# Transistor PNP BC557A, 50V Vce, 0.1A Ic, TO-92 package

**URL:** https://aio.lv/en/product--transistor-pnp-bc557a-50v-vce-01a-ic-to-92-package--6378488
**Data updated:** 2026-02-12 14:20 (EET)
**Category:** Other Repair Parts
**Manufacturer code:** EB80241124#
**EAN:** 3100001037849
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1.18 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 0.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--transistor-pnp-bc557a-50v-vce-01a-ic-to-92-package--6378488

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

BC557A is a PNP general-purpose transistor in a TO-92 package with a maximum collector–emitter voltage of 50 V and a maximum collector current of 0.1 A. Suitable for small-signal amplification, switching and general low-power analog circuits. Compact through-hole form factor for prototyping and PCB use; easy to mount and replace.

## Long description

BC557A is a PNP general-purpose transistor in a TO-92 through-hole package. It features a maximum collector–emitter voltage of 50 V and a maximum collector current of 0.1 A, making it suitable for small-signal amplification, low-power switching and general analog circuitry. The compact TO-92 form factor allows easy mounting on prototype boards and PCBs, and the device is commonly used where a reliable low-current PNP transistor is required.
Advantages
The BC557A offers stable low-current performance with predictable gain characteristics, a small footprint for space-constrained designs and compatibility with standard through-hole assembly methods. Its PNP polarity complements NPN counterparts in push–pull stages and makes it useful for signal-level switching and amplification. Thermal and electrical characteristics are appropriate for low-power analog circuits and hobbyist or educational electronics projects.
Suitable for
 Small-signal amplification in audio or sensor circuits
 Low-current switching and signal routing
 Complementary stages in push–pull amplifiers
 Prototyping on breadboards and through-hole PCBs
 Educational electronics and hobby projects
Key specifications
 Transistor type: PNP bipolar junction transistor
 Maximum collector–emitter voltage (Vce): 50 V
 Maximum collector current (Ic): 0.1 A
 Package: TO-92 through-hole
 Intended use: small-signal, low-power analog and switching
How to use
Place the transistor on the PCB or breadboard with correct pin orientation for emitter, base and collector according to the circuit schematic. Use appropriate base resistors to limit base current when driving the transistor from logic-level signals. Ensure the collector–emitter voltage and collector current remain within the specified limits during operation. Provide adequate biasing for linear amplification or proper drive levels for switching applications, and observe correct polarity for a PNP device in the circuit topology.
Usage recommendations
For reliable operation, avoid exceeding the 50 V collector–emitter rating and the 0.1 A collector current. Use heat dissipation measures if the transistor dissipates significant power in continuous operation, and include protective resistors or current-limiting elements when interfacing with higher-voltage sources. Match transistor gain expectations in amplifier designs and test prototypes at intended supply voltages and temperatures.

## FAQ

### How much does the Transistor BC557A PNP 50V 0.1A TO-92 cost, and is it available for purchase?

The price is 1.18 € (valid at the time of publication and already includes all taxes). The item is available for order — 80 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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