Product Overview
Motorola MPS6521 - NPN Silicon Amplifier Transistor, 25V 100mA, TO-92
Condition
New. Unused, new old stock. The photo shows a representative unit from our stock.
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Product Overview
The MPS6521 is an NPN silicon amplifier transistor in a TO-92 plastic case, published at 25 V and 100 mA with 625 mW of dissipation (the Motorola and onsemi MPS6520-MPS6521 data).
850 are on the shelf, sold each. The representative unit photographed is a dark plastic TO-92 with the flat face lettered in three lines: a small printed dot and MPS on the top line, 6521 under it, and the Motorola batwing followed by 910 at the bottom. 910 is the code string as found on the body and it stays that way here - no Motorola or onsemi document behind this page decodes those digits, so we will not sell you a manufacture year we cannot cite. The three leads are through-hole, full length, straight and parallel, and photograph bright against a dark speckled bench surface.
Key Features
- Polarity: NPN silicon amplifier transistor
- VCEO: 25 V; VCBO 40 V; VEBO 4 V (per the published MPS6520-MPS6521 data)
- IC: 100 mA continuous (per the same published data)
- PD: 625 mW (per the same published data)
- TJ: -55 degC to +150 degC (per the same published data)
- Package: TO-92 plastic case (TO-226AA), three through-hole leads
- Pinout as published for this part: pin 1 emitter, pin 2 base, pin 3 collector
- Complementary PNP type: not confirmed in the published data we work from, so none is named here
- Body marking on the unit photographed: dot, MPS, 6521, Motorola batwing, 910
- Verify against the published Motorola/onsemi MPS6520-MPS6521 data before designing in.
Applications
- Small signal amplifier stages on a 25 V rail or lower
- Low current NPN switching under 100 mA
- Production or classroom quantities where one part number covers many positions
- Restocking a legacy board run built around MPS-prefix TO-92 parts
Frequently Asked Questions
How many should I order?
Order the count the build needs, and here you can order like you mean it. 850 are on the shelf, sold one at a time, so a run of boards, the spares, and the handful you will inevitably cook on the bench can all come off this one listing without splitting the order or waiting on a restock. Shipping is $8 flat rate and free on orders over $28, so small parts like this ship smartest as part of a larger order.
Which lead is the base on this TO-92?
This is the one part in the group where we can answer it from published data instead of pointing you at a meter. The published MPS6520-MPS6521 data gives pin 1 as the emitter, pin 2 as the base and pin 3 as the collector. Two cautions before you lay out a board on that: TO-92 pin order is not shared across part numbers, so nothing here transfers to the 2N or MPF parts, and the leads on the unit photographed are full length and untrimmed, which means you can form them to a footprint but you can also form them into the wrong one. Confirm the assignment against the published MPS6520-MPS6521 data once, then build 850 boards on it if you like.
850 of one part number on the shelf, enough for the run, the spares, and the ones you cook on the bench.
