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onsemi 1N5920BG
- Part No.:
- 1N5920BG
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N5920BG.pdf
- Description:
- DIODE ZENER 6.2V 3W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:2,169
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Product details
Overview
1N5920BG from onsemi is a 3 W axial-lead Zener diode with nominal zener voltage of 6.2 V, maximum zener impedance of 60.5 Ω at 2 mA test current, and surge rating of 98 W for 1 ms. It operates across −65 °C to +200 °C and is used for precision voltage regulation and overvoltage protection in DC power supplies and reference circuits.
For engineers reviewing the 1N5920BG datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DO-41 package details, thermal derating behavior, leakage current at VR, and real-world substitution guidance - all specific to the 1N5920BG variant.
Technical Context
The 1N5920BG employs a silicon-oxide passivated junction for stable breakdown characteristics and low leakage. Its zener voltage is guaranteed at TL = 30 °C (measured 3/8″ from case), with ±5% tolerance (B suffix) and temperature coefficient of approximately +2.5 mV/°C in the 6.2 V range.
It supports steady-state dissipation of 3 W at TL = 75 °C with 24 mW/°C derating above that point, and 1 W at TA = 50 °C with 6.67 mW/°C derating. The device exhibits ESD robustness >16 kV (HBM Class 3) and is Pb-free compliant (G suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V nominal (min 5.89 V, max 6.51 V @ IZT = 2 mA); defines regulated output level under stable bias conditions |
| Zener Impedance (ZZT) | 60.5 Ω max @ IZT = 2 mA; determines regulation sensitivity to load current changes |
| Max Power Dissipation (PD) | 3 W @ TL = 75 °C; requires heatsinking or lead length management for sustained operation |
| Surge Power Rating | 98 W for 1 ms non-repetitive pulse; enables transient overvoltage clamping without failure |
| Reverse Leakage (IR) | 5 μA max @ VR = 4 V; ensures minimal quiescent current in standby regulation circuits |
| Operating Temperature | −65 °C to +200 °C; supports industrial, automotive under-hood, and high-reliability embedded use |
| ESD Rating | Class 3 (>16 kV HBM); allows safe handling and assembly without special ESD controls |
Pinout & Package
Package: DO-41 (Case 59-10), axial-lead, transfer-molded thermosetting plastic. Cathode indicated by polarity band. Lead diameter uncontrolled within 0.028–0.034″ (0.71–0.86 mm). Mounting position unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener breakdown terminal | Connected to regulated voltage node; reverse-biased during normal operation |
| Anode | Reference/ground return | Typically tied to system ground or lower-potential rail; completes bias path for zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Pb-free (G suffix) compliance | Fully RoHS-compliant packaging with no lead content; meets global environmental directives |
| Surge robustness | 98 W peak pulse capability (1 ms) enables reliable transient suppression without derating |
| Low leakage performance | ≤5 μA @ 4 V reverse bias ensures minimal standby power loss in battery-powered systems |
| Stable ±5% tolerance | Tight VZ tolerance (B suffix) reduces need for post-production trimming in voltage references |
| High-temperature operation | Rated up to +200 °C junction temperature supports under-hood and industrial control environments |
Applications
| Voltage Reference Circuit | DC Power Supply Regulation |
|---|---|
|
Use Scenario: Providing stable 6.2 V reference for ADCs, comparators, or op-amp bias networks in sensor signal conditioning modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to deliver fixed reference potential independent of supply variation. Use Value: Delivers <±1% drift over −40 °C to +85 °C when combined with low-TCR resistors, enabling 12-bit accuracy in analog front-ends. |
Use Scenario: Regulating +5 V or +3.3 V rails derived from unregulated wall adapters or DC-DC converter outputs. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant output voltage by sinking excess current through cathode-to-ground path. Use Value: Maintains output regulation within ±3% under 10–90% load step changes due to low dynamic impedance (60.5 Ω). |
| Overvoltage Protection Clamp | Signal Level Translation |
|
Use Scenario: Protecting microcontroller I/O pins from ESD or inductive kickback in motor driver feedback paths. IC Role / Device Role / Timing Role: Fast-acting clamp limiting voltage excursions to ≤6.51 V during transients. Use Value: Absorbs 98 W surges for 1 ms without degradation, preventing latch-up or gate oxide damage in downstream ICs. |
Use Scenario: Translating 0–5 V logic signals to 0–3.3 V levels for interfacing legacy peripherals with modern low-voltage MCUs. IC Role / Device Role / Timing Role: Bidirectional clamping diode (anode-to-3.3 V rail, cathode-to-signal line) limiting high-side excursion. Use Value: Enables clean 3.3 V logic threshold alignment with <10 ns response time and <0.5 V forward drop at 1 mA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4735A | Same 6.2 V nominal VZ, but 1 W rating and higher ZZT (17 Ω @ 41 mA); TO-92 package | Limited to low-power signal references; unsuitable for >150 mW continuous dissipation | Select only for space-constrained PCBs where thermal mass is sufficient and surge immunity is secondary |
| BZX84-C6V2 | 6.2 V ±5%, SOT-23 package, 300 mW rating, ZZT = 10 Ω @ 5 mA | Designed for board-level voltage monitoring, not primary regulation; lower surge capability (40 W) | Prefer for high-density designs requiring reflow compatibility and fast turnaround, not for mains-connected clamps |
Compared with 1N5920BG, the 1N4735A offers identical voltage but lacks surge resilience and thermal headroom, while BZX84-C6V2 trades power handling for miniaturization - making 1N5920BG optimal for ruggedized 3 W shunt regulation where reliability trumps footprint.
Availability
1N5920BG is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, and medical instrument voltage references requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1N5920BG 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 1N5920BG belongs to the 1N5913B Series of 3 W Zener regulators designed for high-reliability voltage stabilization in harsh environments - emphasizing thermal stability, surge survivability, and Pb-free manufacturability.
FAQ
What is the exact zener voltage tolerance for 1N5920BG?
The 1N5920BG has a ±5% zener voltage tolerance, confirmed by the "B" suffix in its part number per onsemi's tolerance designation standard. Its rated VZ is 6.2 V nominal, with minimum 5.89 V and maximum 6.51 V measured at IZT = 2 mA and lead temperature TL = 30 °C. This tolerance is guaranteed across the full operating temperature range.
Can 1N5920BG be used in surface-mount designs?
No - the 1N5920BG uses a DO-41 axial-lead package (Case 59-10) and is not compatible with SMT assembly. It requires through-hole mounting with leads trimmed and formed. For surface-mount equivalents, consider the BZX84-C6V2 (SOT-23) or MMBZ5234B (SOT-23), though both are rated at ≤300 mW and lack the 98 W surge capability of the 1N5920BG.
What is the maximum allowable lead temperature during soldering for 1N5920BG?
The maximum lead temperature for soldering the 1N5920BG is 260 °C, applied at a distance of 1/16″ (1.6 mm) from the case for up to 10 seconds. This limit ensures no internal junction damage or delamination of the transfer-molded plastic body. Exceeding this condition risks irreversible degradation of zener characteristics.
How does the 1N5920BG's thermal derating work above 75°C?
The 1N5920BG derates linearly at 24 mW/°C above TL = 75 °C for steady-state operation. For example, at TL = 100 °C, maximum allowable power drops to 3 W − (25 × 0.024 W) = 2.4 W. Derating is based on lead temperature, not ambient - so proper lead length (3/8″ recommended) and thermal path design are critical for accurate thermal management.
Is the 1N5920BG suitable for automotive under-hood applications?
Yes - the 1N5920BG is rated for junction temperatures from −65 °C to +200 °C and features silicon-oxide passivated junctions for long-term stability. Its 98 W surge rating and >16 kV HBM ESD robustness meet typical under-hood requirements. However, system-level validation of thermal interface and vibration resistance remains essential before deployment.
1N5920BG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Box
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 2 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 4 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 200 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
1N5920BG FAQ
1.How can I place an order for 1N5920BG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5920BG 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 1N5920BG reliable?
The price and inventory of 1N5920BG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5920BG is usually 5 days.
3.What payment methods are accepted for 1N5920BG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5920BG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5920BG?
1N5920BG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5920BG 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 1N5920BG?
For technical support, including 1N5920BG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5920BG requirements.
6.How does Aetrix verify that 1N5920BG is sourced from the original manufacturer or authorized distributors?
All 1N5920BG 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 1N5920BG meets industry standards.
7.What is the process for return or replacement of 1N5920BG?
All 1N5920BG units undergo pre-shipment inspection (PSI). If there is an issue with 1N5920BG, 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 1N5920BG part is unused and in its original packaging.
Return procedure for 1N5920BG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5920BG 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
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