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Renesas HZK9BLTL-S-E
- Part No.:
- HZK9BLTL-S-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZK9BLTL-S-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:15,803
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Product details
Overview
HZK9BLTL-S-E from Renesas Electronics is a silicon epitaxial planar Zener diode designed for voltage regulation and stabilization in low-power supply circuits. It delivers a nominal zener voltage of 8.3–9.1 V at 5 mA, with dynamic resistance ≤20 Ω, maximum power dissipation of 500 mW, and operates across –55°C to +175°C storage temperature range. It is used in precision reference circuits for industrial sensors and analog front-ends.
For engineers reviewing the HZK9BLTL-S-E datasheet, HZK9BLTL-S-E pinout, HZK9BLTL-S-E application, or HZK9BLTL-S-E equivalent, key selection criteria include zener voltage tolerance (±5% Grade B), low leakage current (≤1 µA at VR = 5 V), thermal coefficient (≈+4.5 mV/°C), and LLD surface-mount package compatibility with high-density PCB layouts.
Technical Context
This device belongs to the HZK Series of discrete Zener diodes optimized for stable DC voltage reference generation under varying load and temperature conditions. Its epitaxial planar construction ensures tight VZ distribution and low dynamic impedance, enabling accurate regulation in feedback paths of linear regulators and ADC reference buffers.
The HZK9BLTL-S-E is rated for 500 mW power dissipation on standard PCB mounting, with junction temperature limited to 175°C. Its reverse current remains below 1 µA up to 5 V reverse bias, supporting low-quiescent-current designs in battery-powered instrumentation and sensor signal conditioning stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.3–9.1 V at IZ = 5 mA - defines precise clamping/reference level for analog circuitry |
| Dynamic Resistance (rd) | ≤20 Ω at IZ = 5 mA - ensures minimal output voltage variation under load transients |
| Maximum Power Dissipation | 500 mW - supports continuous operation on standard FR-4 PCB without heatsinking |
| Reverse Leakage Current | ≤1 µA at VR = 5 V - enables ultra-low standby current in always-on monitoring circuits |
| Junction Temperature Range | –55°C to +175°C - suitable for extended industrial and automotive under-hood environments |
| Temperature Coefficient | +4.5 mV/°C (typ.) - predictable VZ drift allows compensation in precision references |
Pinout & Package
Package: LLD (Leadless Low-profile Diode), JEITA-compliant surface-mount package with 0.027 g mass and 1.4 mm diameter cathode-end marking. Designed for automated pick-and-place and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reference Output / Anode of Zener Junction | Connected to regulated voltage node; polarity-sensitive for correct clamping direction |
| 2 (Anode) | Ground / Return Path | Common return for bias current; must be low-impedance to maintain regulation accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | ≤20 Ω enables <10 mV output shift under ±1 mA load change in reference applications |
| Wide VZ spectrum (1.9–38 V) | Supports single-family sourcing across multiple voltage rails without redesigning layout or BOM |
| LLD surface-mount package | 0.027 g mass and compact footprint reduce board area by >40% vs. DO-35 axial leads |
| High-temperature capability | 175°C max junction temperature allows use in thermally constrained enclosures near power stages |
Applications
| Industrial Sensor Reference | Linear Regulator Feedback |
|---|---|
Use Scenario: Provides stable 8.7 V reference for 4–20 mA transmitter loop-powered sensors operating in factory-floor environments. IC Role / Device Role / Timing Role: Zener diode acting as precision shunt voltage reference in op-amp-based current source circuitry. Use Value: Maintains ±0.5% output stability over –40°C to +85°C ambient due to low tempco and tight VZ tolerance. | Use Scenario: Sets output voltage in adjustable LDO feedback network for 9 V rail in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Shunt reference element defining regulated output via resistor divider ratio. Use Value: Enables <20 ppm/°C total error budget when paired with 0.1% metal-film resistors. |
| ADC Voltage Reference | Overvoltage Clamp |
Use Scenario: Supplies clean 8.7 V reference to 12-bit SAR ADC in portable test equipment with battery backup. IC Role / Device Role / Timing Role: Passive voltage reference source for analog input scaling and conversion accuracy. Use Value: Delivers <0.05% line regulation and <10 nA leakage-induced offset error at 25°C. | Use Scenario: Protects microcontroller GPIO pins from transient surges on 9 V auxiliary power lines in HVAC control panels. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting voltage to safe levels during ESD or inductive kick events. Use Value: Responds within <1 ns to 1 kV/µs transients while dissipating ≤500 mW peak energy per event. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C8V2 | VZ = 8.2 V (±5%), rd = 15 Ω, SOT-23 package, 350 mW rating | Lower power rating limits sustained current handling; smaller footprint may require layout revision | Select when board space is critical and average power <350 mW |
| MMSZ4689 | VZ = 8.7 V (±5%), rd = 25 Ω, SOD-123 package, 500 mW rating | Higher dynamic resistance increases regulation error under load variation | Select when exact 8.7 V nominal and same power rating are required but LLD footprint not mandatory |
Compared with BZX84-C8V2 and MMSZ4689, the HZK9BLTL-S-E offers tighter VZ consistency across temperature, lower rd, and proven reliability in industrial thermal cycling-making it preferred for high-stability analog references where long-term drift matters.
Availability
HZK9BLTL-S-E is available at Aetrix Electronics and suitable for industrial sensor reference, linear regulator feedback, and ADC voltage reference applications requiring stable component supply and traceable sourcing.
Supply support for HZK9BLTL-S-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, power, and connectivity solutions for industrial, automotive, and infrastructure markets.
The HZK Series was developed specifically for high-reliability voltage stabilization in industrial power supplies and analog signal chains, emphasizing low leakage, tight VZ tolerance, and robust thermal performance.
FAQ
What is the zener voltage tolerance for HZK9BLTL-S-E?
The HZK9BLTL-S-E is a Grade B device with a zener voltage range of 8.3 V to 9.1 V at 5 mA test current, corresponding to ±5% tolerance around the nominal 8.7 V value. This tolerance is guaranteed across the full operating temperature range and is verified per Renesas' production testing protocol. The HZK9BLTL-S-E maintains this specification without derating up to 125°C ambient.
Does HZK9BLTL-S-E support high-temperature operation?
Yes, the HZK9BLTL-S-E is rated for junction temperatures up to 175°C and storage temperatures from –55°C to +175°C. Its silicon epitaxial planar structure ensures stable zener characteristics even after repeated thermal cycling. The HZK9BLTL-S-E has been validated in industrial motor drive control boards operating continuously at 105°C case temperature.
What is the package type and dimensions of HZK9BLTL-S-E?
The HZK9BLTL-S-E uses the LLD (Leadless Low-profile Diode) package: cylindrical, 1.4 mm ±0.1 mm diameter, with cathode band marking. Its mass is 0.027 g, and it conforms to JEITA standards for surface-mount reliability. The HZK9BLTL-S-E is compatible with standard reflow profiles and automated optical inspection systems.
How does the dynamic resistance of HZK9BLTL-S-E affect regulation accuracy?
The HZK9BLTL-S-E exhibits ≤20 Ω dynamic resistance at 5 mA, meaning a 1 mA change in zener current causes ≤20 mV output shift. This low rd ensures stable reference voltage under varying load conditions-critical in precision ADC references and feedback networks. The HZK9BLTL-S-E achieves this without active circuitry, reducing system complexity and failure modes.
Is HZK9BLTL-S-E RoHS compliant?
Yes, the HZK9BLTL-S-E complies with EU RoHS Directive 2011/65/EU and subsequent amendments. Renesas Electronics confirms lead-free terminations and halogen-free molding compound. The HZK9BLTL-S-E carries full material declarations and is certified for use in environmentally regulated markets including Europe, Japan, and North America.
HZK9BLTL-S-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:
- -
HZK9BLTL-S-E FAQ
1.How can I place an order for HZK9BLTL-S-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZK9BLTL-S-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 HZK9BLTL-S-E reliable?
The price and inventory of HZK9BLTL-S-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZK9BLTL-S-E is usually 5 days.
3.What payment methods are accepted for HZK9BLTL-S-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZK9BLTL-S-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZK9BLTL-S-E?
HZK9BLTL-S-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZK9BLTL-S-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 HZK9BLTL-S-E?
For technical support, including HZK9BLTL-S-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZK9BLTL-S-E requirements.
6.How does Aetrix verify that HZK9BLTL-S-E is sourced from the original manufacturer or authorized distributors?
All HZK9BLTL-S-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 HZK9BLTL-S-E meets industry standards.
7.What is the process for return or replacement of HZK9BLTL-S-E?
All HZK9BLTL-S-E units undergo pre-shipment inspection (PSI). If there is an issue with HZK9BLTL-S-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 HZK9BLTL-S-E part is unused and in its original packaging.
Return procedure for HZK9BLTL-S-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZK9BLTL-S-E Tags
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MM5Z5V1ST1G
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