My Inquiry
My Account
Microchip Technology 1PMT5949AE3/TR7
- Part No.:
- 1PMT5949AE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5949AE3/TR7.pdf
- Description:
- DIODE ZENER 100V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,747
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1PMT5949AE3/TR7 from Microsemi is a 100 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 250 Ω dynamic impedance at 3.7 mA test current and 3100 µA max reverse leakage at 76 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails of industrial control modules.
For engineers reviewing the 1PMT5949AE3/TR7 datasheet, 1PMT5949AE3/TR7 pinout, 1PMT5949AE3/TR7 application, or 1PMT5949AE3/TR7 equivalent, key selection criteria include zener voltage accuracy, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance, and compatibility with automated SMT assembly per EIA-481 tape-and-reel packaging.
Technical Context
This device operates as a two-terminal voltage-regulating diode with cathode designated by TAB 1. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and eliminate solder flux entrapment during reflow.
Electrical behavior is defined at TL = 30°C with zener voltage measured 20 seconds after applying DC test current; dynamic impedance is derived using 60 Hz RMS AC current equal to 10% of IZT. Thermal resistance is specified as 30°C/W from junction to TAB 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 100 V ±5% at IZT = 3.7 mA - sets precise clamping threshold for 100 V rail protection |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables high-power regulation without external heatsink |
| Dynamic Impedance (ZZT) | 250 Ω at IZT = 3.7 mA - ensures stable voltage under small-signal load variations |
| Reverse Leakage (IR) | 3100 µA max at VR = 76 V - defines minimum holding voltage before breakdown |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - supports thermal management via PCB copper pour under TAB |
| ESD Rating | >16 kV per Human Body Model - provides robustness against handling and system-level ESD events |
| Knee Current (IZK) | 0.25 mA - indicates onset of regulated conduction at low-current biasing conditions |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat sink locking tab; cathode identified by TAB 1; mounting position unrestricted; weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and electrical cathode connection; must be soldered to thermal pad for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for circuit return path |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling in compact footprint |
| Full metallic bottom | Eliminates solder flux entrapment during assembly, improving long-term reliability and void-free solder joints |
| Integral heat sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB copper |
| ESD robustness | >16 kV HBM rating reduces need for external ESD protection in board-level designs |
| Tight voltage tolerance option | ±2% (suffix C) and ±1% (suffix D) available - supports high-accuracy reference applications |
Applications
| Industrial Power Supply Clamp | Automotive ECU Voltage Reference |
|---|---|
Use Scenario: Clamping transient overvoltage on 100 V DC bus in programmable logic controller (PLC) backplane. IC Role / Device Role / Timing Role: Two-terminal shunt regulator providing fail-safe voltage limiting. Use Value: Prevents damage to downstream 100 V-rated MOSFET drivers during load dump events. | Use Scenario: Stable 100 V reference for analog sensor signal conditioning in engine control unit (ECU) power domain. IC Role / Device Role / Timing Role: Precision Zener reference source for ADC biasing and comparator thresholds. Use Value: Maintains measurement accuracy across -40°C to +125°C ambient due to low tempco and 30°C/W thermal resistance. |
| Telecom Line Card Protection | Renewable Energy Inverter Gate Drive Clamp |
Use Scenario: Overvoltage suppression on 48 V–100 V hybrid power feeds in telecom line cards. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across DC input stage. Use Value: Absorbs 3.0 W surges without derating, validated per GR-1089-CORE lightning surge requirements. | Use Scenario: Clamping gate drive supply rail in 100 V-class SiC MOSFET half-bridge inverters for solar microinverters. IC Role / Device Role / Timing Role: Shunt regulator stabilizing isolated gate driver supply under fast switching transients. Use Value: Low 250 Ω ZZT minimizes voltage droop during high di/dt gate current pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5375B | Same 100 V nominal, but DO-41 through-hole package; 5 W rating; higher thermal resistance (~65°C/W) | Requires manual or wave soldering; unsuitable for high-density SMT layouts | Select when legacy through-hole design or higher peak pulse power is required |
| BZX84-C100 | SOT-23 package; 300 mW rating; 100 V ±5%; no metallic thermal tab | Limited to low-power bias/reference use; cannot sustain 3.0 W continuous dissipation | Select only for space-constrained low-power circuits where thermal performance is secondary |
Compared with 1N5375B and BZX84-C100, the 1PMT5949AE3/TR7 uniquely delivers 3.0 W SMT-compatible regulation with direct thermal path via TAB 1 - enabling compact, high-reliability designs where power density and ESD robustness are critical.
Availability
1PMT5949AE3/TR7 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, telecom line cards, and renewable energy inverters requiring stable component supply with full traceability and lifecycle support.
Supply support for 1PMT5949AE3/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 with superior thermal performance and assembly reliability - specifically targeting space-constrained, high-stress environments like motor drives and power conversion systems.
FAQ
What is the maximum continuous power dissipation for 1PMT5949AE3/TR7?
The 1PMT5949AE3/TR7 is rated for 3.0 W DC power dissipation when TAB 1 temperature is maintained at 60°C. This rating assumes proper thermal design - including adequate PCB copper area under TAB 1 - and accounts for voltage rise at higher currents per Micro Note 202. Derating is required above 60°C TAB temperature.
How is the cathode identified on the 1PMT5949AE3/TR7 package?
The cathode of the 1PMT5949AE3/TR7 is designated by TAB 1, which is the larger metallic tab on the package bottom. This tab serves as both the cathode electrical connection and the primary thermal conduction path. The anode is connected to Lead 2, the smaller side terminal.
Does 1PMT5949AE3/TR7 meet any industry-standard ESD specifications?
Yes, the 1PMT5949AE3/TR7 has an ESD rating exceeding 16 kV per the Human Body Model (HBM), as verified in the MSC0995 datasheet. This level of robustness supports direct handling and integration into systems exposed to routine electrostatic discharge without requiring additional protection circuitry.
What is the zener voltage tolerance for standard 1PMT5949AE3/TR7 units?
The standard 1PMT5949AE3/TR7 has a zener voltage tolerance of ±5% at 100 V nominal. Tighter tolerances are available: ±2% with suffix "C" (e.g., 1PMT5949CE3/TR7) and ±1% with suffix "D", both sharing identical thermal and packaging characteristics with the base part.
Is 1PMT5949AE3/TR7 compatible with standard SMT reflow profiles?
Yes, the 1PMT5949AE3/TR7 is qualified for standard lead-free reflow soldering per J-STD-020. Its Powermite® package features a full metallic bottom that ensures uniform heating and eliminates flux entrapment - supporting high-yield, void-free solder joints in automated assembly lines using EIA-481 tape-and-reel format (3,000 pcs per 7-inch reel).
1PMT5949AE3/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):
- 100 V
- Tolerance:
- ±10%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 250 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 76 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
1PMT5949AE3/TR7 FAQ
1.How can I place an order for 1PMT5949AE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5949AE3/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 1PMT5949AE3/TR7 reliable?
The price and inventory of 1PMT5949AE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5949AE3/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5949AE3/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5949AE3/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5949AE3/TR7?
1PMT5949AE3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5949AE3/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 1PMT5949AE3/TR7?
For technical support, including 1PMT5949AE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5949AE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5949AE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5949AE3/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 1PMT5949AE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5949AE3/TR7?
All 1PMT5949AE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5949AE3/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 1PMT5949AE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5949AE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5949AE3/TR7 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
