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Microchip Technology 1PMT5949BE3/TR13
- Part No.:
- 1PMT5949BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5949BE3/TR13.pdf
- Description:
- DIODE ZENER 100V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,725
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Product details
Overview
1PMT5949BE3/TR13 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 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-protected signal conditioning circuits.
For engineers reviewing the 1PMT5949BE3/TR13 datasheet, 1PMT5949BE3/TR13 pinout, 1PMT5949BE3/TR13 application, or 1PMT5949BE3/TR13 equivalent, key selection criteria include its 100 V nominal Zener voltage, 3.0 W power handling in a DO-216 outline, low reverse leakage (≤1 µA at 76 V), ESD rating >16 kV HBM, and compatibility with automated SMT assembly.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage under varying load and temperature conditions. Its Powermite® package features a full metallic bottom and integral locking tab that functions as both mechanical anchor and heat sink, enabling efficient thermal transfer from junction to PCB via TAB 1.
The device exhibits tight voltage regulation with 250 Ω dynamic impedance at IZT = 3.7 mA and maintains ≤1 µA reverse leakage up to 76 V, supporting reliable clamping in transient suppression and reference applications across –55°C to +150°C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 100 V ±5% at IZT = 3.7 mA - defines precise clamping/reference level |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables high-energy transient absorption without derating |
| Dynamic Impedance ZZT | 250 Ω at 3.7 mA - ensures minimal voltage shift under small-signal current variation |
| Reverse Leakage IR | ≤1 µA at VR = 76 V - guarantees low standby power loss in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB1 - allows direct thermal path to PCB copper for sustained power operation |
| ESD Rating | >16 kV per HBM - provides robust protection against human-body electrostatic discharge events |
| Junction Temp Range | –55°C to +150°C - supports deployment in automotive under-hood and industrial control environments |
Pinout & Package
Package: Powermite® (DO-216) surface-mount molded case 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-sinking terminal and voltage reference node; must be connected to ground or low-impedance return path |
| Lead 2 | Anode | Current entry point during forward conduction; used for biasing or sensing in active clamp configurations |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability and solder joint integrity |
| Integral locking tab | Acts as mechanical anchor and thermal interface to PCB, reducing thermal resistance by direct metal-to-copper contact |
| Automated insertion compatibility | Enables high-throughput placement using standard pick-and-place equipment without custom tooling |
| Low reverse leakage | ≤1 µA at 76 V ensures minimal error current in precision reference and high-Z sensor bias circuits |
Applications
| Power Supply Overvoltage Clamp | Industrial Sensor Reference |
|---|---|
Use Scenario: Protects downstream DC-DC converter inputs from input rail surges exceeding 100 V in 24/48 V industrial systems. IC Role / Device Role / Timing Role: Zener clamping element placed between input rail and ground, conducting only above 100 V threshold. Use Value: Absorbs up to 3.0 W transient energy while holding voltage within ±5% tolerance, preventing IC damage without external series resistance. | Use Scenario: Provides stable 100 V reference for high-voltage current-sense amplifier biasing in motor drive feedback loops. IC Role / Device Role / Timing Role: Precision voltage reference source with low leakage ensuring minimal offset drift in analog front-end circuits. Use Value: Maintains ≤1 µA reverse leakage at 76 V, preserving accuracy in high-impedance bias networks where leakage would otherwise induce error. |
| ESD-Protected Signal Line | Automotive Body Control Module |
Use Scenario: Shields CAN transceiver data lines from ESD events in factory automation interfaces. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor leveraging Zener breakdown in both polarities when paired with companion diode. Use Value: >16 kV HBM rating combined with fast response enables compliance with IEC 61000-4-2 Level 4 without additional TVS stages. | Use Scenario: Regulates auxiliary 100 V rail derived from alternator output in commercial vehicle lighting control units. IC Role / Device Role / Timing Role: Primary voltage reference for microcontroller ADC calibration and PWM gate driver supply monitoring. Use Value: Stable 100 V ±5% output across –40°C to +125°C ambient, supported by 30°C/W thermal resistance to chassis ground. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5949BRLG | Same 100 V nominal Zener voltage and ±5% tolerance, but in axial DO-41 package with higher thermal resistance (50°C/W) | Limited to lower-power or through-hole designs; unsuitable for high-density SMT layouts | Choose when legacy board design requires axial leaded replacement or thermal constraints allow higher RθJA |
| BZX84-C100LT1G | 100 V Zener in SOT-23 package, rated 300 mW only; dynamic impedance 500 Ω at 5 mA | Not suitable for 3 W surge clamping; intended for low-current bias/reference use | Select only for space-constrained low-power reference roles where 3.0 W capability is unnecessary |
Compared with 1N5949BRLG and BZX84-C100LT1G, the 1PMT5949BE3/TR13 uniquely delivers 3.0 W power handling in an SMT-compatible Powermite® package with 30°C/W thermal resistance-enabling high-reliability clamping in compact, thermally demanding applications where axial or low-power alternatives fall short.
Availability
1PMT5949BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, ESD-protected communication interfaces, and high-voltage sensor reference circuits requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for 1PMT5949BE3/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 semiconductor company specializing in high-reliability analog, mixed-signal, and RF solutions for aerospace, defense, industrial, and communications markets.
The Powermite® Zener diode product line was designed to deliver high-power surface-mount voltage regulation and transient suppression in space-constrained, thermally demanding applications-replacing larger axial devices without sacrificing performance.
FAQ
What is the Zener voltage tolerance for 1PMT5949BE3/TR13?
The 1PMT5949BE3/TR13 has a standard Zener voltage tolerance of ±5% at 100 V nominal, measured at 3.7 mA test current with TAB 1 held at 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D respectively, but the E3/TR13 variant specifies ±5%. This tolerance directly impacts voltage regulation accuracy in reference and clamping applications.
How is thermal management handled in the 1PMT5949BE3/TR13 package?
The 1PMT5949BE3/TR13 uses the Powermite® package with a full metallic bottom and integral locking tab that serves as the primary thermal path. Its specified thermal resistance is 30°C/W junction-to-TAB1, meaning effective heat transfer requires direct connection of TAB 1 to a large copper pour or heatsink on the PCB. This design eliminates flux entrapment and enhances reliability over conventional SMT diodes.
Can 1PMT5949BE3/TR13 be used in bidirectional ESD protection?
The 1PMT5949BE3/TR13 is a unidirectional Zener diode with cathode on TAB 1. For bidirectional ESD protection, it must be paired with a second diode in series opposition or used in conjunction with a dedicated bidirectional TVS array. Its >16 kV HBM rating applies only in the reverse-biased (Zener) direction; forward conduction is limited to 1.2 V at 200 mA and not rated for ESD clamping.
What is the maximum reverse voltage before breakdown for 1PMT5949BE3/TR13?
The 1PMT5949BE3/TR13 begins controlled Zener breakdown at its nominal 100 V rating, with guaranteed regulation starting at 76 V (VR max). Reverse leakage remains ≤1 µA up to 76 V; beyond this, current increases sharply per the Zener characteristic. The absolute maximum non-destructive reverse voltage is defined by its 3.0 W power limit and thermal design-not a fixed voltage ceiling.
Is 1PMT5949BE3/TR13 compatible with lead-free reflow processes?
Yes, the 1PMT5949BE3/TR13 is qualified for standard lead-free reflow profiles, including JEDEC J-STD-020 moisture sensitivity level (MSL) 1 rating. Its Powermite® package withstands peak temperatures up to 260°C for 10 seconds. Proper PCB pad design per Microsemi's mounting recommendations-especially thermal relief for TAB 1-is required to ensure void-free solder joints and optimal thermal performance.
1PMT5949BE3/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):
- 100 V
- Tolerance:
- ±5%
- 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
1PMT5949BE3/TR13 FAQ
1.How can I place an order for 1PMT5949BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5949BE3/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 1PMT5949BE3/TR13 reliable?
The price and inventory of 1PMT5949BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5949BE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5949BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5949BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5949BE3/TR13?
1PMT5949BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5949BE3/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 1PMT5949BE3/TR13?
For technical support, including 1PMT5949BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5949BE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5949BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5949BE3/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 1PMT5949BE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5949BE3/TR13?
All 1PMT5949BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5949BE3/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 1PMT5949BE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5949BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5949BE3/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
-
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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