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Microchip Technology 1PMT5927A/TR13
- Part No.:
- 1PMT5927A/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5927A/TR13.pdf
- Description:
- DIODE ZENER 12V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,288
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Product details
Overview
1PMT5927A/TR13 from Microsemi is a 12 V, 3.0 W surface-mount Zener diode in the Powermite® package with cathode designated by TAB 1, 6.5 Ω dynamic impedance at 31.2 mA test current, and thermal resistance of 30°C/W junction-to-tab - used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the 1PMT5927A/TR13 datasheet, 1PMT5927A/TR13 pinout, 1PMT5927A/TR13 application, or 1PMT5927A/TR13 equivalent, key selection criteria include zener voltage tolerance (±5%), reverse leakage ≤1 µA at 9.1 V, ESD rating >16 kV HBM, and compatibility with EIA-481 tape-and-reel automated assembly.
Technical Context
This Zener diode operates as a two-terminal voltage reference device with stable breakdown behavior under reverse bias. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and mechanical retention during reflow soldering.
The device exhibits tight knee characteristics (IZK = 0.25 mA, ZZK = 550 Ω) and low dynamic impedance (ZZT = 6.5 Ω), enabling accurate regulation across load variations while maintaining low power loss at nominal current (IZT = 31.2 mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12 V ±5% at IZT = 31.2 mA - defines regulated output voltage in shunt regulator designs |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous power handling with heatsink tab |
| Dynamic Impedance | 6.5 Ω at IZT - determines output voltage stability under varying load current |
| Reverse Leakage | ≤1 µA at VR = 9.1 V - ensures minimal standby current in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB1 - enables thermal design using tab as primary heat path |
| ESD Rating | >16 kV per Human Body Model - supports robust handling in automated SMT lines without special precautions |
Pinout & Package
Package: Powermite® surface-mount molded case with full metallic bottom and integral heat sink locking tab; cathode identified by TAB 1; DO-216 outline; weight ≈0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal and electrical connection point; 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 |
|---|---|
| Integral heat sink locking tab | Provides mechanical anchoring during reflow and reduces thermal resistance by direct metal-to-PCB contact |
| Full metallic bottom | Eliminates solder flux entrapment risk, improving long-term reliability and solder joint integrity |
| Automated insertion compatibility | Designed for pick-and-place and reflow processes per EIA-481 tape-and-reel standards |
| Low reverse leakage | ≤1 µA at 9.1 V enables use in ultra-low-power bias and sensing applications |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters via optocoupler feedback network. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 12 V threshold for error amplifier input. Use Value: Maintains ±1% output regulation across line/load/temperature with 6.5 Ω dynamic impedance limiting error drift. | Use Scenario: Clamps transient surges on 12 V rail in automotive body control modules. IC Role / Device Role / Timing Role: Fast-acting crowbar element diverting excess energy to ground during load dump events. Use Value: Withstands 3.0 W peak dissipation and >16 kV ESD, preventing downstream IC damage without external TVS. |
| Industrial Sensor Biasing | Programmable Logic Controller Input Protection |
Use Scenario: Supplies stable 12 V bias to bridge-based pressure transducers in factory automation systems. IC Role / Device Role / Timing Role: Low-noise, low-leakage voltage reference ensuring ADC accuracy in 24-bit measurement chains. Use Value: ≤1 µA reverse leakage avoids loading high-impedance sensor outputs; 30°C/W thermal resistance prevents self-heating drift. | Use Scenario: Protects digital input pins of PLC I/O modules against field-wiring induced transients. IC Role / Device Role / Timing Role: Primary clamping diode in series with current-limiting resistor on 12 V logic inputs. Use Value: 12 V breakdown voltage matches common industrial logic thresholds; Powermite® package allows dense layout without thermal derating. |
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 power rating; higher thermal resistance (~50°C/W) | Requires PCB through-hole mounting; unsuitable for high-density SMT layouts or high-power dissipation | Select only when legacy through-hole assembly or lower cost outweighs thermal and space constraints |
| BZX84-C12 | SOT-23 package; 12 V ±5%; 300 mW power; 85 Ω dynamic impedance; no integral heat sink tab | Limited to low-power biasing; cannot sustain 31.2 mA continuous current without derating | Prefer for portable electronics where size matters more than power handling or thermal performance |
Compared with 1N4742A and BZX84-C12, the 1PMT5927A/TR13 delivers 3× the power capability of the SOT-23 part and superior thermal management versus the DO-41 device - making it the only option rated for sustained 31.2 mA operation in compact SMT designs requiring stable 12 V regulation.
Availability
1PMT5927A/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, automotive overvoltage protection, and programmable logic controller input conditioning requiring stable component supply and consistent parametric performance.
Supply support for 1PMT5927A/TR13 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 and mixed-signal components for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was engineered for high-power density surface-mount voltage regulation in space-constrained, thermally demanding environments - particularly where automated assembly and long-term reliability are critical.
FAQ
What is the zener voltage tolerance for 1PMT5927A/TR13?
The 1PMT5927A/TR13 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% and ±1%) are available with suffixes C and D respectively, but the base part number 1PMT5927A/TR13 specifies ±5%.
How is the cathode identified on 1PMT5927A/TR13?
The cathode of the 1PMT5927A/TR13 is designated by TAB 1 - the larger metallic tab on the package bottom. This tab serves as both the cathode terminal and the primary thermal path; correct orientation is essential for proper circuit operation and thermal management.
What is the maximum reverse leakage current for 1PMT5927A/TR13?
The maximum reverse leakage current for 1PMT5927A/TR13 is 1 µA at a reverse voltage of 9.1 V, measured at TL = 30°C. This low leakage supports precision biasing in high-impedance circuits and minimizes quiescent power loss in battery-powered systems.
Can 1PMT5927A/TR13 be used in automated SMT assembly?
Yes, the 1PMT5927A/TR13 is fully compatible with automated insertion equipment and supplied in EIA-481 tape-and-reel format (13-inch reel, 12,000 pieces). Its Powermite® package features a locking tab and full metallic bottom designed specifically for reliable pick-and-place and reflow soldering.
What is the thermal resistance of 1PMT5927A/TR13?
The thermal resistance of 1PMT5927A/TR13 is 30°C/W from junction to TAB 1. This value assumes direct thermal coupling between the metallic tab and a sufficiently sized copper pad on the PCB, enabling effective heat dissipation at its rated 3.0 W power level.
1PMT5927A/TR13 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
1PMT5927A/TR13 FAQ
1.How can I place an order for 1PMT5927A/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5927A/TR13 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 1PMT5927A/TR13 reliable?
The price and inventory of 1PMT5927A/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5927A/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5927A/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5927A/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5927A/TR13?
1PMT5927A/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5927A/TR13 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 1PMT5927A/TR13?
For technical support, including 1PMT5927A/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5927A/TR13 requirements.
6.How does Aetrix verify that 1PMT5927A/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5927A/TR13 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 1PMT5927A/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5927A/TR13?
All 1PMT5927A/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5927A/TR13, 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 1PMT5927A/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5927A/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5927A/TR13 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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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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