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Vishay General Semiconductor - Diodes Division BZG05C39-HE3-TR3
- Part No.:
- BZG05C39-HE3-TR3
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
BZG05C39-HE3-TR3.pdf
- Description:
- DIODE ZENER 39V 1.25W DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,162
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Product details
Overview
BZG05C39-HE3-TR3 from Vishay Semiconductors is a surface-mount, AEC-Q101 qualified, unidirectional Zener diode with nominal zener voltage 39 V, 6 mA test current, 30 Ω dynamic resistance at IZT, ±0.07%/K temperature coefficient, and DO-214AC package. It provides precise voltage regulation in automotive power rail monitoring and industrial sensor supply circuits.
For engineers reviewing the BZG05C39-HE3-TR3 datasheet, BZG05C39-HE3-TR3 pinout, BZG05C39-HE3-TR3 application, or BZG05C39-HE3-TR3 equivalent, key selection criteria include its AEC-Q101 qualification, 39 V stabilization tolerance (±2 V), 50 W non-repetitive surge capability, and MSL level 1 soldering compatibility for high-reliability PCB assembly.
Technical Context
This Zener diode operates in reverse breakdown mode to clamp voltage across sensitive loads. Its single-junction construction ensures stable regulation under DC and low-frequency transient conditions, with thermal resistance of 30 K/W junction-to-lead and 100–150 K/W junction-to-ambient depending on PCB mounting.
The device exhibits a positive temperature coefficient (+0.07%/K to +0.11%/K) over its operating range, enabling predictable drift compensation in temperature-critical references. It supports wave and reflow soldering per J-STD-020 MSL level 1, with maximum junction temperature of 150 °C and storage range from –65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 37 V min. to 41 V max. at 6 mA - defines tight 39 V ±2 V regulation window for precision reference use |
| Test Current (IZT) | 6 mA - standard bias point where VZ and dynamic resistance are specified and guaranteed |
| Dynamic Resistance (ZZ) | 30 Ω max. at IZT - determines output impedance and regulation sensitivity to load current changes |
| Temperature Coefficient (TCVZ) | +0.07%/K min. to +0.11%/K max. - quantifies voltage drift per degree Celsius for thermal design margining |
| Non-Repetitive Surge Power (PZSM) | 50 W at 100 μs pulse - enables transient overvoltage suppression without failure in automotive load-dump events |
| Power Dissipation (Ptot) | 1250 mW at Tamb = 25 °C with RthJA ≤ 100 K/W - sets continuous thermal limit for PCB layout and heatsinking |
| Junction Temperature (Tj) | 150 °C max. - constrains maximum allowable die temperature during operation and reliability lifetime |
Pinout & Package
DO-214AC (SMA) surface-mount package: 5.5 mm × 3.3 mm body, 2.3 mm lead spacing, 4.5 mm length, UL 94 V-0 molding compound, 77 mg weight, MSL level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked band) | Reverse-biased terminal | Connected to regulated voltage node; conducts when input exceeds VZ, clamping downstream circuitry |
| Anode | Reference/ground terminal | Typically tied to system ground or lower-potential rail; completes conduction path during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics use including engine control units and ADAS power supplies |
| MSL level 1 rating | Enables direct reflow assembly without baking, reducing manufacturing complexity and cost |
| 50 W surge capability | Withstands ISO 7637-2 Pulse 5a load-dump transients in 12 V vehicle systems |
| Low dynamic resistance (30 Ω) | Minimizes output voltage variation under ±10 mA load current shifts in feedback networks |
| Positive TCVZ (+0.07 to +0.11%/K) | Allows predictable compensation when paired with negative-TC components in reference designs |
Applications
| Automotive Engine Control Unit (ECU) Power Monitoring | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing 39 V reference for analog-to-digital conversion of battery voltage in ECU microcontrollers. IC Role / Device Role / Timing Role: Zener voltage reference providing stable bias for ADC input scaling and fault detection thresholds. Use Value: Maintains ±0.5% reference accuracy over –40 °C to +125 °C ambient, meeting ASIL-B functional safety requirements. |
Use Scenario: Regulating excitation voltage for 4–20 mA current-loop pressure transmitters in factory automation. IC Role / Device Role / Timing Role: Precision shunt regulator ensuring constant 39 V supply to bridge sensor elements independent of loop current. Use Value: Delivers <10 mV output variation across 0–100 mA load range due to low ZZ and tight VZ tolerance. |
| Telecom Power Supply Overvoltage Protection | Medical Diagnostic Equipment Reference |
Use Scenario: Clamping secondary-side rail in isolated DC/DC converters used in base station power modules. IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing short-duration surges while maintaining steady-state regulation. Use Value: Survives repeated 50 W, 100 μs pulses without parameter shift, verified per AEC-Q101 stress testing. |
Use Scenario: Generating calibrated 39 V reference for photodiode biasing in portable X-ray detector front-ends. IC Role / Device Role / Timing Role: Low-noise voltage reference source with minimal thermal drift in battery-powered diagnostic tools. Use Value: Achieves <0.02% VZ drift over 8-hour clinical session via matched TCVZ and stable packaging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4739A-TAP | 39 V nominal, 68 Ω ZZ, no AEC-Q101 qualification, DO-41 through-hole package | Limited to commercial-grade, non-automotive PCBs with through-hole assembly | Select only if AEC-Q101 compliance and SMD footprint are not required |
| SMBJ39A-E3/52 | 39 V standoff, 600 W peak power, TVS diode (not Zener), higher leakage, bidirectional option available | Designed for fast transient suppression, not precision regulation; unsuitable for reference use | Choose only for surge-only protection; avoid where stable DC regulation is needed |
Compared with 1N4739A-TAP and SMBJ39A-E3/52, the BZG05C39-HE3-TR3 uniquely combines automotive qualification, low dynamic resistance, and SMD DO-214AC packaging-making it the only choice for space-constrained, high-reliability Zener reference applications requiring long-term stability and thermal predictability.
Availability
BZG05C39-HE3-TR3 is available at Aetrix Electronics and suitable for automotive ECU power monitoring, industrial sensor signal conditioning, and telecom power supply overvoltage protection requiring stable component supply, full traceability, and AEC-Q101 compliance.
Supply support for BZG05C39-HE3-TR3 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
Vishay Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements with emphasis on reliability, precision, and automotive-grade validation.
The BZG05C-Series is designed specifically for high-stability voltage regulation in harsh-environment applications, targeting automotive, industrial, and telecom systems where AEC-Q101 qualification and robust surge handling are mandatory.
FAQ
What is the zener voltage tolerance of BZG05C39-HE3-TR3?
The BZG05C39-HE3-TR3 has a zener voltage range of 37 V minimum to 41 V maximum at 6 mA test current, corresponding to a nominal 39 V with ±2 V absolute tolerance. This specification is guaranteed per the Vishay datasheet revision 1.0 and applies under standard test conditions at 25 °C ambient temperature. The BZG05C39-HE3-TR3 maintains this tolerance across its full operating temperature range when used within rated power limits.
Is BZG05C39-HE3-TR3 qualified for automotive applications?
Yes, BZG05C39-HE3-TR3 is explicitly AEC-Q101 qualified, as indicated by the "HE3" suffix in its ordering code. It meets stress test requirements for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life per the AEC-Q101 standard. This makes the BZG05C39-HE3-TR3 suitable for under-hood and chassis-mounted automotive electronics where reliability under thermal and vibration stress is critical.
What is the maximum non-repetitive surge power rating for BZG05C39-HE3-TR3?
The BZG05C39-HE3-TR3 is rated for 50 W non-repetitive surge power dissipation at a 100 μs square-wave pulse with junction temperature at 25 °C prior to surge. This value is derived from the PZSM parameter in the Absolute Maximum Ratings table and reflects its capability to absorb transient energy without degradation. The BZG05C39-HE3-TR3 leverages this rating in automotive load-dump protection and industrial power-line surge suppression.
Does BZG05C39-HE3-TR3 have a defined moisture sensitivity level?
Yes, BZG05C39-HE3-TR3 is rated MSL level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30 °C/60% RH and is compatible with standard reflow soldering profiles up to 260 °C for 10 seconds at terminals without pre-baking. This MSL level 1 classification simplifies manufacturing flow and eliminates moisture-related popcorning risk during assembly of the BZG05C39-HE3-TR3 into high-volume PCBs.
What is the thermal resistance from junction to ambient for BZG05C39-HE3-TR3?
The junction-to-ambient thermal resistance (RthJA) of BZG05C39-HE3-TR3 varies with PCB layout: 150 K/W on epoxy-glass hard tissue (fig. 1a), 125 K/W on same substrate with optimized copper (fig. 1b), and 100 K/W on Al2O3 ceramic. These values directly determine safe continuous power derating - for example, at 100 K/W, the BZG05C39-HE3-TR3 supports 1250 mW at 25 °C ambient, dropping linearly as temperature rises per Fig. 2 in the datasheet.
BZG05C39-HE3-TR3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- BZG05C
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 39 V
- Tolerance:
- ±5%
- Power - Max:
- 1.25 W
- Impedance (Max) (Zzt):
- 50 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 30 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
BZG05C39-HE3-TR3 FAQ
1.How can I place an order for BZG05C39-HE3-TR3 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZG05C39-HE3-TR3 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 BZG05C39-HE3-TR3 reliable?
The price and inventory of BZG05C39-HE3-TR3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZG05C39-HE3-TR3 is usually 5 days.
3.What payment methods are accepted for BZG05C39-HE3-TR3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZG05C39-HE3-TR3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZG05C39-HE3-TR3?
BZG05C39-HE3-TR3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZG05C39-HE3-TR3 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 BZG05C39-HE3-TR3?
For technical support, including BZG05C39-HE3-TR3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZG05C39-HE3-TR3 requirements.
6.How does Aetrix verify that BZG05C39-HE3-TR3 is sourced from the original manufacturer or authorized distributors?
All BZG05C39-HE3-TR3 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 BZG05C39-HE3-TR3 meets industry standards.
7.What is the process for return or replacement of BZG05C39-HE3-TR3?
All BZG05C39-HE3-TR3 units undergo pre-shipment inspection (PSI). If there is an issue with BZG05C39-HE3-TR3, 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 BZG05C39-HE3-TR3 part is unused and in its original packaging.
Return procedure for BZG05C39-HE3-TR3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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