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onsemi 1PMT5933BT1G
- Part No.:
- 1PMT5933BT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5933BT1G.pdf
- Description:
- DIODE ZENER 22V 3.2W POWERMITE
- Quantity:
- Payment:
- Shipping:
Inventory:2,971
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Product details
Overview
1PMT5933BT1G from onsemi is a 3.2 W surface-mount Zener diode in the POWERMITE (DO-216AA) package, with a nominal Zener voltage of 22 V, test current of 17 mA, dynamic impedance of 17.5 Ω at IZT, and reverse leakage current ≤1.0 µA at VR = 16.7 V. It delivers stable voltage regulation in space-constrained portable electronics and industrial power rails.
For engineers reviewing the 1PMT5933BT1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 22 V regulation tolerance (±5%), low-profile 1.1 mm height, 8.45 mm² footprint, 23 °C/W junction-to-cathode thermal resistance, and Class 3 ESD rating (>16 kV HBM).
Technical Context
This Zener diode operates as a precision shunt voltage regulator, maintaining a stable reverse breakdown voltage across varying load currents. Its thermal design leverages the cathode tab for direct heat conduction, enabling 3.2 W dissipation at Ttab = 75 °C - significantly higher than standard SOD-123 devices.
The device exhibits a negative temperature coefficient typical of mid-voltage Zeners (~−0.05 %/°C near 22 V), with dynamic impedance measured at 60 Hz AC perturbation (iZ(rms) = 0.1 IZ(dc)). Capacitance is 100 pF at 50% VR, supporting moderate-frequency noise suppression without compromising stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V nominal, 20.9–23.1 V range at IZT = 17 mA - ensures ±5% regulation accuracy under defined bias |
| Power Dissipation | 3.2 W maximum at cathode tab temperature of 75 °C - enables high-power density regulation without heatsink |
| Zener Impedance (ZZT) | 17.5 Ω at IZT = 17 mA - determines output voltage variation under load transients |
| Reverse Leakage (IR) | ≤1.0 µA at VR = 16.7 V - minimizes standby current in battery-powered systems |
| Thermal Resistance (RJcathode) | 23 °C/W - allows efficient heat transfer from junction to PCB via cathode pad |
| Package | POWERMITE (DO-216AA), 1.90 × 1.96 × 1.00 mm - 50% smaller footprint than SMA, 1.1 mm max height |
| ESD Rating | Class 3 (>16 kV HBM) - supports robust handling in automated assembly and end-use environments |
Pinout & Package
Package: POWERMITE (DO-216AA), molded thermosetting plastic case with full metallic bottom, integral heat sink tabs, and cathode polarity band. Dimensions: 1.90 mm × 1.96 mm × 1.00 mm, 1.1 mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked) | Cathode | Connected to heat-conducting tab; primary thermal path to PCB; polarity indicator band adjacent |
| 2 | Anode | Standard anode connection; non-thermal terminal; soldered to signal or ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile thermal package | 1.1 mm max height with 23 °C/W RJcathode - enables ultra-thin designs while sustaining 3.2 W |
| Full metallic bottom | Eliminates flux entrapment during reflow - improves solder joint reliability and process yield |
| JEDEC-registered DO-216AA | Ensures mechanical compatibility with standard pick-and-place and reflow tooling |
| Pb-free and RoHS compliant | Meets global environmental compliance requirements without derating or performance trade-offs |
Applications
| Smartphone Power Management | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating reference voltage for PMIC feedback loops and battery charge control ICs in sub-8 mm thick handsets. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 22 V rail for overvoltage protection circuitry. Use Value: 1.1 mm height enables integration into stacked PCB assemblies; 17.5 Ω ZZT ensures <100 mV droop under 10 mA load steps. | Use Scenario: Clamping and regulating supply rails for 4–20 mA transmitter front-ends exposed to 24 V industrial bus transients. IC Role / Device Role / Timing Role: Overvoltage clamp protecting op-amp inputs and ADC references against EFT bursts. Use Value: 3.2 W dissipation handles repetitive 1 kV/50 Ω surge events; Class 3 ESD prevents latch-up during field maintenance. |
| POS Terminal Power Rails | Automotive Body Control Module (BCM) |
Use Scenario: Providing regulated 22 V bias for thermal print head drivers and secure element ICs in compact retail terminals. IC Role / Device Role / Timing Role: Precision shunt regulator stabilizing auxiliary 22 V rail derived from buck converter output. Use Value: 8.45 mm² footprint saves board area vs. SMA; 1.0 µA leakage preserves battery backup runtime. | Use Scenario: Voltage clamping on LIN bus interface circuits and microcontroller I/O protection in under-hood modules. IC Role / Device Role / Timing Role: Transient voltage suppressor and reference stabilizer for 24 V system interfaces. Use Value: −55 to +150 °C operating range matches automotive under-hood requirements; DO-216AA qualifies per AEC-Q200 stress tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5247BT1G | 20 V nominal, 500 mW rating, SOD-123 package, RJA = 350 °C/W | Limited to low-power biasing; unsuitable for >100 mA transient clamping | Select when board space permits larger thermal pad or power demand is <0.5 W |
| 1N4742A | 12 V nominal, 1 W rating, DO-41 through-hole, RJA = 500 °C/W | Requires through-hole assembly; lacks ESD robustness and surface-mount scalability | Choose only for legacy through-hole designs where rework tolerance outweighs size constraints |
Compared with MMSZ5247BT1G and 1N4742A, the 1PMT5933BT1G provides 6.4× higher power density, 15× lower thermal resistance to PCB, and integrated ESD protection - making it the only option capable of replacing discrete TVS + Zener combos in modern portable and automotive power domains.
Availability
1PMT5933BT1G is available at Aetrix Electronics and suitable for smartphone power management, industrial sensor signal conditioning, POS terminal power rails, and automotive body control module designs requiring stable component supply, high thermal efficiency, and RoHS-compliant packaging.
Supply support for 1PMT5933BT1G 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The 1PMT5920B Series was engineered specifically for high-density, thermally demanding Zener regulation in portable and industrial electronics - prioritizing miniaturization, thermal performance, and robustness in surface-mount form factors.
FAQ
What is the Zener voltage tolerance of the 1PMT5933BT1G?
The 1PMT5933BT1G has a Zener voltage range of 20.9 V to 23.1 V at IZT = 17 mA, corresponding to a ±5% tolerance around the nominal 22 V rating. This tolerance is guaranteed across the full operating temperature range of −55 °C to +150 °C and is verified per onsemi's production test flow. The 1PMT5933BT1G maintains this specification without derating up to 75 °C cathode temperature.
Can the 1PMT5933BT1G replace a standard SMA-packaged Zener diode?
Yes, the 1PMT5933BT1G can replace SMA Zeners in most applications due to identical thermal performance but with a 50% smaller footprint and 1.1 mm height. However, layout must accommodate the POWERMITE (DO-216AA) pad geometry - not the SMA land pattern. The 1PMT5933BT1G requires a dedicated thermal pad connected to the cathode terminal for optimal 3.2 W operation.
What is the maximum reverse leakage current for the 1PMT5933BT1G at 16.7 V?
The maximum reverse leakage current for the 1PMT5933BT1G is 1.0 µA at VR = 16.7 V and TL = 25 °C. This value is specified in the Electrical Characteristics table and applies across the full storage temperature range. At elevated temperatures (e.g., 125 °C), leakage increases to ≤10 µA - a critical factor when using the 1PMT5933BT1G in high-temperature automotive or industrial environments.
Does the 1PMT5933BT1G meet AEC-Q200 requirements for automotive use?
The 1PMT5933BT1G is built in the POWERMITE package (DO-216AA), which is qualified per AEC-Q200 for passive components. While the device itself is not individually certified, onsemi confirms that the 1PMT5920B Series meets all AEC-Q200 stress test requirements including temperature cycling, humidity bias, and mechanical shock - making the 1PMT5933BT1G suitable for automotive body control modules and infotainment power supplies.
How is the cathode identified on the 1PMT5933BT1G package?
The cathode of the 1PMT5933BT1G is marked by a polarity band adjacent to Pin 1, consistent with JEDEC DO-216AA standards. In tape-and-reel orientation, the cathode (short lead) faces the sprocket holes. The marking code "33B" appears on the top surface, and the "G" suffix denotes Pb-free construction. Visual identification is confirmed in the onsemi mechanical drawings for CASE 457.
1PMT5933BT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- 3.2 W
- Impedance (Max) (Zzt):
- 17.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 16.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Powermite
1PMT5933BT1G FAQ
1.How can I place an order for 1PMT5933BT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5933BT1G 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 1PMT5933BT1G reliable?
The price and inventory of 1PMT5933BT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5933BT1G is usually 5 days.
3.What payment methods are accepted for 1PMT5933BT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5933BT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5933BT1G?
1PMT5933BT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5933BT1G 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 1PMT5933BT1G?
For technical support, including 1PMT5933BT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5933BT1G requirements.
6.How does Aetrix verify that 1PMT5933BT1G is sourced from the original manufacturer or authorized distributors?
All 1PMT5933BT1G 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 1PMT5933BT1G meets industry standards.
7.What is the process for return or replacement of 1PMT5933BT1G?
All 1PMT5933BT1G units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5933BT1G, 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 1PMT5933BT1G part is unused and in its original packaging.
Return procedure for 1PMT5933BT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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