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Microchip Technology 1PMT5933BE3/TR7
- Part No.:
- 1PMT5933BE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5933BE3/TR7.pdf
- Description:
- DIODE ZENER 22V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,005
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Product details
Overview
1PMT5933BE3/TR7 from Microsemi is a 22 V, ±5% tolerance surface-mount Zener diode in the Powermite® package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 17.5 Ω dynamic impedance at 17 mA test current and thermal resistance of 30°C/W junction-to-TAB1. It serves as a precision voltage reference or overvoltage clamp in power supply regulation and ESD protection circuits.
For engineers reviewing the 1PMT5933BE3/TR7 datasheet, 1PMT5933BE3/TR7 pinout, 1PMT5933BE3/TR7 application, or 1PMT5933BE3/TR7 equivalent, key selection criteria include its 22 V nominal Zener voltage, 3.0 W power handling in a DO-216 (Powermite®) package, 16.7 V minimum Zener current (IZM), and >16 kV HBM ESD rating - all critical for compact, high-reliability industrial and automotive voltage stabilization designs.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation across its specified test current range. Its Powermite® package features a full metallic bottom and integral heat sink locking tab, enabling efficient thermal transfer to PCB copper and eliminating solder flux entrapment during reflow assembly.
The device exhibits low reverse leakage (≤1 µA at VR = 16.7 V), 17.5 Ω dynamic impedance at IZT = 17 mA, and a knee current (IZK) of 0.25 mA - confirming stable regulation onset and suitability for low-current reference applications where sharp knee characteristics are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V ±5% at IZT = 17 mA - defines nominal clamping/reference voltage under standard test conditions |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - maximum continuous DC power handling with defined thermal mounting condition |
| Dynamic Impedance (ZZT) | 17.5 Ω at IZT = 17 mA - indicates voltage regulation stability under small-signal AC variations |
| Thermal Resistance | 30°C/W junction-to-TAB1 - quantifies thermal path efficiency from die to mounting tab for thermal design |
| ESD Rating | >16 kV per Human Body Model - confirms robustness against electrostatic discharge in handling and operation |
| Knee Current (IZK) | 0.25 mA - minimum current at which Zener conduction begins with usable regulation slope |
| Reverse Leakage (IR) | ≤1 µA at VR = 16.7 V - ensures minimal standby current in clamping or reference configurations |
Pinout & Package
The 1PMT5933BE3/TR7 uses a DO-216 (Powermite®) surface-mount package with cathode designated by TAB 1. The molded case has a full metallic bottom and integral heat sink locking tab for mechanical retention and thermal conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat sink interface and electrical cathode connection; must be soldered to thermal pad for rated power dissipation |
| Lead 2 | Anode | Standard anode terminal; reverse-biased connection for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | DO-216 footprint enables automated placement and eliminates through-hole assembly steps |
| Integral heat sink locking tab | Mechanical tab ensures secure mounting while enhancing thermal conduction from junction to PCB |
| Full metallic bottom | Prevents solder flux entrapment during reflow, improving long-term reliability and void-free solder joints |
| ESD robustness | >16 kV HBM rating supports use in environments with high static charge exposure without external protection |
Applications
| Industrial Power Supply Regulation | Automotive ECU Voltage Clamping |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converters for programmable logic controllers. IC Role / Device Role / Timing Role: Precision Zener reference providing 22 V setpoint for TL431-based error amplifiers. Use Value: Tight ±5% VZ tolerance and low ZZT ensure stable output regulation under load transients and temperature variation. | Use Scenario: Protecting microcontroller I/O pins from load-dump-induced voltage spikes in engine control units. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp limiting transient excursions to ≤22 V. Use Value: 3.0 W power rating and 30°C/W thermal resistance allow sustained clamping without thermal runaway during 100 ms spikes. |
| Medical Sensor Signal Conditioning | Telecom Line Interface Protection |
Use Scenario: Biasing and protecting analog front-end op-amps in portable ultrasound signal chains. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) Zener reference establishing stable bias point for rail-to-rail input stages. Use Value: Sub-µA IR at 16.7 V prevents signal offset drift and maintains accuracy in low-power, high-impedance sensor nodes. | Use Scenario: Secondary surge suppression on Ethernet PHY power rails in PoE-powered switches. IC Role / Device Role / Timing Role: Standby clamping element absorbing residual energy after primary TVS activation. Use Value: >16 kV HBM rating and DO-216 package compatibility enable integration into space-constrained line card layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF22A (ON Semiconductor) | 22 V, 200 W peak pulse power, SOD-123FL package, 1.5 Ω dynamic impedance | Better suited for transient suppression vs. precision regulation due to higher pulse rating and lower ZZT | Select SMF22A when surge immunity dominates over DC regulation stability |
| BZX84-C22 (Diodes Inc.) | 22 V, 300 mW, SOT-23 package, 55 Ω dynamic impedance, ±5% tolerance | Limited to low-power biasing; lacks thermal performance and power handling of 1PMT5933BE3/TR7 | Choose BZX84-C22 only for space-constrained, sub-500 mW reference applications |
Compared with SMF22A and BZX84-C22, the 1PMT5933BE3/TR7 delivers superior DC power handling (3.0 W), lower thermal resistance (30°C/W), and optimized Zener knee behavior for stable regulation - making it the preferred choice for industrial power supplies and automotive clamping where sustained power dissipation matters.
Availability
1PMT5933BE3/TR7 is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive ECU voltage clamping, and medical sensor signal conditioning requiring stable component supply and traceable sourcing.
Supply support for 1PMT5933BE3/TR7 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
Microsemi (now part of Microchip Technology) is a semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line, including the 1PMT5933BE3/TR7, was designed for high-power-density voltage regulation and transient protection in harsh-environment applications where thermal performance and mechanical robustness are critical.
FAQ
What is the Zener voltage tolerance for 1PMT5933BE3/TR7?
The 1PMT5933BE3/TR7 has a standard Zener voltage tolerance of ±5% at 22 V, measured at IZT = 17 mA with TAB 1 held at 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D respectively, but the E3/TR7 variant specifies ±5%. This tolerance directly impacts regulation accuracy in feedback loops and reference circuits using the 1PMT5933BE3/TR7.
How is thermal management handled for 1PMT5933BE3/TR7 in PCB layout?
The 1PMT5933BE3/TR7 relies on TAB 1 as its primary thermal path, with a specified junction-to-TAB thermal resistance of 30°C/W. To achieve rated 3.0 W dissipation, TAB 1 must be soldered to a sufficient copper area (e.g., ≥100 mm² thermal pad with multiple vias to inner ground planes). The Powermite® package's full metallic bottom and locking tab enhance this conduction, unlike standard SOD packages - critical for reliable operation of the 1PMT5933BE3/TR7 in thermally demanding environments.
Does 1PMT5933BE3/TR7 meet automotive qualification standards?
The 1PMT5933BE3/TR7 is not explicitly AEC-Q200 qualified per its datasheet, but it operates across –55°C to +150°C junction temperature and offers >16 kV HBM ESD rating - characteristics aligned with automotive under-hood requirements. Customers deploying the 1PMT5933BE3/TR7 in automotive ECUs should perform system-level validation per AEC-Q101 stress tests, as the 1PMT5933BE3/TR7's Powermite® construction and thermal robustness support such use cases despite lacking formal certification.
What is the maximum reverse leakage current for 1PMT5933BE3/TR7?
The maximum reverse leakage current (IR) for 1PMT5933BE3/TR7 is 1 µA at VR = 16.7 V, measured at TL = 30°C. This low leakage ensures minimal error contribution in precision reference applications and preserves battery life in always-on circuits. The value is confirmed in the Electrical Characteristics table of the MSC0995 datasheet and applies directly to the 1PMT5933BE3/TR7 under specified test conditions.
Can 1PMT5933BE3/TR7 be used in place of through-hole Zener diodes like 1N5247B?
The 1PMT5933BE3/TR7 is not a direct replacement for 1N5247B due to different packages (DO-216 vs. DO-35), power ratings (3.0 W vs. 500 mW), and thermal paths. While both regulate at ~22 V, the 1PMT5933BE3/TR7 requires PCB thermal design for its higher power, whereas 1N5247B relies on lead conduction. System redesign is needed to use the 1PMT5933BE3/TR7 - especially thermal pad layout - making it unsuitable as a drop-in substitute without validation of the 1PMT5933BE3/TR7's thermal and electrical behavior in the target circuit.
1PMT5933BE3/TR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 17.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 16.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-216AA
1PMT5933BE3/TR7 FAQ
1.How can I place an order for 1PMT5933BE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5933BE3/TR7 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 1PMT5933BE3/TR7 reliable?
The price and inventory of 1PMT5933BE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5933BE3/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5933BE3/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5933BE3/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5933BE3/TR7?
1PMT5933BE3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5933BE3/TR7 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 1PMT5933BE3/TR7?
For technical support, including 1PMT5933BE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5933BE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5933BE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5933BE3/TR7 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 1PMT5933BE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5933BE3/TR7?
All 1PMT5933BE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5933BE3/TR7, 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 1PMT5933BE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5933BE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5933BE3/TR7 Tags
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