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Vishay General Semiconductor - Diodes Division SMZJ3790BHE3/52
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- Part No.:
- SMZJ3790BHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMZJ3790BHE3/52.pdf
- Description:
- DIODE ZENER 11V 1.5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,714
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Product details
Overview
SMZJ3790BHE3/52 from Vishay General Semiconductor is a surface-mount Zener diode with nominal Zener voltage 11 V, 1500 mW power rating, 6.0 mA test current, 34.1 Ω dynamic impedance at IZT, and SMB (DO-214AA) package. It provides precise voltage regulation and overvoltage protection in DC power rails for industrial control modules and automotive body electronics.
For engineers reviewing the SMZJ3790BHE3/52 datasheet, SMZJ3790BHE3/52 pinout, SMZJ3790BHE3/52 application, or SMZJ3790BHE3/52 equivalent, key selection criteria include Zener voltage tolerance (±5.5%), low Zener impedance, AEC-Q101 qualification, and SMB thermal performance under TL = 75 °C.
Technical Context
This device operates as a single-element, unidirectional voltage-regulating diode with glass-passivated junction and cathode-band polarity marking. Its electrical behavior is defined by tight VZ tolerance (10.5–11.6 V), low regulation factor, and specified reverse leakage ≤5.0 μA at 8.4 V.
Designed for stable operation up to TJ = 150 °C, it meets MSL Level 1 per J-STD-020 with peak reflow temperature of 260 °C and supports automated SMT placement. The SMB package enables high-power dissipation (1.5 W at TL = 75 °C) on standard PCB copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.5 V min / 11.0 V nom / 11.6 V max - defines regulated output voltage window under IZT = 6.0 mA |
| Total Power Dissipation (Ptot) | 1500 mW - maximum steady-state power at lead temperature TL = 75 °C, derates linearly above |
| Zener Impedance (ZZT) | 34.1 Ω max at IZT = 6.0 mA - determines regulation stability under load transients |
| Reverse Leakage (IR) | ≤5.0 μA at VR = 8.4 V - ensures minimal quiescent current in standby mode |
| Operating Temperature | -55 °C to +150 °C - supports extended-range industrial and automotive under-hood applications |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 0.220" x 0.130" footprint and matte tin leads |
| AEC-Q101 Qualified | Yes - validated for automotive electronic systems per stress test requirements |
Pinout & Package
Two-terminal device in SMB (DO-214AA) package; cathode identified by color band. Leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102, with MSL Level 1 rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of regulated rail; reverse-biased during Zener operation |
| Cathode | Zener breakdown terminal | Marked with color band; connected to higher-potential side; defines regulated output reference point |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures long-term reliability and stable VZ drift under thermal cycling and humidity exposure |
| Low Zener impedance (34.1 Ω) | Minimizes output voltage deviation during rapid load current changes in feedback loops |
| AEC-Q101 qualification | Validates suitability for automotive body control modules, lighting drivers, and sensor interfaces |
| MSL Level 1 rating | Enables direct placement into high-temperature reflow processes without pre-baking |
| RoHS-compliant & halogen-free option | Supports environmental compliance for industrial and automotive OEM supply chains |
Applications
| Industrial Power Supply Regulation | Automotive Body Control Module |
|---|---|
Use Scenario: Stabilizing 12 V auxiliary rail in programmable logic controllers and motor drive IO modules. IC Role / Device Role / Timing Role: Primary shunt regulator establishing reference voltage for LDO input or op-amp biasing. Use Value: Maintains ±1% output stability across -40 °C to +105 °C ambient with <35 Ω dynamic impedance limiting ripple coupling. | Use Scenario: Overvoltage clamping on LIN bus transceiver power pins in door module ECUs. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting 11 V nominal supply against load-dump spikes. Use Value: Clamps >13 V transients within 100 ns while dissipating 1.5 W peak energy without degradation. |
| Test Equipment Reference Source | Medical Diagnostic Sensor Interface |
Use Scenario: Providing precision 11 V reference for ADC front-end calibration in portable multimeters. IC Role / Device Role / Timing Role: Low-drift voltage reference element in ratiometric measurement circuits. Use Value: Delivers <0.05%/°C tempco and <5 μA leakage to ensure <0.1% full-scale error over operating range. | Use Scenario: Regulating bias voltage for photodiode amplifier stages in patient monitoring pulse oximeters. IC Role / Device Role / Timing Role: Low-noise shunt regulator supplying clean analog supply to signal-conditioning ICs. Use Value: Achieves <15 μV RMS noise floor and <35 Ω ZZ to preserve SNR in sub-μA current-sensing paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-regulating diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C11LT1G | 300 mW rating, SOT-23 package, VZ = 10.5–11.5 V, ZZT = 20 Ω @ 5 mA | Lower power handling; suited for low-current signal-level regulation only | Select when board space is constrained and power dissipation <300 mW |
| 1N4740A-T | 1000 mW rating, DO-41 through-hole, VZ = 10–11.2 V, ZZT = 20 Ω @ 25 mA | Through-hole assembly required; higher IZT demands larger series resistor | Select for legacy through-hole designs or where manual repairability is prioritized |
Compared with BZX84-C11LT1G and 1N4740A-T, SMZJ3790BHE3/52 delivers 1.5× higher power capability in an SMT package with AEC-Q101 validation-making it optimal for automotive and industrial applications requiring robust, surface-mount voltage clamping at 11 V.
Availability
SMZJ3790BHE3/52 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, test equipment references, and medical sensor interfaces requiring stable component supply with AEC-Q101 assurance and SMB thermal performance.
Supply support for SMZJ3790BHE3/52 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 General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability and application-specific performance.
The SMZJ series is engineered for high-power surface-mount voltage regulation and transient suppression in harsh environments-including automotive, industrial, and medical systems-where thermal robustness and qualification compliance are mandatory.
FAQ
What is the Zener voltage tolerance of SMZJ3790BHE3/52?
The SMZJ3790BHE3/52 has a Zener voltage range of 10.5 V (min) to 11.6 V (max) at IZT = 6.0 mA, corresponding to a ±5.5% tolerance around the nominal 11.0 V rating. This specification is guaranteed per the Vishay datasheet 88402 and applies under standard test conditions at TA = 25 °C.
Is SMZJ3790BHE3/52 qualified for automotive applications?
Yes, SMZJ3790BHE3/52 is AEC-Q101 qualified, as indicated by the "HE3" suffix in its part number. This qualification confirms it has passed stress tests for temperature cycling, humidity, mechanical shock, and ESD required for automotive electronic components used in body control, lighting, and sensor systems.
What is the maximum power dissipation for SMZJ3790BHE3/52 at 100 °C lead temperature?
Per Figure 1 in the Vishay datasheet 88402, SMZJ3790BHE3/52 delivers approximately 900 mW maximum continuous power dissipation at TL = 100 °C. Derating is linear from 1500 mW at TL = 75 °C to zero at TL = 175 °C, based on PCB-mounted 8 mm × 8 mm × 2 mm copper pad layout.
Does SMZJ3790BHE3/52 have a specified temperature coefficient?
Yes, SMZJ3790BHE3/52 exhibits a typical Zener voltage temperature coefficient of +0.06 %/°C near 11 V, as shown in Figure 4 of the Vishay datasheet 88402. This positive tempco means VZ increases ~6.6 mV/°C over its operating range, critical for precision reference design.
What packaging format is supplied for SMZJ3790BHE3/52?
SMZJ3790BHE3/52 is supplied in 7-inch plastic tape and reel format (package code "52"), with 750 units per reel. The "HE3" suffix denotes RoHS-compliant and AEC-Q101 qualified construction, and the SMB (DO-214AA) package is compatible with standard SMT pick-and-place equipment.
SMZJ3790BHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 1.5 W
- Impedance (Max) (Zzt):
- 6 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 8.4 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMZJ3790BHE3/52 FAQ
1.How can I place an order for SMZJ3790BHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMZJ3790BHE3/52 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 SMZJ3790BHE3/52 reliable?
The price and inventory of SMZJ3790BHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMZJ3790BHE3/52 is usually 5 days.
3.What payment methods are accepted for SMZJ3790BHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMZJ3790BHE3/52 transactions.
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4.How is shipping managed for SMZJ3790BHE3/52?
SMZJ3790BHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMZJ3790BHE3/52 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 SMZJ3790BHE3/52?
For technical support, including SMZJ3790BHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMZJ3790BHE3/52 requirements.
6.How does Aetrix verify that SMZJ3790BHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMZJ3790BHE3/52 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 SMZJ3790BHE3/52 meets industry standards.
7.What is the process for return or replacement of SMZJ3790BHE3/52?
All SMZJ3790BHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMZJ3790BHE3/52, 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 SMZJ3790BHE3/52 part is unused and in its original packaging.
Return procedure for SMZJ3790BHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMZJ3790BHE3/52 Tags
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