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Microchip Technology 1PMT5947AE3/TR13
- Part No.:
- 1PMT5947AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5947AE3/TR13.pdf
- Description:
- DIODE ZENER 82V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,880
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Product details
Overview
1PMT5947AE3/TR13 from Microsemi is a 82 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 160 Ω dynamic impedance at 4.6 mA test current and 2500 µA max reverse leakage at 62.2 V, used for precision voltage regulation in compact power supply rails.
For engineers reviewing the 1PMT5947AE3/TR13 datasheet, 1PMT5947AE3/TR13 pinout, 1PMT5947AE3/TR13 application, or 1PMT5947AE3/TR13 equivalent, key selection criteria include zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance, and compatibility with automated SMT assembly.
Technical Context
This Zener diode operates as a two-terminal voltage reference device, conducting in reverse breakdown to clamp or regulate voltage across load circuits. Its Powermite® package integrates a full metallic bottom and locking tab for mechanical stability and thermal conduction to PCB copper.
Designed for stable operation from −55°C to +150°C junction temperature, it delivers specified zener voltage (82 V) at 4.6 mA test current with 160 Ω dynamic impedance and maintains ≤2500 µA reverse leakage up to 62.2 V, supporting reliable regulation under varying load and thermal conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 82 V ±5% at IZT = 4.6 mA, TC = 30°C - defines nominal regulation point with tight production control |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables high-power regulation in ultra-compact surface-mount form factor |
| Dynamic Impedance (ZZT) | 160 Ω at IZT = 4.6 mA - determines output voltage variation under small-signal AC load changes |
| Reverse Leakage (IR) | ≤2500 µA at VR = 62.2 V - ensures minimal quiescent current in standby or low-power modes |
| Thermal Resistance | 30°C/W junction-to-TAB - allows direct thermal path to PCB copper pad for effective heat removal |
| ESD Rating | >16 kV per Human Body Model - provides robust handling immunity during automated assembly and board handling |
Pinout & Package
Package: Powermite® (DO-216AA), molded surface-mount package with full metallic bottom and integral heat sink locking tab; cathode designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat sink interface and electrical cathode connection; must be soldered to copper pour for thermal and electrical performance |
| Lead 2 | Anode | Standard anode terminal; mounted opposite TAB 1, compatible with standard SMT pick-and-place nozzles |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling in footprint smaller than DO-41 |
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term solder joint reliability and process yield |
| Integral heat sink locking tab | Provides mechanical anchoring and low-thermal-resistance path (30°C/W) from junction to PCB copper |
| ESD robustness | >16 kV HBM rating supports handling in non-ESD-controlled manufacturing environments without additional protection |
Applications
| Industrial Power Supply Regulation | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Stabilizing 12 V rail references in isolated auxiliary supplies for microcontroller reset circuits and sensor biasing. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage regulator and overvoltage clamp. Use Value: Maintains 82 V reference stability across −40°C to +125°C ambient with ≤2500 µA leakage, enabling fail-safe reset generation. | Use Scenario: Protecting CAN transceiver input pins from load-dump transients in 24 V vehicle systems. IC Role / Device Role / Timing Role: Transient voltage suppression via controlled reverse breakdown at 82 V. Use Value: Clamps surge energy within 3.0 W thermal limit using TAB 1 copper thermal path, preventing IC damage without external heatsink. |
| Telecom DC-DC Converter Feedback | Medical Diagnostic Equipment Biasing |
Use Scenario: Providing precise voltage reference for optocoupler feedback loop in isolated 48 V telecom rectifiers. IC Role / Device Role / Timing Role: Zener reference establishing regulated output setpoint in secondary-side feedback network. Use Value: 82 V ±5% tolerance and 160 Ω dynamic impedance ensure <±1% output regulation accuracy under line/load transients. | Use Scenario: Generating stable high-voltage bias for photomultiplier tube (PMT) anode chains in portable X-ray detectors. IC Role / Device Role / Timing Role: Precision shunt regulator supplying calibrated 82 V bias with low noise and drift. Use Value: Low 2500 µA leakage at 62.2 V and 30°C/W thermal resistance enable stable bias over extended operating cycles without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5947BRLG | Same 82 V zener voltage, but in DO-41 through-hole package; higher thermal resistance (~50°C/W) and no metallic bottom | Requires manual or wave soldering; unsuitable for high-density SMT layouts or automated insertion | Select only when legacy through-hole assembly or higher pulse power margin is required |
| BZX84-C82LT1G | 82 V SOT-23 Zener; lower 350 mW power rating, 300 Ω dynamic impedance, and 100 µA leakage at 65.6 V | Limited to low-power signal-level regulation; cannot replace 1PMT5947AE3/TR13 in 3 W applications | Use only in space-constrained low-current bias networks where thermal load is negligible |
Compared with 1N5947BRLG and BZX84-C82LT1G, the 1PMT5947AE3/TR13 uniquely combines 3.0 W SMT power handling, 30°C/W thermal resistance, and >16 kV ESD rating-making it the only option for high-reliability, high-power, fully automated Zener regulation in industrial and automotive PCBs.
Availability
1PMT5947AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive body control modules, telecom DC-DC converter feedback, and medical diagnostic equipment biasing requiring stable component supply and full traceability.
Supply support for 1PMT5947AE3/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, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was engineered to deliver high-power voltage regulation in miniature surface-mount packages for space-constrained, thermally demanding applications such as telecom infrastructure and automotive electronics.
FAQ
What is the zener voltage tolerance for 1PMT5947AE3/TR13?
The 1PMT5947AE3/TR13 has a standard zener voltage tolerance of ±5% at 82 V, measured at 4.6 mA test current and TAB temperature of 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D respectively, but the E3 suffix indicates the standard ±5% version. This tolerance ensures predictable regulation across production lots without requiring post-assembly trimming.
How is thermal management handled in the 1PMT5947AE3/TR13 package?
The 1PMT5947AE3/TR13 uses the Powermite® package with a full metallic bottom and integral locking tab that serves as both mechanical anchor and primary thermal path. Its specified junction-to-TAB thermal resistance is 30°C/W, meaning effective heat transfer requires soldering TAB 1 directly to a copper pour on the PCB. This design eliminates reliance on lead-frame conduction alone, enabling sustained 3.0 W operation in compact layouts.
Can 1PMT5947AE3/TR13 be used in automotive applications?
Yes, the 1PMT5947AE3/TR13 is qualified for automotive use with a junction temperature range of −55°C to +150°C and >16 kV ESD rating per HBM. Its 3.0 W power rating and low reverse leakage (≤2500 µA at 62.2 V) make it suitable for load-dump clamping and voltage reference functions in body control modules and infotainment power supplies, provided TAB 1 is thermally anchored to PCB copper.
What does the "TR13" suffix indicate in 1PMT5947AE3/TR13?
The "TR13" suffix denotes tape-and-reel packaging per EIA Standard 481 on a 13-inch reel containing 12,000 units. This format is optimized for high-volume SMT assembly lines, ensuring consistent feeding into pick-and-place machines. The "E3" portion specifies the ±5% zener voltage tolerance and Powermite® package variant, distinguishing it from through-hole or tighter-tolerance versions.
Is the 1PMT5947AE3/TR13 RoHS compliant?
Yes, the 1PMT5947AE3/TR13 is RoHS compliant and lead-free, consistent with Microsemi's compliance documentation for the Powermite® Zener family. It meets EU Directive 2011/65/EU requirements, including restrictions on lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE. Full compliance documentation is available upon request from Aetrix Electronics for audit and certification purposes.
1PMT5947AE3/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):
- 82 V
- Tolerance:
- ±10%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 160 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 62.2 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
1PMT5947AE3/TR13 FAQ
1.How can I place an order for 1PMT5947AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5947AE3/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 1PMT5947AE3/TR13 reliable?
The price and inventory of 1PMT5947AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5947AE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5947AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5947AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5947AE3/TR13?
1PMT5947AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5947AE3/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 1PMT5947AE3/TR13?
For technical support, including 1PMT5947AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5947AE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5947AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5947AE3/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 1PMT5947AE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5947AE3/TR13?
All 1PMT5947AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5947AE3/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 1PMT5947AE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5947AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5947AE3/TR13 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
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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