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Microchip Technology 1PMT5927AE3/TR7
- Part No.:
- 1PMT5927AE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5927AE3/TR7.pdf
- Description:
- DIODE ZENER 12V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,024
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Product details
Overview
1PMT5927AE3/TR7 from Microsemi is a 12 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 6.5 Ω dynamic impedance at 31.2 mA test current and thermal resistance of 30°C/W junction-to-TAB1. It serves as a precision voltage reference or overvoltage clamp in DC power rails and regulator feedback paths.
For engineers reviewing the 1PMT5927AE3/TR7 datasheet, 1PMT5927AE3/TR7 pinout, 1PMT5927AE3/TR7 application, or 1PMT5927AE3/TR7 equivalent, key selection criteria include Zener voltage tolerance, power derating above 60°C, knee current (0.25 mA), reverse leakage (<1 µA at 9.1 V), and ESD robustness (>16 kV HBM).
Technical Context
This device operates as a two-terminal voltage-regulating diode with sharp Zener breakdown at nominal 12 V. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and mechanical stability during reflow or wave soldering.
Electrical behavior is defined under controlled thermal conditions: Zener voltage is measured at IZT = 31.2 mA with TAB 1 held at 30°C; dynamic impedance (ZZT) is derived using 60 Hz AC superimposed at 10% of IZT; reverse leakage is specified at VR = 9.1 V (85% of VZ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12 V ±5% at IZT = 31.2 mA - defines stable regulation point for feedback or clamping |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - requires heatsinking or layout-aware thermal relief for sustained operation |
| Dynamic Impedance | 6.5 Ω at IZT - low impedance ensures minimal output voltage variation under load transients |
| Knee Current (IZK) | 0.25 mA - minimum current needed to enter useful regulation region near VZ |
| Reverse Leakage | <1 µA at VR = 9.1 V - enables low-power standby mode without significant quiescent loss |
| Thermal Resistance | 30°C/W junction-to-TAB1 - quantifies temperature rise per watt; TAB 1 must be thermally anchored |
| ESD Rating | >16 kV HBM - supports handling and assembly in non-ESD-controlled environments |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1; weight ≈ 0.016 g; DO-216 outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and electrical cathode connection; must be soldered to copper pour for thermal management |
| Lead 2 | Anode | Standard anode terminal; mounted opposite TAB 1; no thermal function |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and high-density PCB layouts while delivering 3 W power handling in miniature footprint |
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability and void-free solder joints |
| Integral heat-sink locking tab | Provides mechanical anchoring and direct thermal path from junction to PCB copper, reducing θJC to 30°C/W |
| ESD robustness | >16 kV Human Body Model rating allows safe handling without dedicated ESD controls in production |
Applications
| DC Power Rail Clamping | Feedback Reference in SMPS |
|---|---|
Use Scenario: Protecting 12 V logic supply against transient overvoltage events such as load dump or inductive kickback. IC Role / Device Role / Timing Role: Shunt clamping device that conducts excess current when rail exceeds 12.6 V (upper 5% limit), diverting energy to ground. Use Value: Prevents damage to downstream regulators and microcontrollers without requiring active control circuitry. | Use Scenario: Providing stable voltage reference for optocoupler-based feedback loop in isolated 12 V output flyback converter. IC Role / Device Role / Timing Role: Precision Zener element setting error amplifier reference point; maintains output regulation within ±5% across line/load/temperature. Use Value: Enables tight output tolerance without external trimming, leveraging 6.5 Ω ZZT for low sensitivity to current variation. |
| Low-Power Sensor Biasing | Industrial Analog Input Protection |
Use Scenario: Biasing analog sensor outputs (e.g., RTD bridges) requiring stable 12 V excitation in battery-powered condition monitoring nodes. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) voltage source enabling microamp-level bias current integrity. Use Value: Maintains measurement accuracy by minimizing parasitic current draw from sensitive bridge circuits. | Use Scenario: Front-end overvoltage protection for 4–20 mA analog input channels exposed to field wiring faults. IC Role / Device Role / Timing Role: Fast-acting shunt limiter clamping induced surges before they reach precision ADC front-end. Use Value: Survives repeated 1 kV/µs transients due to robust 3 W surge capability and >16 kV HBM ESD rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | DO-41 through-hole package; 12 V ±5%; 1 W rating; higher ZZT (9 Ω); no metallic thermal tab | Limited to lower-power, non-automated assembly; unsuitable for thermal-critical or high-density SMT designs | Select only if board space and thermal performance are non-critical and through-hole assembly is required. |
| BZX84-C12 | SOT-23 package; 12 V ±5%; 300 mW rating; ZZT = 25 Ω; thermal resistance ~250°C/W | Not suitable for >100 mA continuous operation; inadequate for 3 W clamping or regulator reference roles | Use only in ultra-low-power signal-level referencing where size is paramount and power < 300 mW. |
Compared with 1N4742A and BZX84-C12, the 1PMT5927AE3/TR7 delivers 3× the power handling and 4–10× lower dynamic impedance in an SMT package with engineered thermal path-making it uniquely suited for industrial power rail stabilization where reliability, density, and thermal control converge.
Availability
1PMT5927AE3/TR7 is available at Aetrix Electronics and suitable for DC power rail clamping, SMPS feedback referencing, low-power sensor biasing, and industrial analog input protection requiring stable component supply and long-lifecycle support.
Supply support for 1PMT5927AE3/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 U.S.-based 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 was designed to deliver high-power surface-mount voltage regulation in compact, thermally optimized packages for mission-critical power conditioning and protection applications.
FAQ
What is the Zener voltage tolerance for 1PMT5927AE3/TR7?
The 1PMT5927AE3/TR7 has a standard Zener voltage tolerance of ±5% at 12 V, measured at 31.2 mA test current with TAB 1 held at 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D, but the E3/TR7 variant specifies ±5%. This tolerance directly impacts regulation accuracy in feedback and clamping applications.
How is thermal management handled for 1PMT5927AE3/TR7?
The 1PMT5927AE3/TR7 relies on TAB 1 as its primary thermal path, with a specified junction-to-TAB thermal resistance of 30°C/W. Effective thermal management requires soldering TAB 1 to a minimum 100 mm² copper pour with ≥2 thermal vias. Derating begins above 60°C TAB temperature, reaching zero power at 150°C.
Can 1PMT5927AE3/TR7 be used in place of a 1N4742A?
No, the 1PMT5927AE3/TR7 is not a drop-in replacement for the 1N4742A due to fundamental differences: different package (Powermite® vs. DO-41), mounting method (SMT vs. through-hole), thermal design (metallic tab vs. leadframe), and power rating (3 W vs. 1 W). Board redesign and thermal validation are required.
What is the maximum reverse leakage current for 1PMT5927AE3/TR7?
The maximum reverse leakage current for 1PMT5927AE3/TR7 is 1 µA at VR = 9.1 V (85% of nominal VZ). This low leakage supports use in battery-powered or high-impedance sensing circuits where quiescent current must remain below microamp levels without compromising regulation stability.
Does 1PMT5927AE3/TR7 meet any industry-standard ESD ratings?
Yes, the 1PMT5927AE3/TR7 is rated for >16 kV per Human Body Model (HBM), as confirmed in the MSC0995 datasheet. This level of ESD robustness allows safe handling and automated assembly in standard manufacturing environments without requiring additional ESD mitigation steps during placement or soldering.
1PMT5927AE3/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):
- 12 V
- Tolerance:
- ±10%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 6.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 9.1 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
1PMT5927AE3/TR7 FAQ
1.How can I place an order for 1PMT5927AE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5927AE3/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 1PMT5927AE3/TR7 reliable?
The price and inventory of 1PMT5927AE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5927AE3/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5927AE3/TR7?
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4.How is shipping managed for 1PMT5927AE3/TR7?
1PMT5927AE3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5927AE3/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 1PMT5927AE3/TR7?
For technical support, including 1PMT5927AE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5927AE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5927AE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5927AE3/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 1PMT5927AE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5927AE3/TR7?
All 1PMT5927AE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5927AE3/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 1PMT5927AE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5927AE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5927AE3/TR7 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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