My Inquiry
My Account
Renesas HZS7B2JTA-E
- Part No.:
- HZS7B2JTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS7B2JTA-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:18,550
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HZS7B2JTA-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 6.9–7.2 V, maximum power dissipation of 400 mW, dynamic resistance ≤15 Ω at 5 mA, and reverse current ≤1 µA at 3.5 V. It supports high-speed automatic insertion on 5 mm-pitch PCBs in industrial power management circuits.
For engineers reviewing the HZS7B2JTA-E datasheet, HZS7B2JTA-E pinout, HZS7B2JTA-E application, or HZS7B2JTA-E equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low dynamic impedance for ripple suppression, thermal stability up to 200°C junction temperature, and compatibility with through-hole assembly processes requiring axial lead form factor.
Technical Context
This discrete Zener diode operates in reverse breakdown mode to maintain stable reference voltage under varying load and temperature conditions. Its epitaxial planar structure ensures tight VZ distribution and low leakage across production lots.
Designed for DC-stabilized supplies, it delivers specified performance only under DC test conditions per ADE-208-120A(Z) Rev 1, with zener current IZ = 5 mA, test voltage VR = 3.5 V for IR, and thermal derating defined by Fig.3 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.9 V min to 7.2 V max at IZ = 5 mA - defines regulated output range in feedback loops |
| Dynamic Resistance (rd) | ≤15 Ω at IZ = 5 mA - determines ripple rejection capability in low-noise supplies |
| Reverse Current (IR) | ≤1 µA at VR = 3.5 V - ensures minimal standby power loss in battery-backed circuits |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - sets maximum continuous DC power handling before thermal shutdown |
| Junction Temperature (Tj) | −55°C to +200°C - enables operation in automotive engine control and industrial motor drive environments |
| Package Type | DO-35 glass axial package - supports automated insertion and meets IPC-A-610 Class 2 mechanical reliability |
Pinout & Package
DO-35 glass axial package with cathode band marking; leads are unmarked anode and banded cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to higher potential node in reverse-biased regulation configuration |
| 2 (Unbanded End) | Anode | Connected to ground or lower potential reference point in shunt regulator topology |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | ≤15 Ω enables <10 mV ripple transmission in 12 V supply rails with 100 mA load variation |
| Wide zener voltage spectrum | 6.9–7.2 V range allows precise matching to 7 V logic supply references or op-amp biasing nodes |
| High junction temperature rating | 200°C Tj supports placement near power MOSFETs or transformers without derating |
| 5 mm-pitch insertion compatibility | Axial DO-35 body length and lead spacing meet JIS C 5022 and JEDEC DO-35 mechanical standards |
Applications
| Industrial Power Supply Reference | Automotive ECU Voltage Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated flyback converters for PLC I/O modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing error signal to PWM controller TL431. Use Value: 15 Ω rd reduces output voltage deviation to ±0.5% over 0–100 mA load swing. | Use Scenario: Clamping transient spikes on 5 V sensor supply rail in engine control units. IC Role / Device Role / Timing Role: Overvoltage protection element limiting rail excursion during load dump events. Use Value: 200°C Tj rating prevents thermal runaway during sustained 125°C ambient exposure. |
| Test Equipment Calibration Reference | Medical Device Bias Generator |
Use Scenario: Generating stable 7.0 V reference for multimeter ADC front-end circuitry. IC Role / Device Role / Timing Role: Precision DC voltage source for analog-to-digital conversion offset correction. Use Value: Tight 6.9–7.2 V VZ tolerance eliminates need for post-calibration trimming resistors. | Use Scenario: Establishing bias point for low-noise instrumentation amplifiers in patient monitoring systems. IC Role / Device Role / Timing Role: Low-drift DC reference ensuring amplifier common-mode rejection >100 dB. Use Value: ≤1 µA IR at 3.5 V minimizes current injection into sensitive analog signal paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4734A | Zener voltage 5.6 V ±5%, Pd = 1 W, DO-41 package, rd = 9 Ω | Higher power but fixed 5.6 V output - unsuitable for 7 V reference designs | Select only if system requires ≥1 W dissipation and 5.6 V regulation |
| BZX55C6V8 | Zener voltage 6.8 V ±5%, Pd = 500 mW, DO-35 package, rd = 20 Ω | Wider VZ tolerance and higher impedance - degrades regulation accuracy in precision supplies | Acceptable for non-critical clamping where ±5% VZ and 20 Ω rd are acceptable |
Compared with 1N4734A and BZX55C6V8, HZS7B2JTA-E offers tighter 6.9–7.2 V tolerance, lower 15 Ω dynamic resistance, and guaranteed 400 mW operation in DO-35 - making it optimal for space-constrained, high-accuracy 7 V reference designs requiring thermal resilience.
Availability
HZS7B2JTA-E is available at Aetrix Electronics and suitable for industrial power supply reference, automotive ECU voltage clamp, and medical device bias generator applications requiring stable component supply and traceable sourcing.
Supply support for HZS7B2JTA-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.
HZS Series Zener diodes are engineered for high-reliability voltage stabilization in compact through-hole power management systems, emphasizing thermal robustness and production-insertion compatibility.
FAQ
What is the exact zener voltage range for HZS7B2JTA-E?
HZS7B2JTA-E has a guaranteed zener voltage range of 6.9 V minimum to 7.2 V maximum when tested at IZ = 5 mA, per ADE-208-120A(Z) Rev 1 specification sheet. This grade (B2) reflects tighter tolerance than standard commercial Zeners and is validated under DC test conditions only.
Does HZS7B2JTA-E support surface-mount assembly?
No, HZS7B2JTA-E uses a DO-35 glass axial package with radial leads intended for through-hole mounting and 5 mm-pitch high-speed automatic insertion. It is not compatible with reflow or wave soldering processes used for SMD components, and no SMT variant exists in the HZS Series.
What is the maximum allowable reverse current for HZS7B2JTA-E?
The maximum reverse current for HZS7B2JTA-E is 1 µA when measured at VR = 3.5 V and Ta = 25°C, as specified in the Electrical Characteristics table. This low leakage ensures minimal quiescent power draw in always-on circuits such as battery-backed real-time clocks.
Can HZS7B2JTA-E be used in place of a 7.0 V Zener diode in existing designs?
Yes, HZS7B2JTA-E is suitable as a direct replacement for 7.0 V Zener diodes where the design accommodates its 6.9–7.2 V range and DO-35 package dimensions. Its 15 Ω dynamic resistance and 400 mW rating improve regulation stability compared to legacy parts like 1N4734A in low-power shunt configurations.
Is thermal derating data available for HZS7B2JTA-E?
Yes, Figure 3 in the ADE-208-120A(Z) Rev 1 datasheet provides thermal derating curves showing linear reduction of Pd from 400 mW at 25°C to zero at 180°C ambient, based on 2.5 mm × 3 mm phenolic PCB mounting. Derating must follow this curve to maintain HZS7B2JTA-E junction temperature below 200°C.
HZS7B2JTA-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:
- -
HZS7B2JTA-E FAQ
1.How can I place an order for HZS7B2JTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS7B2JTA-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 HZS7B2JTA-E reliable?
The price and inventory of HZS7B2JTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS7B2JTA-E is usually 5 days.
3.What payment methods are accepted for HZS7B2JTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS7B2JTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS7B2JTA-E?
HZS7B2JTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS7B2JTA-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 HZS7B2JTA-E?
For technical support, including HZS7B2JTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS7B2JTA-E requirements.
6.How does Aetrix verify that HZS7B2JTA-E is sourced from the original manufacturer or authorized distributors?
All HZS7B2JTA-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 HZS7B2JTA-E meets industry standards.
7.What is the process for return or replacement of HZS7B2JTA-E?
All HZS7B2JTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS7B2JTA-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 HZS7B2JTA-E part is unused and in its original packaging.
Return procedure for HZS7B2JTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS7B2JTA-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…
