My Inquiry
My Account
Renesas HZS4C3TD-E
- Part No.:
- HZS4C3TD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS4C3TD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HZS4C3TD-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 4.2–4.4 V at 5 mA, 400 mW power dissipation, and dynamic resistance of ≤100 Ω - deployed in industrial control power rails and sensor biasing circuits.
For engineers reviewing the HZS4C3TD-E datasheet, HZS4C3TD-E pinout, HZS4C3TD-E application, or HZS4C3TD-E equivalent, key selection criteria include zener voltage tolerance (±0.2 V), low leakage current (≤25 µA at 0.5 V), thermal stability (−55 to +175 °C storage), and MHD package compatibility with 5 mm-pitch automated insertion.
Technical Context
The HZS4C3TD-E operates as a two-terminal shunt regulator, maintaining stable output voltage across variable load and input conditions via controlled reverse-biased breakdown. Its planar junction construction ensures consistent zener impedance and low temperature coefficient drift.
Rated for 400 mW DC power dissipation at 25 °C ambient, it exhibits a junction temperature limit of 200 °C and supports operation up to 175 °C storage - enabling use in thermally constrained PCB layouts without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.2–4.4 V at IZ = 5 mA - defines regulated output voltage range under standard test conditions |
| Power Dissipation (Pd) | 400 mW at Ta = 25 °C - sets maximum continuous thermal load before derating applies |
| Dynamic Resistance (rd) | ≤100 Ω at IZ = 5 mA - determines regulation sensitivity to load current changes |
| Reverse Leakage (IR) | ≤25 µA at VR = 0.5 V - ensures minimal quiescent current in standby or low-voltage bias networks |
| Junction Temperature (Tj) | 200 °C maximum - enables reliable operation in high-ambient industrial environments |
| Storage Temperature | −55 to +175 °C - supports extended deployment in automotive under-hood or outdoor equipment |
Pinout & Package
Package: MHD (JEITA code GRZZ0002ZC-A), molded plastic case with cathode band marking; 2.0 mm diameter body, 26.0 mm lead length, 5 mm pitch - optimized for high-speed automatic insertion.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; reverse-bias terminal where zener breakdown occurs |
| 2 | Anode | Connected to circuit ground or common reference; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | ≤100 Ω ensures tight voltage regulation under ±10% load variation |
| Wide zener voltage range | 1.6–38 V family coverage allows single-source design flexibility across multiple supply rails |
| High reliability planar structure | Stable long-term VZ drift and low failure rate under continuous DC stress |
| Automated insertion compatibility | 5 mm pitch and standardized MHD footprint support high-volume SMT-compatible through-hole assembly |
Applications
| Industrial Power Monitoring | Sensor Bias Reference |
|---|---|
Use Scenario: Monitoring 5 V rail integrity in PLC I/O modules using comparator-based undervoltage detection. IC Role / Device Role / Timing Role: Shunt reference providing stable 4.3 V threshold against which rail voltage is compared. Use Value: Enables accurate trip point within ±0.2 V tolerance, independent of supply ripple or temperature drift. |
Use Scenario: Supplying precise bias voltage to analog front-end op-amps in temperature transmitters. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage reference for signal conditioning circuitry. Use Value: Maintains <100 ppm/°C effective TC via matched layout and planar junction stability. |
| Embedded Microcontroller Reset Circuit | LED Current Regulation |
Use Scenario: Generating clean reset threshold for 3.3 V microcontrollers in battery-powered edge nodes. IC Role / Device Role / Timing Role: Zener-clamped voltage divider feeding RC delay into reset IC input. Use Value: Delivers repeatable 2.8 V trigger point with <5 µs response to brownout events. |
Use Scenario: Setting constant current for indicator LEDs in HVAC control panels. IC Role / Device Role / Timing Role: Series-pass shunt regulator defining voltage drop across current-sense resistor. Use Value: Stabilizes LED brightness across 10–40 °C ambient with <±3% current variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C4V3 (ON Semiconductor) | VZ = 4.3 V ±5%, Pd = 500 mW, rd = 90 Ω - wider voltage tolerance, higher power rating | Preferred where board-level thermal margin exceeds 100 mW and tighter production binning is not required | Select when cost-driven volume production favors industry-standard JEDEC DO-35 packages over MHD |
| MMSZ4V3 (Vishay) | VZ = 4.3 V ±5%, Pd = 350 mW, rd = 120 Ω - lower power rating, SOD-123 surface-mount package | Suitable for space-constrained designs where through-hole insertion is not available | Choose for compact PCBs requiring reflow-compatible packaging and acceptable trade-off in thermal headroom |
Compared with BZX55-C4V3 and MMSZ4V3, the HZS4C3TD-E offers tighter zener voltage tolerance (±0.2 V vs. ±5%), lower dynamic resistance, and MHD packaging optimized for automated through-hole assembly - making it optimal for high-reliability industrial power monitoring where regulation precision and process compatibility are prioritized.
Availability
HZS4C3TD-E is available at Aetrix Electronics and suitable for industrial control systems, sensor interface modules, and embedded reset circuitry requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for HZS4C3TD-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 Series belongs to Renesas' legacy discrete voltage reference portfolio, engineered specifically for stable, low-drift DC voltage regulation in cost-sensitive yet reliability-critical industrial power subsystems.
FAQ
What is the exact zener voltage range specified for HZS4C3TD-E?
The HZS4C3TD-E has a guaranteed zener voltage range of 4.2 V to 4.4 V when tested at 5 mA DC current, per Renesas datasheet REJ03G0184-0500 Rev.5.00. This ±0.2 V tolerance is tighter than standard 5% Zener diodes and supports precision biasing in HZS4C3TD-E applications such as sensor references and reset thresholds.
Does HZS4C3TD-E support automatic insertion during manufacturing?
Yes, the HZS4C3TD-E uses the MHD package (JEITA code GRZZ0002ZC-A) with 5 mm lead pitch and standardized dimensions, explicitly qualified for high-speed automatic insertion per the datasheet. Its 2.0 mm body diameter and 26 mm lead length ensure compatibility with standard axial component feeders and placement nozzles used in industrial PCB assembly lines handling HZS4C3TD-E.
What is the maximum allowable junction temperature for HZS4C3TD-E?
The absolute maximum junction temperature for HZS4C3TD-E is 200 °C, as specified in the Absolute Maximum Ratings table of the official Renesas datasheet. This rating permits operation in high-ambient environments such as enclosed industrial enclosures or near heat-generating components, provided thermal design maintains actual Tj below this limit - critical for long-term reliability of HZS4C3TD-E in continuous-use applications.
How does the dynamic resistance of HZS4C3TD-E affect regulation performance?
The HZS4C3TD-E exhibits dynamic resistance ≤100 Ω at 5 mA, meaning its output voltage varies by ≤0.5 V for every 5 mA change in zener current. This low rd value directly improves load regulation accuracy in HZS4C3TD-E implementations, especially in low-current bias networks where even small current shifts would otherwise cause unacceptable voltage drift.
Is HZS4C3TD-E RoHS compliant and halogen-free?
Yes, HZS4C3TD-E complies with EU RoHS Directive requirements, as confirmed by Renesas' environmental compliance documentation. The device contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE), and meets halogen-free standards per IEC 61249-2-21 - ensuring safe processing and end-of-life handling for HZS4C3TD-E in global electronics manufacturing.
HZS4C3TD-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:
- -
HZS4C3TD-E FAQ
1.How can I place an order for HZS4C3TD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS4C3TD-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 HZS4C3TD-E reliable?
The price and inventory of HZS4C3TD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS4C3TD-E is usually 5 days.
3.What payment methods are accepted for HZS4C3TD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS4C3TD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS4C3TD-E?
HZS4C3TD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS4C3TD-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 HZS4C3TD-E?
For technical support, including HZS4C3TD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS4C3TD-E requirements.
6.How does Aetrix verify that HZS4C3TD-E is sourced from the original manufacturer or authorized distributors?
All HZS4C3TD-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 HZS4C3TD-E meets industry standards.
7.What is the process for return or replacement of HZS4C3TD-E?
All HZS4C3TD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS4C3TD-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 HZS4C3TD-E part is unused and in its original packaging.
Return procedure for HZS4C3TD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS4C3TD-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…
