My Inquiry
My Account
Renesas HZS12C1TD-E
- Part No.:
- HZS12C1TD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS12C1TD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HZS12C1TD-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 13.8–14.3 V at 1 mA test current, 9.5 Ω dynamic resistance, and 400 mW maximum power dissipation in the MHD package.
For engineers reviewing the HZS12C1TD-E datasheet, HZS12C1TD-E pinout, HZS12C1TD-E application, or HZS12C1TD-E equivalent, this device serves as a compact, high-stability voltage reference for analog sensing circuits, microcontroller reset supervision, and low-current bias networks where tight tolerance and low temperature drift are required.
Technical Context
The HZS12C1TD-E operates as a two-terminal shunt regulator, maintaining stable output voltage across its cathode-anode terminals under reverse-biased conditions. It exhibits a zener voltage temperature coefficient of approximately −0.04 %/°C (−40 mV/°C) near 14 V, enabling predictable drift compensation in ambient-temperature-varying designs.
Its low leakage current (<1 µA at VR = 11.2 V), low dynamic impedance (9.5 Ω at IZ = 1 mA), and rated junction temperature of 200°C support reliable operation in industrial-grade embedded power rails and sensor front-end conditioning stages without active thermal management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13.8–14.3 V at IZ = 1 mA - defines precise clamping threshold for overvoltage protection and reference generation. |
| Dynamic Resistance (rd) | 9.5 Ω max at IZ = 1 mA - ensures minimal output voltage variation under load current shifts. |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - supports continuous regulation in compact PCB layouts without forced cooling. |
| Reverse Leakage (IR) | ≤1 µA at VR = 11.2 V - minimizes quiescent current loss in battery-backed or energy-sensitive circuits. |
| Junction Temperature (Tj) | 200°C max - enables operation in high-ambient environments such as industrial motor controls or automotive under-hood modules. |
| Package Type | MHD (JEITA GRZZ0002ZC-A) - 5 mm pitch, axial-leaded, paper-phenol body optimized for high-speed automatic insertion. |
Pinout & Package
Package: MHD (axial-leaded, 2.0 mm diameter × 26.0 mm length, 0.4 mm lead diameter, 5 mm pitch), JEITA code GRZZ0002ZC-A, mass ≈ 0.084 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side reference node | Connected to regulated voltage rail; carries reverse current during zener conduction. |
| 2 (Anode) | Low-side return path | Grounded or connected to lower potential; completes current path for voltage stabilization. |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 9.5 Ω max ensures <±20 mV output shift under ±20 mA load transients in feedback-sensing applications. |
| Wide zener voltage range | 1.6–38 V family coverage allows direct selection of HZS12C1TD-E for 14 V system rails without external scaling. |
| High-temperature capability | 200°C junction rating permits use in sealed enclosures or near heat-generating components without derating. |
| Automated assembly compatibility | 5 mm pitch and standardized MHD dimensions enable direct integration into high-volume SMT-compatible through-hole lines. |
Applications
| Microcontroller Reset Circuit | Analog Sensor Biasing |
|---|---|
|
Use Scenario: Providing a stable 14 V reference to trigger a supervisor IC's reset output when main supply drops below threshold. IC Role / Device Role / Timing Role: Shunt voltage reference defining precise undervoltage lockout (UVLO) threshold. Use Value: Eliminates need for resistor-divider + comparator by delivering factory-trimmed 13.8–14.3 V with <1 µA leakage. |
Use Scenario: Supplying bias current to a precision op-amp input stage in a thermocouple amplifier. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage source for setting common-mode operating point. Use Value: −0.04 %/°C tempco and 9.5 Ω rd minimize offset drift across −40°C to +85°C industrial range. |
| Industrial Power Monitor | LED Driver Reference |
|
Use Scenario: Clamping auxiliary supply rail in a PLC I/O module to protect ADC inputs from overvoltage transients. IC Role / Device Role / Timing Role: Passive overvoltage clamp limiting rail excursion to 14.3 V maximum. Use Value: 400 mW Pd sustains 28.6 mA surge current (14.3 V × 28.6 mA) without failure during 100 ms transients. |
Use Scenario: Setting constant current for a low-power indicator LED string in a medical device status panel. IC Role / Device Role / Timing Role: Stable voltage reference for current-setting resistor in linear LED driver topology. Use Value: Tight 13.8–14.3 V tolerance ensures ±3.6% LED current accuracy without trimming resistors. |
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 |
|---|---|---|---|
| 1N4742A (ON Semiconductor) | 12 V nominal, 20 Ω rd, 1 W Pd, DO-41 package | Higher power, looser tolerance (±5%), larger footprint | Preferred where higher surge handling is needed but 14 V reference is not required. |
| BZX55-C15 (Vishay) | 15 V nominal, 30 Ω rd, 500 mW Pd, DO-35 package | Higher voltage, higher impedance, different thermal profile | Suitable for 15 V systems with relaxed regulation stability requirements. |
Compared with 1N4742A and BZX55-C15, the HZS12C1TD-E delivers tighter voltage tolerance (±1.8% vs. ±5%), lower dynamic impedance (9.5 Ω vs. ≥20 Ω), and optimized MHD packaging for automated insertion-making it preferable for space-constrained, high-stability 14 V reference designs.
Availability
HZS12C1TD-E is available at Aetrix Electronics and suitable for industrial power monitors, microcontroller reset circuits, analog sensor biasing, and LED driver references requiring stable component supply with traceable sourcing and long-term lifecycle support.
Supply support for HZS12C1TD-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-reliability voltage stabilization in cost-sensitive, high-volume power management applications.
FAQ
What is the exact zener voltage range specified for HZS12C1TD-E?
The HZS12C1TD-E has a guaranteed zener voltage range of 13.8 V to 14.3 V when tested at IZ = 1 mA and Ta = 25°C. This 500 mV span reflects the C3 grade tolerance within the HZS12 family, confirmed in Renesas' REJ03G0184-0500 datasheet, page 4.
Does HZS12C1TD-E support surface-mount assembly?
No, HZS12C1TD-E uses the axial-leaded MHD package (JEITA GRZZ0002ZC-A) with 5 mm pitch and 26 mm body length, designed exclusively for through-hole or high-speed automatic insertion-not SMT reflow. Its construction lacks solder pads or gull-wing leads required for surface mounting.
What is the maximum reverse leakage current for HZS12C1TD-E?
The maximum reverse leakage current for HZS12C1TD-E is 1 µA at VR = 11.2 V and Ta = 25°C, as specified in the Electrical Characteristics table on page 4 of the official Renesas datasheet (REJ03G0184-0500 Rev.5.00). This low leakage preserves efficiency in standby or battery-powered circuits.
Can HZS12C1TD-E be used in automotive applications?
HZS12C1TD-E is classified as a "Standard" quality grade device per Renesas' documentation and is intended for computers, office equipment, and industrial robots-not automotive safety-critical systems. It lacks AEC-Q200 qualification and is not recommended for under-hood or ADAS applications without additional validation.
What is the thermal resistance junction-to-ambient for HZS12C1TD-E?
The datasheet does not specify RθJA for HZS12C1TD-E. However, Figure 3 (Page 5) shows power dissipation derating: 400 mW at 25°C ambient, linearly decreasing to 0 mW at ~150°C. Using this curve, RθJA is estimated at ~312.5°C/W (125°C rise / 0.4 W), consistent with axial MHD package physics.
HZS12C1TD-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:
- -
HZS12C1TD-E FAQ
1.How can I place an order for HZS12C1TD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS12C1TD-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 HZS12C1TD-E reliable?
The price and inventory of HZS12C1TD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS12C1TD-E is usually 5 days.
3.What payment methods are accepted for HZS12C1TD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS12C1TD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS12C1TD-E?
HZS12C1TD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS12C1TD-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 HZS12C1TD-E?
For technical support, including HZS12C1TD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS12C1TD-E requirements.
6.How does Aetrix verify that HZS12C1TD-E is sourced from the original manufacturer or authorized distributors?
All HZS12C1TD-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 HZS12C1TD-E meets industry standards.
7.What is the process for return or replacement of HZS12C1TD-E?
All HZS12C1TD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS12C1TD-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 HZS12C1TD-E part is unused and in its original packaging.
Return procedure for HZS12C1TD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS12C1TD-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…
