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Renesas HZS7A2L-JTA-E
- Part No.:
- HZS7A2L-JTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS7A2L-JTA-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
HZS7A2L-JTA-E from ROHM Semiconductor is a silicon epitaxial planar Zener diode designed for precision voltage regulation in stabilized power supplies, with a nominal zener voltage of 6.4–6.7 V, maximum power dissipation of 400 mW, dynamic resistance ≤15 Ω at 5 mA, and reverse leakage current ≤1 µA at 3.5 V. It supports high-speed automatic insertion on 5 mm-pitch PCBs.
For engineers reviewing the HZS7A2L-JTA-E datasheet, HZS7A2L-JTA-E pinout, HZS7A2L-JTA-E application, or HZS7A2L-JTA-E equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low dynamic impedance for stable reference performance, thermal stability up to 200°C junction temperature, and compatibility with automated assembly processes.
Technical Context
This device operates as a two-terminal voltage reference using controlled avalanche and Zener breakdown mechanisms. Its 6.4–6.7 V zener voltage range targets mid-range regulated supply rails where low temperature coefficient and tight voltage tolerance are critical.
The HZS7A2L-JTA-E exhibits ≤15 Ω dynamic resistance at 5 mA test current and ≤1 µA reverse leakage at VR = 3.5 V - parameters optimized for low-noise, low-drift biasing and feedback networks in linear regulators and sensing circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4 V min / 6.7 V max at IZ = 5 mA - defines precise regulation window for 6.5 V nominal reference applications |
| Dynamic Resistance (rd) | ≤15 Ω at IZ = 5 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage (IR) | ≤1 µA at VR = 3.5 V - guarantees low quiescent current in standby or battery-backed circuits |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact SMD layouts without forced cooling |
| Junction Temperature (Tj) | −55°C to +200°C - enables use in automotive engine control units and industrial power modules |
| Package | DO-35 (glass axial) - industry-standard through-hole package compatible with legacy and high-reliability board assemblies |
Pinout & Package
Package: DO-35 glass axial package with cathode band marking. Leads are tinned and suitable for wave soldering and high-speed automatic insertion at 5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Negative terminal of Zener junction | Connected to higher potential node in reverse-biased configuration; marked by cathode band |
| 2 (Anode) | Positive terminal of Zener junction | Connected to circuit ground or lower potential; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic impedance | ≤15 Ω enables stable regulation under varying load currents in feedback loops |
| Tight zener voltage tolerance | ±0.3 V at 6.5 V nominal supports accurate voltage referencing without trimming |
| High junction temperature rating | 200°C maximum allows deployment in under-hood automotive and high-power industrial environments |
| Low leakage current | ≤1 µA at 3.5 V ensures minimal error contribution in high-impedance bias networks |
Applications
| Automotive Engine Control Unit (ECU) Reference | Industrial Linear Regulator Feedback |
|---|---|
Use Scenario: Providing stable 6.5 V reference for microcontroller ADC and sensor biasing in engine management systems exposed to under-hood temperatures up to 150°C ambient. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp and stabilize reference rail voltage. Use Value: Maintains <±1% voltage accuracy across −40°C to +150°C ambient due to low tempco and 200°C Tj rating. | Use Scenario: Setting precise output voltage in discrete 12 V → 6.5 V linear regulator for PLC analog I/O modules requiring low-noise supply. IC Role / Device Role / Timing Role: Voltage reference element in op-amp feedback network controlling pass transistor conduction. Use Value: ≤15 Ω rd minimizes output drift during 10–100 mA load steps, improving regulation accuracy to ±0.5%. |
| Medical Sensor Signal Conditioning | Telecom Power Sequencing Circuit |
Use Scenario: Biasing photodiode amplifiers and RTD bridges in portable diagnostic devices where low leakage preserves signal integrity. IC Role / Device Role / Timing Role: Low-current voltage reference source establishing common-mode level for instrumentation amplifiers. Use Value: ≤1 µA reverse leakage prevents input offset errors in GΩ-range sensor interfaces. | Use Scenario: Enabling controlled power-up sequencing in multi-rail telecom line cards by triggering supervisor ICs when 6.5 V rail reaches regulation. IC Role / Device Role / Timing Role: Voltage threshold detector via comparator input tied to HZS7A2L-JTA-E-regulated node. Use Value: Tight 6.4–6.7 V tolerance ensures deterministic activation timing within ±10 ms of rail stabilization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4734A (ON Semiconductor) | Zener voltage 5.6 V ±5%, Pd = 1 W, DO-41 package, rd = 9 Ω | Higher power rating but 1.1 V lower nominal voltage; requires circuit redesign for 6.5 V target | Select only if system requires >400 mW dissipation and can accommodate 5.6 V reference |
| BZX55C6V2 (Vishay) | Zener voltage 6.2 V ±5%, Pd = 500 mW, DO-35 package, rd = 10 Ω, IR = 5 µA @ 4 V | Wider voltage tolerance (±0.31 V vs. ±0.15 V), higher leakage, same footprint | Acceptable for cost-sensitive designs where ±5% regulation is sufficient and leakage <5 µA is tolerable |
Compared with 1N4734A and BZX55C6V2, the HZS7A2L-JTA-E delivers tighter voltage tolerance (±0.15 V), lower leakage (≤1 µA), and optimized thermal robustness (200°C Tj) - making it preferred for automotive and precision industrial references where stability and long-term reliability are critical.
Availability
HZS7A2L-JTA-E is available at Aetrix Electronics and suitable for automotive engine control units, industrial linear regulator feedback networks, and medical sensor signal conditioning requiring stable component supply and traceable sourcing.
Supply support for HZS7A2L-JTA-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
ROHM Semiconductor is a Japanese semiconductor manufacturer specializing in analog, power, and sensor solutions for automotive, industrial, and consumer markets.
The HZS Series is engineered for high-stability voltage reference applications in harsh-environment power systems - emphasizing low dynamic impedance, tight voltage tolerance, and extended temperature capability.
FAQ
What is the exact zener voltage range specified for HZS7A2L-JTA-E?
The HZS7A2L-JTA-E has a guaranteed zener voltage range of 6.4 V minimum to 6.7 V maximum when tested at IZ = 5 mA and Ta = 25°C. This ±0.15 V tolerance around the nominal 6.5 V value is confirmed in ROHM's ADE-208-120A(Z) datasheet Rev 1, page 3, under "HZS7 A2" grade specifications.
Does HZS7A2L-JTA-E support automated PCB assembly?
Yes, HZS7A2L-JTA-E is explicitly qualified for 5 mm-pitch high-speed automatic insertion per the official datasheet features section. Its DO-35 axial package dimensions and lead finish comply with standard pick-and-place and wave soldering requirements used in high-volume manufacturing.
What is the maximum junction temperature rating for HZS7A2L-JTA-E?
The HZS7A2L-JTA-E has a maximum junction temperature (Tj) rating of +200°C, as specified in the Absolute Maximum Ratings table of the ROHM datasheet. This enables reliable operation in under-hood automotive applications and high-temperature industrial power supplies where ambient temperatures exceed 125°C.
How does the dynamic resistance of HZS7A2L-JTA-E affect regulation accuracy?
The dynamic resistance of HZS7A2L-JTA-E is ≤15 Ω at IZ = 5 mA. This low value limits output voltage deviation during load current changes - for example, a 10 mA step induces <150 mV shift - directly improving regulation accuracy in feedback and bias networks where HZS7A2L-JTA-E is deployed.
Is HZS7A2L-JTA-E RoHS compliant and halogen-free?
Yes, HZS7A2L-JTA-E meets RoHS Directive 2011/65/EU and is halogen-free per ROHM's material declarations. The "-E" suffix in the part number denotes compliance with both environmental standards, and full substance data is available in ROHM's official PPAP documentation for this device.
HZS7A2L-JTA-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:
- -
HZS7A2L-JTA-E FAQ
1.How can I place an order for HZS7A2L-JTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS7A2L-JTA-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 HZS7A2L-JTA-E reliable?
The price and inventory of HZS7A2L-JTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS7A2L-JTA-E is usually 5 days.
3.What payment methods are accepted for HZS7A2L-JTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS7A2L-JTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS7A2L-JTA-E?
HZS7A2L-JTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS7A2L-JTA-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 HZS7A2L-JTA-E?
For technical support, including HZS7A2L-JTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS7A2L-JTA-E requirements.
6.How does Aetrix verify that HZS7A2L-JTA-E is sourced from the original manufacturer or authorized distributors?
All HZS7A2L-JTA-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 HZS7A2L-JTA-E meets industry standards.
7.What is the process for return or replacement of HZS7A2L-JTA-E?
All HZS7A2L-JTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS7A2L-JTA-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 HZS7A2L-JTA-E part is unused and in its original packaging.
Return procedure for HZS7A2L-JTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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