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Renesas HZ27-1TD-P-E
- Part No.:
- HZ27-1TD-P-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ27-1TD-P-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:14,285
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Product details
Overview
HZ27-1TD-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 25.2–26.6 V, 400 mW power dissipation, 24.0 Ω dynamic impedance at 0.5 mA test current, and DO-35 glass package with navy-blue cathode band. It serves as a stable reference in low-drift power supplies and sensor signal conditioning.
For engineers reviewing the HZ27-1TD-P-E datasheet, HZ27-1TD-P-E pinout, HZ27-1TD-P-E application, or HZ27-1TD-P-E equivalent, key selection criteria include zener voltage tolerance (±2.8%), temperature coefficient (−0.04 %/°C), low noise performance (1/3–1/10 that 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 characteristics, using planar diffusion technology to achieve low leakage and stable breakdown. Its low dynamic resistance (24.0 Ω) and tight voltage tolerance support high-accuracy biasing in op-amp references and ADC voltage references.
The HZ27-1TD-P-E exhibits a negative temperature coefficient of −0.04 %/°C (≈ −10.2 mV/°C), making it suitable for temperature-compensated reference designs when paired with positive-TC components. Thermal performance follows standard DO-35 derating curves, maintaining 400 mW dissipation only at Ta ≤ 50°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25.2–26.6 V at IZ = 0.5 mA - defines stable regulation range for mid-range analog references |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - sets maximum continuous bias current limit in linear regulator topologies |
| Dynamic Resistance (rd) | 24.0 Ω at IZ = 0.5 mA - determines output impedance and load regulation sensitivity |
| Zener Temperature Coefficient | −0.04 %/°C (≈ −10.2 mV/°C) - enables predictable drift compensation in reference chains |
| Reverse Leakage Current | ≤1 μA at VR = 20.9 V - ensures minimal error current in high-impedance bias networks |
| Junction Temperature (Tj) | 175°C - defines maximum allowable die temperature under sustained power dissipation |
Pinout & Package
DO-35 glass axial package (RENESAS code GRZZ0002ZB-A, JEITA DO-35), 2.0 mm diameter × 26.0 mm length, orange body with navy-blue cathode band. Mass: 0.13 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener breakdown terminal | Connected to regulated voltage node; polarity must be observed to avoid forward conduction |
| 2 (Anode) | Reference ground return | Serves as circuit common; reverse-biased operation requires anode at lower potential than cathode |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener structure | Diode noise level ≈ 1/3–1/10 that of standard HZ series - critical for audio preamps and precision instrumentation front-ends |
| Stable low-impedance regulation | 24.0 Ω dynamic resistance at 0.5 mA - minimizes output voltage shift under varying load currents |
| Tight voltage tolerance | ±2.8% over 25.2–26.6 V range - reduces calibration burden in factory-trimmed systems |
| High-temperature reliability | 175°C max junction temperature - supports operation in industrial enclosures without forced cooling |
| Low leakage performance | ≤1 μA at 20.9 V reverse bias - preserves accuracy in µA-level bias networks and battery-powered sensors |
Applications
| Audio Signal Reference | Precision ADC Reference |
|---|---|
Use Scenario: Low-distortion microphone preamplifier requiring ultra-low-noise DC bias for JFET input stage. IC Role / Device Role / Timing Role: Provides quiet, stable 25.6 V reference for gate biasing and gain-setting networks. Use Value: Reduces audible hiss by suppressing zener-generated broadband noise compared to legacy HZ-series parts. |
Use Scenario: 16-bit SAR ADC system where reference stability directly impacts ENOB and INL performance. IC Role / Device Role / Timing Role: Supplies clean, low-drift reference voltage to ADC's internal reference buffer input. Use Value: Enables <0.01% full-scale drift over 0–70°C due to matched −0.04 %/°C TC and low rd. |
| Industrial Sensor Excitation | Linear Regulator Shunt Reference |
Use Scenario: Strain-gauge Wheatstone bridge powered from unregulated 30 V rail in factory automation PLC module. IC Role / Device Role / Timing Role: Acts as precision 25.6 V shunt reference for bridge excitation and amplifier offset nulling. Use Value: Maintains <±0.5 mV output variation across 40–85°C ambient due to low TC and thermal mass of DO-35 package. |
Use Scenario: Discrete LDO design using PNP pass transistor where zener sets base-emitter voltage. IC Role / Device Role / Timing Role: Serves as temperature-stable voltage setpoint for emitter-follower regulation loop. Use Value: Achieves ±0.1% line regulation over 28–32 V input thanks to 24.0 Ω rd and 400 mW Pd headroom. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5262B | Zener voltage 27 V (nominal), 500 mW Pd, 35 Ω rd, SOD-123 package | Higher power but higher impedance and surface-mount only - unsuitable for through-hole prototyping or high-temp axial layouts | Select when board space is constrained and 27 V nominal (vs. 25.6 V typical) is acceptable |
| Vishay BZX84-C27 | Zener voltage 27 V (nominal), 300 mW Pd, 40 Ω rd, SOT-23 package, no low-noise specification | Lower power rating and uncharacterized noise - not recommended for audio or precision analog use cases | Select only for cost-sensitive, non-critical voltage clamping where noise is irrelevant |
Compared with MMBZ5262B and BZX84-C27, the HZ27-1TD-P-E delivers superior low-noise performance, tighter voltage tolerance, and proven thermal stability in axial through-hole form - making it the preferred choice for analog reference integrity where DO-35 mounting is acceptable.
Availability
HZ27-1TD-P-E is available at Aetrix Electronics and suitable for precision analog references, industrial sensor excitation, audio signal conditioning, and linear regulator shunt applications requiring stable component supply and long-term parametric consistency.
Supply support for HZ27-1TD-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog power devices, and precision timing components for industrial, automotive, and infrastructure markets.
The HZ-L Series Zener diodes were designed specifically for low-noise, high-stability voltage reference applications in analog signal chains - emphasizing reduced flicker noise, tight voltage tolerance, and predictable temperature behavior over broad operating ranges.
FAQ
What is the nominal zener voltage of the HZ27-1TD-P-E?
The HZ27-1TD-P-E has a specified zener voltage range of 25.2 V to 26.6 V at 0.5 mA test current, with a typical value of 25.9 V. This range reflects process-controlled tolerance for precision reference use, and the device is not rated for operation outside this band under standard test conditions.
Is the HZ27-1TD-P-E suitable for high-temperature environments?
Yes, the HZ27-1TD-P-E supports operation up to 175°C junction temperature and is rated for storage between −55°C and +175°C. Its DO-35 package and planar construction ensure reliable performance in industrial control cabinets and motor drive modules where ambient temperatures exceed 85°C.
How does the noise performance of HZ27-1TD-P-E compare to standard Zener diodes?
The HZ27-1TD-P-E achieves approximately 1/3 to 1/10 the noise level of conventional HZ-series Zeners due to optimized silicon planar processing. This reduction is verified in low-frequency (<10 kHz) spectral density measurements and makes the HZ27-1TD-P-E appropriate for microphone preamps and precision instrumentation amplifiers.
What is the dynamic resistance of HZ27-1TD-P-E and why does it matter?
The HZ27-1TD-P-E has a dynamic resistance of 24.0 Ω at 0.5 mA zener current. This parameter directly affects regulation accuracy: lower rd means less output voltage variation under changing load or input conditions - critical for maintaining reference stability in high-resolution data acquisition systems.
Does HZ27-1TD-P-E have a specified temperature coefficient, and what is its value?
Yes, the HZ27-1TD-P-E has a zener voltage temperature coefficient of −0.04 %/°C (approximately −10.2 mV/°C). This negative TC is consistent across the 25.2–26.6 V range and enables predictable drift modeling in temperature-compensated reference designs when combined with positive-TC components.
HZ27-1TD-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:
- -
HZ27-1TD-P-E FAQ
1.How can I place an order for HZ27-1TD-P-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ27-1TD-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 HZ27-1TD-P-E reliable?
The price and inventory of HZ27-1TD-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 HZ27-1TD-P-E is usually 5 days.
3.What payment methods are accepted for HZ27-1TD-P-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ27-1TD-P-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ27-1TD-P-E?
HZ27-1TD-P-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ27-1TD-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 HZ27-1TD-P-E?
For technical support, including HZ27-1TD-P-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ27-1TD-P-E requirements.
6.How does Aetrix verify that HZ27-1TD-P-E is sourced from the original manufacturer or authorized distributors?
All HZ27-1TD-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 HZ27-1TD-P-E meets industry standards.
7.What is the process for return or replacement of HZ27-1TD-P-E?
All HZ27-1TD-P-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ27-1TD-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 HZ27-1TD-P-E part is unused and in its original packaging.
Return procedure for HZ27-1TD-P-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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