My Inquiry
My Account
Renesas HZ27-3TD-P-E
- Part No.:
- HZ27-3TD-P-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ27-3TD-P-E.pdf
- Description:
- DIODE ZENER 0.5W
- Quantity:
- Payment:
- Shipping:
Inventory:35,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HZ27-3TD-P-E from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 27.2–28.6 V at 0.5 mA test current, 400 mW power dissipation, 24.0 Ω dynamic impedance, and DO-35 glass package with navy blue cathode band. It serves as a stable reference in low-drift power supplies and sensor biasing networks.
For engineers reviewing the HZ27-3TD-P-E datasheet, HZ27-3TD-P-E pinout, HZ27-3TD-P-E application, or HZ27-3TD-P-E equivalent, key selection criteria include zener voltage tolerance (±2.5%), temperature coefficient (−0.04 %/°C at ~27 V), low noise performance (~1/3–1/10 of standard HZ series), and DO-35 thermal derating behavior up to 175°C junction temperature.
Technical Context
This device operates as a two-terminal shunt regulator with DC-tested zener breakdown characteristics. Its low dynamic resistance (24.0 Ω) and tight voltage tolerance support high-accuracy voltage referencing under stable bias conditions.
The HZ27-3TD-P-E exhibits a negative temperature coefficient of −0.04 %/°C near 27 V, enabling predictable drift compensation in temperature-sensitive designs. Its DO-35 package provides standardized lead spacing (E = 4.2 mm) and thermal resistance suitable for through-hole PCB mounting in low-power analog subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27.2–28.6 V at IZ = 0.5 mA - defines stable regulation range for mid-range supply references |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - sets maximum continuous DC power handling before thermal derating |
| Dynamic Resistance (rd) | 24.0 Ω at IZ = 0.5 mA - determines output impedance and load regulation sensitivity |
| Zener Current (IZ) | 0.5 mA min / 1 mA max test condition - specifies operating point for guaranteed VZ and rd |
| Junction Temperature (Tj) | −55 to +175°C - enables use in industrial environments with wide ambient swings |
| Reverse Leakage (IR) | ≤1 μA at VR = 20.2 V - ensures minimal quiescent current in standby or high-impedance bias networks |
Pinout & Package
Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A), orange body color, navy blue cathode band, 2.0 mm diameter, 26.0 mm overall length, 4.2 mm lead spacing (E), 0.13 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side terminal of reverse-biased junction | Connected to regulated voltage rail; polarity must be observed to avoid forward conduction |
| 2 (Anode) | Low-side terminal of reverse-biased junction | Typically grounded or connected to lower potential node; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Noise level ≈1/3–1/10 that of standard HZ series - critical for audio preamps and precision ADC references |
| Tight zener voltage tolerance | ±2.5% at 27 V - reduces calibration burden in factory-trimmed instrumentation |
| Stable temperature coefficient | −0.04 %/°C near 27 V - enables predictable drift modeling in thermal-aware designs |
| Low leakage current | ≤1 μA at 20.2 V - preserves battery life and minimizes error in high-impedance bias networks |
Applications
| High-Stability Reference Supply | Precision Sensor Biasing |
|---|---|
Use Scenario: Generating a stable 27 V reference for 16-bit DACs and high-resolution data acquisition front-ends. IC Role / Device Role / Timing Role: Shunt voltage reference providing low-drift, low-noise regulation independent of load current variation. Use Value: Enables <±0.5 LSB integral nonlinearity by minimizing reference voltage drift and noise coupling into analog signal paths. | Use Scenario: Biasing bridge-type pressure sensors in automotive engine control modules where ambient temperature exceeds 125°C. IC Role / Device Role / Timing Role: Zener diode supplying constant excitation voltage to Wheatstone bridge while rejecting supply ripple. Use Value: Maintains sensor output linearity over −40°C to +150°C due to matched thermal coefficient and DO-35 thermal robustness. |
| Low-Power Analog Front-End | Industrial Signal Conditioning |
Use Scenario: Providing regulated bias for JFET-input op-amps in portable medical ECG amplifiers. IC Role / Device Role / Timing Role: Low-leakage shunt regulator establishing clean, quiet VREF for ultra-low-input-bias-current stages. Use Value: Achieves <1 pA input bias error by limiting reverse leakage to ≤1 μA and suppressing broadband noise below 10 nV/√Hz. | Use Scenario: Stabilizing 24 V supply rails feeding 4–20 mA transmitter circuits in hazardous-area process controllers. IC Role / Device Role / Timing Role: Overvoltage clamp and reference element protecting downstream analog ICs from transient surges and long-term drift. Use Value: Prevents field failures by maintaining regulation within ±0.7 V over 10-year service life, validated per IEC 61000-4-5 surge immunity testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5258BRLG | Zener voltage 27 V ±5%, rd = 35 Ω, Pd = 500 mW, DO-35 package | Higher voltage tolerance and impedance; less suitable for low-noise precision references | Select when cost sensitivity outweighs noise and drift requirements |
| BZX85C27 | Zener voltage 27 V ±5%, rd = 40 Ω, Pd = 1.3 W, DO-41 package | Higher power rating but larger footprint and higher noise; requires layout revision | Choose only if thermal margin >1 W is required and board space permits DO-41 |
Compared with 1N5258BRLG and BZX85C27, the HZ27-3TD-P-E delivers superior noise suppression and tighter voltage tolerance in the same DO-35 footprint-making it optimal for space-constrained, low-drift analog systems where reference integrity directly impacts measurement accuracy.
Availability
HZ27-3TD-P-E is available at Aetrix Electronics and suitable for high-reliability analog reference supplies, precision sensor biasing, and industrial signal conditioning requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for HZ27-3TD-P-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 is a global semiconductor leader delivering microcontrollers, analog power, and mixed-signal solutions for automotive, industrial, and IoT applications.
The HZ-L Series was developed specifically for low-noise, low-drift voltage reference applications in precision analog systems-emphasizing zener stability, thermal predictability, and consistent parametric performance across voltage grades.
FAQ
What is the exact zener voltage range specified for HZ27-3TD-P-E?
The HZ27-3TD-P-E has a guaranteed zener voltage range of 27.2 V to 28.6 V when tested at IZ = 0.5 mA and Ta = 25°C. This 1.4 V span reflects ±2.5% tolerance around the nominal 27.9 V center point, ensuring predictable regulation in calibrated analog subsystems without post-manufacture trimming.
Does HZ27-3TD-P-E support operation above 100°C ambient temperature?
Yes, HZ27-3TD-P-E is rated for storage and operation from −55°C to +175°C junction temperature. When mounted on standard FR-4 PCB with 10 mm lead length, its power derating curve allows ≥200 mW dissipation at +100°C ambient-enabling use in under-hood automotive or industrial motor drive control modules.
How does the noise performance of HZ27-3TD-P-E compare to legacy Zener diodes?
HZ27-3TD-P-E achieves approximately 1/3 to 1/10 the noise level of standard HZ-series Zeners due to optimized silicon planar processing and low-impedance junction design. This reduction directly lowers integrated RMS noise in 10 Hz–10 kHz bandwidths-critical for audio preamplifiers and high-resolution sensor interfaces where reference noise dominates system SNR.
Is HZ27-3TD-P-E compatible with automated through-hole assembly processes?
Yes, HZ27-3TD-P-E uses the industry-standard DO-35 axial package (JEITA GRZZ0002ZB-A) with 2.0 mm body diameter and 4.2 mm lead spacing (E), fully compatible with wave soldering, selective soldering, and axial insertion equipment. Its 0.13 g mass and glass encapsulation meet IPC-J-STD-020 moisture sensitivity level MSL-1 requirements.
What is the maximum reverse leakage current for HZ27-3TD-P-E at 20.2 V?
The maximum reverse leakage current for HZ27-3TD-P-E is 1 μA when measured at VR = 20.2 V and Ta = 25°C. This low leakage supports high-impedance bias networks-such as those used with JFET-input op-amps or CMOS comparators-without introducing measurable offset or drift errors.
HZ27-3TD-P-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:
- -
HZ27-3TD-P-E FAQ
1.How can I place an order for HZ27-3TD-P-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ27-3TD-P-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 HZ27-3TD-P-E reliable?
The price and inventory of HZ27-3TD-P-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ27-3TD-P-E is usually 5 days.
3.What payment methods are accepted for HZ27-3TD-P-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ27-3TD-P-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ27-3TD-P-E?
HZ27-3TD-P-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ27-3TD-P-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 HZ27-3TD-P-E?
For technical support, including HZ27-3TD-P-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ27-3TD-P-E requirements.
6.How does Aetrix verify that HZ27-3TD-P-E is sourced from the original manufacturer or authorized distributors?
All HZ27-3TD-P-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 HZ27-3TD-P-E meets industry standards.
7.What is the process for return or replacement of HZ27-3TD-P-E?
All HZ27-3TD-P-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ27-3TD-P-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 HZ27-3TD-P-E part is unused and in its original packaging.
Return procedure for HZ27-3TD-P-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ27-3TD-P-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…
