-E
- Part No.:
- HZS6A2TD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS6A2TD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:12,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HZS6A2TD-E from Renesas Electronics is a silicon planar Zener diode designed for voltage regulation and stabilization in low-power supply circuits, with a nominal zener voltage of 6.4 V (min 6.3 V, max 6.7 V), 400 mW power dissipation, 2.0 Ω dynamic resistance at 5 mA test current, and operating junction temperature up to 200°C - used in precision reference and overvoltage protection circuits for industrial control modules.
For engineers reviewing the HZS6A2TD-E datasheet, HZS6A2TD-E pinout, HZS6A2TD-E application, or HZS6A2TD-E equivalent, this device serves as a stable, low-leakage, surface-mount-compatible voltage reference in DC-DC feedback paths, sensor biasing networks, and analog front-end clamping where tight tolerance and thermal stability are required.
Technical Context
This Zener diode operates in reverse breakdown mode with DC-tested characteristics, delivering regulated voltage under controlled zener current (IZ = 5 mA). Its low dynamic resistance (2.0 Ω) ensures minimal output impedance across load variations, while its −55°C to +175°C storage temperature range supports wide-environment deployment.
The device uses a silicon planar construction with cathode band marking, packaged in the MHD (JEITA GRZZ0002ZC-A) leadframe package. It exhibits a negative zener voltage temperature coefficient near 6.4 V, typical for mid-voltage Zeners, enabling predictable drift behavior in thermal-aware designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.3 V (min) to 6.7 V (max) at IZ = 5 mA - defines precise regulation window for feedback or reference use |
| Power Dissipation (Pd) | 400 mW maximum - sets upper thermal limit for continuous operation without heatsinking |
| Dynamic Resistance (rd) | 2.0 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤5 µA at VR = 0.5 V - ensures low leakage in standby or high-impedance bias networks |
| Junction Temperature (Tj) | 200°C maximum - enables reliable operation in thermally constrained PCB layouts |
| Package | MHD (JEITA GRZZ0002ZC-A) - 2-pin through-hole compatible footprint with 5 mm pitch for automated insertion |
Pinout & Package
Package: MHD (JEITA GRZZ0002ZC-A), 2-pin through-hole package with cathode band marking; body diameter φD = 2.0 mm (nom), lead spacing E = 2.4 mm (max), length L = 26.0 mm (min).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; polarity must be observed for proper reverse-bias operation |
| 2 | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 2.0 Ω at 5 mA - improves regulation accuracy under varying load currents |
| Wide zener voltage spectrum | 1.6 V to 38 V coverage across HZS family - allows selection of optimal VZ without redesign |
| High thermal endurance | 200°C max junction temperature - supports operation in enclosed or high-ambient environments |
| Low leakage current | ≤5 µA at 0.5 V reverse bias - minimizes error in high-impedance reference dividers |
| Automated insertion compatibility | 5 mm pitch design - enables high-speed placement in legacy through-hole manufacturing lines |
Applications
| Industrial Power Monitoring | Embedded Sensor Biasing |
|---|---|
|
Use Scenario: Monitoring 12 V rail in PLC I/O modules using resistive divider into ADC input. IC Role / Device Role / Timing Role: Zener reference providing stable 6.4 V clamp to protect ADC input from overvoltage transients. Use Value: Prevents ADC saturation during 12 V rail surges while maintaining <±2% reference accuracy over −40°C to +85°C ambient. |
Use Scenario: Supplying bias voltage to MEMS pressure sensor bridge in HVAC controller. IC Role / Device Role / Timing Role: Low-drift voltage reference establishing excitation potential for Wheatstone bridge. Use Value: Enables <0.5% full-scale output error by stabilizing bridge voltage against supply ripple and temperature drift. |
| Programmable Logic Controller (PLC) Input Protection | DC-DC Converter Feedback Reference |
|
Use Scenario: Protecting digital input optocoupler from field-wiring induced voltage spikes. IC Role / Device Role / Timing Role: Clamping diode shunting transient energy above 6.7 V to ground. Use Value: Limits input voltage to safe level for 5 V logic interface without adding series resistance or delay. |
Use Scenario: Setting output voltage of isolated flyback converter via TL431 feedback network. IC Role / Device Role / Timing Role: Precision reference source for optocoupler LED bias in secondary-side regulation loop. Use Value: Maintains ±1.5% output regulation across line/load/temperature by stabilizing feedback node voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C6V2 (ON Semiconductor) | 6.2 V nominal, 500 mW Pd, 10 Ω rd, DO-35 package | Higher power but higher impedance; requires layout adaptation for axial lead vs. MHD pitch | Preferred when higher surge energy handling is needed and board space permits DO-35 footprint |
| MMSZ5233B (Diodes Inc.) | 6.2 V nominal, 500 mW Pd, 7 Ω rd, SOD-123 surface-mount package | SMD-only; lacks through-hole compatibility and 5 mm pitch automation support | Selected for compact PCBs where reflow assembly replaces wave soldering and manual insertion |
Compared with BZX55C6V2 and MMSZ5233B, HZS6A2TD-E offers tighter VZ tolerance (±0.3 V vs. ±5%), lower dynamic resistance (2.0 Ω vs. ≥7 Ω), and native compatibility with high-speed through-hole insertion - making it optimal for cost-sensitive industrial controls requiring repeatable mechanical placement and stable low-current regulation.
Availability
HZS6A2TD-E is available at Aetrix Electronics and suitable for industrial power monitoring, embedded sensor biasing, PLC input protection, and DC-DC converter feedback requiring stable component supply across long-lifecycle production programs.
Supply support for HZS6A2TD-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.
HZS6A2TD-E belongs to the HZS Series of silicon planar Zener diodes, engineered specifically for stabilized power supply applications demanding low leakage, low impedance, and robust thermal performance in cost-sensitive industrial equipment.
FAQ
What is the exact zener voltage range specified for HZS6A2TD-E?
The HZS6A2TD-E has a guaranteed zener voltage range of 6.3 V (minimum) to 6.7 V (maximum) when tested at IZ = 5 mA and Ta = 25°C. This 0.4 V span reflects the "A2" grade within the HZS6 family and is confirmed in the Renesas REJ03G0184-0500 datasheet, page 3. The HZS6A2TD-E maintains this specification across its qualified operating temperature range.
Is HZS6A2TD-E suitable for surface-mount assembly?
No, HZS6A2TD-E is not a surface-mount device. It uses the MHD package - a radial leaded, through-hole package with 5 mm pin pitch - designed for wave soldering or high-speed automatic insertion. Its JEITA code GRZZ0002ZC-A and mechanical drawings on page 6 of the datasheet confirm axial lead configuration and 26 mm minimum body length, precluding SMT placement.
What is the maximum reverse leakage current for HZS6A2TD-E?
The maximum reverse leakage current for HZS6A2TD-E is 5 µA, measured at VR = 0.5 V and Ta = 25°C. This value is specified in the "Electrical Characteristics" table on page 2 of the Renesas datasheet (REJ03G0184-0500 Rev.5.00) and applies to all HZS6-grade variants including HZS6A2TD-E.
Does HZS6A2TD-E have a specified zener voltage temperature coefficient?
Yes - while the datasheet does not list a numeric γZ value specific to HZS6A2TD-E, Figure 2 (page 5) shows the zener voltage temperature coefficient curve for the HZS Series. At ~6.4 V, the coefficient is approximately −0.04 %/°C (or −2.6 mV/°C), consistent with mid-voltage silicon Zeners. This behavior is inherent to the device's silicon planar structure and confirmed across the HZS6 family.
Can HZS6A2TD-E replace a 6.2 V Zener diode in an existing design?
Replacing a 6.2 V Zener with HZS6A2TD-E requires verification of circuit margin: its 6.3–6.7 V range shifts regulation upward by ~0.1–0.5 V. If the original design relies on tight 6.2 V tolerance (e.g., for comparator thresholds), recalibration or resistor adjustment may be needed. However, for general clamping or coarse reference use, HZS6A2TD-E is functionally viable - provided MHD package fit and 5 mm pitch match the PCB layout.
HZS6A2TD-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:
- -
HZS6A2TD-E FAQ
1.How can I place an order for HZS6A2TD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS6A2TD-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 HZS6A2TD-E reliable?
The price and inventory of HZS6A2TD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS6A2TD-E is usually 5 days.
3.What payment methods are accepted for HZS6A2TD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS6A2TD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS6A2TD-E?
HZS6A2TD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS6A2TD-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 HZS6A2TD-E?
For technical support, including HZS6A2TD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS6A2TD-E requirements.
6.How does Aetrix verify that HZS6A2TD-E is sourced from the original manufacturer or authorized distributors?
All HZS6A2TD-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 HZS6A2TD-E meets industry standards.
7.What is the process for return or replacement of HZS6A2TD-E?
All HZS6A2TD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS6A2TD-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 HZS6A2TD-E part is unused and in its original packaging.
Return procedure for HZS6A2TD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS6A2TD-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…
